18553+1217 HEI 564

 
 
18h 55m 14.54s +12 17' 22.7" P.A. 230 sep 2.9 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
2015
Obs
3
Pa first
233
Pa last
230
P.A. Now (θ)
230°
Sep first
2.8
Sep last
2.9
Sep. Now (ρ)
2.9"
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
230.4
Precise sep
2.892
Constellation
Hercules
Gaia DR2
23580552064
 
 
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
18553+1217 HEI 564 2015 4 230 2.9 10.00 10.20 185514.54+121722.7

If you need more information about this double, apply for a data request form to the WDS.