NGC 7538
Diffuse nebula in the constellation Cepheus
title: "NGC 7538" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["ngc-objects", "cepheus-(constellation)", "diffuse-nebulae", "sharpless-objects", "star-forming-regions"] description: "Diffuse nebula in the constellation Cepheus" topic_path: "general/ngc-objects" source: "https://en.wikipedia.org/wiki/NGC_7538" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Diffuse nebula in the constellation Cepheus ::
::data[format=table title="Infobox nebula"]
| Field | Value |
|---|---|
| image | NGC 7538.jpg |
| caption | NGC 7538 |
| Herschel 250 μm = Red, Herschel 160 μm = Green, Herschel 70 μm = Blue | |
| name | NGC 7538 |
| epoch | J2000.0 |
| type | diffuse |
| subtype | emission or reflection |
| constellation | Cepheus |
| ra | {{cite simbad |
| title | NGC 7538 |
| access-date | 2006-10-20}} |
| dec | |
| dist_ly | 9,100{{cite journal |
| author | Balog, Z. |
| display-authors | 4 |
| author2 | Kenyon, S. J. |
| author3 | Lada, E. A. |
| author4 | Barsony, M. |
| author5 | Vinkó, J. |
| author6 | Gáspar', A. |
| title | A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster |
| journal | The Astronomical Journal |
| date | 2004 |
| volume | 128 |
| issue | 6 |
| pages | 2942–2953 |
| bibcode | 2004AJ....128.2942B |
| doi | 10.1086/425548 |
| dist_pc | 2,800 |
| size_v | 9′.00 × 6′.0 |
| notes | Contains largest known protostar |
| names | Dreyer's Object, Sharpless 158 |
| :: |
| image = NGC 7538.jpg |caption =NGC 7538 Herschel 250 μm = Red, Herschel 160 μm = Green, Herschel 70 μm = Blue | name = NGC 7538 | epoch = J2000.0 | type = diffuse | subtype = emission or reflection | constellation = Cepheus | ra = {{cite simbad | title=NGC 7538 | access-date=2006-10-20}} | dec = | dist_ly = 9,100{{cite journal | author=Balog, Z. | display-authors=4 | author2=Kenyon, S. J. | author3=Lada, E. A. | author4=Barsony, M. | author5=Vinkó, J. | author6=Gáspar', A. | title=A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster | journal=The Astronomical Journal | date=2004 | volume=128 | issue=6 | pages=2942–2953 | bibcode=2004AJ....128.2942B | doi=10.1086/425548 |arxiv = astro-ph/0409115 | s2cid=9772547 | dist_pc = 2,800 | appmag_v = | size_v = 9′.00 × 6′.0 | radius_ly = | absmag_v = | notes = Contains largest known protostar | names = 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 Arm of the Milky Way and is probably part of the Cassiopeia OB2 complex. It is a region of active star formation including several luminous near-IR and far-IR sources. Stars in NGC 7538 are mainly low-mass pre-main-sequence stars.
References
References
- Fallscheer. (2013). "Herschel Reveals Massive Cold Clumps in NGC 7538". Astrophysical Journal.
- (2010). "A Detailed Study of the Accretion Disk Surrounding the High-Mass Protostar NGC 7538 S". The Astrophysical Journal.
- (2007-05-28). "Triggered Star Formation in a Turbulent Interstellar Medium (IAU S237)". Cambridge University Press.
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