20310+3656 AC 18 AB (44 Cyg)
20h 30m 59.23s +36° 56' 09.1" P.A. 158.00 sep 2.2 mag 6.32,10.12 Sp F5Iab dist. 1041.67 pc (3397.93 l.y.)
| Coord 2000 |
20310+3656 |
|
Discov num |
AC 18 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 30 59.23 +36 56 09.1 |
|
| Date first |
1859 |
|
Date last |
1991 |
|
Obs |
18 |
|
| Pa first |
155 |
|
Pa last |
157.8 |
|
P.A. Now (θ) |
157.8° |
|
| Sep first |
2.5 |
|
Sep last |
2.16 |
|
Sep. Now (ρ) |
2.16" |
|
| Mag pri |
6.32 |
|
Mag sec |
10.12 |
|
delta mag (ΔM) |
3.8 |
|
Spectral class |
F5Iab (yellow-white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-004 |
|
| Notes |
N
(See Notes) |
|
rPM=0.559
Nature of this double is uncertain.
20310+3656 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
44 Cyg |
70135 |
20 30 59 +36 56 09 |
AC 18 AB |
1991 |
18 |
158 |
2.2 |
6.32 |
10.12 |
3.80 |
|
<=== |
| Show |
|
70135 |
20 30 59 +36 56 09 |
KUI 98 AC |
2015 |
6 |
76 |
16.8 |
6.32 |
12.80 |
6.48 |
|
|
| Show |
|
70135 |
20 30 59 +36 56 09 |
AC 18 AD |
2015 |
4 |
165 |
63.1 |
6.32 |
12.30 |
5.98 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
44 Cyg |
|
Constellation |
Cygnus |
|
SAO |
70135 |
|
HIP |
101214 |
|
| Tycho2 |
2697-01634-1 |
|
Gaia DR2 |
2057760376738256384 |
|
HD |
195593 |
|
HR |
7847 |
|
| GC |
28551 |
|
ADS |
13949 |
|
BD |
BD+36 4105 |
|
Flamsteed |
44 Cygni |
|
| Flamsteed name |
44 Cyg |
|
Distance |
1041.67 |
|
Distance ly |
3397.93 |
|
