21165+3959 SEI 1484
21h 16m 30.17s +39° 59' 50.6" P.A. 7.00 sep 4.2 mag 10.80,12.30
| Coord 2000 |
21165+3959 |
|
Discov num |
SEI1484 |
|
Comp |
|
|
Coord arcsec 2000 |
21 16 30.17 +39 59 50.6 |
|
| Date first |
1895 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
4 |
|
Pa last |
6.8 |
|
P.A. Now (θ) |
6.8° |
|
| Sep first |
3.6 |
|
Sep last |
4.15 |
|
Sep. Now (ρ) |
4.15" |
|
| Mag pri |
10.80 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
| Pri motion ra |
-003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-010 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3173-03038-1 |
|
Gaia DR2 |
1965254305972856704 |
|
