21517+3716 COU 1641
21h 52m 04.49s +37° 14' 29.6" P.A. 309.00 sep 2.1 mag 12.00,13.30
| Coord 2000 |
21517+3716 |
|
Discov num |
COU1641 |
|
Comp |
|
|
Coord arcsec 2000 |
21 52 04.49 +37 14 29.6 |
|
| Date first |
1977 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
307 |
|
Pa last |
308.6 |
|
P.A. Now (θ) |
308.6° |
|
| Sep first |
1.4 |
|
Sep last |
2.102 |
|
Sep. Now (ρ) |
2.102" |
|
| Mag pri |
12.00 |
|
Mag sec |
13.30 |
|
delta mag (ΔM) |
1.3 |
|
Spectral class |
|
|
| Pri motion ra |
-003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2730-01176-1 |
|
Gaia DR2 |
1949874371675867008 |
|
