20185+3916 MLB 881

 
 
20h 18m 31.49s +39 16' 03.9" P.A. 145 sep 10.3 mag 9.91,11.60 Sp G0
 
 
Coord 2000
20185+3916
Discov num
MLB 881
Comp
Coord arcsec 2000
20 18 31.49 +39 16 03.9
Date first
1933
Date last
2015
Obs
9
Pa first
117
Pa last
145
P.A. Now (θ)
145°
Sep first
8.4
Sep last
10.3
Sep. Now (ρ)
10.3"
Mag pri
9.91
Mag sec
11.60
delta mag (ΔM)
1.69
Spectral class
G0 (yellow)
Pri motion ra
+016
Sec motion ra
+009
Pri motion dec
+052
Sec motion dec
-013
Notes
rPM=1.202
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
144.8
Precise sep
10.337
Constellation
Cygnus
Tycho2
3151-00048-1
Gaia DR2
57178435712
HD
228847
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20185+3916 MLB 881 2006 3 139 10.5 9.91 11.60 D 201831.49+391603.9
20185+3916 MLB 881 2015 5 145 10.4 9.91 11.60 G0 201831.49+391603.9

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