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physical object > naked eye object > Orion Nebula |
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Orion Nebula (M 42) | ||||
subject | fact |
Orion Nebula | has illuminating star(s) trapezium | ![]() |
is a part of Orion | ![]() | |
has age 20000 years | ![]() | |
has Messier number 42 | ![]() | |
has distance 500 pc | ![]() | |
has synonym M 42 | ![]() | |
has image ![]() | ![]() | |
has definition A large cloud of gas and dust giving birth to young stars in the constellation Orion and visible to the naked eye. It is an HII region 1500 light-years away. | ![]() | |
has definition An HII region about 500 pc distant, barely visible to the naked eye in the center of Orion's sword. It is undoubtedly a region where stars are being born; young O stars and many T Tauri variables are associated with it, and its members are extreme Population I. Probably no more than 20000 years old. It is also an X-ray source (3U 0527-05 and M42, NGC 1976). | ![]() | |
has definition The Orion Nebula, a star-forming region in the constellation Orion. | ![]() | |
is an instance of gaseous nebula | ![]() | |
is an instance of naked eye object | ![]() | |
is an instance of Messier object | ![]() | |
Messier object | has apparent dimension | ![]() |
has apparent magnitude | ![]() | |
is a part of celestial sphere | ![]() | |
has catalog Messier catalog | ![]() | |
has purpose originally to catalog all objects which could be confused with a comet | ![]() | |
gaseous nebula | has catalog gaseous nebula catalog | ![]() |
celestial body | has spectra | ![]() |
H II region | has composition ionized hydrogen | ![]() |
physical object | has location or center of gravity | ![]() |
has angular momentum | ![]() | |
has mass | ![]() | |
has velocity | ![]() | |
has momentum | ![]() | |
has temperature | ![]() | |
has volume | ![]() | |
has extent | ![]() | |
has material | ![]() | |
nebula | is a part of gas | ![]() |
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