18211+3917 COU 1459 AB
18h 21m 07.97s +39° 16' 24.7" P.A. 92.00 sep 1.4 mag 11.00,11.50
| Coord 2000 |
18211+3917 |
|
Discov num |
COU1459 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 21 07.97 +39 16 24.7 |
|
| Date first |
1976 |
|
Date last |
2017 |
|
Obs |
4 |
|
| Pa first |
94 |
|
Pa last |
91.6 |
|
P.A. Now (θ) |
91.6° |
|
| Sep first |
1.4 |
|
Sep last |
1.4 |
|
Sep. Now (ρ) |
1.4" |
|
| Mag pri |
11.00 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
|
|
| Pri motion ra |
-020 |
|
Sec motion ra |
|
|
| Pri motion dec |
+046 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
18211+3917 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 21 08 +39 16 25 |
COU 1459 Aa,Ab |
2015 |
2 |
158 |
0.5 |
11.00 |
11.20 |
0.20 |
|
|
| Show |
|
|
18 21 08 +39 16 25 |
COU 1459 AB |
2017 |
4 |
92 |
1.4 |
11.00 |
11.50 |
0.50 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
