{"id":7002,"date":"2025-09-18T04:46:16","date_gmt":"2025-09-18T04:46:16","guid":{"rendered":"https:\/\/spacehaven.space\/spaces\/?post_type=portfolio_item&#038;p=7002"},"modified":"2026-01-01T12:45:02","modified_gmt":"2026-01-01T17:45:02","slug":"the-title","status":"publish","type":"portfolio_item","link":"https:\/\/spacehaven.space\/spaces\/project\/the-title\/","title":{"rendered":"Flaming Nebula"},"content":{"rendered":"\n<style>\n\/* Hotspots for Flaming Star \/ IC 405 \/ IC 410 field *\/\n\n\/* IC 405 \u2013 right big circle *\/\n.hs-ic405{\n  left:71%;\n  top:15%;\n  width:12%;\n  height:6%;\n}\n\n\/* IC 410 \u2013 left mid-size circle *\/\n.hs-ic410{\n  left:23%;\n  top:42%;\n  width:12%;\n  height:6%;\n}\n\n\/* NGC 1893 \u2013 small inner circle *\/\n.hs-ngc1893{\n  left:19%;\n  top:50%;\n  width:12%;\n  height:6%;\n}\n\n\/* 19 Aur \u2013 upper orange star *\/\n.hs-19aur{\n  left:40%;\n  top:36%;\n  width:5%;\n  height:6%;\n}\n\n\/* 18 Aur \u2013 slightly below 19 Aur *\/\n.hs-18aur{\n  left:45%;\n  top:40%;\n  width:5%;\n  height:6%;\n}\n\n\/* 17 Aur \u2013 center low *\/\n.hs-17aur{\n  left:46%;\n  top:53%;\n  width:10%;\n  height:6%;\n}\n\n\/* 16 Aur \u2013 bottom orange star *\/\n.hs-16aur{\n  left:42%;\n  top:73%;\n  width:10%;\n  height:6%;\n}\n<\/style>\n\n\n<!-- Controls -->\n<div class=\"astro-fullbleed\">\n\n  <div class=\"astro-controls\">\n    <label>\n      <input type=\"checkbox\" data-layer=\"ann\" checked>\n      Annotation\n    <\/label>\n    <label>\n      <input type=\"checkbox\" data-layer=\"grid\">\n      Grid\n    <\/label>\n    <label>\n      <input type=\"checkbox\" data-layer=\"stars\">\n      Stars\n    <\/label>\n\n    <button type=\"button\" class=\"astro-reset\">Reset<\/button>\n  <\/div>\n\n  <div class=\"astro-controls-instruction\">\n  (Tap controls above, tap labeled annotations below)\n<\/div>\n  <!-- Stage -->\n  <div class=\"astro-stage\">\n\n    <!-- SAME pixel dimensions for all files -->\n    <img decoding=\"async\" class=\"base\"\n         src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867.jpeg\"\n         alt=\"Clean\" loading=\"eager\">\n\n    <img decoding=\"async\" class=\"ann\"\n         src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/annot_overlay.png\"\n         alt=\"Annotated\" loading=\"eager\">\n\n    <img decoding=\"async\" class=\"grid\"\n         src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/grid_overlay.png\"\n         alt=\"Grid\" loading=\"eager\">\n\n    <img decoding=\"async\" class=\"stars\"\n         src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/stars_overlay.png\"\n         alt=\"Stars\" loading=\"eager\">\n\n<!-- Flaming Star hotspots -->\n\n<a href=\"#ic405\"    class=\"astro-hotspot hs-ic405\"><\/a>\n<a href=\"#ic410\"    class=\"astro-hotspot hs-ic410\"><\/a>\n<a href=\"#ngc1893\"  class=\"astro-hotspot hs-ngc1893\"><\/a>\n\n<a href=\"#16aur\"    class=\"astro-hotspot hs-19aur\"><\/a>\n<a href=\"#16aur\"    class=\"astro-hotspot hs-18aur\"><\/a>\n<a href=\"#16aur\"    class=\"astro-hotspot hs-17aur\"><\/a>\n<a href=\"#16aur\"    class=\"astro-hotspot hs-16aur\"><\/a>\n\n\n  <\/div>\n<\/div>\n\n<script>\ndocument.addEventListener('DOMContentLoaded', () => {\n  const stage = document.querySelector('.astro-stage');\n  const controls = document.querySelector('.astro-controls');\n  if (!stage || !controls) return;\n\n  const checkboxes = controls.querySelectorAll('input[data-layer]');\n  const resetBtn  = controls.querySelector('.astro-reset');\n\n  function applyLayer(cb){\n    const layer = stage.querySelector('.' + cb.dataset.layer);\n    if (!layer) return;\n    layer.classList.toggle('hidden', !cb.checked);\n  }\n\n  \/\/ initialize and wire up\n  checkboxes.forEach(cb => applyLayer(cb));\n  checkboxes.forEach(cb => cb.addEventListener('change', () => applyLayer(cb)));\n\n  if (resetBtn) {\n    resetBtn.addEventListener('click', () => {\n      checkboxes.forEach(cb => { cb.checked = false; applyLayer(cb); });\n    });\n  }\n});\n<\/script>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div id=\"ic405\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">IC 405 \u2014 The Flaming Star Nebula<\/h3>\n\n\n\n<p>The <strong>Flaming Star Nebula (IC 405<\/strong>, to the right above) , about <strong>1,500 light-years<\/strong> from Earth in the constellation <strong>Auriga<\/strong>, glows both <span style=\"color:#ff6666;\"><strong>red<\/strong><\/span> and <span style=\"color:#6699ff;\"><strong>blue<\/strong><\/span> as the brilliant star <strong>AE&nbsp;Aurigae<\/strong> ignites clouds of gas and dust. The red comes from glowing hydrogen, while the blue is starlight reflected by cosmic dust. AE&nbsp;Aurigae is thought to be a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Runaway_star\" target=\"_blank\">runaway star<\/a> ejected from Orion millions of years ago\u2014lighting up this region as it races through space. <br>\u2192 <a href=\"#flaming-details\">Learn more \u203a<\/a><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Distance from Earth<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2248 1,500 light-years<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Overall Diameter<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2248 5 light-years<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Nebula Type<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Mixed emission + reflection<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Illuminating Star<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">AE Aurigae (runaway O-type star)<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Apparent Size<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2248 37\u2032 \u00d7 10\u2032 (\u2248 0.62\u00b0 \u00d7 0.17\u00b0)<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Dominant Emissions<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">H-\u03b1, dust-scattered blue continuum<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Notable Features<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Filamentary H\u2082 regions; aromatic IR emission (PAH)<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Star Formation Activity<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">No confirmed cluster; localized H\u2082 filaments present<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u2192 <a href=\"#flaming-details\">Learn more \u203a<\/a><\/p>\n<\/div>\n\n\n\n<div id=\"ic410\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">IC 410 \u2014 The Tadpoles Nebula<\/h3>\n\n\n\n<p>\n    The <strong>Tadpoles Nebula (IC 410)<\/strong>, about <strong>12,000 light-years<\/strong> from Earth in the constellation <strong>Auriga<\/strong>,\n    is a turbulent <a href=\"https:\/\/en.wikipedia.org\/wiki\/Emission_nebula\" target=\"_blank\">emission nebula<\/a> lit by the young star cluster\n    <strong>NGC 1893<\/strong>. Two long, dusty filaments resemble cosmic tadpoles swimming through glowing hydrogen gas\u2014dense pockets of\n    material where new stars may be forming.  \n    <br>\u2192 <a href=\"#tadpoles-details\">Learn more \u203a<\/a>\n  <\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Distance from Earth<\/strong><\/td><td>\u2248 10,000\u201312,000 light-years<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Overall Diameter<\/strong><\/td><td>\u2248 100 light-years<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Nebula Type<\/strong><\/td><td>Emission nebula (H-II region)<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Associated Cluster<\/strong><\/td><td>NGC 1893<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Cluster Age<\/strong><\/td><td>\u2248 4 million years<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Notable Structures<\/strong><\/td><td>Two \u201ctadpole\u201d pillars ~10 light-years long<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Identified YSOs<\/strong><\/td><td>\u2248 4,600 in the NGC 1893 \/ IC 410 region<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\"><strong>Dominant Emissions<\/strong><\/td><td>H-\u03b1, [O III], [S II]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u2192 <a href=\"#tadpoles-details\">Learn more \u203a<\/a><\/p>\n<\/div>\n\n\n\n<div id=\"ngc1893\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">NGC 1893 \u2014 Young Star Cluster in Auriga<\/h3>\n\n\n\n<p>\n    <strong>NGC 1893<\/strong> is a bright cluster of newborn stars about <strong>12,000 light-years<\/strong> away, embedded within the\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/IC_410\" target=\"_blank\">IC 410 Nebula<\/a>. Formed only a few million years ago, its hot blue\n    stars illuminate and sculpt the surrounding gas and dust, creating the famous \u201ctadpoles.\u201d This cluster represents a laboratory\n    for studying how massive stars shape their birth clouds.  \n    <br>\u2192 <a href=\"#ngc1893-details\">Learn more \u203a<\/a>\n  <\/p>\n<\/div>\n\n\n\n<div id=\"16aur\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\"><strong>Aur 16 through Aur 1<\/strong>9 \u2014 Foreground and background stars<\/h3>\n\n\n\n<p><strong>Aur 16 through Aur 19 <\/strong>are foreground and background stars scattered across the Flaming Star Nebula region in Auriga. They aren\u2019t physically connected to IC 405, but their differing distances and colors help reveal the structure of the nebula: some shine through the gas and dust, dimmed and reddened, while others sit in front of it with clearer, sharper light. The contrast between these stars and the glowing nebula behind them gives the Flaming Star region its depth and three-dimensional appearance.<br>\u2192 <a href=\"#aur16-details\">Learn more \u203a<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns astro-meta-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<h3 class=\"wp-block-heading\">Targets &amp; WCS<\/h3>\n\n\n\n<div class=\"wp-block-group astro-meta is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading astro-meta__title\">Field &amp; Plate Solution<\/h4>\n\n\n\n<ul class=\"wp-block-list astro-meta__list\">\n<li><strong>Center (RA, Dec):<\/strong> (79.599, 33.880)<\/li>\n\n\n\n<li><strong>Center (RA, hms):<\/strong> 05h&nbsp;18m&nbsp;23.803s<\/li>\n\n\n\n<li><strong>Center (Dec, dms):<\/strong> +33\u00b0&nbsp;52&#8242;&nbsp;46.602&#8243;<\/li>\n\n\n\n<li><strong>Size:<\/strong> 3.4&nbsp;\u00d7&nbsp;1.91&nbsp;deg<\/li>\n\n\n\n<li><strong>Radius:<\/strong> 1.948&nbsp;deg<\/li>\n\n\n\n<li><strong>Pixel scale:<\/strong> 6.11&nbsp;arcsec\/pixel<\/li>\n\n\n\n<li><strong>Orientation:<\/strong> Up&nbsp;is&nbsp;338.8\u00b0&nbsp;E&nbsp;of&nbsp;N<\/li>\n<\/ul>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading astro-meta__title\">Mapping &amp; Constellations<\/h4>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"256\" height=\"128\" src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/09\/11360289-3.png\" alt=\"\" class=\"wp-image-7813\" style=\"width:259px;height:auto\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"256\" height=\"256\" src=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/09\/11360289-4.png\" alt=\"\" class=\"wp-image-7814\" style=\"width:260px;height:auto\" srcset=\"https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/09\/11360289-4.png 256w, https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/09\/11360289-4-150x150.png 150w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Equipment &amp; Integration<\/h3>\n\n\n\n<div class=\"wp-block-group astro-setup is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading astro-setup__title\">Imaging Setup<\/h4>\n\n\n\n<ul class=\"wp-block-list astro-setup__list\">\n<li><strong>Scope:<\/strong> William Optics GRAN-TURISMO 81 IV<\/li>\n\n\n\n<li><strong>Camera:<\/strong> ZWO ASI2600MC Pro<\/li>\n\n\n\n<li><strong>Filters:<\/strong> Baader 3.5 \/ 4&nbsp;nm Ultra-Narrowband Filter-Set \u2013 CMOS-optimized (H-alpha \/ O-III \/ S-II)<\/li>\n\n\n\n<li><strong>Mount:<\/strong> iOptron CEM120EC2<\/li>\n\n\n\n<li><strong>Guiding:<\/strong> ZWO ASI290MM Mini Camera, WO UniGuide 50 mm f\/4.0&nbsp;scope<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group astro-integration is-layout-flow wp-block-group-is-layout-flow\">\n<h4 class=\"wp-block-heading astro-integration__title\">Integration<\/h4>\n\n\n\n<ul class=\"wp-block-list astro-integration__list\">\n<li><strong>H\u03b1:<\/strong> 45 \u00d7 300 s = 3 h 45 m<\/li>\n\n\n\n<li><strong>O III:<\/strong> 45 \u00d7 300 s = 3 h 45 m<\/li>\n\n\n\n<li><strong>S II:<\/strong> 45 \u00d7 300 s = 3 h 45 m<\/li>\n\n\n\n<li><strong>Total:<\/strong> 11 h 15 m<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group astro-notes has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">Notes \/ Processing<\/h3>\n\n\n\n<p>Stacking was performed using&nbsp;<a>Astro Pixel Processor<\/a>, which handled calibration and initial integration of the data while producing individual stretched channels for H-alpha, S II, and O III. Star reduction was completed with&nbsp;<a>StarNet v2<\/a>&nbsp;to isolate nebular detail and better emphasize the main structures. The combined processing was carried out in&nbsp;<strong>Affinity Photo<\/strong>&nbsp;using its dedicated astrophotography tools, along with&nbsp;<strong>James Riston\u2019s<\/strong>&nbsp;macro toolset for enhanced workflow control. The three channels were merged and color-mapped in the&nbsp;<strong>Hubble Palette (SHO)<\/strong>, followed by additional stretching and refinement of each channel. Final steps included targeted noise reduction, sharpening, and overall tonal balancing\u2014adjusting brightness, contrast, and color balance\u2014to produce the finished image.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div id=\"flaming-details\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">IC 405 \u2014 Detailed Description and Further Reading<\/h3>\n\n\n\n<p>\n    The <strong>Flaming Star Nebula (IC&nbsp;405)<\/strong> is a mixed\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/Emission_nebula\" target=\"_blank\">emission<\/a> and\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/Reflection_nebula\" target=\"_blank\">reflection nebula<\/a>\n    surrounding the hot O-type star <strong>AE&nbsp;Aurigae<\/strong>, roughly\n    <strong>1,500&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Light-year\" target=\"_blank\">light-years<\/a><\/strong> from Earth.\n    Ultraviolet radiation from AE&nbsp;Aurigae ionizes hydrogen gas, producing the characteristic\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/H-alpha\" target=\"_blank\">H-alpha<\/a> emission that gives the nebula its red hue,\n    while interstellar dust reflects blue starlight. The nebula spans about <strong>5&nbsp;light-years<\/strong> and shows\n    intricate filaments sculpted by stellar winds. AE&nbsp;Aurigae itself is believed to have been ejected from the\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/Orion_Nebula\" target=\"_blank\">Orion&nbsp;Nebula<\/a> region roughly\n    <strong>2.5&nbsp;million&nbsp;years ago<\/strong>, making IC&nbsp;405 a striking example of a\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/Runaway_star\" target=\"_blank\">runaway star<\/a> lighting up its path.\n  <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Further Reading<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/IC_405\" target=\"_blank\">IC 405 \u2014 Wikipedia<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/apod.nasa.gov\/apod\/ap220217.html\" target=\"_blank\">NASA APOD: The Flaming Star Nebula<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/skyandtelescope.org\/astronomy-resources\/ic-405-flaming-star-nebula\/\" target=\"_blank\">Sky &amp; Telescope: Guide to IC 405<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"tadpoles-details\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">IC 410 \u2014 Detailed Description and Further Reading<\/h3>\n\n\n\n<p>\n    <strong>IC 410<\/strong> is a vast <a href=\"https:\/\/en.wikipedia.org\/wiki\/Emission_nebula\" target=\"_blank\">emission nebula<\/a> surrounding the open cluster\n    <strong>NGC 1893<\/strong>, located roughly <strong>12,000 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Light-year\" target=\"_blank\">light-years<\/a><\/strong> away.\n    Radiation from massive, newly formed O- and B-type stars ionizes surrounding hydrogen, producing its deep red\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/H-alpha\" target=\"_blank\">H-alpha<\/a> glow.  \n    Within the cloud, two elongated dark structures\u2014nicknamed the \u201ctadpoles\u201d\u2014are columns of cooler gas being eroded by stellar winds,\n    likely sites of ongoing star formation. The region\u2019s energetic environment offers a glimpse into how clusters sculpt and disperse\n    their natal molecular clouds.\n  <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Further Reading<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/IC_410\" target=\"_blank\">IC 410 \u2014 Wikipedia<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/apod.nasa.gov\/apod\/ap230217.html\" target=\"_blank\">NASA APOD: The Tadpoles of IC 410<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/skyandtelescope.org\/astronomy-resources\/ic-410-tadpoles-nebula\/\" target=\"_blank\">Sky &amp; Telescope: Guide to IC 410<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"ngc1893-details\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">NGC 1893 \u2014 Detailed Description and Further Reading<\/h3>\n\n\n\n<p>\n    <strong>NGC 1893<\/strong> is an open cluster located in the constellation <strong>Auriga<\/strong>, about\n    <strong>12,000 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Light-year\" target=\"_blank\">light-years<\/a><\/strong> from Earth.\n    Containing hundreds of young, massive O- and B-type stars, it lies at the core of the\n    <a href=\"https:\/\/en.wikipedia.org\/wiki\/IC_410\" target=\"_blank\">IC 410 nebula<\/a>. The intense ultraviolet radiation and stellar\n    winds from these stars carve cavities in the surrounding gas, driving the sculpting of the \u201ctadpoles\u201d \u2014 dense globules where new\n    protostars are still forming. The cluster is estimated to be about <strong>4 million years old<\/strong>, making it an ideal site\n    for observing early stellar evolution within an active <a href=\"https:\/\/en.wikipedia.org\/wiki\/Star-forming_region\" target=\"_blank\">star-forming region<\/a>.\n  <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Further Reading<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/NGC_1893\" target=\"_blank\">NGC 1893 \u2014 Wikipedia<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/apod.nasa.gov\/apod\/ap170119.html\" target=\"_blank\">NASA APOD: Cluster NGC 1893 and the Tadpoles of IC 410<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/ngc-1893-star-cluster\/\" target=\"_blank\">NASA Chandra Observation of NGC 1893<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"aur16-details\" class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">Detailed Descriptions (Aur 16 \u2192 Aur 19)<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aur 16 \u2014 Stellar Profile and Context<\/strong><\/h3>\n\n\n\n<p>Aur 16 is a catalog star lying in the line of sight of IC 405. It isn\u2019t part of the nebula but serves as a useful contrast object: its clean starlight shows minimal reddening, suggesting it is in the foreground. This makes Aur 16 a reference for comparing how much the nebular dust dims and reddens background stars across the field.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aur 17 \u2014 Stellar Profile and Context<\/strong><\/h3>\n\n\n\n<p>Aur 17 sits deeper in the field and shows mild color alteration from passing through IC 405\u2019s dusty regions. The star helps highlight how dense patches of dust scatter blue light more strongly than red, one of the key visual effects that defines the Flaming Star Nebula\u2019s appearance. Its relative dimming is a small but measurable indicator of interstellar extinction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aur 18 \u2014 Stellar Profile and Context<\/strong><\/h3>\n\n\n\n<p>Aur 18 is a background star shining through a thinner, filamentary portion of the nebula. This positioning creates a slight halo of scattered light around the star, visible in long exposures and astrophotography. Stars like Aur 18 help map the uneven distribution of dust within IC 405, showing where the nebular material is clumpy or diffuse.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aur 19 \u2014 Stellar Profile and Context<\/strong><\/h3>\n\n\n\n<p>Aur 19 appears against one of the redder H-alpha regions. Its warm tint and reduced brightness make it a textbook example of how hydrogen emission coupled with dust extinction alters the appearance of background stars. Objects like Aur 19 are often used in photometric studies to quantify extinction curves inside nebulae such as IC 405.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Further Reading<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/NGC_1893\" target=\"_blank\">NGC 1893 \u2014 Wikipedia<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/apod.nasa.gov\/apod\/ap170119.html\" target=\"_blank\">NASA APOD: Cluster NGC 1893 and the Tadpoles of IC 410<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/science.nasa.gov\/missions\/chandra\/ngc-1893-star-cluster\/\" target=\"_blank\">NASA Chandra Observation of NGC 1893<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Annotation Grid Stars Reset (Tap controls above, tap labeled annotations below) IC 405 \u2014 The Flaming Star Nebula The Flaming Star Nebula (IC 405, to the right above) , about 1,500 light-years from Earth in the constellation Auriga, glows both red and blue as the brilliant star AE&nbsp;Aurigae ignites clouds of gas and dust. The &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/spacehaven.space\/spaces\/project\/the-title\/\" class=\"more-link\">Read more<span class=\"screen-reader-text\"> &#8220;Flaming Nebula&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":7540,"parent":0,"template":"","meta":{"_wpzb_portfolio_video_type":"","_wpzb_portfolio_video_id":0,"_wpzb_portfolio_video_url":"","footnotes":""},"portfolio":[60,59,45,40],"class_list":["post-7002","portfolio_item","type-portfolio_item","status-publish","has-post-thumbnail","hentry","portfolio-astrophoto","portfolio-nebula","portfolio-obs-details","portfolio-travel"],"featured_media_urls":{"thumbnail":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-150x150.jpeg",150,150,true],"medium":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-300x169.jpeg",300,169,true],"medium_large":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867.jpeg",768,432,false],"large":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1024x576.jpeg",950,534,true],"1536x1536":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1536x864.jpeg",1536,864,true],"2048x2048":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867.jpeg",2000,1125,false],"ultp_layout_landscape_large":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1200x800.jpeg",1200,800,true],"ultp_layout_landscape":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-870x570.jpeg",870,570,true],"ultp_layout_portrait":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-600x900.jpeg",600,900,true],"ultp_layout_square":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-600x600.jpeg",600,600,true],"inspiro-featured-image":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867.jpeg",2000,1125,false],"inspiro-loop":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-950x320.jpeg",950,320,true],"inspiro-loop@2x":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1900x640.jpeg",1900,640,true],"portfolio_item-thumbnail":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-600x400.jpeg",600,400,true],"portfolio_item-thumbnail@2x":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1200x800.jpeg",1200,800,true],"portfolio_item-masonry":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-600x338.jpeg",600,338,true],"portfolio_item-masonry@2x":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1200x675.jpeg",1200,675,true],"portfolio_item-thumbnail_cinema":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-800x335.jpeg",800,335,true],"portfolio_item-thumbnail_portrait":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-600x900.jpeg",600,900,true],"portfolio_item-thumbnail_portrait@2x":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-1200x1125.jpeg",1200,1125,true],"portfolio_item-thumbnail_square":["https:\/\/spacehaven.space\/spaces\/wp-content\/uploads\/2025\/10\/34421867-800x800.jpeg",800,800,true]},"_links":{"self":[{"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/portfolio_item\/7002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/portfolio_item"}],"about":[{"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/types\/portfolio_item"}],"author":[{"embeddable":true,"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":54,"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/portfolio_item\/7002\/revisions"}],"predecessor-version":[{"id":8280,"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/portfolio_item\/7002\/revisions\/8280"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/media\/7540"}],"wp:attachment":[{"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/media?parent=7002"}],"wp:term":[{"taxonomy":"portfolio","embeddable":true,"href":"https:\/\/spacehaven.space\/spaces\/wp-json\/wp\/v2\/portfolio?post=7002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}