17385+4013 OSO 81 AC
17h 38m 27.80s +40° 13' 28.7" P.A. 139.00 sep 24.3 mag 13.52,17.90
| Coord 2000 |
17385+4013 |
|
Discov num |
OSO 81 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 38 27.80 +40 13 28.7 |
|
| Date first |
1995 |
|
Date last |
1999 |
|
Obs |
2 |
|
| Pa first |
142 |
|
Pa last |
139.1 |
|
P.A. Now (θ) |
139.1° |
|
| Sep first |
24.8 |
|
Sep last |
24.34 |
|
Sep. Now (ρ) |
24.34" |
|
| Mag pri |
13.52 |
|
Mag sec |
17.90 |
|
delta mag (ΔM) |
4.38 |
|
Spectral class |
|
|
| Pri motion ra |
-145 |
|
Sec motion ra |
|
|
| Pri motion dec |
-225 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
17385+4013 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 38 28 +40 13 29 |
OSO 81 AB |
1995 |
1 |
124 |
22.6 |
13.52 |
19.20 |
5.68 |
|
|
| Show |
|
|
17 38 28 +40 13 29 |
OSO 81 AC |
1999 |
2 |
139 |
24.3 |
13.52 |
17.90 |
4.38 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
1343993677505727616 |
|
