21442+5513 A 1896
21h 44m 13.02s +55° 12' 37.8" P.A. 174.00 sep 3.8 mag 9.35,12.60 Sp B3 dist. 257.07 pc (838.56 l.y.)
| Coord 2000 |
21442+5513 |
|
Discov num |
A 1896 |
|
Comp |
|
|
Coord arcsec 2000 |
21 44 13.02 +55 12 37.8 |
|
| Date first |
1908 |
|
Date last |
2016 |
|
Obs |
8 |
|
| Pa first |
171 |
|
Pa last |
174.3 |
|
P.A. Now (θ) |
174.3° |
|
| Sep first |
3.5 |
|
Sep last |
3.758 |
|
Sep. Now (ρ) |
3.758" |
|
| Mag pri |
9.35 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
3.25 |
|
Spectral class |
B3 (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=1.054
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
33706 |
|
HIP |
107316 |
|
Tycho2 |
3971-02065-1 |
|
| Gaia DR2 |
2174773324754423808 |
|
HD |
235602 |
|
BD |
BD+54 2611 |
|
Distance |
257.07 |
|
| Distance ly |
838.56 |
|
