20205+5336 BU 663 AC (HD 193944)
20h 20m 30.64s +53° 35' 44.5" P.A. 69.00 sep 6.5 mag 6.18,12.40 Sp K4III dist. 606.06 pc (1976.97 l.y.)
| Coord 2000 |
20205+5336 |
|
Discov num |
BU 663 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 20 30.64 +53 35 44.5 |
|
| Date first |
1877 |
|
Date last |
1958 |
|
Obs |
7 |
|
| Pa first |
79 |
|
Pa last |
68.6 |
|
P.A. Now (θ) |
68.6° |
|
| Sep first |
8.3 |
|
Sep last |
6.48 |
|
Sep. Now (ρ) |
6.48" |
|
| Mag pri |
6.18 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
6.22 |
|
Spectral class |
K4III (yellow-orange) |
|
| Pri motion ra |
+012 |
|
Sec motion ra |
|
|
| Pri motion dec |
+009 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20205+5336 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
32491 |
20 20 31 +53 35 44 |
BU 663 AB |
2015 |
5 |
305 |
6.9 |
6.18 |
14.20 |
8.02 |
|
|
| Show |
HD 193944 |
32491 |
20 20 31 +53 35 44 |
BU 663 AC |
1958 |
7 |
69 |
6.5 |
6.18 |
12.40 |
6.22 |
|
<=== |
| Show |
|
32491 |
20 20 31 +53 35 44 |
BU 663 AD |
2015 |
2 |
232 |
12.2 |
6.18 |
14.50 |
8.32 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 193944 |
|
Constellation |
Cygnus |
|
SAO |
32491 |
|
HIP |
100295 |
|
| Tycho2 |
3937-00494-1 |
|
Gaia DR2 |
2184903365893090688 |
|
HD |
193944 |
|
HR |
7791 |
|
| ADS |
13743 |
|
BD |
BD+53 2384 |
|
Distance |
606.06 |
|
Distance ly |
1976.97 |
|
