20136+2145 J   834

 
 
20h 13m 39.11s +21 44' 47.0" P.A. 277 sep 2.3 mag 11.00,11.70 Sp A7
 
 
Coord 2000
20136+2145
Discov num
J   834
Comp
Coord arcsec 2000
20 13 39.11 +21 44 47.0
Date first
1912
Date last
2015
Obs
9
Pa first
279
Pa last
277
P.A. Now (θ)
277°
Sep first
2.0
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
11.00
Mag sec
11.70
delta mag (ΔM)
0.7
Spectral class
A7 (white)
Pri motion ra
+012
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
276.6
Precise sep
2.315
Constellation
Vulpecula
Tycho2
1630-03156-1
Gaia DR2
80955712768
HD
346187
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20136+2145 J 834 2005 6 274 2.5 11.00 11.70 A7 201339.11+214447.0
20136+2145 J 834 2008 7 274 2.6 11.00 11.70 A7 201339.11+214447.0
20136+2145 J 834 2015 10 277 2.3 11.00 11.70 A7 201339.11+214447.0

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