20281+3847 ALI 933

 
 
20h 28m 04.77s +38 46' 36.7" P.A. 255 sep 13.8 mag 12.31,12.60
 
 
Coord 2000
20281+3847
Discov num
ALI 933
Comp
Coord arcsec 2000
20 28 04.77 +38 46 36.7
Date first
1928
Date last
2015
Obs
9
Pa first
255
Pa last
255
P.A. Now (θ)
255°
Sep first
13.7
Sep last
13.8
Sep. Now (ρ)
13.8"
Mag pri
12.31
Mag sec
12.60
delta mag (ΔM)
0.29
Spectral class
Pri motion ra
+006
Sec motion ra
+000
Pri motion dec
+002
Sec motion dec
+000
Notes
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
254.5
Precise sep
13.774
Constellation
Cygnus
Tycho2
3152-00559-1
Gaia DR2
09235895040
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20281+3847 ALI 933 1998 2 255 13.7 12.31 12.60 D 202804.77+384636.7
20281+3847 ALI 933 2002 3 255 13.7 12.31 12.60 D 202804.77+384636.7
20281+3847 ALI 933 2010 4 255 13.9 12.31 12.60 202804.77+384636.7
20281+3847 ALI 933 2015 5 254 13.8 12.31 12.60 202804.77+384636.7

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