18171+2315 POU3378

 
 
18h 17m 00.95s +23 15' 14.2" P.A. 203 sep 4.5 mag 12.00,15.20
 
 
Coord 2000
18171+2315
Discov num
POU3378
Comp
Coord arcsec 2000
18 17 00.95 +23 15 14.2
Date first
1904
Date last
2001
Obs
5
Pa first
227
Pa last
203
P.A. Now (θ)
203°
Sep first
6.7
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
12.00
Mag sec
15.20
delta mag (ΔM)
3.2
Spectral class
Pri motion ra
-018
Sec motion ra
Pri motion dec
-013
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
203.3
Precise sep
4.487
Constellation
Hercules
last precise pa
203.3
last precise sep
4.487
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18171+2315 POU3378 1954 3 221 6.4 11.90 14.10 181760.00+231500.0
18171+2315 POU3378 1999 4 206 4.6 12.00 15.20 181700.95+231514.2
18171+2315 POU3378 2001 5 203 4.5 12.00 15.20 181700.95+231514.2

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