19081+3031 HO   99

 
 
19h 08m 08.51s +30 31' 11.8" P.A. 166 sep 0.4 mag 9.90,9.90 Sp A2
 
 
Coord 2000
19081+3031
Discov num
HO   99
Comp
Coord arcsec 2000
19 08 08.51 +30 31 11.8
Date first
1881
Date last
2007
Obs
24
Pa first
128
Pa last
166
P.A. Now (θ)
166°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.90
Mag sec
9.90
delta mag (ΔM)
0
Spectral class
A2 (white)
Pri motion ra
+000
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
166
Precise sep
0.403
Constellation
Lyra
SAO
67853
Tycho2
2640-00850-1
last precise pa
166
last precise sep
0.403
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19081+3031 HO 99 1990 23 161 0.3 9.90 9.90 A2 190808.51+303111.8
19081+3031 HO 99 2007 24 166 0.4 9.90 9.90 A2 190808.51+303111.8

If you need more information about this double, apply for a data request form to the WDS.