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Journal - Franklin Institute of the State of Pennsylvania (1826)

Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 155

An illustration from Journal - Franklin Institute of the State of Pennsylvania, 1826, leaf 155
ns. Turning the equatorial on Jupiter—as has been my practiceevery clear night this season—I was struck with the beautiful de-finition and steady sharpness of outline of the details of his disc, andespecially was my attention riveted on a ruddy elliptical line lying j ustbelow the S. equatorial… … X HeaverDelt J M^ GtugiUtLT3h JUPITER. As seen Jan S^/S70 at the SayrcOluen-atoiyLehigli UydversLfy Ohservatio?is on the Planet Jupiter. V6l Hrst distvastfal of my observation; but, keeping my eye steadilyupon it I perceived tliat the ellipse became more and more distinctas it advanced towards the…

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