21327+4829 HJ 1657 AB
21h 32m 43.15s +48° 28' 59.4" P.A. 16.00 sep 23.1 mag 9.03,12.10 Sp A2V
| Coord 2000 |
21327+4829 |
|
Discov num |
HJ 1657 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 32 43.15 +48 28 59.4 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
10 |
|
Pa last |
16.2 |
|
P.A. Now (θ) |
16.2° |
|
| Sep first |
10.0 |
|
Sep last |
23.123 |
|
Sep. Now (ρ) |
23.123" |
|
| Mag pri |
9.03 |
|
Mag sec |
12.10 |
|
delta mag (ΔM) |
3.07 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-009 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-020 |
|
Sec motion dec |
-006 |
|
| Notes |
W
|
|
rPM=0.678
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3594-00370-1 |
|
