20300+4940 HU  589

 
 
20h 29m 59.62s +49 40' 16.0" P.A. 204.00 sep 1.6 mag 9.83,10.33 Sp G0
 
 
Coord 2000
20300+4940
Discov num
HU  589
Comp
Coord arcsec 2000
20 29 59.62 +49 40 16.0
Date first
1902
Date last
2018
Obs
8
Pa first
181
Pa last
204
P.A. Now (θ)
204°
Sep first
1.0
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
9.83
Mag sec
10.33
delta mag (ΔM)
0.5
Spectral class
G0 (yellow)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
+067
Sec motion dec
+067
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
203.5
Precise sep
1.615
Constellation
Cygnus
SAO
49710
Tycho2
3581-01380-1
Gaia DR2
41557521024
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20300+4940 HU 589 2005 7 202 1.5 9.83 10.33 G0 202959.62+494016.0
20300+4940 HU 589 2018 8 204 1.6 9.83 10.33 G0 202959.62+494016.0

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