20145+3648 SMR  39AF

 
 
20H 14M 31.98S +36 48' 22.1" P.A. 33 SEP 32.7 MAG 4.96,12.50 SP A2V DIST. 42.7 PC (139.29 L.Y.)
 
 
Coord 2000
20145+3648
Discov num
SMR  39
Comp
AF
Coord arcsec 2000
20 14 31.98 +36 48 22.1
Date first
1907
Date last
2013
Obs
7
Pa first
37
Pa last
33
P.A. Now (θ)
33°
Sep first
43.4
Sep last
32.7
Sep. Now (ρ)
32.7"
Mag pri
4.96
Mag sec
12.50
delta mag (ΔM)
7.54
Spectral class
A2V (white)
Pri motion ra
+069
Sec motion ra
Pri motion dec
+072
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20145+3648 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 29 Cyg 69678 20145+3648 ENG 72 AB 1887 2016 29 155 215.3 4.96 6.71 1.75
Show 69678 20145+3648 ENG 72 AC 1887 2012 23 22 212.3 4.96 9.99 5.03
Show 69678 20145+3648 BUP 207 AE 1896 2012 13 325 35.2 4.96 12.20 7.24
Show 69678 20145+3648 SMR 39 AF 1907 2013 7 33 32.7 4.96 12.50 7.54 <===
Show 69678 20145+3648 FYM 105 AH 2013 2013 1 133 10.0 4.96 12.00 7.04
Show 69681 20145+3648 ENG 72 BD 1894 2012 18 120 217.3 6.71 10.72 4.01
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Other name
b3 Cyg
Var name
V1644 Cyg
Constellation
Cygnus
SAO
69678
HIP
99770
Tycho2
2683-03962-1
HD
192640
HR
7736
GC
28124
BD
BD+36 3955
Flamsteed
29 Cygni
Flamsteed name
29 Cyg
Distance
42.7
Distance ly
139.29
last precise pa
32.7
last precise sep
32.7