17556+2508 COU 503 (HD 163529)
17h 55m 36.15s +25° 07' 54.4" P.A. 118.00 sep 0.4 mag 8.50,9.53 Sp A3 dist. 340.14 pc (1109.54 l.y.)
| Coord 2000 |
17556+2508 |
|
Discov num |
COU 503 |
|
Comp |
|
|
Coord arcsec 2000 |
17 55 36.15 +25 07 54.4 |
|
| Date first |
1970 |
|
Date last |
2018 |
|
Obs |
20 |
|
| Pa first |
77 |
|
Pa last |
117.7 |
|
P.A. Now (θ) |
117.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.43 |
|
Sep. Now (ρ) |
0.43" |
|
| Mag pri |
8.50 |
|
Mag sec |
9.53 |
|
delta mag (ΔM) |
1.03 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-003 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 163529 |
|
Constellation |
Hercules |
|
SAO |
85548 |
|
HIP |
87759 |
|
| Tycho2 |
2094-00886-1 |
|
Gaia DR2 |
4581186532241628800 |
|
HD |
163529 |
|
BD |
BD+25 3381 |
|
| Distance |
340.14 |
|
Distance ly |
1109.54 |
|
