16581+0902 HDS2401

 
 
16h 58m 06.71s +09 01' 57.4" P.A. 18 sep 0.3 mag 8.60,10.08 Sp F0 dist. 271.74 pc (886.42 l.y.)
 
 
Coord 2000
16581+0902
Discov num
HDS2401
Comp
Coord arcsec 2000
16 58 06.71 +09 01 57.4
Date first
1991
Date last
2010
Obs
3
Pa first
19
Pa last
18
P.A. Now (θ)
18°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.60
Mag sec
10.08
delta mag (ΔM)
1.48
Spectral class
F0 (yellow-white)
Pri motion ra
+000
Sec motion ra
Pri motion dec
+009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
17.5
Precise sep
0.337
Constellation
Ophiuchus
HIP
83037
Tycho2
0975-02239-1
HD
153271
BD
BD+09 3299
Distance
271.74
Distance ly
886.42
last precise pa
17.5
last precise sep
0.337
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16581+0902 HDS2401 1991 1 19 0.4 8.60 10.08 F0 D 165806.71+090157.4
16581+0902 HDS2401 2007 2 18 0.4 8.60 10.08 F0 D 165806.71+090157.4
16581+0902 HDS2401 2010 3 18 0.3 8.60 10.08 F0 D 165806.71+090157.4

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