17377+4250 HDS2489

 
 
17h 37m 41.00s +42 50' 01.3" P.A. 347 sep 0.6 mag 7.98,10.70 Sp A0 dist. 210.53 pc (686.75 l.y.)
 
 
Coord 2000
17377+4250
Discov num
HDS2489
Comp
Coord arcsec 2000
17 37 41.00 +42 50 01.3
Date first
1991
Date last
2014
Obs
6
Pa first
346
Pa last
347
P.A. Now (θ)
347°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
7.98
Mag sec
10.70
delta mag (ΔM)
2.72
Spectral class
A0 (white)
Pri motion ra
-008
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.3
Precise sep
0.577
Constellation
Hercules
SAO
46850
HIP
86272
Tycho2
3095-00005-1
HD
160419
BD
BD+42 2888
Distance
210.53
Distance ly
686.75
last precise pa
347.3
last precise sep
0.577
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17377+4250 HDS2489 1991 1 346 0.5 7.98 10.70 A0 D 173741.00+425001.3
17377+4250 HDS2489 2009 3 347 0.6 7.98 10.70 A0 D 173741.00+425001.3
17377+4250 HDS2489 2014 6 347 0.6 7.98 10.70 A0 173741.00+425001.3

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