19571+4939 HDS 2839 (HD 189313)
19h 57m 06.78s +49° 39' 03.7" P.A. 80.00 sep 0.6 mag 8.57,11.40 Sp A0 dist. 231.48 pc (755.09 l.y.)
| Coord 2000 |
19571+4939 |
|
Discov num |
HDS2839 |
|
Comp |
|
|
Coord arcsec 2000 |
19 57 06.78 +49 39 03.7 |
|
| Date first |
1991 |
|
Date last |
2008 |
|
Obs |
2 |
|
| Pa first |
83 |
|
Pa last |
80.3 |
|
P.A. Now (θ) |
80.3° |
|
| Sep first |
0.6 |
|
Sep last |
0.591 |
|
Sep. Now (ρ) |
0.591" |
|
| Mag pri |
8.57 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
2.83 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-010 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189313 |
|
Constellation |
Cygnus |
|
SAO |
49018 |
|
HIP |
98177 |
|
| Tycho2 |
3566-01374-1 |
|
Gaia DR2 |
2087053698665553536 |
|
HD |
189313 |
|
BD |
BD+49 3142 |
|
| Distance |
231.48 |
|
Distance ly |
755.09 |
|
