21171+4312 A 401 (HD 202810)
21h 17m 04.11s +43° 11' 36.9" P.A. 318.00 sep 0.4 mag 8.93,10.12 Sp A3 dist. 456.62 pc (1489.49 l.y.)
| Coord 2000 |
21171+4312 |
|
Discov num |
A 401 |
|
Comp |
|
|
Coord arcsec 2000 |
21 17 04.11 +43 11 36.9 |
|
| Date first |
1902 |
|
Date last |
2011 |
|
Obs |
19 |
|
| Pa first |
331 |
|
Pa last |
318 |
|
P.A. Now (θ) |
318° |
|
| Sep first |
0.4 |
|
Sep last |
0.41 |
|
Sep. Now (ρ) |
0.41" |
|
| Mag pri |
8.93 |
|
Mag sec |
10.12 |
|
delta mag (ΔM) |
1.19 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 202810 |
|
Constellation |
Cygnus |
|
SAO |
50664 |
|
HIP |
105068 |
|
| Tycho2 |
3181-02838-1 |
|
HD |
202810 |
|
BD |
BD+42 4045 |
|
Distance |
456.62 |
|
| Distance ly |
1489.49 |
|
