NGC 7538
From Infogalactic: the planetary knowledge core
| Diffuse nebula | |
|---|---|
|
File:NGC 7538.jpg
NGC 7538 imaged by the Herschel Space Observatory
NGC 7538
[SII] = Red, Hα = Green, [OIII] = Blue |
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| Observation data: J2000.0 epoch | |
| Subtype | emission or reflection |
| Right ascension | 23h 13m 45.7s[1] |
| Declination | +61° 28′ 21″[1] |
| Distance | 9,100[2] ly (2,800 pc) |
| Apparent dimensions (V) | 9′.00 × 6′.0 |
| Constellation | Cepheus |
| Notable features | Contains largest known protostar |
| Designations | Bubble Nebula, Dreyer's Object, Sharpless 158 |
NGC 7538, near the more famous Bubble Nebula, is located in the constellation Cepheus. It is located about 9,100 light-years from Earth. It is home to the biggest yet discovered protostar which is about 300 times the size of the Solar System. It is located in the Perseus Spiral Arm of the Milky Way and is probably part of the Cassiopeia OB2 complex.[2] It is a region of active star formation including several luminous near-IR and far-IR sources.[2]
References
File:CasOB2map(NGC7538).png
Map showing location of NGC 7538 (Roberto Mura)
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