17475-1806 HU  186

 
 
17h 47m 27.09s -18 06' 25.6" P.A. 317 sep 1 mag 7.58,10.26 Sp A7V dist. 153.85 pc (501.86 l.y.)
 
 
Coord 2000
17475-1806
Discov num
HU  186
Comp
Coord arcsec 2000
17 47 27.09 -18 06 25.6
Date first
1900
Date last
1991
Obs
10
Pa first
340
Pa last
317
P.A. Now (θ)
317°
Sep first
1.0
Sep last
1.0
Sep. Now (ρ)
1"
Mag pri
7.58
Mag sec
10.26
delta mag (ΔM)
2.68
Spectral class
A7V (white)
Pri motion ra
+008
Sec motion ra
+002
Pri motion dec
-004
Sec motion dec
-005
Notes
rPM=0.68
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
316.9
Precise sep
0.98
Constellation
Sagittarius
SAO
160819
HIP
87061
Tycho2
6253-01604-1
HD
161643
BD
BD-18 4645
Distance
153.85
Distance ly
501.86
last precise pa
316.9
last precise sep
0.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17475-1806 HU 186 1991 10 317 1.0 7.58 10.26 A7V D 174727.09-180625.6

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