21308+3440 SEI 1522
21h 30m 49.43s +34° 39' 17.3" P.A. 180.00 sep 23.7 mag 11.08,11.34
| Coord 2000 |
21308+3440 |
|
Discov num |
SEI1522 |
|
Comp |
|
|
Coord arcsec 2000 |
21 30 49.43 +34 39 17.3 |
|
| Date first |
1894 |
|
Date last |
2015 |
|
Obs |
14 |
|
| Pa first |
178 |
|
Pa last |
179.5 |
|
P.A. Now (θ) |
179.5° |
|
| Sep first |
22.8 |
|
Sep last |
23.656 |
|
Sep. Now (ρ) |
23.656" |
|
| Mag pri |
11.08 |
|
Mag sec |
11.34 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
|
|
| Pri motion ra |
-001 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-011 |
|
| Notes |
|
|
rPM=0.704
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2712-01437-1 |
|
Gaia DR2 |
1950473193200024960 |
|
