Explanation: Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. But small, irregular galaxies form stars too. In fact dwarf galaxy IC 2574 shows clear evidence of intense star forming activity in its telltale pinkish regions of glowing hydrogen gas. Just as in spiral galaxies, the turbulent star-forming regions in IC 2574 are churned by stellar winds and supernova explosions spewing material into the galaxy's interstellar medium and triggering further star formation. A mere 12 million light-years distant, IC 2574 is part of the M81 group of galaxies, seen toward the northern constellation Ursa Major. Also known as Coddington's Nebula, the lovely island universe is about 50,000 light-years across, discovered by American astronomer Edwin Coddington in 1898.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: dwarf galaxy - star formation - karlikovaya galaktika - zvezdoobrazovanie Publikacii so slovami: dwarf galaxy - star formation - karlikovaya galaktika - zvezdoobrazovanie
Sm. takzhe: IC 348 i Barnard 3 M16: stolpy sozidaniya Zvezdnaya fabrika Mess'e 17 IC 5146: tumannost' Kokon Kometarnye globuly Vybrosy iz protozvezd v Zmee Temnaya tumannost' Lindsa LDN 1251 Vse publikacii na tu zhe temu >>