18428+4619 ES 1263

 
 
18h 42m 52.51s +46 19' 26.5" P.A. 257 sep 4.9 mag 10.91,13.40
 
 
Coord 2000
18428+4619
Discov num
ES 1263
Comp
Coord arcsec 2000
18 42 52.51 +46 19 26.5
Date first
1913
Date last
2003
Obs
3
Pa first
242
Pa last
257
P.A. Now (θ)
257°
Sep first
6.2
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
10.91
Mag sec
13.40
delta mag (ΔM)
2.49
Spectral class
Pri motion ra
-008
Sec motion ra
-037
Pri motion dec
-017
Sec motion dec
-018
Notes
rPM=0.705
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
256.5
Precise sep
4.911
Constellation
Lyra
Tycho2
3527-01861-1
last precise pa
256.5
last precise sep
4.911
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18428+4619 ES 1263 1998 2 255 4.9 10.91 13.40 D 184252.51+461926.5
18428+4619 ES 1263 2003 3 257 4.9 10.91 13.40 D 184252.51+461926.5

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