21391-1221 B 2897 AB,C (HD 205957)
21h 39m 06.68s -12° 21' 05.1" P.A. 18.00 sep 0.8 mag 9.70,12.50 Sp F8V
| Coord 2000 |
21391-1221 |
|
Discov num |
B 2897 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
21 39 06.68 -12 21 05.1 |
|
| Date first |
1924 |
|
Date last |
1958 |
|
Obs |
4 |
|
| Pa first |
210 |
|
Pa last |
17.6 |
|
P.A. Now (θ) |
17.6° |
|
| Sep first |
1.3 |
|
Sep last |
0.78 |
|
Sep. Now (ρ) |
0.78" |
|
| Mag pri |
9.70 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
2.8 |
|
Spectral class |
F8V (yellow-white) |
|
| Pri motion ra |
-039 |
|
Sec motion ra |
|
|
| Pri motion dec |
+007 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21391-1221 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
164546 |
21 39 07 -12 21 05 |
VBS 34 AB |
2019 |
7 |
275 |
0.2 |
10.30 |
10.60 |
0.30 |
|
|
| Show |
HD 205957 |
164546 |
21 39 07 -12 21 05 |
B 2897 AB,C |
1958 |
4 |
18 |
0.8 |
9.70 |
12.50 |
2.80 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 205957 |
|
Constellation |
Capricornus |
|
SAO |
164546 |
|
Tycho2 |
5795-00473-1 |
|
| Gaia DR2 |
6844471118540050944 |
|
HD |
205957 |
|
