With the usual gear, HEQ5, N250/1200, TSO ADC, ASI 224MC (cooled), home observatory, mountpusher I imaged some multiple star systems.

HD51055

My old friend, 40 Eridani

Tau Orionis

Trapezium

I had both some time and clear skies to image yet another colored binary.  I used the HEQ5, N250/1200, TSO ADC, ASI 224MC (cooled), home observatory, mountpusher setup well known by those who follow my posts, and the heavy processing described here. The main issue with these binary stars is that they are faint, and their companions are even more so, so even my mountpusher has a problem following the target — the mountpusher needs at least two-three frames per second to not beep and have the time to apply the needed corrections.

HD33802, HIP 24244 [* in Lep] 3Iot Lep, B8V, 232ly 4.45^m  [simbad] [photo-planner]

Some binaries, like Albireo and Alcor-Mizar are well known, other less so. This time, using my program like always, I dug out two binaries I had no reason to hear about. It’s not exactly “yet another balcony survey“.

HD 36167, HIP 25737 [* in Ori] 31 Ori, K5III, 508ly 4.71^m  [simbad] [photo-planner]

HD 49933, HIP 32851 [* in Mon] F2V, 96.8ly 5.78^m  [simbad] [photo-planner]

HD 36167

HD 49933