20573+4818 HDS 2987 (HD 199714)
20h 57m 16.58s +48° 17' 44.8" P.A. 3.00 sep 0.4 mag 8.47,10.70 Sp B8Ib dist. 613.5 pc (2001.24 l.y.)
Coord 2000 |
20573+4818 |
|
Discov num |
HDS2987 |
|
Comp |
|
|
Coord arcsec 2000 |
20 57 16.58 +48 17 44.8 |
|
Date first |
1991 |
|
Date last |
2009 |
|
Obs |
3 |
|
Pa first |
358 |
|
Pa last |
3.4 |
|
P.A. Now (θ) |
3.4° |
|
Sep first |
0.3 |
|
Sep last |
0.411 |
|
Sep. Now (ρ) |
0.411" |
|
Mag pri |
8.47 |
|
Mag sec |
10.70 |
|
delta mag (ΔM) |
2.23 |
|
Spectral class |
B8Ib (blue-white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
+000 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 199714 |
|
Constellation |
Cygnus |
|
SAO |
50280 |
|
HIP |
103428 |
|
Tycho2 |
3579-01034-1 |
|
Gaia DR2 |
2167043105179065600 |
|
HD |
199714 |
|
BD |
BD+47 3237 |
|
Distance |
613.5 |
|
Distance ly |
2001.24 |
|