Wednesday, August 19, 2009

Spectacular mutual event movies from Jupiter, complicated Perseids, a tough penumbral eclipse and more

Hard to define the highlight of astronomical events observed in the past two weeks - but a hi-res video of a mutual event of two Jovian satellites on Aug. 16 from the Philippines may well be it; it's also discussed here, here, here and here while someone else measured a nice lightcurve. A few hours earlier another mutual event movie with resolved satellites was shot in Germany while this this video from France of Aug. 4 led to a fine lightcurve, too. • Io covering its own shadow near opposition. • About the occultation of 45 Cap a long report with some analysis and an article with few insights but pretty pictures.

• While at Jupiter, here is a detection of its moon Thebe by an amateur with a scope < 1 m - probably two firsts for this moon discovered by Voyager 1! • About the fading impact spot we have brief updates from Aug. 18 and Aug. 16, a longer report and an update of Aug. 13, a polar animation, a drawing of Aug. 18, pictures of Aug. 7 and Aug. 6 (another one, also an animation and a smooth-morphed version, and yet another picture), several current pictures with & without the spot, a video from July, a long summary of events, a podcast in which H. Hammel discusses the HST observations - and yet another podcast.

Saturn's rings at equinox with the Sun exactly from the side have been hard to observe as the planet is very close to the Sun now - but there are pictures of Aug. 10, Aug. 14 and Aug. 15 (a daytime image!) and visual reports of Aug. 14 and Aug. 15. • On Uranus an amateur detection of Miranda (there is still some interest in these moons). • And Venus on Aug. 8.

The penumbral eclipse of the Moon on Aug. 6 was invisible to the eye, regardless of optical equipment (incl. none at all) - but the effect could be brought out photographically: by image subtraction like here, here, here, here (more), here, here or here or by blinking like here, here, here (more) or here. • The Moon vs. the Pleiades on Aug. 14, the thin waning lunar crescent on Aug. 19 very close to new moon, very hi-res Moon pics and the ISS crossing the Sun with many details.

10 years after the big solar eclipse in Europe some look back here, here, here, here or here. • And more pics/vids/reports from the big eclipse of 2009 from Varanasi (contact animation), the Indian flight, Chongqing, Wuhan (plus a picture), Tianhuangping (more, other expedition), Hangzhou, Yangshan, Japan and the Costa Classica (a report and more pics & data). Plus a highly processed corona from Enewetak!

The Perseids - more previews here, here and here - reached three separate maxima! From the night Aug. 12/13 a video (someone else had 1000 meteors on his camera), fine Mintron stills, a report from Europe and a composite image, from the outburst on Aug. 12 one locations's data, a report and notes about the brightness of the meteors, from the night Aug. 11/12 a composite, someone thinking these were the best Perseids in years, a review, another one, a gallery, more pictures, another composite, a nice picture, radio experiments, the alleged success of a hyped Twitter event which made not everyone happy (including amateur astronomers because of the extremely low signal/noise) - and a Perseids satire.

A fireball over central Europe on Aug. 15 at 20:00 UTC has considerable 'impact' such as here, here, here, here (video during a music festival!) and here. • Meet the SALSA meteor camera. • The new comet Garradd might reach 8th mag. in 2011 while a new Boattini isn't promising. • There are a new Nova Oph (Aug. 17 pig, report) and Nova Sgr #3 (report) - while a bizarre video tried to explain Eps Aur. • Finally impressions from Stellafane 2009.

1 comment:

Jodl said...

Hi Daniel,

You left a note before in one of our sites indicating the poor probability of observing the Annular eclipse in Qingdao on January 15, 2010.

Can you give me some useful links on cloud cover data that would help me plan my observation for this event. I would like to weigh the options but apparently at this point I still have my sights for Qingdao, China..

Appreciate your thoughts