Horsehead Nebula

Winter Hexagon

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winter circle,winter stars

The Winter Hexagon, also known as the Winter Circle, is a prominent winter asterism formed by seven stars prominent in the winter sky.

These are Rigel in Orion, Aldebaran in Taurus, Capella in Auriga, Castor and Pollux in Gemini, Procyon in Canis Minor, and Sirius in Canis Major constellation.

Sirius and Procyon are also part of the Winter Triangle, a smaller asterism that these two stars form with Betelgeuse in Orion.
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Flame Nebula

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ngc 2024,emission nebula in orion

The Flame Nebula is an emission nebula located in the constellation Orion, the Hunter. The nebula lies at an approximate distance of 1,350 light years from Earth and has an apparent magnitude of 2. It has the designation NGC 2024 in the New General Catalogue.

The Flame Nebula occupies an area of 30 arcminutes of apparent sky. It is part of a vast star forming region known as the Orion Molecular Cloud Complex.
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Coalsack Nebula

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The Coalsack Nebula is one of the best known dark nebulae in the sky, along with the nearby Dark Doodad Nebula and the Horsehead Nebula. The Coalsack is located in the southern constellation Crux and overlaps into the neighbouring constellations Musca and Centaurus.

The dark cloud of cold gas and dust lies at a distance of 600 light years from Earth and is about 30 to 35 light years across.
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Horsehead Nebula (Barnard 33)

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The Horsehead Nebula is a famous diffuse dark nebula found in the Orion Molecular Cloud Complex in the constellation Orion.

It is a dark cloud composed of dust and gas where star formation is taking place. The nebula is also known as Barnard 33, and is located in the emission nebula IC 434. The Horsehead Nebula is approximately 1,500 light years distant from Earth.
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