Explanation: Grand spiral galaxies often seem to get all the attention, flaunting young, bright, blue star clusters and pinkish star forming regions along graceful, symmetric spiral arms. But small galaxies form stars too, like irregular dwarf galaxy Sextans A. Its young star clusters and star forming regions are gathered into a gumdrop-shaped region a mere 5,000 light-years across. Seen toward the navigational constellation Sextans, the small galaxy lies some 4.5 million light-years distant. That puts it near the outskirts of the local group of galaxies, that includes the large, massive spirals Andromeda and our own Milky Way. Brighter Milky Way foreground stars appear spiky and yellowish in this colorful telescopic view of Sextans A.

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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 irregular galaxy - karlikovaya galaktika - Nepravil'naya galaktika Publikacii so slovami: dwarf irregular galaxy - karlikovaya galaktika - Nepravil'naya galaktika
Sm. takzhe: IC 2574: tumannost' Koddingtona Regul i karlikovaya galaktika NGC 6822: galaktika Barnarda Nepravil'naya galaktika NGC 55 NGC 4449: malen'kaya galaktika krupnym planom Vol'f-Lundmark-Melott Palomar 12 Vse publikacii na tu zhe temu >>