18591+2730 A   261

 
 
18h 59m 05.83s +27 29' 47.2" P.A. 194 sep 3.4 mag 9.07,12.90 Sp A0
 
 
Coord 2000
18591+2730
Discov num
A   261
Comp
Coord arcsec 2000
18 59 05.83 +27 29 47.2
Date first
1901
Date last
2016
Obs
9
Pa first
193
Pa last
194
P.A. Now (θ)
194°
Sep first
3.3
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
9.07
Mag sec
12.90
delta mag (ΔM)
3.83
Spectral class
A0 (white)
Pri motion ra
+011
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.5
Precise sep
3.37
Constellation
Lyra
last precise pa
193.5
last precise sep
3.37
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18591+2730 A 261 1986 7 194 3.7 9.07 12.90 A0 185905.83+272947.2
18591+2730 A 261 2009 8 193 3.7 9.07 12.90 A0 185905.83+272947.2
18591+2730 A 261 2016 9 194 3.4 9.07 12.90 A0 185905.83+272947.2

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