20176+3729 SLE 987

 
 
20h 17m 38.10s +37 29' 14.0" P.A. 208 sep 11.2 mag 10.90,11.70
 
 
Coord 2000
20176+3729
Discov num
SLE 987
Comp
Coord arcsec 2000
20 17 38.10 +37 29 14.0
Date first
1929
Date last
2015
Obs
10
Pa first
215
Pa last
208
P.A. Now (θ)
208°
Sep first
12.4
Sep last
11.2
Sep. Now (ρ)
11.2"
Mag pri
10.90
Mag sec
11.70
delta mag (ΔM)
0.8
Spectral class
Pri motion ra
-022
Sec motion ra
-006
Pri motion dec
-013
Sec motion dec
-004
Notes
rPM=0.718
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
208.4
Precise sep
11.191
Constellation
Cygnus
Tycho2
2684-01119-1
Gaia DR2
36421200000
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20176+3729 SLE 987 1998 3 209 11.5 10.90 11.70 D 201738.10+372914.0
20176+3729 SLE 987 2002 4 209 11.4 10.90 11.70 D 201738.10+372914.0
20176+3729 SLE 987 2010 5 209 10.8 10.90 11.70 201738.10+372914.0
20176+3729 SLE 987 2015 6 208 11.2 10.90 11.70 201738.10+372914.0

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