Explanation: While most spiral galaxies, including our own Milky Way, have two or more spiral arms, NGC 4725 seems to have only one. In this sharp color image, the solo spira mirabilis is tightly wound, traced by bluish, newborn star clusters. The odd galaxy also sports obscuring dust lanes, a prominent ring, and a yellowish central bar structure composed of an older population of stars. NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy's overall rotation.

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

Publikacii s klyuchevymi slovami: NGC 4725 - spiral galaxy - spiral arms - spiral'naya galaktika - Spiral'nye vetvi galaktik Publikacii so slovami: NGC 4725 - spiral galaxy - spiral arms - spiral'naya galaktika - Spiral'nye vetvi galaktik
Sm. takzhe: M83: "Yuzhnaya vertushka" Velikolepnaya spiral'naya galaktika NGC 5643 M51: prilivnye potoki i oblako ionizovannogo vodoroda NGC 300: galaktika iz zvezd Spiral'naya galaktika s peremychkoi NGC 1365 ot teleskopa "Dzheims Vebb" Spiral'naya galaktika NGC 6744 M106: spiral'naya galaktika so strannym yadrom Vse publikacii na tu zhe temu >>