17043-4403 DON 821

 
 
17h 04m 16.29s -44 02' 50.4" P.A. 23 sep 1.6 mag 10.17,13.30 Sp B8
 
 
Coord 2000
17043-4403
Discov num
DON 821
Comp
Coord arcsec 2000
17 04 16.29 -44 02 50.4
Date first
1930
Date last
1947
Obs
2
Pa first
25
Pa last
23
P.A. Now (θ)
23°
Sep first
1.4
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
10.17
Mag sec
13.30
delta mag (ΔM)
3.13
Spectral class
B8 (blue-white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-016
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
22.8
Precise sep
1.55
Constellation
Scorpius
Tycho2
7881-00951-1
HD
326905
last precise pa
22.8
last precise sep
1.55
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17043-4403 DON 821 1947 2 23 1.6 10.17 13.30 B8 170416.29-440250.4

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