18341+1742 J 2915 AC
18h 34m 13.98s +17° 40' 43.5" P.A. 84.00 sep 7.1 mag 13.00,13.80
| Coord 2000 |
18341+1742 |
|
Discov num |
J 2915 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 34 13.98 +17 40 43.5 |
|
| Date first |
1944 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
65 |
|
Pa last |
84.3 |
|
P.A. Now (θ) |
84.3° |
|
| Sep first |
8.0 |
|
Sep last |
7.071 |
|
Sep. Now (ρ) |
7.071" |
|
| Mag pri |
13.00 |
|
Mag sec |
13.80 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
|
|
| Pri motion ra |
-018 |
|
Sec motion ra |
|
|
| Pri motion dec |
+020 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18341+1742 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 34 14 +17 40 44 |
J 2915 AB |
2015 |
9 |
190 |
6.1 |
13.00 |
13.00 |
0.00 |
|
|
| Show |
|
|
18 34 14 +17 40 44 |
J 2915 AC |
2015 |
9 |
84 |
7.1 |
13.00 |
13.80 |
0.80 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4523926784174730112 |
|
