20566+4455 TRN 30
20h 56m 34.78s +44° 55' 29.0" P.A. 30.00 sep 3.8 mag 5.97,16.00 Sp O6.5V+B1/ dist. 1666.67 pc (5436.68 l.y.)
| Coord 2000 |
20566+4455 |
|
Discov num |
TRN 30 |
|
Comp |
|
|
Coord arcsec 2000 |
20 56 34.78 +44 55 29.0 |
|
| Date first |
2001 |
|
Date last |
2001 |
|
Obs |
2 |
|
| Pa first |
205 |
|
Pa last |
30 |
|
P.A. Now (θ) |
30° |
|
| Sep first |
3.8 |
|
Sep last |
3.76 |
|
Sep. Now (ρ) |
3.76" |
|
| Mag pri |
5.97 |
|
Mag sec |
16.00 |
|
delta mag (ΔM) |
10.03 |
|
Spectral class |
O6.5V+B1/ (blue/blue-white) |
|
| Pri motion ra |
-000 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
50263 |
|
HIP |
103371 |
|
Tycho2 |
3179-00457-1 |
|
| Gaia DR2 |
2163075895429683072 |
|
HD |
199579 |
|
HR |
8023 |
|
GC |
29241 |
|
| BD |
BD+44 3639 |
|
Distance |
1666.67 |
|
Distance ly |
5436.68 |
|
