Sunday, December 21, 2008

Winter Solstice & Vesta update


Yesterday evening I took the opportunity to have a look at Vesta. It has now passed between TYC0040-01286-1 and 112 Psc and it lay just below TYC0040-00885-1 making an isosceles triangle with the two previously mentioned stars.

Today is the winter solstice. The photo above was taken about one and a quarter hours before the solstice which fell at exactly 13:04 local time. The photo is of a sundial which shows the solar analemma (the path followed by the midday sun). The shadow of the gnomon is (almost) in its position at the top of the analemma, where it should be on the shortest day of the year. On the day of the summer solstice, the shadow will fall on the lowest point of the analemma.

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Tuesday, November 25, 2008

Vesta

After a hiatus in my observational astronomy, last night I tried out my new Celestron Skymaster 15x70 binoculars on an observation of the asteroid Vesta. At this time, this asteroid is well placed close to the star Alpha Piscium.

I downloaded a very good chart from the Sky & Telescope website. The asteroid was quickly found in the expected position, almost equidistant between the stars TYC0040-01162-1, TYC0041-01221-1 and TYC0041-01255-1 on the border between Pisces and Cetus. I will now check tonight if there was any movement in the object I observed that would confirm that it is the asteroid.

Otherwise I tried the binoculars on some open clusters like M35, M41, M36, M37, M38 and the Pleiades. I also observed the Perseus Double Cluster, the Orion Nebula, the Andromeda Galaxy and was quite pleased to find and observe Hind's Crimson star, R Leporis.

Altogether, I am quite pleased with the performance of my new binoculars.

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