Clear sky chart site.

[g0ibi]

Not sure if this site is well known, it seems to be a new site, Google: astroweather-panel

It brings up a clear sky panel for London (UK) similar to the US site at cleardarksky.com.

Worth a look??

[Vali x]

not bad, still looking to figure out how it works

[iwatkins]

Ah, 7Timer.

Go to: 7Timer! - numerical weather forecast for anywhere over the world

Set your location etc. and then save as a bookmark, it'll update every time you go in and refresh it.

If you have an Android phone, go to the Market and search for "AstroPanel" and install the one listed as "Astro Panel (*New*)". It does the same but includes sunset/rise etc. times.

7Timer is based on unmoddified GFS forecast data so can be a bit hit and miss, especially on cloud cover.

Cheers

Ian

[Nova]

So using the key which are the best conditions for us then? Cloud cover and darkness are obvious but what about the rest? I notice seeing is measured in inches but inches of what?

[pete_l]

So using the key which are the best conditions for us then? Cloud cover and darkness are obvious but what about the rest? I notice seeing is measured in inches but inches of what?

The inches (") symbol also denotes seconds of arc - roughly: millionths of a circle

[acey]

Go to: 7Timer! - numerical weather forecast for anywhere over the world

Great site. The parameters are explained in the documentation:

http://7timer.com/misc/apanel_en_full.pdf

For deep sky the most important are cloud cover, transparency and darkness. For planetary etc you'd mostly be concerned with cloud cover and seeing, and maybe instability.

[Nova]

The inches (") symbol also denotes seconds of arc - roughly: millionths of a circle

LOL ofcourse. what a noob!!

[robertjmorgan]

Yep the 7Timer site is good. Go to the bottom of the page and enter your own Long & Lat and it'll give you your own chart.

7Timer! - numerical weather forecast for anywhere over the world=

This is the one for the Vale of Glamorgan, Wales.

cheers

Rob