18385-4247 DON 915 (HD 171758)
18h 38m 31.42s -42° 46' 36.6" P.A. 211.00 sep 2.5 mag 10.39,12.30 Sp A7V
| Coord 2000 |
18385-4247 |
|
Discov num |
DON 915 |
|
Comp |
|
|
Coord arcsec 2000 |
18 38 31.42 -42 46 36.6 |
|
| Date first |
1931 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
213 |
|
Pa last |
210.6 |
|
P.A. Now (θ) |
210.6° |
|
| Sep first |
2.2 |
|
Sep last |
2.468 |
|
Sep. Now (ρ) |
2.468" |
|
| Mag pri |
10.39 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
1.91 |
|
Spectral class |
A7V (white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-010 |
|
Sec motion dec |
|
|
| Notes |
S
(Parallax indidates non-physical) |
|
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 171758 |
|
Constellation |
Corona Austrina |
|
Tycho2 |
7910-01145-1 |
|
Gaia DR2 |
6722224568209456128 |
|
| HD |
171758 |
|
