17217-4524 DON 831 (HD 156786)
17h 21m 46.07s -45° 23' 54.2" P.A. 30.00 sep 0.3 mag 10.60,11.60 Sp B9IV
| Coord 2000 |
17217-4524 |
|
Discov num |
DON 831 |
|
Comp |
|
|
Coord arcsec 2000 |
17 21 46.07 -45 23 54.2 |
|
| Date first |
1929 |
|
Date last |
1948 |
|
Obs |
2 |
|
| Pa first |
30 |
|
Pa last |
30.4 |
|
P.A. Now (θ) |
30.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.32 |
|
Sep. Now (ρ) |
0.32" |
|
| Mag pri |
10.60 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
B9IV (blue-white) |
|
| Pri motion ra |
-009 |
|
Sec motion ra |
|
|
| Pri motion dec |
-016 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 156786 |
|
Constellation |
Scorpius |
|
Tycho2 |
8341-00302-1 |
|
Gaia DR2 |
5952794611835027200 |
|
| HD |
156786 |
|
