20021+5439 MLR 580 EF
20h 02m 29.86s +54° 37' 39.2" P.A. 159.00 sep 0.6 mag 8.90,13.20 Sp K5
| Coord 2000 |
20021+5439 |
|
Discov num |
MLR 580 |
|
Comp |
EF |
|
Coord arcsec 2000 |
20 02 29.86 +54 37 39.2 |
|
| Date first |
1981 |
|
Date last |
2008 |
|
Obs |
3 |
|
| Pa first |
174 |
|
Pa last |
159 |
|
P.A. Now (θ) |
159° |
|
| Sep first |
0.4 |
|
Sep last |
0.563 |
|
Sep. Now (ρ) |
0.563" |
|
| Mag pri |
8.90 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
4.3 |
|
Spectral class |
K5 (yellow-orange) |
|
| Pri motion ra |
+013 |
|
Sec motion ra |
|
|
| Pri motion dec |
+018 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20021+5439 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 190398 |
|
20 02 08 +54 38 28 |
BU 426 AB |
2016 |
25 |
306 |
5.9 |
8.53 |
10.50 |
1.97 |
|
|
| Show |
|
32226 |
20 02 08 +54 38 28 |
BU 426 AC |
2015 |
17 |
53 |
163.2 |
8.53 |
8.39 |
0.14 |
|
|
| Show |
|
32226 |
20 02 23 +54 40 08 |
BU 427 CD |
2011 |
15 |
336 |
3.1 |
8.39 |
10.18 |
1.79 |
|
|
| Show |
|
32226 |
20 02 23 +54 40 08 |
ENG 68 CE |
2015 |
13 |
158 |
160.3 |
8.39 |
8.92 |
0.53 |
|
|
| Show |
|
32230 |
20 02 30 +54 37 39 |
MLR 580 EF |
2008 |
3 |
159 |
0.6 |
8.90 |
13.20 |
4.30 |
|
<=== |
Sextuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
32230 |
|
Tycho2 |
3940-00818-1 |
|
Gaia DR2 |
2185777202752518400 |
|
| HD |
235089 |
|
