21538+4041 COU 1980 (HD 208221)
21h 53m 49.58s +40° 40' 38.4" P.A. 247.00 sep 1.5 mag 9.30,12.28 Sp A2 dist. 363.64 pc (1186.19 l.y.)
| Coord 2000 |
21538+4041 |
|
Discov num |
COU1980 |
|
Comp |
|
|
Coord arcsec 2000 |
21 53 49.58 +40 40 38.4 |
|
| Date first |
1980 |
|
Date last |
2016 |
|
Obs |
6 |
|
| Pa first |
252 |
|
Pa last |
247.2 |
|
P.A. Now (θ) |
247.2° |
|
| Sep first |
1.3 |
|
Sep last |
1.516 |
|
Sep. Now (ρ) |
1.516" |
|
| Mag pri |
9.30 |
|
Mag sec |
12.28 |
|
delta mag (ΔM) |
2.98 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.316
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 208221 |
|
Constellation |
Cygnus |
|
SAO |
51409 |
|
HIP |
108075 |
|
| Tycho2 |
3189-01286-1 |
|
Gaia DR2 |
1959467919866413440 |
|
HD |
208221 |
|
BD |
BD+40 4664 |
|
| Distance |
363.64 |
|
Distance ly |
1186.19 |
|
