21111+3918 MLB 892

 
 
21h 11m 04.80s +39 17' 42.3" P.A. 186 sep 4.8 mag 9.90,11.20
 
 
Coord 2000
21111+3918
Discov num
MLB 892
Comp
Coord arcsec 2000
21 11 04.80 +39 17 42.3
Date first
1933
Date last
2010
Obs
4
Pa first
190
Pa last
186
P.A. Now (θ)
186°
Sep first
3.9
Sep last
4.8
Sep. Now (ρ)
4.8"
Mag pri
9.90
Mag sec
11.20
delta mag (ΔM)
1.3
Spectral class
Pri motion ra
-007
Sec motion ra
-029
Pri motion dec
-002
Sec motion dec
-045
Notes
rPM=0.902
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
186.4
Precise sep
4.79
Constellation
Cygnus
last precise pa
186.4
last precise sep
4.79
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21111+3918 MLB 892 1998 2 188 4.5 9.90 11.20 D 211104.80+391742.3
21111+3918 MLB 892 2002 3 188 4.4 9.90 11.20 D 211104.80+391742.3
21111+3918 MLB 892 2010 4 185 3.8 9.90 11.20 211104.80+391742.3

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