21278+6649 DCH 115 (7 Cep)
21h 27m 46.14s +66° 48' 32.7" P.A. 321.00 sep 0.6 mag 5.60,9.20 Sp B7V dist. 246.91 pc (805.42 l.y.)
| Coord 2000 |
21278+6649 |
|
Discov num |
DCH 115 |
|
Comp |
|
|
Coord arcsec 2000 |
21 27 46.14 +66 48 32.7 |
|
| Date first |
2016 |
|
Date last |
2017 |
|
Obs |
2 |
|
| Pa first |
321 |
|
Pa last |
321.1 |
|
P.A. Now (θ) |
321.1° |
|
| Sep first |
0.6 |
|
Sep last |
0.608 |
|
Sep. Now (ρ) |
0.608" |
|
| Mag pri |
5.60 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
3.6 |
|
Spectral class |
B7V (blue-white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-020 |
|
Sec motion dec |
|
|
| Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
7 Cep |
|
Constellation |
Cepheus |
|
SAO |
19432 |
|
HIP |
105972 |
|
| Tycho2 |
4261-01792-1 |
|
HD |
204770 |
|
HR |
8227 |
|
GC |
30081 |
|
| BD |
BD+66 1405 |
|
Flamsteed |
7 Cephei |
|
Flamsteed name |
7 Cep |
|
FK5 |
3718 |
|
| Distance |
246.91 |
|
Distance ly |
805.42 |
|
