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RX J2129.7+0005 BCG
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RX J2129.7+0005 BCG (short for RX J2129.7+0005 Brightest Cluster Galaxy) also known as PGC 1156801, is a massive elliptical galaxy residing as the brightest cluster galaxy (BCG) of the RX J2129.7+0005 galaxy cluster.[1] It is located in the constellation of Aquarius and a redshift of 0.23, meaning the galaxy is located 3.1 billion light-years from Earth.[2]
Quick Facts Observation data (J2000.0 epoch), Constellation ...
RX J2129.7+0005 BCG | |
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![]() RX J2129.7+0005 BCG, as seen by DESI Legacy Surveys | |
Observation data (J2000.0 epoch) | |
Constellation | Aquarius |
Right ascension | 21h 29m 39.958s |
Declination | +00d 05m 21.14s |
Redshift | 0.233926 |
Heliocentric radial velocity | 70,129 km/s |
Distance | 3.119 Gly (956.3 Mpc) |
Group or cluster | RX J2129.7+0005 |
Apparent magnitude (V) | 0.111 |
Apparent magnitude (B) | 0.146 |
Surface brightness | 18.1 |
Characteristics | |
Type | BrCLG |
Size | 515,000 ly |
Apparent size (V) | 0.32' x 0.16' |
Notable features | brightest cluster galaxy in a gravitational lensed cluster |
Other designations | |
OGC 98, NVSS J212939+000523, PGC 1156801, 2MASS J21293997+0005213, FIRST J212939.9+000521, 2CXO J212939.9+000520 |
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