17551+3745 OSO 89 AC
17h 55m 06.31s +37° 44' 48.0" P.A. 74.00 sep 21.3 mag 11.99,17.80 Sp sd?F8:
| Coord 2000 |
17551+3745 |
|
Discov num |
OSO 89 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 55 06.31 +37 44 48.0 |
|
| Date first |
1995 |
|
Date last |
2014 |
|
Obs |
8 |
|
| Pa first |
71 |
|
Pa last |
74.3 |
|
P.A. Now (θ) |
74.3° |
|
| Sep first |
18.7 |
|
Sep last |
21.343 |
|
Sep. Now (ρ) |
21.343" |
|
| Mag pri |
11.99 |
|
Mag sec |
17.80 |
|
delta mag (ΔM) |
5.81 |
|
Spectral class |
sd?F8: |
|
| Pri motion ra |
-188 |
|
Sec motion ra |
|
|
| Pri motion dec |
-384 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
17551+3745 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 55 06 +37 44 48 |
OSO 89 AB |
2014 |
8 |
117 |
20.7 |
11.99 |
17.70 |
5.71 |
|
|
| Show |
|
|
17 55 06 +37 44 48 |
OSO 89 AC |
2014 |
8 |
74 |
21.3 |
11.99 |
17.80 |
5.81 |
|
<=== |
| Show |
|
|
17 55 06 +37 44 48 |
OSO 89 AD |
1995 |
1 |
26 |
23.8 |
11.99 |
19.30 |
7.31 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
3089-02338-1 |
|
Gaia DR2 |
4610612899373868160 |
|
