21304+4717 ES 516
21h 30m 23.17s +47° 17' 41.9" P.A. 147.00 sep 3.4 mag 9.40,11.00
| Coord 2000 |
21304+4717 |
|
Discov num |
ES 516 |
|
Comp |
|
|
Coord arcsec 2000 |
21 30 23.17 +47 17 41.9 |
|
| Date first |
1900 |
|
Date last |
2019 |
|
Obs |
8 |
|
| Pa first |
133 |
|
Pa last |
146.7 |
|
P.A. Now (θ) |
146.7° |
|
| Sep first |
3.3 |
|
Sep last |
3.36 |
|
Sep. Now (ρ) |
3.36" |
|
| Mag pri |
9.40 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
|
|
| Pri motion ra |
+011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-016 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1978289806601501952 |
|
