Key facts
- Constellation
- Sculptor
- Right ascension
- 00 37 41.1368
- Declination
- −33 ° 42 ′ 58.712 ″
- Redshift
- 0.030 187 ± 0.000 01
- Heliocentric radial velocity
- 9,050 ± 3 km/s
- Distance
- 500 Mly (150 Mpc )
- Type
- S pec (Ring)
- Size
- 57.69 kpc (188,200 ly), (diameter; 25.0 mag/arcsec B-band isophote)
- Apparent size v
- 1.1′ × 0.9′
- Notable features
- Ring shape
via Wikipedia infobox
Wikidata facts
- Constellation
- Sculptor
- Distance from Earth
- 125
- Image
- Cartwheel Galaxy.jpg
Show 11 more facts
- apparent magnitude
- 12.600
- discoverer or inventor
- Fritz Zwicky
- time of discovery or invention
- 1941-00-00
- radial velocity
- 9212
- redshift
- 0.029764
- Commons category
- Cartwheel Galaxy
- catalog code
- APMBGC 350-124-058
- declination
- -33.7163306
- right ascension
- 9.4212792
- epoch
- J2000.0
- galaxy morphological type
- S:r
Sources (3)
via Wikidata · CC0
~7 min read
Encyclopedic overview
The Cartwheel Galaxy (catalogue ESO 350-40 and PGC 2248) is a lenticular ring galaxy about 500 million light-years away in the constellation Sculptor. It has a D25 isophotal diameter of 57.69 kiloparsecs (188,200 light-years), and a mass of about 2.9–4.8 billion solar masses; its outer ring has a circular velocity of 217 km/s.
It was discovered by Fritz Zwicky in 1941. Zwicky considered his discovery "one of the most complicated structures awaiting its explanation on the basis of stellar dynamics."
Excerpted from Wikipedia’s “Cartwheel galaxy” article, available under the CC BY-SA 4.0 licence.