21460+4506 HJ 1689 (HD 207181)
21h 46m 02.26s +45° 06' 21.0" P.A. 57.00 sep 9.8 mag 9.17,12.32 Sp B9 dist. 480.77 pc (1568.27 l.y.)
| Coord 2000 |
21460+4506 |
|
Discov num |
HJ 1689 |
|
Comp |
|
|
Coord arcsec 2000 |
21 46 02.26 +45 06 21.0 |
|
| Date first |
1828 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
46 |
|
Pa last |
57 |
|
P.A. Now (θ) |
57° |
|
| Sep first |
3.0 |
|
Sep last |
9.817 |
|
Sep. Now (ρ) |
9.817" |
|
| Mag pri |
9.17 |
|
Mag sec |
12.32 |
|
delta mag (ΔM) |
3.15 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-016 |
|
| Notes |
|
|
rPM=0.813
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 207181 |
|
Constellation |
Cygnus |
|
SAO |
51275 |
|
HIP |
107468 |
|
| Tycho2 |
3604-03187-1 |
|
Gaia DR2 |
1973903614191763840 |
|
HD |
207181 |
|
BD |
BD+44 3936 |
|
| Distance |
480.77 |
|
Distance ly |
1568.27 |
|
