21044+4631 HDS 3001
21h 04m 21.21s +46° 31' 05.4" P.A. 94.00 sep 18.4 mag 9.33,10.74 Sp B8 dist. 108.34 pc (353.41 l.y.)
| Coord 2000 |
21044+4631 |
|
Discov num |
HDS3001 |
|
Comp |
|
|
Coord arcsec 2000 |
21 04 21.21 +46 31 05.4 |
|
| Date first |
1892 |
|
Date last |
2020 |
|
Obs |
16 |
|
| Pa first |
95 |
|
Pa last |
94 |
|
P.A. Now (θ) |
94° |
|
| Sep first |
17.9 |
|
Sep last |
18.43 |
|
Sep. Now (ρ) |
18.43" |
|
| Mag pri |
9.33 |
|
Mag sec |
10.74 |
|
delta mag (ΔM) |
1.41 |
|
Spectral class |
B8 (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.566
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
104013 |
|
Tycho2 |
3588-09299-1 |
|
Gaia DR2 |
2163612525828400128 |
|
| BD |
BD+45 3388 |
|
Distance |
108.34 |
|
Distance ly |
353.41 |
|
