Key facts
- Constellation
- Centaurus
- Right ascension
- 13 29 13.9170
- Declination
- −33 ° 10 ′ 26.056 ″
- Redshift
- 0.007 969 ± 0.000 002
- Heliocentric radial velocity
- 2,389 ± 1 km/s
- Distance
- 74.15 ± 2.53 Mly (22.736 ± 0.777 Mpc )
- Type
- SA(s)c
- Apparent size v
- 5.6′ × 2.2′
via Wikipedia infobox
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Encyclopedic overview
NGC 5161 is a spiral galaxy in the constellation Centaurus. Its velocity with respect to the cosmic microwave background is 2,668±20 km/s, which corresponds to a Hubble distance of 128.4 ± 9.0 Mly (39.36 ± 2.77 Mpc). However, 28 non-redshift measurements give a much closer mean distance of 74.15 ± 2.53 Mly (22.736 ± 0.777 Mpc). It was discovered by British astronomer John Herschel on 3 June 1836.
Characteristics
Excerpted from Wikipedia’s “Q143189” article, available under the CC BY-SA 4.0 licence.