Regulus (Alpha Leonis)

Stuart Anderson
Star: Regulus (Alpha Leonis)
Date & Time: 2107 UTC, 23.Feb.2001
Seeing: 4-5 <1-10 Seeing Scale (10 best)>. 
Location of site: Hamburg, Germany 
Lat/Long: 53 34 N, 9 59 E 
Site classification: Suburban sky 
Sky darkness: -- <Limiting magnitude> 
Binoculars: Vixen Ultima 9x63 + tripod 
FOV: 5d 
 
Stared at alpha Leo for a while in the binoculars, and indeed with averted vision and dark adaptation, a second star is visible to the W of alpha. It is very faint indeed, completed overwhelmed by the brilliance of alpha. Tends to fade in and out of view, I have to check several times to convince myself that I have indeed seen it, but there is no doubt.
 
It's so faint there's no colour discernible. SMP shows it to be TYC 833-134-1, mag 8.03, which probably represents my limiting magnitude with the binoculars tonight.
 
Since the companion lies to the W, estimated PA would be about 270 degrees. Nice to have been able to see this right next to Regulus in the Vixen 9x63. Tripod essential of course.