18022+0302 A  2190

 
 
18h 02m 09.35s +03 01' 36.1" P.A. 85 sep 3.7 mag 8.90,14.00 Sp A5
 
 
Coord 2000
18022+0302
Discov num
A  2190
Comp
Coord arcsec 2000
18 02 09.35 +03 01 36.1
Date first
1910
Date last
2000
Obs
4
Pa first
78
Pa last
85
P.A. Now (θ)
85°
Sep first
3.4
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
8.90
Mag sec
14.00
delta mag (ΔM)
5.1
Spectral class
A5 (white)
Pri motion ra
+015
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
Tycho2
0434-00321-1
HD
164649
last precise pa
84.5
last precise sep
3.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18022+0302 A 2190 1930 3 74 3.4 8.90 14.00 A5 180209.35+030136.1
18022+0302 A 2190 2000 4 85 3.7 8.90 14.00 A5 180209.35+030136.1

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