21023+4139 ROE 21
21h 02m 24.72s +41° 39' 04.3" P.A. 224.00 sep 9.1 mag 11.29,12.00
Coord 2000 |
21023+4139 |
|
Discov num |
ROE 21 |
|
Comp |
|
|
Coord arcsec 2000 |
21 02 24.72 +41 39 04.3 |
|
Date first |
1892 |
|
Date last |
2018 |
|
Obs |
12 |
|
Pa first |
223 |
|
Pa last |
223.8 |
|
P.A. Now (θ) |
223.8° |
|
Sep first |
9.2 |
|
Sep last |
9.082 |
|
Sep. Now (ρ) |
9.082" |
|
Mag pri |
11.29 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
0.71 |
|
Spectral class |
|
|
Pri motion ra |
-001 |
|
Sec motion ra |
-003 |
|
Pri motion dec |
-003 |
|
Sec motion dec |
-004 |
|
Notes |
|
|
rPM=0.447
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3176-01604-1 |
|
Gaia DR2 |
1969513156875847552 |
|