20137+1302 A  1668

 
 
20h 13m 40.78s +13 01' 33.6" P.A. 340 sep 1.4 mag 9.45,12.10 Sp A0
 
 
Coord 2000
20137+1302
Discov num
A  1668
Comp
Coord arcsec 2000
20 13 40.78 +13 01 33.6
Date first
1907
Date last
1931
Obs
4
Pa first
339
Pa last
340
P.A. Now (θ)
340°
Sep first
1.3
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
9.45
Mag sec
12.10
delta mag (ΔM)
2.65
Spectral class
A0 (white)
Pri motion ra
-031
Sec motion ra
Pri motion dec
-022
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
340.1
Precise sep
1.37
Constellation
Aquila
SAO
105857
Tycho2
1081-00346-1
Gaia DR2
87873702272
HD
356965
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20137+1302 A 1668 1931 4 340 1.4 9.45 12.10 A0 201340.78+130133.6

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