18509+2058 COU 317 AB
18h 50m 55.84s +20° 57' 51.3" P.A. 94.00 sep 1.5 mag 10.83,11.60 Sp A0
Coord 2000 |
18509+2058 |
|
Discov num |
COU 317 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 50 55.84 +20 57 51.3 |
|
Date first |
1968 |
|
Date last |
2013 |
|
Obs |
7 |
|
Pa first |
99 |
|
Pa last |
93.8 |
|
P.A. Now (θ) |
93.8° |
|
Sep first |
1.2 |
|
Sep last |
1.513 |
|
Sep. Now (ρ) |
1.513" |
|
Mag pri |
10.83 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
0.77 |
|
Spectral class |
A0 (white) |
|
Pri motion ra |
-005 |
|
Sec motion ra |
|
|
Pri motion dec |
-010 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
18509+2058 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
18 50 56 +20 57 51 |
COU 317 AB |
2013 |
7 |
94 |
1.5 |
10.83 |
11.60 |
0.77 |
|
<=== |
Show |
|
|
18 50 56 +20 57 51 |
COU 317 AC |
2015 |
11 |
2 |
17.3 |
10.83 |
10.88 |
0.05 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
Gaia DR2 |
4531188508725136512 |
|