18020+3153 SEI 555

 
 
18h 01m 58.72s +31 53' 11.4" P.A. 109 sep 19.4 mag 11.56,12.50
 
 
Coord 2000
18020+3153
Discov num
SEI 555
Comp
Coord arcsec 2000
18 01 58.72 +31 53 11.4
Date first
1899
Date last
2010
Obs
17
Pa first
116
Pa last
109
P.A. Now (θ)
109°
Sep first
19.2
Sep last
19.4
Sep. Now (ρ)
19.4"
Mag pri
11.56
Mag sec
12.50
delta mag (ΔM)
0.94
Spectral class
Pri motion ra
-011
Sec motion ra
-002
Pri motion dec
-025
Sec motion dec
-008
Notes
L (Linear solution)
rPM=0.704
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
109
Precise sep
19.4
Constellation
Hercules
Tycho2
2625-02014-1
last precise pa
109
last precise sep
19.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18020+3153 SEI 555 2007 14 109 19.7 11.56 12.50 LD 180158.72+315311.4
18020+3153 SEI 555 2010 15 109 19.7 11.56 12.50 LD 180158.72+315311.4

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