18520+1705 COU 720

 
 
18h 51m 57.61s +17 05' 06.6" P.A. 194 sep 4.1 mag 9.10,12.40 Sp G5
 
 
Coord 2000
18520+1705
Discov num
COU 720
Comp
Coord arcsec 2000
18 51 57.61 +17 05 06.6
Date first
1971
Date last
1999
Obs
2
Pa first
194
Pa last
194
P.A. Now (θ)
194°
Sep first
4.1
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
9.10
Mag sec
12.40
delta mag (ΔM)
3.3
Spectral class
G5 (yellow)
Pri motion ra
+033
Sec motion ra
Pri motion dec
-034
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.9
Precise sep
4.12
Constellation
Hercules
SAO
104195
Tycho2
1588-01887-1
HD
229800
last precise pa
193.9
last precise sep
4.12
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18520+1705 COU 720 1999 2 194 4.1 9.10 12.40 G5 D 185157.61+170506.6

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