17178+2844 S 686 (HD 156680)
17h 17m 48.11s +28° 44' 00.4" P.A. 4.00 sep 50.0 mag 8.17,9.30 Sp A2 dist. 258.4 pc (842.9 l.y.)
Coord 2000 |
17178+2844 |
|
Discov num |
S 686 |
|
Comp |
|
|
Coord arcsec 2000 |
17 17 48.11 +28 44 00.4 |
|
Date first |
1825 |
|
Date last |
2015 |
|
Obs |
27 |
|
Pa first |
4 |
|
Pa last |
4 |
|
P.A. Now (θ) |
4° |
|
Sep first |
55.0 |
|
Sep last |
50.009 |
|
Sep. Now (ρ) |
50.009" |
|
Mag pri |
8.17 |
|
Mag sec |
9.30 |
|
delta mag (ΔM) |
1.13 |
|
Spectral class |
A2 (white) |
|
Pri motion ra |
-002 |
|
Sec motion ra |
+001 |
|
Pri motion dec |
-005 |
|
Sec motion dec |
-031 |
|
Notes |
N
(See Notes) |
|
rPM=0.844
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 156680 |
|
Constellation |
Hercules |
|
SAO |
84986 |
|
HIP |
84614 |
|
Tycho2 |
2073-00483-1 |
|
Gaia DR2 |
4575342215624789120 |
|
HD |
156680 |
|
GC |
23370 |
|
BD |
BD+28 2713 |
|
Distance |
258.4 |
|
Distance ly |
842.9 |
|