21074+3853 MLB 890

 
 
21h 07m 24.53s +38 53' 04.3" P.A. 250 sep 5.5 mag 12.69,11.60
 
 
Coord 2000
21074+3853
Discov num
MLB 890
Comp
Coord arcsec 2000
21 07 24.53 +38 53 04.3
Date first
1933
Date last
2016
Obs
9
Pa first
249
Pa last
250
P.A. Now (θ)
250°
Sep first
5.0
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
12.69
Mag sec
11.60
delta mag (ΔM)
1.09
Spectral class
Pri motion ra
-019
Sec motion ra
Pri motion dec
+009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
249.9
Precise sep
5.51
Constellation
Cygnus
Gaia DR2
42238197248
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21074+3853 MLB 890 1998 2 250 5.6 12.80 11.70 D 210724.52+385304.3
21074+3853 MLB 890 2002 3 250 5.6 12.69 11.60 D 210724.53+385304.3
21074+3853 MLB 890 2010 4 251 5.5 12.69 11.60 210724.53+385304.3
21074+3853 MLB 890 2016 6 250 5.5 12.69 11.60 210724.53+385304.3

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