18034+0231 A  2191

 
 
18h 03m 26.35s +02 30' 52.6" P.A. 201 sep 3.2 mag 8.50,13.60 Sp A0 dist. 288.18 pc (940.04 l.y.)
 
 
Coord 2000
18034+0231
Discov num
A  2191
Comp
Coord arcsec 2000
18 03 26.35 +02 30 52.6
Date first
1910
Date last
1972
Obs
4
Pa first
199
Pa last
201
P.A. Now (θ)
201°
Sep first
3.2
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
8.50
Mag sec
13.60
delta mag (ΔM)
5.1
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
HIP
88445
Tycho2
0434-02090-1
HD
164929
BD
BD+02 3473
Distance
288.18
Distance ly
940.04
last precise pa
200.8
last precise sep
3.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18034+0231 A 2191 1972 4 201 3.2 7.90 13.60 A0 180326.35+023052.6

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