18427+0742 HEI 870

 
 
18h 42m 41.76s +07 41' 59.5" P.A. 347 sep 1.7 mag 12.00,12.60
 
 
Coord 2000
18427+0742
Discov num
HEI 870
Comp
Coord arcsec 2000
18 42 41.76 +07 41 59.5
Date first
1989
Date last
2015
Obs
3
Pa first
347
Pa last
347
P.A. Now (θ)
347°
Sep first
1.3
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
12.00
Mag sec
12.60
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-000
Sec motion ra
+000
Pri motion dec
-003
Sec motion dec
-001
Notes
rPM=0.667
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.1
Precise sep
1.651
Constellation
Ophiuchus
Gaia DR2
58830996096
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18427+0742 HEI 870 1997 2 349 1.3 11.80 12.50 184208.57+074200.0
18427+0742 HEI 870 2015 3 347 1.7 12.00 12.60 184241.76+074159.5

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