20121+3710 SEI 995

 
 
20h 12m 07.29s +37 09' 33.1" P.A. 44 sep 23.2 mag 9.50,11.00
 
 
Coord 2000
20121+3710
Discov num
SEI 995
Comp
Coord arcsec 2000
20 12 07.29 +37 09 33.1
Date first
1896
Date last
2015
Obs
10
Pa first
44
Pa last
44
P.A. Now (θ)
44°
Sep first
23.5
Sep last
23.2
Sep. Now (ρ)
23.2"
Mag pri
9.50
Mag sec
11.00
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
-003
Sec motion ra
-008
Pri motion dec
-007
Sec motion dec
-006
Notes
rPM=0.51
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
44
Precise sep
23.16
Constellation
Cygnus
Tycho2
2683-00677-1
Gaia DR2
59880313344
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20121+3710 SEI 995 1983 2 45 23.0 9.50 11.00 201207.29+370933.1
20121+3710 SEI 995 2002 3 44 23.2 9.50 11.00 201207.29+370933.1
20121+3710 SEI 995 2010 5 48 23.6 9.50 11.00 201207.29+370933.1
20121+3710 SEI 995 2015 6 44 23.2 9.50 11.00 201207.29+370933.1

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