17274-4416 DON 839

 
 
17h 27m 23.07s -44 16' 14.5" P.A. 275 sep 2.6 mag 11.11,12.40 Sp A3
 
 
Coord 2000
17274-4416
Discov num
DON 839
Comp
Coord arcsec 2000
17 27 23.07 -44 16 14.5
Date first
1932
Date last
2000
Obs
4
Pa first
273
Pa last
275
P.A. Now (θ)
275°
Sep first
2.0
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
11.11
Mag sec
12.40
delta mag (ΔM)
1.29
Spectral class
A3 (white)
Pri motion ra
+021
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
274.9
Precise sep
2.64
Constellation
Scorpius
Tycho2
7895-00533-1
last precise pa
274.9
last precise sep
2.64
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17274-4416 DON 839 1948 2 273 2.1 11.11 12.40 A3 172723.07-441614.5
17274-4416 DON 839 2000 3 275 2.6 11.11 12.40 A3 172723.07-441614.5

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