Astronomy Picture of the Day
    


Unraveling NGC 3169
<< Yesterday 6.11.2015 Tomorrow >>
Unraveling NGC 3169
Credit & Copyright: Warren Keller, Steve Mazlin, Jack Harvey, Steve Menaker (SSRO/ UNC/PROMPT/ CTIO)
Explanation: Spiral galaxy NGC 3169 appears to be unraveling in this cosmic scene, played out some 70 million light-years away just below bright star Regulus toward the faint constellation Sextans. Its beautiful spiral arms are distorted into sweeping tidal tails as NGC 3169 (top) and neighboring NGC 3166 interact gravitationally, a common fate even for bright galaxies in the local universe. In fact, drawn out stellar arcs and plumes, indications of gravitational interactions, seem rampant in the deep and colorful galaxy group photo. The picture spans 20 arc minutes, or about 400,000 light-years at the group's estimated distance, and includes smaller, dimmer NGC 3165 at bottom right. NGC 3169 is also known to shine across the spectrum from radio to X-rays, harboring an active galactic nucleus that is likely the site of a supermassive black hole.

January
February
March
April
May
June
July
August
September
October
November
December
 < November 2015  >
Mo Tu We Th Fr Sa Su






1
2345678
9101112131415
16171819202122
23242526272829
30





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.

Based on Astronomy Picture Of the Day

Publications with keywords: interacting galaxies
Publications with words: interacting galaxies
See also:
All publications on this topic >>