Explanation: Galaxies of the NGC 7771 Group are featured in this intriguing skyscape. Some 200 million light-years distant toward the constellation Pegasus, NGC 7771 is the large, edge-on spiral near center, about 75,000 light-years across, with two smaller galaxies just below it. Large spiral NGC 7769 is seen face-on to the right. Galaxies of the NGC 7771 group are interacting, making repeated close passages that will ultimately result in galaxy-galaxy mergers on a cosmic timescale. The interactions can be traced by galaxy distortions and faint streams of stars created by gravitational tides. But a clear view of the galaxy group is difficult to come by, as the deep image also reveals extensive clouds of foreground dust sweeping across the field. The dim, dusty nebulae reflect starlight from our own Milky Way Galaxy and lie only a few hundred light-years above the galactic plane.

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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: dust - group of galaxies - pyl' - gruppa galaktik Publikacii so slovami: dust - group of galaxies - pyl' - gruppa galaktik
Sm. takzhe: Sem' Sester v pyli Temnyi Morskoi konek v Cefee Tumannosti na vysokoi galakticheskoi shirote i gruppa NGC 7771 NGC 7023: tumannost' Iris Pleyady: Sem' Sester v pyli Tri galaktiki v Drakone Gaz i pyl' v tumannosti Golovastik Vse publikacii na tu zhe temu >>