by APOD Robot » Mon Mar 18, 2019 4:09 am
Horsehead and Orion Nebulas
Explanation: The dark
Horsehead Nebula and the glowing
Orion Nebula are contrasting cosmic vistas. Adrift 1,500
light-years away in one of
the night sky's most recognizable
constellations, they appear in opposite corners of the above
stunning two-panel mosaic. The familiar
Horsehead nebula appears as a dark cloud on the lower left, a small
silhouette notched against the glow of hydrogen (
alpha) gas, here tinted orange.
Alnitak is the easternmost star in
Orion's belt and can be found to the left of the
Horsehead. Below Alnitak is the
Flame Nebula, with clouds of bright emission and
dramatic dark dust lanes. The magnificent emission region, the
Orion Nebula (aka M42), lies at the upper right, surrounded by the blue glow of reflecting dust. Immediately to its left is a prominent
reflection nebula sometimes called the Running Man. Pervasive
tendrils of glowing hydrogen gas are easily
traced throughout the region.
[url=https://apod.nasa.gov/apod/ap190318.html] [img]https://apod.nasa.gov/apod/calendar/S_190318.jpg[/img] [size=150]Horsehead and Orion Nebulas[/size][/url]
[b] Explanation: [/b] The dark [url=https://apod.nasa.gov/apod/ap171227.html]Horsehead Nebula[/url] and the glowing [url=https://apod.nasa.gov/apod/ap171129.html]Orion Nebula[/url] are contrasting cosmic vistas. Adrift 1,500 [url=https://spaceplace.nasa.gov/light-year/en/]light-years[/url] away in one of [url=https://apod.nasa.gov/apod/ap030207.html]the night sky's[/url] most recognizable [url=http://en.wikipedia.org/wiki/Constellation]constellations[/url], they appear in opposite corners of the above [url=https://www.astrobin.com/391962/0/?nc=user]stunning two-panel mosaic[/url]. The familiar [url=http://en.wikipedia.org/wiki/Horsehead_Nebula]Horsehead[/url] nebula appears as a dark cloud on the lower left, a small [url=https://apod.nasa.gov/apod/ap171203.html]silhouette[/url] notched against the glow of hydrogen ([url=https://en.wikipedia.org/wiki/H-alpha]alpha[/url]) gas, here tinted orange. [url=http://www.gb.nrao.edu/~rmaddale/Education/OrionTourCenter/belt.html]Alnitak[/url] is the easternmost star in [url=https://apod.nasa.gov/apod/ap090210.html]Orion's belt[/url] and can be found to the left of the [url=http://drawsketch.about.com/library/bl-step-horsehead.htm]Horsehead[/url]. Below Alnitak is the [url=https://apod.nasa.gov/apod/ap141209.html]Flame Nebula[/url], with clouds of bright emission and [url=https://apod.nasa.gov/apod/ap090929.html]dramatic[/url] dark dust lanes. The magnificent emission region, the [url=http://en.wikipedia.org/wiki/Orion_nebula]Orion Nebula[/url] (aka M42), lies at the upper right, surrounded by the blue glow of reflecting dust. Immediately to its left is a prominent [url=http://antwrp.gsfc.nasa.gov/apod/reflection_nebulae.html]reflection nebula[/url] sometimes called the Running Man. Pervasive [url=https://apod.nasa.gov/apod/ap090224.html]tendrils[/url] of glowing hydrogen gas are easily [url=http://www.youtube.com/watch?v=NWNWaWUxS5g]traced[/url] throughout the region.
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