20231+4037 TDT 2228 (HD 229177)
20h 23m 04.98s +40° 36' 36.0" P.A. 242.00 sep 0.4 mag 9.41,10.39 Sp B9
| Coord 2000 |
20231+4037 |
|
Discov num |
TDT2228 |
|
Comp |
|
|
Coord arcsec 2000 |
20 23 04.98 +40 36 36.0 |
|
| Date first |
1991 |
|
Date last |
2011 |
|
Obs |
2 |
|
| Pa first |
251 |
|
Pa last |
241.7 |
|
P.A. Now (θ) |
241.7° |
|
| Sep first |
0.4 |
|
Sep last |
0.38 |
|
Sep. Now (ρ) |
0.38" |
|
| Mag pri |
9.41 |
|
Mag sec |
10.39 |
|
delta mag (ΔM) |
0.98 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+003 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 229177 |
|
Constellation |
Cygnus |
|
SAO |
49554 |
|
Tycho2 |
3156-00936-1 |
|
| Gaia DR2 |
2067559567962683648 |
|
HD |
229177 |
|
DM |
BD+40 4143 |
|
