20256-3538 B   990

 
 
20h 25m 34.74s -35 37' 31.2" P.A. 194.00 sep 2.2 mag 10.11,14.60 Sp F8
 
 
Coord 2000
20256-3538
Discov num
B   990
Comp
Coord arcsec 2000
20 25 34.74 -35 37 31.2
Date first
1927
Date last
2015
Obs
2
Pa first
195
Pa last
194
P.A. Now (θ)
194°
Sep first
2.2
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
10.11
Mag sec
14.60
delta mag (ΔM)
4.49
Spectral class
F8 (yellow-white)
Pri motion ra
-017
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
S (Parallax indidates non-physical)
Visually invisible, K-band or other infrared star This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.7
Precise sep
2.166
Constellation
Sagittarius
SAO
212108
Tycho2
7467-01138-1
Gaia DR2
77630640128
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20256-3538 B 990 1927 1 195 2.2 10.11 14.60 F8 202534.74-353731.2
20256-3538 B 990 2015 2 194 2.2 10.11 14.60 F8 S 202534.74-353731.2

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