16010-1858 HDS2257

 
 
16h 00m 59.18s -18 57' 48.2" P.A. 230 sep 0.4 mag 9.83,11.94 Sp F8IV dist. 138.7 pc (452.44 l.y.)
 
 
Coord 2000
16010-1858
Discov num
HDS2257
Comp
Coord arcsec 2000
16 00 59.18 -18 57 48.2
Date first
1991
Date last
2011
Obs
3
Pa first
209
Pa last
230
P.A. Now (θ)
230°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.83
Mag sec
11.94
delta mag (ΔM)
2.11
Spectral class
F8IV (yellow-white)
Pri motion ra
-032
Sec motion ra
Pri motion dec
-034
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
229.6
Precise sep
0.376
Constellation
Libra
SAO
159631
HIP
78454
Tycho2
6208-00020-1
HD
143437
BD
BD-18 4213
Distance
138.7
Distance ly
452.44
last precise pa
229.6
last precise sep
0.376
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16010-1858 HDS2257 1991 1 209 0.2 9.83 11.94 F8IV 160059.18-185748.2
16010-1858 HDS2257 2011 3 230 0.4 9.83 11.94 F8IV 160059.18-185748.2

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