The first number refers to magnification - in both cases, "7 power." The second number refers to the size of the objective lens - the large lens at the front of the binocular - measured in millimeters. ![]() The best kind is either 7 x 35 or 7 x 50. Your best option is looking out over a westward-facing shoreline that is perfectly flat and wide open with nothing to block your view.Īnd also make sure to have a good pair of binoculars, as they will be extremely beneficial in your making a sighting. Make sure you do not have any tall objects - buildings or trees - in that direction. In fact, I would strongly suggest that you stake out an observing site with a clear and unobstructed view of the western horizon if you hope to see two of these distant worlds. ![]() But like the Messier Marathon bagging all of these objects is going to be a challenge, especially with some of the planets.
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