17478-7103 HEI 253

 
 
17h 47m 46.30s -71 02' 06.0" P.A. 346 sep 0.8 mag 11.15,11.35
 
 
Coord 2000
17478-7103
Discov num
HEI 253
Comp
Coord arcsec 2000
17 47 46.30 -71 02 06.0
Date first
1984
Date last
1991
Obs
2
Pa first
341
Pa last
346
P.A. Now (θ)
346°
Sep first
0.8
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
11.15
Mag sec
11.35
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-015
Sec motion ra
-015
Pri motion dec
-046
Sec motion dec
-046
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
346.3
Precise sep
0.77
Constellation
Apus
Tycho2
9293-01283-1
last precise pa
346.3
last precise sep
0.77
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17478-7103 HEI 253 1991 2 346 0.8 11.15 11.35 174746.30-710206.0

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