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
Cdsa2 id
A 261
Constellation
Lyra
Ra deg
18.984952777777778
De deg
27.496444444444446
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.