20021+5439 BU 427 CD
20h 02m 22.85s +54° 40' 07.5" P.A. 336.00 sep 3.1 mag 8.39,10.18 Sp F2III
| Coord 2000 |
20021+5439 |
|
Discov num |
BU 427 |
|
Comp |
CD |
|
Coord arcsec 2000 |
20 02 22.85 +54 40 07.5 |
|
| Date first |
1877 |
|
Date last |
2011 |
|
Obs |
15 |
|
| Pa first |
337 |
|
Pa last |
336.2 |
|
P.A. Now (θ) |
336.2° |
|
| Sep first |
3.0 |
|
Sep last |
3.097 |
|
Sep. Now (ρ) |
3.097" |
|
| Mag pri |
8.39 |
|
Mag sec |
10.18 |
|
delta mag (ΔM) |
1.79 |
|
Spectral class |
F2III (yellow-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
+000 |
|
| Notes |
N
(See Notes) |
|
rPM=1
This double is not physical.
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 |
32226 |
|
Tycho2 |
3940-00754-1 |
|
Gaia DR2 |
2185778130468039424 |
|
| HD |
190464 |
|
