18464+1641 HEI 261

 
 
18h 46m 18.16s +16 40' 27.7" P.A. 104 sep 2.4 mag 10.60,11.60
 
 
Coord 2000
18464+1641
Discov num
HEI 261
Comp
Coord arcsec 2000
18 46 18.16 +16 40 27.7
Date first
1983
Date last
2007
Obs
3
Pa first
102
Pa last
104
P.A. Now (θ)
104°
Sep first
2.4
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
10.60
Mag sec
11.60
delta mag (ΔM)
1
Spectral class
Pri motion ra
+000
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
103.5
Precise sep
2.4
Constellation
Hercules
Tycho2
1583-01024-1
last precise pa
103.5
last precise sep
2.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18464+1641 HEI 261 2007 3 104 2.4 10.60 11.60 184618.16+164027.7

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