17549-1138 HLD 139AB

 
 
17h 54m 55.72s -11 37' 54.9" P.A. 144 sep 3.2 mag 7.03,11.06 Sp F3V dist. 68.12 pc (222.21 l.y.)
 
 
Coord 2000
17549-1138
Discov num
HLD 139
Comp
AB
Coord arcsec 2000
17 54 55.72 -11 37 54.9
Date first
1882
Date last
1991
Obs
12
Pa first
140
Pa last
144
P.A. Now (θ)
144°
Sep first
6.0
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
7.03
Mag sec
11.06
delta mag (ΔM)
4.03
Spectral class
F3V (yellow-white)
Pri motion ra
+006
Sec motion ra
+008
Pri motion dec
+044
Sec motion dec
+041
Notes
rPM=0.081 (< 0.3, Physical double)
This double is physical.
 
 
17549-1138 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 160899 17549-1138 HLD 139 AB 1882 1991 12 144 3.2 7.03 11.06 4.03 <===
Show 160899 17549-1138 HLD 139 AC 1909 2011 4 97 65.8 7.03 12.86 5.83
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
143.8
Precise sep
3.21
Constellation
Serpens
SAO
160899
HIP
87708
Tycho2
5682-01849-1
HD
163117
BD
BD-11 4478
Distance
68.12
Distance ly
222.21
last precise pa
143.8
last precise sep
3.21
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17549-1138 HLD 139 AB 1991 12 144 3.2 7.03 11.06 F3V 175455.72-113754.9

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