00220+4213 HJ 1021
00h 21m 57.78s +42° 12' 34.8" P.A. 246.00 sep 6.2 mag 9.68,10.10 Sp A2
| Coord 2000 |
00220+4213 |
|
Discov num |
HJ 1021 |
|
Comp |
|
|
Coord arcsec 2000 |
00 21 57.78 +42 12 34.8 |
|
| Date first |
1828 |
|
Date last |
2017 |
|
Obs |
18 |
|
| Pa first |
247 |
|
Pa last |
245.6 |
|
P.A. Now (θ) |
245.6° |
|
| Sep first |
4.0 |
|
Sep last |
6.16 |
|
Sep. Now (ρ) |
6.16" |
|
| Mag pri |
9.68 |
|
Mag sec |
10.10 |
|
delta mag (ΔM) |
0.42 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+009 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.277 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Andromeda |
|
Tycho2 |
2791-02276-1 |
|
Gaia DR2 |
385071683834444672 |
|
