wookie1965

Tal 100rs, Herschel Wedge, Polarising Filter, Celestron zoom and a S21

Nice one Neil now collimate my Tal

A warm welcome back to SGL

I am going to try my best to get there would love to meet up with people, says 2.5hrs drive to get there.

A warm welcome to SGL 

1 hour ago, paul mc c said:

That's exactly what I had in mind...do you have a link?

Paul 

https://www.ebay.co.uk/itm/175828443582?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D20230811123856%26meid%3D31e4a123f3454e9dac3b8fb8691e6837%26pid%3D101770%26rk%3D1%26rkt%3D1%26itm%3D175828443582%26pmt%3D1%26noa%3D1%26pg%3D4375194%26algv%3DRecentlyViewedItemsV2&_trksid=p4375194.c101770.m146925&_trkparms=parentrq%3Aea5a902218c0acf322e9d965fffffe1e|pageci%3A8532f909-ae54-11ee-95cb-76e2354866e4|iid%3A1|vlpname%3Avlp_homepage

There you go.

Paul

I used this when the rings were to big for my 5" Refractor You can get non adhesive ones. 

As long as the secondary is in the right place (small mirror) you will only need to tweak your primary (big mirror), if you don't drop or bang the tube you should not need to touch the secondary again. 

https://www.bresseruk.com/Astronomy/BRESSER-Extension-Tube-25-mm-for-2-5-HEXAFOC.html

Just now, Neil H said:

Look at post above Paul

I did its blank on my PC

7 minutes ago, Neil H said:

The 127 came with 2 extension 1 long and 1 short that's the link to one of them 

No link posted Neil

I've got this I need to move. 

Only seen it once which was early last year with my 5" Meade refractor with a barlowed 6mm and putting Sirius just out on the edge of the FOV.  I wish I had not sold that now, 1 of two of the biggest mistakes of my astronomy hobby.

A warm welcome to SGL 

I have had one good session since June with health and weather but this winter from October to today has been rain rain rain. 

According to the BBC weather app next clear sky is the 9th from 5pm until 10pm but I will not hold my breath. 

14 hours ago, Stu said:

It’s been rubbish I agree, but fingers crossed for 30th. Will be interesting to see which timings turn out to be correct, if we do get to see it 🤞

According to the BBC weather app forecast is light rain showers the next clear spell is Tuesday the 9th from 5pm until 10pm 

If I had £500 I would of bought this. 

A warm welcome to SGL 

Not all astronomy related but a good haul. 

Every astronomy event this year has been clouded out as far as I can remember. I have not seen one meteor shower this year. 

A warm welcome to SGL 

Put a piece of paper opposite the focuser (White) then put a piece of card inside the tube to block the primary mirrors reflection. Then rotate the secondary (back off the three collimation screws a tad) get it so you can see a full circle. Take the card out now using the 3 screws small adjustments get the primary mirror clips all the same.  Thats the hardest part done unless you drop or bang the tube you wont need to touch this again. Now using the three screws on the primary centre the dot in the donut. Once you have done this a few times it gets easier like riding a bike.

Take a look at this site.

https://web.archive.org/web/20200223041214/http://www.schlatter.org:80/Dad/Astronomy/collimate.htm

A warm welcome to SGL

On 10/01/2018 at 10:19, Ganemedes said:

    The only disadvantage with the build is, that in case of setting the telescope out in the field on no solid ground (tiles, cement), the leveling feet will submerge into the ground. t

The same problem i had a moist night with my tripod. The result was bad leveling of the telescope with valuable time lost from the observation. Just a heads up.

    Nevertheless, your idea and build is really smart. When i have the time (and sources) i will try building something like this.

 

Kyriakos

Cut out 6" x 6"  pieces of wood place the wheels on them when setting up that will stop the mount sinking.