18121+3559 ES 2171

 
 
18h 11m 26.86s +35 59' 27.0" P.A. 69 sep 3.9 mag 12.00,12.34
 
 
Coord 2000
18121+3559
Discov num
ES 2171
Comp
Coord arcsec 2000
18 11 26.86 +35 59 27.0
Date first
1925
Date last
2002
Obs
3
Pa first
70
Pa last
69
P.A. Now (θ)
69°
Sep first
3.8
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
12.00
Mag sec
12.34
delta mag (ΔM)
0.34
Spectral class
Pri motion ra
-008
Sec motion ra
+036
Pri motion dec
+030
Sec motion dec
+007
Notes
I (Identification uncertain)
rPM=1.354
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
68.5
Precise sep
3.94
Constellation
Hercules
Tycho2
2634-00998-1
last precise pa
68.5
last precise sep
3.94
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18121+3559 ES 2171 1925 1 70 3.8 11.00 11.50 181260.00+355900.0
18121+3559 ES 2171 1998 2 68 4.0 12.00 12.34 D 181126.86+355927.0
18121+3559 ES 2171 2002 3 69 3.9 12.00 12.34 DI 181126.86+355927.0

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