20024+2105 HDS 2855 (BF Sge)
20h 02m 23.08s +21° 05' 24.9" P.A. 146.00 sep 0.1 mag 9.86,10.19 Sp C5II dist. 757.58 pc (2471.23 l.y.)
Coord 2000 |
20024+2105 |
|
Discov num |
HDS2855 |
|
Comp |
|
|
Coord arcsec 2000 |
20 02 23.08 +21 05 24.9 |
|
Date first |
1991 |
|
Date last |
2012 |
|
Obs |
2 |
|
Pa first |
246 |
|
Pa last |
145.7 |
|
P.A. Now (θ) |
145.7° |
|
Sep first |
0.2 |
|
Sep last |
0.14 |
|
Sep. Now (ρ) |
0.14" |
|
Mag pri |
9.86 |
|
Mag sec |
10.19 |
|
delta mag (ΔM) |
0.33 |
|
Spectral class |
C5II (red carbon star) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-006 |
|
Sec motion dec |
|
|
Notes |
X
(Dubious double) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Var name |
BF Sge |
|
Constellation |
Sagitta |
|
HIP |
98662 |
|
Tycho2 |
1629-00945-1 |
|
Gaia DR2 |
1823887519027667328 |
|
HD |
190048 |
|
BD |
BD+20 4390 |
|
Distance |
757.58 |
|
Distance ly |
2471.23 |
|