18554+4052 ES 1657

 
 
18h 55m 22.99s +40 52' 12.0" P.A. 353 sep 3.9 mag 10.40,11.00
 
 
Coord 2000
18554+4052
Discov num
ES 1657
Comp
Coord arcsec 2000
18 55 22.99 +40 52 12.0
Date first
1894
Date last
2006
Obs
5
Pa first
353
Pa last
353
P.A. Now (θ)
353°
Sep first
3.6
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
10.40
Mag sec
11.00
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-001
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
352.5
Precise sep
3.892
Constellation
Lyra
last precise pa
352.5
last precise sep
3.892
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18554+4052 ES 1657 2006 5 353 3.9 10.40 11.00 185522.99+405212.0

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