18359-4426 HDS 2638 (HD 171256)
18h 35m 54.42s -44° 25' 44.7" P.A. 21.00 sep 7.3 mag 8.89,11.76 Sp B9IV/V dist. 1111.11 pc (3624.44 l.y.)
| Coord 2000 |
18359-4426 |
|
Discov num |
HDS2638 |
|
Comp |
|
|
Coord arcsec 2000 |
18 35 54.42 -44 25 44.7 |
|
| Date first |
1905 |
|
Date last |
2010 |
|
Obs |
7 |
|
| Pa first |
28 |
|
Pa last |
20.5 |
|
P.A. Now (θ) |
20.5° |
|
| Sep first |
10.2 |
|
Sep last |
7.26 |
|
Sep. Now (ρ) |
7.26" |
|
| Mag pri |
8.89 |
|
Mag sec |
11.76 |
|
delta mag (ΔM) |
2.87 |
|
Spectral class |
B9IV/V (blue-white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
-012 |
|
| Notes |
|
|
rPM=0.184 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 171256 |
|
Constellation |
Corona Austrina |
|
SAO |
229134 |
|
HIP |
91162 |
|
| Tycho2 |
7914-01215-1 |
|
Gaia DR2 |
6709875712599915648 |
|
HD |
171256 |
|
GC |
25375 |
|
| CD |
CD-4412727 |
|
CP |
CP-44 9223 |
|
Distance |
1111.11 |
|
Distance ly |
3624.44 |
|
