18203+2104 HDS 2592 (HD 168696)
18h 20m 18.19s +21° 04' 25.0" P.A. 184.00 sep 0.2 mag 7.80,11.36 Sp B9 dist. 418.41 pc (1364.85 l.y.)
Coord 2000 |
18203+2104 |
|
Discov num |
HDS2592 |
|
Comp |
|
|
Coord arcsec 2000 |
18 20 18.19 +21 04 25.0 |
|
Date first |
1991 |
|
Date last |
2013 |
|
Obs |
5 |
|
Pa first |
185 |
|
Pa last |
184.2 |
|
P.A. Now (θ) |
184.2° |
|
Sep first |
0.4 |
|
Sep last |
0.212 |
|
Sep. Now (ρ) |
0.212" |
|
Mag pri |
7.80 |
|
Mag sec |
11.36 |
|
delta mag (ΔM) |
3.56 |
|
Spectral class |
B9 (blue-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-008 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 168696 |
|
Constellation |
Hercules |
|
SAO |
85939 |
|
HIP |
89862 |
|
Tycho2 |
1580-01706-1 |
|
Gaia DR2 |
4528770442133901824 |
|
HD |
168696 |
|
BD |
BD+21 3388 |
|
Distance |
418.41 |
|
Distance ly |
1364.85 |
|