18106-7511 HJ 4999 (HD 164643)
18h 10m 33.96s -75° 11' 17.1" P.A. 172.00 sep 13.1 mag 7.68,8.61 Sp B9V+A0/1 dist. 240.96 pc (786.01 l.y.)
Coord 2000 |
18106-7511 |
|
Discov num |
HJ 4999 |
|
Comp |
|
|
Coord arcsec 2000 |
18 10 33.96 -75 11 17.1 |
|
Date first |
1835 |
|
Date last |
2015 |
|
Obs |
20 |
|
Pa first |
174 |
|
Pa last |
171.6 |
|
P.A. Now (θ) |
171.6° |
|
Sep first |
13.0 |
|
Sep last |
13.12 |
|
Sep. Now (ρ) |
13.12" |
|
Mag pri |
7.68 |
|
Mag sec |
8.61 |
|
delta mag (ΔM) |
0.93 |
|
Spectral class |
B9V+A0/1 (blue-white/white) |
|
Pri motion ra |
+010 |
|
Sec motion ra |
+007 |
|
Pri motion dec |
-010 |
|
Sec motion dec |
-022 |
|
Notes |
Y
(Parallax indicates components are non-physical) |
|
rPM=0.536
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 164643 |
|
Constellation |
Apus |
|
SAO |
257566 |
|
HIP |
89050 |
|
Tycho2 |
9445-02573-1 |
|
Gaia DR2 |
6414640828898656640 |
|
HD |
164643 |
|
GC |
24666 |
|
CP |
CP-75 1409 |
|
Distance |
240.96 |
|
Distance ly |
786.01 |
|