List of star-forming regions in the Local Group

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

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]

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]
Rho Oph 247.025 -24.541
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 5.3911 265.0794 +1.4048 700
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
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]

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

References

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External links

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