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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

Wikidata facts

Constellation
Sextans
Distance from Earth
19.1
Image
NGC 3169 NGC 3166.jpg
Show 11 more facts
catalog code
LEDA 29855
Commons category
NGC 3169
discoverer or inventor
William Herschel
time of discovery or invention
1783-12-19
apparent magnitude
7.283
galaxy morphological type
SAab
right ascension
153.5629125
declination
3.4661194
radial velocity
1251
redshift
0.004180
epoch
J2000.0
Sources (2)

via Wikidata · CC0

~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.