20294+3048 HJ 1521

 
 
20h 29m 27.15s +30 48' 22.5" P.A. 194 sep 15.4 mag 9.71,11.70 Sp F5
 
 
Coord 2000
20294+3048
Discov num
HJ 1521
Comp
Coord arcsec 2000
20 29 27.15 +30 48 22.5
Date first
1828
Date last
2015
Obs
12
Pa first
188
Pa last
194
P.A. Now (θ)
194°
Sep first
12.0
Sep last
15.4
Sep. Now (ρ)
15.4"
Mag pri
9.71
Mag sec
11.70
delta mag (ΔM)
1.99
Spectral class
F5 (yellow-white)
Pri motion ra
+020
Sec motion ra
+011
Pri motion dec
-004
Sec motion dec
-006
Notes
rPM=0.452
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.8
Precise sep
15.378
Constellation
Cygnus
Tycho2
2685-01874-1
Gaia DR2
71148409088
HD
334431
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20294+3048 HJ 1521 1999 4 193 15.4 9.71 11.70 F5 D 202927.15+304822.5
20294+3048 HJ 1521 2002 6 194 15.3 9.71 11.70 F5 D 202927.15+304822.5
20294+3048 HJ 1521 2013 7 193 15.5 9.71 11.70 F5 202927.15+304822.5
20294+3048 HJ 1521 2015 8 194 15.4 9.71 11.70 F5 202927.15+304822.5

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