Ferrero 27 Asterism in Draco

Located at: RA 15 hours 58 minutes 00 seconds, Dec +62 degrees 32 minutes 12 seconds

Size: 1.4' x 0.6' Magnitude: -- Class: --

North is up

West to the right


 14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56


Lumicon Red filter, 180 minutes (18 x 10 minute subs), 05/29/2017; seeing 2.1-2.8 FWHM per CCDStack

Processing: CCDStack 2.94.6355.18107, Photoshop CS5.1

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: Also known as the "Ring of Nibelung", this asterism was a one night imaging session based on Sky & Telescope's 'Deep Sky Wonders' column by Sue French. "Doodles in the Sky", June 2017, page 56. Her column is based on French amateurs Laurent Ferrero's internet list of interesting groupings of stars at