21165+4046 ES 1690
21h 16m 26.72s +40° 46' 10.0" P.A. 101.00 sep 3.8 mag 11.00,12.50
Coord 2000 |
21165+4046 |
|
Discov num |
ES 1690 |
|
Comp |
|
|
Coord arcsec 2000 |
21 16 26.72 +40 46 10.0 |
|
Date first |
1895 |
|
Date last |
2015 |
|
Obs |
7 |
|
Pa first |
105 |
|
Pa last |
101.2 |
|
P.A. Now (θ) |
101.2° |
|
Sep first |
3.8 |
|
Sep last |
3.825 |
|
Sep. Now (ρ) |
3.825" |
|
Mag pri |
11.00 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
Pri motion ra |
-003 |
|
Sec motion ra |
|
|
Pri motion dec |
+001 |
|
Sec motion dec |
|
|
Notes |
R
(Red magnitudes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3173-00851-1 |
|
Gaia DR2 |
1968667086985328640 |
|