20295+4100 HJ 1523

 
 
20h 29m 28.39s +41 00' 13.8" P.A. 340.00 sep 12.0 mag 9.20,9.89 Sp F0
 
 
Coord 2000
20295+4100
Discov num
HJ 1523
Comp
Coord arcsec 2000
20 29 28.39 +41 00 13.8
Date first
1828
Date last
2015
Obs
31
Pa first
357
Pa last
340
P.A. Now (θ)
340°
Sep first
15.0
Sep last
12.0
Sep. Now (ρ)
12"
Mag pri
9.20
Mag sec
9.89
delta mag (ΔM)
0.69
Spectral class
F0 (yellow-white)
Pri motion ra
+011
Sec motion ra
-008
Pri motion dec
+018
Sec motion dec
-008
Notes
U (Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=1.527
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
339.8
Precise sep
11.967
Constellation
Cygnus
SAO
49691
Tycho2
3156-00604-1
Gaia DR2
62526936448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20295+4100 HJ 1523 2007 15 341 12.0 9.20 9.89 F0 LD 202928.39+410013.8
20295+4100 HJ 1523 2010 17 341 11.8 9.20 9.89 F0 LD 202928.39+410013.8
20295+4100 HJ 1523 2015 20 340 11.9 9.20 9.89 F0 L 202928.39+410013.8

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