17353-1815 DON 847

 
 
17h 35m 20.04s -18 14' 42.8" P.A. 251 sep 2.2 mag 9.30,11.80 Sp B9.5/A0V
 
 
Coord 2000
17353-1815
Discov num
DON 847
Comp
Coord arcsec 2000
17 35 20.04 -18 14 42.8
Date first
1932
Date last
2005
Obs
4
Pa first
251
Pa last
251
P.A. Now (θ)
251°
Sep first
1.8
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
9.30
Mag sec
11.80
delta mag (ΔM)
2.5
Spectral class
B9.5/A0V (blue-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
250.7
Precise sep
2.24
Constellation
Ophiuchus
SAO
160661
Tycho2
6239-01741-1
HD
159416
last precise pa
250.7
last precise sep
2.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17353-1815 DON 847 2005 4 251 2.2 9.30 11.80 B9.5/A0V 173520.04-181442.8

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