18557+5714 TDT1129

 
 
18h 55m 42.29s +57 14' 25.9" P.A. 11 sep 0.5 mag 11.52,11.79
 
 
Coord 2000
18557+5714
Discov num
TDT1129
Comp
Coord arcsec 2000
18 55 42.29 +57 14 25.9
Date first
1991
Date last
2010
Obs
2
Pa first
338
Pa last
11
P.A. Now (θ)
11°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
11.52
Mag sec
11.79
delta mag (ΔM)
0.27
Spectral class
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-021
Sec motion dec
-021
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
11.1
Precise sep
0.54
Constellation
Draco
Tycho2
3927-00070-1
last precise pa
11.1
last precise sep
0.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18557+5714 TDT1129 1991 1 338 0.5 11.52 11.79 185542.29+571425.9
18557+5714 TDT1129 2010 2 11 0.5 11.52 11.79 185542.29+571425.9

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