List of star-forming regions in the Local Group

This is a list of star-forming regions located in the Milky Way Galaxy and in the Local Group. Star formation occurs in molecular clouds which become unstable to gravitational collapse, and these complexes may contain clusters of young stars and regions of ionized gas called H II regions. Stars typically form in groups of many stars, rather than in isolation.^[1]

Composite image showing young stars in and around molecular cloud Cepheus B.

Galactic star-forming regions

Name	RA [deg]	Dec [deg]	l [deg]	b [deg]	Distance [pc]	Age [Myr]	Earliest SpTy	Number of Stars	Cloud Mass [Mo]
Corona Australis Molecular Cloud	287.368	-37.904			130
Rho Oph	247.025	-24.541	353.22	16.53	131
Taurus Molecular Cloud	070.25	+25.87	174.13	-13.45	140
Orion Nebula	83.8221	-5.3911	209.013	-19.382	415
W40	277.871	-2.090	28.791	+3.481	500 [2]	0.8 [3]	late-O [2]	520 [4][5]
RCW 36	134.7537	-43.0	265.0794	+1.4048	700
Vela Molecular Ridge	134.7537	-43.0	265.0794	+1.4048	700-1000
Cygnus X	307.5	41.0			1400
NGC 6334	260.212	-36.115	351.42	+0.64	1700
NGC 6357	261.62	-34.20	353.11	+0.65	1700
Eagle Nebula	274.700	-13.807	16.95	+0.793	1750
M17	275.196	-16.172	15.06	-0.69	2000
Carina Nebula	161.285	-59.868			2600
AFGL 2591	307.354	40.189	078.887	+0.709	3300 [6]		O9–O6 [7]
W43	281.885	-01.942	30.759	-0.019	6000
W49	287.582	+9.128	43.200	+0.000	11000[8]		O2-3.5If*[9]
Radcliffe wave[10]

Extragalactic star-forming regions

Name	RA [deg]	Dec [deg]	l [deg]	b [deg]	Distance [pc]	Age [Myr]	Earliest SpTy	Number of Stars	Cloud Mass [Mo]
30 Doradus	84.67665	-69.10093	279.4652	-31.6719	49,000

See also

• RCW Catalog – astronomical cataloguePages displaying wikidata descriptions as a fallback
• Sharpless catalog – astronomical cataloguePages displaying wikidata descriptions as a fallback
• Gum catalog – astronomical catalog of emission nebulaePages displaying wikidata descriptions as a fallback
• List of nearest stars and brown dwarfs

References

1. Lada, C. J.; Lada, E. A. (2003). "Embedded Clusters in Molecular Clouds". Annual Review of Astronomy & Astrophysics. 41: 57–115. arXiv:astro-ph/0301540. Bibcode:2003ARA&A..41...57L. doi:10.1146/annurev.astro.41.011802.094844. S2CID 16752089.
2. Shuping, R. Y.; et al. (2012). "Spectral Classification of the Brightest Objects in the Galactic Star-forming Region W40". Astronomical Journal. 144 (4): 116. arXiv:1208.4648. Bibcode:2012AJ....144..116S. doi:10.1088/0004-6256/144/4/116. S2CID 119227485.
3. Getman, K. V.; et al. (2014). "Age Gradients in the Stellar Populations of Massive Star Forming Regions Based on a New Stellar Chronometer". Astrophysical Journal. 787 (2): 108. arXiv:1403.2741. Bibcode:2014ApJ...787..108G. doi:10.1088/0004-637X/787/2/108. S2CID 118626928.
4. Kuhn, M. A.; et al. (2010). "A Chandra Observation of the Obscured Star-forming Complex W40". Astrophysical Journal. 725 (2): 2485–2506. arXiv:1010.5434. Bibcode:2010ApJ...725.2485K. doi:10.1088/0004-637X/725/2/2485. S2CID 119192761.
5. Kuhn, M. A.; Getman, K. V.; Feigelson, E. D. (2015). "The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations". Astrophysical Journal. 802 (1): 60. arXiv:1501.05300. Bibcode:2015ApJ...802...60K. doi:10.1088/0004-637X/802/1/60. S2CID 119309858.
6. Johnston, K. G.; Shepherd, D. S.; Robitaille, T. P.; Wood, K. (2013). "The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591". Astronomy & Astrophysics. 551: A43, 1–23. arXiv:1212.1719. Bibcode:2013A&A...551A..43J. doi:10.1051/0004-6361/201219657. S2CID 54972885.
7. Sanna, A.; Reid, M. J.; Carrasco-González, C.; et al. (2012). "Clustered star formation and outflows in AFGL 2591". The Astrophysical Journal. 745 (2): 191–200. arXiv:1111.0843. Bibcode:2012ApJ...745..191S. doi:10.1088/0004-637X/745/2/191. S2CID 118465380.
8. Zhang, B.; et al. (2013). "Parallaxes for W49N and G048.60+0.02: Distant Star Forming Regions in the Perseus Spiral Arm". Astrophysical Journal. 775 (1): 79. arXiv:1312.3856. Bibcode:2013ApJ...775...79Z. doi:10.1088/0004-637X/775/1/79. S2CID 119257313.
9. Wu, S.-W.; et al. (2014). "The discovery of a very massive star in W49". Astronomy & Astrophysics. 568: L13. arXiv:1407.4804. Bibcode:2014A&A...568L..13W. doi:10.1051/0004-6361/201424154. S2CID 55277847.
10. Sample, Ian (7 January 2020). "Astronomers discover huge gaseous wave holding Milky Way's newest stars". The Guardian. ISSN 0261-3077. Retrieved 2020-01-07 – via www.theguardian.com.

External links

• Simbad