11091+4231 WNO 31 AD

11h 09m 07.15s +42° 30' 10.5" P.A. 238.00 sep 45.3 mag 13.30,16.30

Coord 2000 11091+4231 Discov num WNO  31 Comp AD Coord arcsec 2000 11 09 07.15 +42 30 10.5
Date first 1955 Date last 2015 Obs 8
Pa first 239 Pa last 238.2 P.A. Now (θ) 238.2°
Sep first 45.5 Sep last 45.262 Sep. Now (ρ) 45.262"
Mag pri 13.30 Mag sec 16.30 delta mag (ΔM) 3 Spectral class
Pri motion ra -019 Sec motion ra -007
Pri motion dec +010 Sec motion dec +003
Notes




rPM=0.647

Nature of this double is uncertain.



11091+4231 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 11 09 07 +42 30 10 HJ 2559 AB 2015 10 267 14.9 13.30 13.80 0.50
Show 11 09 07 +42 30 10 WNO 31 AC 2015 8 5 29.6 13.30 16.10 2.80
Show 11 09 07 +42 30 10 WNO 31 AD 2015 8 238 45.3 13.30 16.30 3.00 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Ursa Major Gaia DR2 777944887999239296