17308-7329 HEI 390

 
 
17h 30m 47.36s -73 29' 30.8" P.A. 272 sep 0.7 mag 11.32,11.72
 
 
Coord 2000
17308-7329
Discov num
HEI 390
Comp
Coord arcsec 2000
17 30 47.36 -73 29 30.8
Date first
1985
Date last
1991
Obs
2
Pa first
279
Pa last
272
P.A. Now (θ)
272°
Sep first
0.5
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
11.32
Mag sec
11.72
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-012
Sec motion dec
-012
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
271.7
Precise sep
0.71
Constellation
Apus
Tycho2
9288-00520-1
last precise pa
271.7
last precise sep
0.71
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17308-7329 HEI 390 1991 2 272 0.7 11.32 11.72 173047.36-732930.8

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