Astronomical data · SIMBAD
- Object type
- GiG
- Redshift
- z = 0.001234949702035637
- Coordinates
- RA 350.5274° · Dec 40.8453°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Andromeda
- Right ascension
- 23 22 06.58
- Declination
- +40 ° 50 ′ 43.5 ″
- Redshift
- 0.001231 ± 0.000004
- Heliocentric radial velocity
- +369 ± 1 km/s
- Distance
- 29.72 ± 0.5 Mly
- Type
- SB(s)c
- Apparent size v
- 10.5′ × 2′
via Wikipedia infobox
Wikidata facts
- Constellation
- Andromeda
- Distance from Earth
- 9
- Image
- NGC 7640 - HST - Potw1706a.tif
Show 11 more facts
- catalog code
- Gaia DR2 1924204863971903360
- Commons category
- NGC 7640
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1786-10-17
- redshift
- 0.001234
- galaxy morphological type
- SBc
- apparent magnitude
- 8.598
- right ascension
- 350.52739292811670
- declination
- 40.84530898423280
- radial velocity
- 423
- epoch
- J2000.0
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 7640 is a barred spiral galaxy in the constellation of Andromeda. Discovered on October 17, 1786 by the English astronomer William Herschel. The galaxy has an 11th visible magnitude and is located about 30 million light-years from Earth.
NGC 7640 might not look much like a spiral, but this is due to the orientation (edge on) of the galaxy with respect to an observer on Earth. There is evidence that this galaxy has experienced an interaction with another galaxy in the (astronomically) recent past.
Excerpted from Wikipedia’s “Q1168459” article, available under the CC BY-SA 4.0 licence.