18221+4222 RAO 390
18h 22m 08.10s +42° 22' 00.8" P.A. 234.00 sep 3.3 mag 15.20,17.20
| Coord 2000 |
18221+4222 |
|
Discov num |
RAO 390 |
|
Comp |
|
|
Coord arcsec 2000 |
18 22 08.10 +42 22 00.8 |
|
| Date first |
2016 |
|
Date last |
2016 |
|
Obs |
1 |
|
| Pa first |
234 |
|
Pa last |
234.1 |
|
P.A. Now (θ) |
234.1° |
|
| Sep first |
3.3 |
|
Sep last |
3.301 |
|
Sep. Now (ρ) |
3.301" |
|
| Mag pri |
15.20 |
|
Mag sec |
17.20 |
|
delta mag (ΔM) |
2 |
|
Spectral class |
|
|
| Pri motion ra |
-032 |
|
Sec motion ra |
|
|
| Pri motion dec |
+156 |
|
Sec motion dec |
|
|
| Notes |
R
(Red magnitudes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
