An Eccentric Anomaly: Astronomy

Ed Davies's Blog


Pages tagged: Astronomy

Things in space and in the sky in general

Tonga Eruption Detection

Volcanic eruption detected in Dunbeath!

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Aurora

Last night (2017-11-07 Tue) there was the best aurora display I've seen.

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Funnel Cloud

Not something often seen in Caithness but there was a nice funnel cloud off to the south west of my house site this morning, just after 11 o'clock.

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Noctilucent Clouds

Took a while to get settled for sleep last night so finished up looking roughly north out of the kitchen window at around 01:00 BST (00:00 UTC). As it had been mostly clear I'd looked out a few times earlier in the evening in the hope of seeing noctilucent clouds but there'd been some patches of low-level cloud in the way by the time it had got somewhat dark.

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Transit of Mercury

I ended my previous blog post with “Looks like wind and/or rain (mostly “and”) till Friday now. We'll see.” We saw; it was. Though it dried up as the week went on it was windy until Friday, but things have been a bit better for the last few days - particularly today (Monday) for the transit of Mercury.

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Eclipse

Well that was an epic bit of ill-preparation and marginal weather but I did get to see something and take a few piccies.

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Infrared Myths

I see a lot of confusion about infrared when it comes to interactions with buildings, astronomy and so on. Here's a bit of a brain dump to refer to in such cases which I hope will throw some light, of various wavelengths, on the matter.

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A Rant About Kilograms On Mars

The CACM have published a reasonably interesting article by Gerard J. Holzmann about verification of the software on the Curiosity Rover: Mars Code.

Near the beginning, though, it says:

On Earth, Curiosity weighed 900 kg. It weighs no more than 337.5 kg on Mars because Mars is smaller than Earth.

Nope!

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Aurora

I've just posted this on the Wycombe Astronomical Society forum and thought I might as well put a copy here.

Saw aurora Sunday (February 23rd) and Thursday (27th) nights.

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Elsewhere

Some comments made on other people's blogs:

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