21238+4926 HJ 1643
21h 23m 46.82s +49° 25' 49.8" P.A. 23.00 sep 27.7 mag 9.45,11.70 Sp F5
| Coord 2000 |
21238+4926 |
|
Discov num |
HJ 1643 |
|
Comp |
|
|
Coord arcsec 2000 |
21 23 46.82 +49 25 49.8 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
24 |
|
Pa last |
22.9 |
|
P.A. Now (θ) |
22.9° |
|
| Sep first |
15.0 |
|
Sep last |
27.667 |
|
Sep. Now (ρ) |
27.667" |
|
| Mag pri |
9.45 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
2.25 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-006 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
-025 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=1.084
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3598-01224-1 |
|
Gaia DR2 |
2171033473389865088 |
|
