3C 273 [SEP] constellation
3C 273
3C 273 is a quasar located in the constellation Virgo. It was the first quasar ever to be identified.
It is the optically brightest quasar in the sky (m ~12.9), and one of the closest with a redshift, "z", of 0.158. A luminosity distance of D = may be calculated from "z". It is also one of the most luminous quasars known, with an absolute magnitude of −26.7, meaning that if it were only as distant as Pollux (~10 parsecs
3C 273 Redshift Measurement
- NightSkyInfo.com – 3C 273
- SKY-MAP.ORG SDSS image of 3C 273
- The Quasar 3C 273: Spring 2005 – Variable Star Of The Season AAVSO