Astronomical data · SIMBAD
- Object type
- GiC
- Redshift
- z = 0.005844
- Morphology
- SAB
- Coordinates
- RA 28.3054° · Dec 4.1958°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Pisces
- Right ascension
- 01 53 13.2826
- Declination
- +04 ° 11 ′ 44.805 ″
- Redshift
- 0.005 781 ± 0.000 0300
- Heliocentric radial velocity
- 1,733 ± 9 km/s
- Distance
- 69.7 ± 5.0 Mly (21.38 ± 1.54 Mpc )
- Group or cluster
- NGC 676 group
- Type
- SAB(s)a
- Size
- ~99,000 ly (30.35 kpc ) (estimated)
- Apparent size v
- 2.3′ × 2.0′
via Wikipedia infobox
Wikidata facts
- Instance of
- intermediate spiral galaxy
- Constellation
- Pisces
- Distance from Earth
- 24.6
- Image
- NGC 0718 SDSS.jpg
Show 11 more facts
- time of discovery or invention
- 1784-12-13
- discoverer or inventor
- William Herschel
- catalog code
- LEDA 6993
- redshift
- 0.005844
- apparent magnitude
- 8.739
- galaxy morphological type
- SAB(s)a
- Commons category
- NGC 718
- right ascension
- 28.3054792
- declination
- 4.1959167
- radial velocity
- 1747
- epoch
- J2000.0
Sources (1)
via Wikidata · CC0
~2 min read
Encyclopedic overview
NGC 718 is an intermediate spiral galaxy in the constellation of Pisces. Its velocity with respect to the cosmic microwave background is 1,450±22 km/s, which corresponds to a Hubble distance of 69.7 ± 5.0 Mly (21.38 ± 1.54 Mpc). Additionally, one non-redshift measurement gives a similar distance of 69.80 Mly (21.400 Mpc). It was discovered by German-British astronomer William Herschel on 13 December 1784.
NGC 718 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.
Excerpted from Wikipedia’s “NGC 718” article, available under the CC BY-SA 4.0 licence.