20487-4359 DON 993 AB
20h 48m 44.12s -43° 58' 58.4" P.A. 332.00 sep 12.2 mag 7.71,15.00 Sp F3V
| Coord 2000 |
20487-4359 |
|
Discov num |
DON 993 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 48 44.12 -43 58 58.4 |
|
| Date first |
1932 |
|
Date last |
2016 |
|
Obs |
7 |
|
| Pa first |
330 |
|
Pa last |
331.9 |
|
P.A. Now (θ) |
331.9° |
|
| Sep first |
11.6 |
|
Sep last |
12.189 |
|
Sep. Now (ρ) |
12.189" |
|
| Mag pri |
7.71 |
|
Mag sec |
15.00 |
|
delta mag (ΔM) |
7.29 |
|
Spectral class |
F3V (yellow-white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
|
|
| Pri motion dec |
+022 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20487-4359 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
230382 |
20 48 44 -43 58 58 |
DON 993 AB |
2016 |
7 |
332 |
12.2 |
7.71 |
15.00 |
7.29 |
|
<=== |
| Show |
|
230382 |
20 48 44 -43 58 58 |
HJ 5222 AC |
2015 |
7 |
271 |
28.6 |
7.71 |
12.57 |
4.86 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Microscopium |
|
SAO |
230382 |
|
Tycho2 |
7975-01337-1 |
|
Gaia DR2 |
6676695234806426752 |
|
| HD |
197971 |
|
GC |
28990 |
|
