20508+4238 LDS 2457
20h 50m 42.99s +42° 38' 20.5" P.A. 106.00 sep 5.1 mag 18.50,21.30
| Coord 2000 |
20508+4238 |
|
Discov num |
LDS2457 |
|
Comp |
|
|
Coord arcsec 2000 |
20 50 42.99 +42 38 20.5 |
|
| Date first |
1954 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
108 |
|
Pa last |
105.8 |
|
P.A. Now (θ) |
105.8° |
|
| Sep first |
5.5 |
|
Sep last |
5.081 |
|
Sep. Now (ρ) |
5.081" |
|
| Mag pri |
18.50 |
|
Mag sec |
21.30 |
|
delta mag (ΔM) |
2.8 |
|
Spectral class |
|
|
| Pri motion ra |
-016 |
|
Sec motion ra |
|
|
| Pri motion dec |
+058 |
|
Sec motion dec |
|
|
| Notes |
I
(Identification uncertain) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2066639963926349312 |
|
