18395-2101 RST 5121 AB
18h 39m 29.07s -21° 01' 15.9" P.A. 21.00 sep 4.2 mag 9.62,15.90 Sp A0V
| Coord 2000 |
18395-2101 |
|
Discov num |
RST5121 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 39 29.07 -21 01 15.9 |
|
| Date first |
1941 |
|
Date last |
2015 |
|
Obs |
2 |
|
| Pa first |
21 |
|
Pa last |
21.3 |
|
P.A. Now (θ) |
21.3° |
|
| Sep first |
3.8 |
|
Sep last |
4.176 |
|
Sep. Now (ρ) |
4.176" |
|
| Mag pri |
9.62 |
|
Mag sec |
15.90 |
|
delta mag (ΔM) |
6.28 |
|
Spectral class |
A0V (white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18395-2101 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
187097 |
18 39 29 -21 01 16 |
RST 5121 AB |
2015 |
2 |
21 |
4.2 |
9.62 |
15.90 |
6.28 |
|
<=== |
| Show |
HD 172157 |
187097 |
18 39 29 -21 01 16 |
HJ 2833 AC |
2015 |
11 |
314 |
21.8 |
9.62 |
10.56 |
0.94 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
SAO |
187097 |
|
Tycho2 |
6279-01109-1 |
|
Gaia DR2 |
4079689692520011392 |
|
| HD |
172157 |
|
