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EntityQ917922· pop 36· linked from 405 articles

galaxy

Astronomical data · SIMBAD

Object type
SyG
Redshift
z = 0.004087844049233791
Morphology
SA
Coordinates
RA 153.5627° · Dec 3.4661°
View on SIMBAD →

via SIMBAD · CDS Strasbourg

Key facts

Constellation
Sextans
Right ascension
10 14 15.099
Declination
+03 ° 27 ′ 58.03 ″
Redshift
+0.004113 ± 0.000017
Heliocentric radial velocity
+1,232 km/s
Distance
57 Mly (17.43 Mpc )
Type
SA(s)a pec
Apparent size v
4.2′ × 2.9′

via Wikipedia infobox

~2 min read

Encyclopedic overview

NGC 3169 is a spiral galaxy about 75 million light years away in the constellation Sextans. It has the morphological classification SA(s)a pec, which indicates this is a pure, unbarred spiral galaxy with tightly-wound arms and peculiar features. There is an asymmetrical spiral arm and an extended halo around the galaxy. It is a member of the NGC 3166 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.

This is a LINER 2 galaxy that displays an extended emission of X-rays in the region of the nucleus. A hard X-ray source at the center most likely indicates an active galactic nucleus. The stellar population in the nucleus, and a ring at an angular radius of 6″, shows an age of only one billion years and is generally younger than the surrounding stellar population. This suggests that a burst of star formation took place in the nucleus roughly one billion years ago.

Excerpted from Wikipedia’s “Q917922” article, available under the CC BY-SA 4.0 licence.