20214+3656 BLL  50

 
 
20h 21m 21.88s +36 55' 55.8" P.A. 110 sep 125.6 mag 9.54,9.82 Sp M4
 
 
Coord 2000
20214+3656
Discov num
BLL  50
Comp
Coord arcsec 2000
20 21 21.88 +36 55 55.8
Date first
1880
Date last
2015
Obs
14
Pa first
111
Pa last
110
P.A. Now (θ)
110°
Sep first
124.7
Sep last
125.6
Sep. Now (ρ)
125.6"
Mag pri
9.54
Mag sec
9.82
delta mag (ΔM)
0.28
Spectral class
M4 (red)
Pri motion ra
+000
Sec motion ra
-003
Pri motion dec
-004
Sec motion dec
-007
Notes
N (See Notes)
rPM=0.557
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
110
Precise sep
125.583
Constellation
Cygnus
Tycho2
2684-00522-1
Gaia DR2
48278709760
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20214+3656 BLL 50 2004 7 110 125.4 9.54 9.82 M4 N 202121.88+365555.8
20214+3656 BLL 50 2010 11 110 126.0 9.54 9.82 M4 N 202121.88+365555.8
20214+3656 BLL 50 2015 14 110 125.6 9.54 9.82 M4 N 202121.88+365555.8

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