20042+4234 HJ 2929AB

 
 
20h 04m 11.35s +42 31' 09.6" P.A. 245 sep 13.6 mag 12.30,12.80 dist. 66.45 pc (216.76 l.y.)
 
 
Coord 2000
20042+4234
Discov num
HJ 2929
Comp
AB
Coord arcsec 2000
20 04 11.35 +42 31 09.6
Date first
1831
Date last
2003
Obs
5
Pa first
289
Pa last
245
P.A. Now (θ)
245°
Sep first
12.0
Sep last
13.6
Sep. Now (ρ)
13.6"
Mag pri
12.30
Mag sec
12.80
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-007
Sec motion dec
-008
Notes
rPM=0.121 (< 0.3, Physical double)
This double is physical.
 
 
20042+4234 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20042+4234 HJ 2929 AB 1831 2003 5 245 13.6 12.30 12.80 0.50 <===
Show 20042+4234 NSN 727 CB 1996 2015 7 349 23.2 10.08 13.16 3.08
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
245
Precise sep
13.638
Spectr
G5
Constellation
Cygnus
SAO
49143
HIP
98829
Tycho2
3158-01602-1
BD
BD+42 3577
Distance
66.45
Distance ly
216.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20042+4234 HJ 2929 AB 2003 5 245 13.6 12.30 12.80 200411.35+423109.6

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