20338+4540 A 740
20h 33m 50.35s +45° 39' 41.2" P.A. 313.00 sep 0.8 mag 9.64,9.95 Sp O5V
| Coord 2000 |
20338+4540 |
|
Discov num |
A 740 |
|
Comp |
|
|
Coord arcsec 2000 |
20 33 50.35 +45 39 41.2 |
|
| Date first |
1904 |
|
Date last |
2016 |
|
Obs |
16 |
|
| Pa first |
314 |
|
Pa last |
312.5 |
|
P.A. Now (θ) |
312.5° |
|
| Sep first |
0.8 |
|
Sep last |
0.83 |
|
Sep. Now (ρ) |
0.83" |
|
| Mag pri |
9.64 |
|
Mag sec |
9.95 |
|
delta mag (ΔM) |
0.31 |
|
Spectral class |
O5V (blue) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-007 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3573-00385-1 |
|
Gaia DR2 |
2071169745679972096 |
|
