21143-3835 B 520 AB (HD 201991)
21h 14m 16.34s -38° 34' 40.6" P.A. 252.00 sep 0.8 mag 8.81,9.48 Sp F2 dist. 420.17 pc (1370.59 l.y.)
| Coord 2000 |
21143-3835 |
|
Discov num |
B 520 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 14 16.34 -38 34 40.6 |
|
| Date first |
1926 |
|
Date last |
2008 |
|
Obs |
13 |
|
| Pa first |
242 |
|
Pa last |
252.3 |
|
P.A. Now (θ) |
252.3° |
|
| Sep first |
0.9 |
|
Sep last |
0.812 |
|
Sep. Now (ρ) |
0.812" |
|
| Mag pri |
8.81 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
0.67 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-010 |
|
Sec motion dec |
-010 |
|
| Notes |
|
|
Nature of this double is uncertain.
21143-3835 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 201991 |
212815 |
21 14 16 -38 34 41 |
B 520 AB |
2008 |
13 |
252 |
0.8 |
8.81 |
9.48 |
0.67 |
|
<=== |
| Show |
|
212815 |
21 14 16 -38 34 41 |
HJ 5253 AC |
2015 |
13 |
183 |
10.4 |
8.81 |
9.53 |
0.72 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 201991 |
|
Constellation |
Microscopium |
|
SAO |
212815 |
|
HIP |
104835 |
|
| Tycho2 |
7966-01198-1 |
|
Gaia DR2 |
6583524543613156352 |
|
HD |
201991 |
|
CD |
CD-3914165 |
|
| Distance |
420.17 |
|
Distance ly |
1370.59 |
|
