20108+3654 SEI 956

 
 
20h 10m 47.42s +36 53' 49.8" P.A. 257 sep 12 mag 12.37,12.90
 
 
Coord 2000
20108+3654
Discov num
SEI 956
Comp
Coord arcsec 2000
20 10 47.42 +36 53 49.8
Date first
1896
Date last
2015
Obs
10
Pa first
255
Pa last
257
P.A. Now (θ)
257°
Sep first
12.1
Sep last
12.0
Sep. Now (ρ)
12"
Mag pri
12.37
Mag sec
12.90
delta mag (ΔM)
0.53
Spectral class
Pri motion ra
-005
Sec motion ra
-004
Pri motion dec
-010
Sec motion dec
-005
Notes
rPM=0.456
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
257.2
Precise sep
12.04
Constellation
Cygnus
Tycho2
2683-02171-1
Gaia DR2
22513304192
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20108+3654 SEI 956 1983 2 75 12.2 10.50 11.00 201007.50+365400.0
20108+3654 SEI 956 1998 3 257 12.2 12.37 12.90 D 201047.42+365349.8
20108+3654 SEI 956 2002 4 257 12.1 12.37 12.90 D 201047.42+365349.8
20108+3654 SEI 956 2010 5 255 12.3 12.37 12.90 201047.42+365349.8
20108+3654 SEI 956 2015 6 257 12.1 12.37 12.90 201047.42+365349.8

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