Jupiter Through a 19th-Century Refractor

This capture used a very different instrument from the rest of the collection: the 162mm refractor of the Gruppo Astrofili Rozzano (GAR), from around 1870, with a G.&S. Merz objective from Munich on a J.H. Dallmeyer mount from London, housed at the Rozzano civic observatory and paired with a 2x Barlow lens. The long, slow optical path and 19th-century glass render Jupiter’s belts with a distinct soft, warm character quite unlike the modern views elsewhere in this gallery, though the same equatorial banding and pale hollow near the South Equatorial Belt are still clearly resolved.

Captured as a single video and stacked in AutoStakkert!3, then processed in PixInsight.