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.

Labels: , , , , ,

Monday, December 01, 2008

Triple conjunction - Venus, Jupiter & The Moon




A stunning triple conjunction graced the skies this evening. At my latitude, a gibbous Venus grazed the the moon, coming extremely close but was never eclipsed. Jupiter was a couple of degrees away forming an amazing trio. Above are a couple of photos I took of the event. One through the 200mm dobson and the other through a tripod mounted SLR.

During the conjunction, Europa entered occultation behind Jupiter as Callisto was out to the West and Io and Ganymede were paired close together to the East. It is curious to note that at that point there was a syzygy between five bodies; the Earth, the Moon, Venus, Jupiter and Europa.

Vesta continues in its movement towards Alpha Piscium. Tonight it formed a flat isoceles triangle with TYC0040-01286-1 and 112 Psc which in turn form a rough equilateral triangle with Alpha Piscium.

Labels: , , , , , , , , ,

Sunday, November 30, 2008

Venus, Jupiter and the Moon



Look to the West tomorrow evening just after sunset for the spectacular triple conjunction of Venus, Jupiter and the crescent Moon. This is a rare astronomical treat, not to be missed. The objects are bright enough to be visible even in light polluted skies. I prepared a view of the event for my location on "Cartes de Ciel" software.

Meanwhile Vesta may be observed, even only through binoculars, slowly creeping towards Alpha Piscium (Alrischa).

Labels: , , , , ,

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.

Labels: , , ,