20486+5029 D 23 CD
20h 48m 39.30s +50° 29' 13.7" P.A. 5.00 sep 1.7 mag 11.00,11.52
| Coord 2000 |
20486+5029 |
|
Discov num |
D 23 |
|
Comp |
CD |
|
Coord arcsec 2000 |
20 48 39.30 +50 29 13.7 |
|
| Date first |
1876 |
|
Date last |
2016 |
|
Obs |
13 |
|
| Pa first |
3 |
|
Pa last |
5.1 |
|
P.A. Now (θ) |
5.1° |
|
| Sep first |
1.1 |
|
Sep last |
1.669 |
|
Sep. Now (ρ) |
1.669" |
|
| Mag pri |
11.00 |
|
Mag sec |
11.52 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
|
|
| Pri motion ra |
+008 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-007 |
|
| Notes |
|
|
Nature of this double is uncertain.
20486+5029 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 198455 |
|
20 48 34 +50 29 28 |
BU 366 AB |
2018 |
35 |
130 |
1.5 |
8.70 |
8.93 |
0.23 |
|
|
| Show |
|
|
20 48 34 +50 29 28 |
BU 366 AC |
2018 |
14 |
105 |
51.1 |
8.70 |
11.00 |
2.30 |
|
|
| Show |
|
|
20 48 39 +50 29 14 |
D 23 CD |
2016 |
13 |
5 |
1.7 |
11.00 |
11.52 |
0.52 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3582-00301-1 |
|
Gaia DR2 |
2168391793622877184 |
|
