The variable star Delta Cephei (at right), also a double star just barely resolved here, and the prototypical Cepheid variable star, and with it in the field at left, the star cluster and emission nebula, NGC 7380, aka the Wizard Nebula. All in Cepheus. This is a stack of 8 x 6 minute exposures with the stock Canon 6D at ISO 800, and TMB 92mm apo refractor at f/5.5 with the Hotech field flattener, with no focal reduction. Taken from New Mexico, Nov 11, 2014.
The famous Double Cluster (NGC 869, right and NGC 884, left) in Perseus, in a wide-field shot that incl;udes the large and sparse cluster Stock 2, aka the Muscle Man Cluster, is at top, looking here as if it outlined by a square border of stars. The field is filled with yellow supergiant stars. This is a stack of 12 x 5-minute exposures with the SharpStar 76EDPH refractor with its reducer/flattener at f/4.5, and the Canon R5 at ISO 800. Autoguided with the MGENIII, on the Star Adventurer GTi mount taken as part of testing the mount. Taken from home October 1, 2022.
Double Cluster in Perseus, NGC884 and 869 Taken with William Optics FLT110 f/6.5 apo refractor with William Optics field flattener and Pentax 6x7 camera. 30 minute exposure. Taken from home Oct., 1, 2003. Ektachrome E200 slide film. Generous area around central object allows layout of text or design elements in sky around object/ Simulates field of view of large binoculars.
