21100+4901 HDS 3016
21h 09m 59.12s +49° 01' 08.5" P.A. 25.00 sep 0.3 mag 9.33,10.72 Sp B5 dist. 3703.7 pc (12081.47 l.y.)
| Coord 2000 |
21100+4901 |
|
Discov num |
HDS3016 |
|
Comp |
|
|
Coord arcsec 2000 |
21 09 59.12 +49 01 08.5 |
|
| Date first |
1991 |
|
Date last |
2014 |
|
Obs |
6 |
|
| Pa first |
27 |
|
Pa last |
24.5 |
|
P.A. Now (θ) |
24.5° |
|
| Sep first |
0.3 |
|
Sep last |
0.316 |
|
Sep. Now (ρ) |
0.316" |
|
| Mag pri |
9.33 |
|
Mag sec |
10.72 |
|
delta mag (ΔM) |
1.39 |
|
Spectral class |
B5 (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-004 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
104484 |
|
Tycho2 |
3596-01036-1 |
|
Gaia DR2 |
2165950804785456896 |
|
| BD |
BD+48 3298 |
|
Distance |
3703.7 |
|
Distance ly |
12081.47 |
|
