21450+5554 HDS 3097 (HD 207117)
21h 45m 00.40s +55° 53' 38.0" P.A. 214.00 sep 0.6 mag 8.93,11.33 Sp G5 dist. 343.64 pc (1120.95 l.y.)
| Coord 2000 |
21450+5554 |
|
Discov num |
HDS3097 |
|
Comp |
|
|
Coord arcsec 2000 |
21 45 00.40 +55 53 38.0 |
|
| Date first |
1991 |
|
Date last |
2008 |
|
Obs |
3 |
|
| Pa first |
214 |
|
Pa last |
214.1 |
|
P.A. Now (θ) |
214.1° |
|
| Sep first |
0.6 |
|
Sep last |
0.612 |
|
Sep. Now (ρ) |
0.612" |
|
| Mag pri |
8.93 |
|
Mag sec |
11.33 |
|
delta mag (ΔM) |
2.4 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+025 |
|
Sec motion ra |
|
|
| Pri motion dec |
+007 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 207117 |
|
Constellation |
Cepheus |
|
SAO |
33720 |
|
HIP |
107383 |
|
| Tycho2 |
3971-00031-1 |
|
Gaia DR2 |
2175018790713533184 |
|
HD |
207117 |
|
BD |
BD+55 2624 |
|
| Distance |
343.64 |
|
Distance ly |
1120.95 |
|
