French 1( Alessi J21075+1619) Open Cluster* in Delphinus

Located at: RA 21 hours 07 minutes 22 seconds, Dec +16 degrees 18 minutes 00 seconds

Size: 13' Magnitude: -- Class: Asterism?

North is up

West to the right


 8" f5 Newtonian reflector


  ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56


Lumicon Deep Sky filter, 150 minutes (15 x 10 minute subs), 11/13/2007


CCDStack 1.3, Photoshop 7.0


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

Notes:* This object is from "Star Clusters", by Brent Archinal and Steven Hynes. 'Discovered' by Susan French in 1997 ... also know as the "Toadstool". The small Galaxy NGC 7025 (1.9'x1.2', 13.7p mag, Cl:Sa) is at the base of the stem, as the figure of the Toadstool points to the southwest (lower right). Proper motions of the brighter stars in this group are similar, so it remains to be determined if this is an association of stars or an asterism