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EntityQ933240· pop 29· linked from 537 articles

unbarred spiral galaxy in the constellation Draco

Key facts

Constellation
Draco
Right ascension
10 16 53.6504
Declination
+73 ° 24 ′ 02.695 ″
Redshift
0.009346 ± 0.000003
Heliocentric radial velocity
2,802 ± 1 km / s
Distance
129 ± 29 Mly (39.6 ± 8.9 Mpc )
Type
SA(rs)bc
Size
~176,600 ly (54.16 kpc ) (estimated)
Apparent size v
3.9′ × 3.5′
Notable features
Seyfert galaxy

via Wikipedia infobox

~5 min read

Encyclopedic overview

NGC 3147 is a spiral galaxy located in the constellation Draco. It is located at a distance of about 130 million light years from Earth, which, given its apparent dimensions, means that NGC 3147 is about 140,000 light years across. It was discovered by William Herschel on April 3, 1785.

Structure

Excerpted from Wikipedia’s “Q933240” article, available under the CC BY-SA 4.0 licence.