17422+3804 RAO  20AB

 
 
17h 42m 13.25s +38 04' 14.3" P.A. 302.00 sep 2.3 mag 7.36,12.00 Sp G0 dist. 40.44 pc (131.92 l.y.)
 
 
Coord 2000
17422+3804
Discov num
RAO  20
Comp
AB
Coord arcsec 2000
17 42 13.25 +38 04 14.3
Date first
2012
Date last
2016
Obs
4
Pa first
302
Pa last
302
P.A. Now (θ)
302°
Sep first
2.2
Sep last
2.3
Sep. Now (ρ)
2.3"
Mag pri
7.36
Mag sec
12.00
delta mag (ΔM)
4.64
Spectral class
G0 (yellow)
Pri motion ra
-109
Sec motion ra
Pri motion dec
+094
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17422+3804 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 66273 17 42 13 +38 04 14 RBR 29 Aa,Ab 2018 4 138 0.0 6.00 7.30 1.30 Y
Show 66273 17 42 13 +38 04 14 RAO 20 AB 2016 4 302 2.3 7.36 12.00 4.64 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.9
Precise sep
2.268
Constellation
Hercules
SAO
66273
HIP
86642
Tycho2
3088-00450-1
Gaia DR2
1342735149009387136
HD
161163
BD
BD+38 2984
Distance
40.44
Distance ly
131.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17422+3804 RAO 20 AB 2013 2 302 2.2 7.36 12.00 G0 174213.25+380414.3
17422+3804 RAO 20 AB 2015 3 303 2.3 7.36 12.00 G0 N 174213.25+380414.3

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