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comment by caelum19
caelum19  ·  3104 days ago  ·  link  ·    ·  parent  ·  post: Pubski: May 25, 2016

Haha, I hope it chokes.

How shit is "shit weather"? The Irish rain never bothers me when I'm playing airsoft due to all the movement and concentration involved.





user-inactivated  ·  3104 days ago  ·  link  ·  

    How shit is "shit weather"?

Cloudy for my solar program earlier this month, cloudy for the Mercury Transit. Cloudy and rain for the nights around first quarter moon, when we go out most often. And cloudy and drizzle for the prime Mars viewing this week and early next.

    The Irish rain never bothers me

At one time the biggest and most expensive telescope in the world was located in Ireland. IRELAND I'm amazed they had any clear skies at all to look at stuff!

caelum19  ·  3104 days ago  ·  link  ·  

Oh, yeah I suppose that's a hobbie that relies quite heavily on the weather. What sort of telescope(s) do you have?

Also, I had NO idea about that awesome telescope, thanks for showing me. We have some clear days in the summer, but there are better places to build the world's biggest telescope.

user-inactivated  ·  3104 days ago  ·  link  ·  

    What sort of telescope(s) do you have?

I have a 14" Dobsonian, an 80mm refactor, a 5" Cass, a solar scope, a few pairs of binoculars including a 20x80 pair I use to intimidate the public these bad boys, and the club has a pair of 16" scopes that I am trying to get to use for some photography skill building.

    but there are better places to build the world's biggest telescope.

Fun story time. William Herschel was a composer who fell into astronomy and discovered Uranus, became the Royal Astronomer, and really created observational Astronomy. From Ireland and Wales. His son John was an amazing man in his own right. One of the things that John Herschel came up with is putting telescopes on mountains to get over as much air as possible. Before him, telescopes were built where the scientists lived, usually in cities with access to infrastructure.

One of the reasons they build the big scopes in places like Chile is the desert there gets .01" of rain a decade and sits at 14,000 feet which is above roughly 80% of the water vapour in the air. You can do some of the neat infrared stuff there. The top of the volcanoes in Hawaii have a benefit that not only are they at 12,000+ feet but the ocean all around them makes for very still air. Then you can use lasers to wiggle the mirrors and cancel out the interference from the atmosphere.

And to think, the idea of putting the big telescopes on mountains is just about 150 years old.