21509+4419 HJ 1700
21h 50m 48.78s +44° 18' 22.0" P.A. 197.00 sep 9.7 mag 11.27,11.90
| Coord 2000 |
21509+4419 |
|
Discov num |
HJ 1700 |
|
Comp |
|
|
Coord arcsec 2000 |
21 50 48.78 +44 18 22.0 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
196 |
|
Pa last |
197.2 |
|
P.A. Now (θ) |
197.2° |
|
| Sep first |
3.0 |
|
Sep last |
9.728 |
|
Sep. Now (ρ) |
9.728" |
|
| Mag pri |
11.27 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
0.63 |
|
Spectral class |
|
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
+002 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=0.354
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3197-01659-1 |
|
Gaia DR2 |
1973235660869777664 |
|
