21218+3230 HLM 40
21h 20m 56.20s +32° 29' 31.5" P.A. 23.00 sep 15.5 mag 11.80,12.60
| Coord 2000 |
21218+3230 |
|
Discov num |
HLM 40 |
|
Comp |
|
|
Coord arcsec 2000 |
21 20 56.20 +32 29 31.5 |
|
| Date first |
1925 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
18 |
|
Pa last |
22.9 |
|
P.A. Now (θ) |
22.9° |
|
| Sep first |
13.5 |
|
Sep last |
15.529 |
|
Sep. Now (ρ) |
15.529" |
|
| Mag pri |
11.80 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
|
|
| Pri motion ra |
-023 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
-019 |
|
Sec motion dec |
-002 |
|
| Notes |
N
(See Notes) |
|
rPM=0.783
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2707-02258-1 |
|
Gaia DR2 |
1854534172240054656 |
|
