17250-2022 DON 838

 
 
17H 25M 02.59S -20 21' 44.2" P.A. 340 SEP 0.4 MAG 11.00,11.40 SP B9V
 
 
Coord 2000
17250-2022
Discov num
DON 838
Comp
Coord arcsec 2000
17 25 02.59 -20 21 44.2
Date first
1932
Date last
1951
Obs
4
Pa first
337
Pa last
340
P.A. Now (θ)
340°
Sep first
0.4
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
11.00
Mag sec
11.40
delta mag (ΔM)
0.4
Spectral class
B9V (blue-white)
Pri motion ra
-007
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
Tycho2
6242-01183-1
HD
157610
last precise pa
340.1
last precise sep
0.4