23423+6431 BU 993 (V816 Cas)
23h 42m 20.93s +64° 30' 55.4" P.A. 276.00 sep 2.7 mag 6.60,10.80 Sp M2III: dist. 289.02 pc (942.78 l.y.)
| Coord 2000 |
23423+6431 |
|
Discov num |
BU 993 |
|
Comp |
|
|
Coord arcsec 2000 |
23 42 20.93 +64 30 55.4 |
|
| Date first |
1880 |
|
Date last |
2021 |
|
Obs |
13 |
|
| Pa first |
280 |
|
Pa last |
276.3 |
|
P.A. Now (θ) |
276.3° |
|
| Sep first |
2.7 |
|
Sep last |
2.722 |
|
Sep. Now (ρ) |
2.722" |
|
| Mag pri |
6.60 |
|
Mag sec |
10.80 |
|
delta mag (ΔM) |
4.2 |
|
Spectral class |
M2III: (red) |
|
| Pri motion ra |
+015 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V816 Cas |
|
Constellation |
Cassiopeia |
|
SAO |
20791 |
|
HIP |
116948 |
|
| Tycho2 |
4288-00196-1 |
|
Gaia DR2 |
2017341569086066560 |
|
HD |
222670 |
|
HR |
8989 |
|
| GC |
32927 |
|
ADS |
16940 |
|
BD |
BD+63 2038 |
|
Distance |
289.02 |
|
| Distance ly |
942.78 |
|
