18554+4052 ES 1657

 
 
18h 55m 22.99s +40 52' 12.0" P.A. 355 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
2015
Obs
6
Pa first
353
Pa last
355
P.A. Now (θ)
355°
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
354.8
Precise sep
3.865
Constellation
Lyra
Gaia DR2
02797488640
 
 
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
18554+4052 ES 1657 2015 6 355 3.9 10.40 11.00 185522.99+405212.0

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