Abell 1991
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| Abell 1991 | |
|---|---|
| Observation data (Epoch J2000) | |
| Constellation(s) | Boötes |
| Right ascension | 14h 54m 30.2s[1] |
| Declination | +18° 37′ 51″[1] |
| Richness class | 1 [2] |
| Bautz–Morgan classification | I [2] |
| Redshift | 0.05870 (17 598)[1] |
| Distance | 249 Mpc (812 Mly) h−1 0.705 [1] |
| ICM temperature | 2.61 keV[3] |
| Binding mass | 1.23×1014[3] M☉ |
| X-ray flux | (9.40 ± 16.7%)×10−12 erg s−1 cm−2 (0.1–2.4 keV)[1] |
Abell 1991 is a galaxy cluster in the Abell catalogue.
