20117+3745 SLE 958AC

 
 
20h 11m 40.42s +37 45' 16.8" P.A. 6 sep 19.7 mag 11.80,12.30
 
 
Coord 2000
20117+3745
Discov num
SLE 958
Comp
AC
Coord arcsec 2000
20 11 40.42 +37 45 16.8
Date first
1929
Date last
2015
Obs
8
Pa first
3
Pa last
6
P.A. Now (θ)
Sep first
19.8
Sep last
19.7
Sep. Now (ρ)
19.7"
Mag pri
11.80
Mag sec
12.30
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-001
Sec motion ra
-002
Pri motion dec
-004
Sec motion dec
-004
Notes
rPM=0.224 (< 0.3, Physical double)
This double is physical.
 
 
20117+3745 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20117+3745 SLE 958 AB 1985 2015 7 322 17.9 11.80 12.30 0.50
Show 20117+3745 SLE 958 AC 1929 2015 8 6 19.7 11.80 12.30 0.50 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
5.5
Precise sep
19.704
Constellation
Cygnus
Tycho2
3151-01711-1
Gaia DR2
94458072320
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20117+3745 SLE 958 AC 1998 3 5 19.6 11.80 12.30 D 201140.42+374516.8
20117+3745 SLE 958 AC 2002 4 5 19.7 11.80 12.30 D 201140.42+374516.8
20117+3745 SLE 958 AC 2015 5 6 19.7 11.80 12.30 201140.42+374516.8

If you need more information about this double, apply for a data request form to the WDS.