This was my first imaging session in a little for a couple of reasons. I have been diagnosed with Coronary Heart Disease and will be having a heart bypass operation next week! I have also sold my 12 inch RC, and this is the first session since with the FSQ106 now being my sole imaging scope. I spent some time getting the pointing model and polar alignment to a level of being very good, but still have some backlash in the DEC axis and should really do a new PEC(periodic error correction) model.

Anyway here is a stack of 20x 300sec exposures in HA. Using the FSQ at its native F5, and with the QHY OAG (great piece of kit!!). During the stacking I did notice that the bright part of the rejection image showed a streak in the upper right part of the image. So I went back and played the frames through the Blink module in PixInsight and yes there is an object moving. Total time somewhere near to 2 hours. I have yet to spend the time tracking it down but it is most likely already a known object.

UPDATE – I downloaded an asteroid database and I have found a perfect match. The asteroid is (508)Princetonia . It was discovered by Raymond Smith Dugan at Heidelberg, Germany in 1903. It is approximately 140km wide, so pretty big. Magnitude 13 and about 2.23 au away.

Here is a link to the asteroid? Video