21395+5729 STI 2582 (HD 239729)
21h 39m 27.41s +57° 29' 00.9" P.A. 187.00 sep 20.9 mag 8.38,11.42 Sp B0V dist. 342.47 pc (1117.14 l.y.)
| Coord 2000 |
21395+5729 |
|
Discov num |
STI2582 |
|
Comp |
|
|
Coord arcsec 2000 |
21 39 27.41 +57 29 00.9 |
|
| Date first |
2000 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
187 |
|
Pa last |
187.3 |
|
P.A. Now (θ) |
187.3° |
|
| Sep first |
20.9 |
|
Sep last |
20.949 |
|
Sep. Now (ρ) |
20.949" |
|
| Mag pri |
8.38 |
|
Mag sec |
11.42 |
|
delta mag (ΔM) |
3.04 |
|
Spectral class |
B0V (blue-white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.471
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 239729 |
|
Constellation |
Cepheus |
|
SAO |
33637 |
|
HIP |
106937 |
|
| Tycho2 |
3975-00236-1 |
|
Gaia DR2 |
2178385392251185280 |
|
HD |
239729 |
|
BD |
BD+56 2620 |
|
| Distance |
342.47 |
|
Distance ly |
1117.14 |
|
