17561+2130 STT 339 (HD 163609)
17h 56m 08.80s +21° 29' 41.9" P.A. 169.00 sep 4.2 mag 8.37,10.76 Sp G5 dist. 47.37 pc (154.52 l.y.)
| Coord 2000 |
17561+2130 |
|
Discov num |
STT 339 |
|
Comp |
|
|
Coord arcsec 2000 |
17 56 08.80 +21 29 41.9 |
|
| Date first |
1843 |
|
Date last |
2018 |
|
Obs |
47 |
|
| Pa first |
183 |
|
Pa last |
169.4 |
|
P.A. Now (θ) |
169.4° |
|
| Sep first |
2.2 |
|
Sep last |
4.21 |
|
Sep. Now (ρ) |
4.21" |
|
| Mag pri |
8.37 |
|
Mag sec |
10.76 |
|
delta mag (ΔM) |
2.39 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-016 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
+071 |
|
Sec motion dec |
+067 |
|
| Notes |
N
(See Notes) |
|
rPM=0.057 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 163609 |
|
Constellation |
Hercules |
|
SAO |
85554 |
|
HIP |
87800 |
|
| Tycho2 |
1565-04314-1 |
|
Gaia DR2 |
4576847000373649920 |
|
HD |
163609 |
|
BD |
BD+21 3253 |
|
| Distance |
47.37 |
|
Distance ly |
154.52 |
|
