18553+1217 HEI 564

 
 
18h 55m 14.54s +12 17' 22.7" P.A. 231 sep 2.8 mag 10.00,10.20
 
 
Coord 2000
18553+1217
Discov num
HEI 564
Comp
Coord arcsec 2000
18 55 14.54 +12 17 22.7
Date first
1987
Date last
2001
Obs
3
Pa first
233
Pa last
231
P.A. Now (θ)
231°
Sep first
2.8
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
10.00
Mag sec
10.20
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
+001
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
230.8
Precise sep
2.849
Constellation
Hercules
last precise pa
230.8
last precise sep
2.849
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18553+1217 HEI 564 1987 1 233 2.8 10.00 10.20 185521.40+121743.8
18553+1217 HEI 564 2001 3 231 2.8 10.00 10.20 185514.54+121722.7

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