17285+7430 A 1155 (HD 159754)
17h 28m 29.05s +74° 30' 00.4" P.A. 287.00 sep 0.6 mag 8.50,10.55 Sp F2V dist. 169.78 pc (553.82 l.y.)
Coord 2000 |
17285+7430 |
|
Discov num |
A 1155 |
|
Comp |
|
|
Coord arcsec 2000 |
17 28 29.05 +74 30 00.4 |
|
Date first |
1915 |
|
Date last |
2011 |
|
Obs |
17 |
|
Pa first |
318 |
|
Pa last |
286.7 |
|
P.A. Now (θ) |
286.7° |
|
Sep first |
0.4 |
|
Sep last |
0.569 |
|
Sep. Now (ρ) |
0.569" |
|
Mag pri |
8.50 |
|
Mag sec |
10.55 |
|
delta mag (ΔM) |
2.05 |
|
Spectral class |
F2V (yellow-white) |
|
Pri motion ra |
+012 |
|
Sec motion ra |
|
|
Pri motion dec |
+028 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 159754 |
|
Constellation |
Draco |
|
SAO |
8816 |
|
HIP |
85509 |
|
Tycho2 |
4427-00569-1 |
|
Gaia DR2 |
1655713981417427968 |
|
HD |
159754 |
|
BD |
BD+74 713 |
|
Distance |
169.78 |
|
Distance ly |
553.82 |
|