Key facts
- Constellation
- Virgo
- Right ascension
- 12 43 32.3300
- Declination
- +11 ° 34 ′ 58.000 ″
- Heliocentric radial velocity
- 1,409 ± 1 km/s
- Distance
- 57.37 ± 2.99 Mly (17.591 ± 0.918 Mpc )
- Group or cluster
- Virgo Cluster
- Type
- SAB(rs)c
- Size
- ~78,000 ly (23.93 kpc ) (estimated)
- Apparent size v
- 2.9′ × 2.3′
via Wikipedia infobox
Wikidata facts
- Constellation
- Virgo
- Distance from Earth
- 19.10
- Image
- ARP116-HST-NGC4649-R850GB475-NGC4647-R814GB555.jpg
Show 11 more facts
- Commons category
- NGC 4647
- catalog code
- LEDA 42816
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1784-03-15
- apparent magnitude
- 8.049
- galaxy morphological type
- Sc(dSc)
- right ascension
- 190.8855917
- declination
- 11.5824694
- redshift
- 0.00472
- radial velocity
- 1412
- epoch
- J2000.0
via Wikidata · CC0
~2 min read
Encyclopedic overview
NGC 4647 is an intermediate spiral galaxy estimated to be around 63 million light-years away in the constellation of Virgo. It was discovered by German-British astronomer William Herschel on March 15, 1784. NGC 4647 is listed along with Messier 60 as being part of a pair of galaxies called Arp 116; their designation in Halton Arp's Atlas of Peculiar Galaxies. The galaxy is located on the outskirts of the Virgo Cluster.
Interaction with Messier 60
Excerpted from Wikipedia’s “Q1113189” article, available under the CC BY-SA 4.0 licence.