Meteors ...

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Mick F
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Location: Tamar Valley, Cornwall

Re: Meteors ...

Postby Mick F » 7 Oct 2017, 6:05pm

When we lived in the east of Scotland - 1974 to 1980 - I had a telescope.
The skies were clear, and if I needed more darkness away from street lights and light pollution and more sky clarity where we lived, I used to drive up into the eastern sides of the Campsie Fells with my telescope and tripod.

We moved to Plymouth in early 1980, and within a few months, I'd sold it all due to hazy and obscured skies. :oops:

I don't expect to see any meteors or anything any more.
Mick F. Cornwall

old_windbag
Posts: 1446
Joined: 19 Feb 2015, 3:55pm

Re: Meteors ...

Postby old_windbag » 12 Oct 2017, 12:31pm

Last night was a little breezy but when I saw the cloudless sky and the clarity of the moon I could not resist getting my scope( 8" f5 newtonian ) out to view it. There are many deep sky objects( and planets too ) that can be observed with a telescope but for easy access for many, the moon takes some beating. View by eye, binoculars or any sized scope and it's a fantastic.

I set up quickly in the early hours and had 20 mins of observing, it was like flying over the surface as in the apollo mission films. I could use 100x mag easily without any atmospheric issue, x200 just showing some disturbance. I pushed the boat out to x400 and glad I did, slight focus movement but overall sharp detailed images. The cast shadows of mountains and the appenines, the alpine valley was the best I've ever seen it. I'm pretty sure had I imaged it that the rille down the middle would have been visible. Had I spent longer my own eyes may have seen it.

I really reccomend trying to find a local astronomy group for anyone without access to telescope etc. Go on an observing night and even if it is just the moon you view it'll take your breath away.

Psamathe
Posts: 7517
Joined: 10 Jan 2014, 8:56pm

Re: Meteors ...

Postby Psamathe » 12 Oct 2017, 3:26pm

old_windbag wrote:Last night was a little breezy but when I saw the cloudless sky and the clarity of the moon I could not resist getting my scope( 8" f5 newtonian ) out to view it. There are many deep sky objects( and planets too ) that can be observed with a telescope but for easy access for many, the moon takes some beating. View by eye, binoculars or any sized scope and it's a fantastic.

I set up quickly in the early hours and had 20 mins of observing, it was like flying over the surface as in the apollo mission films. I could use 100x mag easily without any atmospheric issue, x200 just showing some disturbance. I pushed the boat out to x400 and glad I did, slight focus movement but overall sharp detailed images. The cast shadows of mountains and the appenines, the alpine valley was the best I've ever seen it. I'm pretty sure had I imaged it that the rille down the middle would have been visible. Had I spent longer my own eyes may have seen it.

I really reccomend trying to find a local astronomy group for anyone without access to telescope etc. Go on an observing night and even if it is just the moon you view it'll take your breath away.

Moon always seems to look better close to the terminator. Full Moon seems just "bland".

My favourite within the solar system is Jupiter or rather the Galilean moons of Jupiter - probably because when studying a course project we had to do was to measure the mass of Jupiter from observing it's Galilean moons. Collect data over time (and I did it just by eye sighting to a ruler held beside eyepiece - horribly inaccurate) and despite the observational inaccuracies curve fit enough data and I was staggered at how accurate the result came out at. So Jupiter's moons have always been special to me.

Ian

old_windbag
Posts: 1446
Joined: 19 Feb 2015, 3:55pm

Re: Meteors ...

Postby old_windbag » 12 Oct 2017, 5:55pm

Psamathe wrote:probably because when studying a course project we had to do was to measure the mass of Jupiter from observing it's Galilean moons.


A good little project. I have a few images I took of the jovian moons but jupiter tends to get overexposed as it is quite bright. So I took some correctly exposed images of jupiter then ones of the moons correctly exposed( well to my eye ). The plan was to then use photoshop to combine the images, a job I never completed! Anyway I have the images which is important. Nice thing about jupiter and its moons is that they are visible through moderate strength binoculars and you can see their changeing positions over a day or two. I imaged jupiter earlier in the year, just a random decision but I had missed a transit across the planet by an hour or two, that would have been nice to catch.

With regards to the moon, galileo attempted to measure the height of some of its mountains by the shadows they cast. Quite something for the time and equipment he used. I have a nice book of lunar images from the apollo missions, just a coffee table book, mine is the smaller edition for bookshelf but the larger book I had from the library is very nice to past time looking through with large fold out images too.

https://www.amazon.co.uk/Full-Moon-Michael-Light/dp/0224063049?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duc08-21&linkCode=xm2&camp=2025&creative=165953&creativeASIN=0224063049

old_windbag
Posts: 1446
Joined: 19 Feb 2015, 3:55pm

Re: Meteors ...

Postby old_windbag » 20 Oct 2017, 5:34pm

Orionid meteors to come to a peak this weekend on 20th. Might be worth a look on any clear night in early hours. An excuse to sit out in the dark or even go on a night bike ride to a dark site.


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