Q754717
Sign in to savespiral galaxy in the constellation Boötes
Astronomical data · SIMBAD
- Object type
- G
- Redshift
- z = 0.003843372797669442
- Morphology
- SAB
- Coordinates
- RA 204.3834° · Dec 8.8851°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Boötes
- Right ascension
- 13 37 32.0235
- Declination
- +08 ° 53 ′ 06.907 ″
- Redshift
- 1151 ± 1 km/ s
- Distance
- 69.1 ± 4.9 Mly (21.19 ± 1.51 Mpc )
- Type
- SAB(rs)bc
- Size
- ~84,600 ly (25.93 kpc ) (estimated)
- Apparent size v
- 6.2 ′ × 4.5 ′
via Wikipedia infobox
~1 min read
Encyclopedic overview
NGC 5248 (also known as Caldwell 45) is a compact intermediate spiral galaxy in the constellation Boötes. Its velocity with respect to the cosmic microwave background is 1437 ± 20 km/s, which corresponds to a Hubble distance of 69.1 ± 4.9 Mly (21.19 ± 1.51 Mpc). However, 17 non redshift measurements give a much closer distance of 42.52 ± 3.16 Mly (13.038 ± 0.969 Mpc). It was discovered on 15 April 1784 by German-British astronomer William Herschel.
NGC 5248 is a member of the NGC 5248 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.
Excerpted from Wikipedia’s “Q754717” article, available under the CC BY-SA 4.0 licence.