H1821+643
Quasar in the constellation Draco / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about H1821+643?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
H1821+643 is an extraordinarily luminous, radio-quiet quasar in the constellation of Draco. [1] The associated Active Galactic Nucleus (AGN) is situated in the Brightest Central Galaxy (BCG) of a massive (), strong cooling flow cluster, CL 1821+64.[2] Russel et al (2010) spatially isolated its X-ray signal from the surrounding cluster in Chandra X-ray observatory observations and computed from the observed X-ray luminosity. [2]
Quick Facts Observation data (Epoch J2000.0), Constellation ...
H1821+643 | |
---|---|
Observation data (Epoch J2000.0) | |
Constellation | Draco |
Right ascension | 18h 21m 57.2365s |
Declination | +64° 20′ 36.226″ |
Redshift | 0.2970 |
Distance | 3.4 gigalight-years (1.0 Gpc) |
Type | Quasar |
Apparent magnitude (V) | 14.24 |
See also: Quasar, List of quasars |
Close