20173+3837 TDT2141

 
 
20h 17m 20.76s +38 37' 20.1" P.A. 96 sep 1.3 mag 11.27,11.31 Sp B8
 
 
Coord 2000
20173+3837
Discov num
TDT2141
Comp
Coord arcsec 2000
20 17 20.76 +38 37 20.1
Date first
1991
Date last
2015
Obs
4
Pa first
98
Pa last
96
P.A. Now (θ)
96°
Sep first
1.3
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
11.27
Mag sec
11.31
delta mag (ΔM)
0.04
Spectral class
B8 (blue-white)
Pri motion ra
-011
Sec motion ra
-011
Pri motion dec
-006
Sec motion dec
-006
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
96.2
Precise sep
1.298
Constellation
Cygnus
Tycho2
3151-01565-1
Gaia DR2
97496583296
HD
228762
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20173+3837 TDT2141 1991 1 98 1.3 11.27 11.31 201720.76+383720.1
20173+3837 TDT2141 2000 2 99 1.2 11.27 11.31 B8 201720.76+383720.1
20173+3837 TDT2141 2015 3 96 1.3 11.27 11.31 B8 201720.76+383720.1

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