21547+4730 A 890
21h 54m 41.77s +47° 30' 03.9" P.A. 236.00 sep 1.5 mag 10.50,12.40
| Coord 2000 |
21547+4730 |
|
Discov num |
A 890 |
|
Comp |
|
|
Coord arcsec 2000 |
21 54 41.77 +47 30 03.9 |
|
| Date first |
1904 |
|
Date last |
2018 |
|
Obs |
5 |
|
| Pa first |
234 |
|
Pa last |
235.6 |
|
P.A. Now (θ) |
235.6° |
|
| Sep first |
1.1 |
|
Sep last |
1.49 |
|
Sep. Now (ρ) |
1.49" |
|
| Mag pri |
10.50 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
1.9 |
|
Spectral class |
|
|
| Pri motion ra |
+011 |
|
Sec motion ra |
+011 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-002 |
|
| Notes |
T
(Parallax indicates physical) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3608-01982-1 |
|
