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Topics - Elijah York

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Good Morning All,

I received my C90 and am impressed so far with it for Grab and Go Purposes for Land and Sky viewing. I am now wondering if there are any benefits(image quality) to be realized by upgrading to a set of different diagonals for Land and Sky use.

If so, can you recommend some models of diagonals to consider?

Thanks in Advance!


General Astronomy & Observing / Anyone else use a cart?
« on: December 30, 2017, 11:05:27 AM »
I'm always interested in seeing the ways that people transport their gear.

If you use a cart, wagon, DIY contraption, sherpa, or other, please post a pic or describe it.

Here's mine. The load is hard to make out in this photo. It is carrying the following items:
Folding Table
Folding Chair
Atlas Mount + weights
10" LX200 OTA
Orion ED80
WO Zenithstar 80ED II
Eyepiece Case
Star Chart Book
Laptop Computer
I pull this down the sidewalk a half mile from my apartment to a small park. I have to do this alone because my friends and family are too embarrassed to be seen with me.

Beginners Forum / Messier Marathon tips?
« on: December 30, 2017, 05:17:28 AM »
Are there any tips that some of you Messier Marathon vets can share with those of us who do not have as much experience? For example, the list I used last year put both M74 and M31 a bit far down the list and I missed finding them altogether. I had to stop my search after a few hours so only found about 15 objects during my first-ever try last year, but would like to get them all this year if possible
Any tips would be appreciated.

Eyepieces Questions & Recommendations / ES 82 degrees 14mm vs. 18mm
« on: December 30, 2017, 04:53:33 AM »
I've read a few comments on these two & would like to know what do you think? I like the 18mm as a 2" eyepiece but some say why a 2". The 14mm has gotten its pros & cons as a 1.25". I actually like the 14mm because of little more eye relief & a biggereye lens. In fact the 14mm eye lens at the very least tied with the 24mm, but I just might give the nod to the 14mm making it 2nd to the 30mm.


ATM, Optics and DIY Forum / George's Telescope: The Finder Scope
« on: December 27, 2017, 09:12:23 PM »
After a somewhat extended and unintentional sabbatical, I am back to working on the telescope project. I'm still refining my plans for the mount but in the meantime I wanted to make some progress. This round was making the finder scope, or rather, re-making it. After much (more) research, I decided on a 9X50 Right Angle Correct Image finder.

I decided that the easiest way to go would to buy a relatively inexpensive finder, deconstruct it and remake it with wood components. I bought an Orion 9X5 Right Angle Scope, took it apart and remade most of it out of wood. I ended up modifying and using some of the threaded parts from the original scope as the threads are far too fine to cut into wood.

Good Evening - back in April I bought a CEM25 at the Rockland Astronomy Club vendor show. I've had it out a number times now but have had little luck getting it aligned and able to actually locate objects. Perhaps I'm missing some fundamental thing . . . .
I did set the time and date . . the hand controller forgot the time / date this evening so I checked the battery . . it is fine btw. Not sure why it lost the time/date as the battery is OK.  Anyway I updated the time / date properly and found Polaris in the mounts "peep hole".
I entered two star alignment and was able to point the scope at Dubhe then Merak while in the alignment routine. It said it saved their positions OK. Anyway I entered "select and slew" and figured I would ask it to find M81 / M82 since they were close by the stars I aligned with.
Well, to my surprise the mount started slewing fast all the way to one side until it ran itself into the base of the mount. I did not know if there
was an ABORT sequence on the hand controller so I ended up unplugging the unit from the power cord. The telescope mount sounded very unhappy about that . . . I was caught a bit by surprise and did not power down as quickly as maybe I should have.

After I recovered from that crash, I powered the mount up, loosened the tension adjusters and locks and aligned everything in the zero position and after tightening used the zero position reset function. I tried aligning again, this with Dubhe and Mizar/Alcor which it accepted again ok. I asked it to find Alkaid and again it lurched to the side nowhere near Alkaid. This time I was more prepared and was able to switch it off before it went too far and hit something.
I was going to try a third time but it got cloudy . . my observing time eaten up fiddling with the mount so I was a bit bummed out.

During the process I asked it to slew to Jupiter at one point as it was clearly visible behind me. It gave ( - ) coordinates I guess it thought it was below the horizon? Odd since it was plainly visible. Again the time was set correctly, and the GPS was on and it looked to have my proper coordinates. I'm baffled and honestly a bit sad that I can't get this to work properly. Any tips and suggestions appreciated : (

Beginners Forum / Is a Red Dot Finder necessary for my telescope?
« on: December 27, 2017, 12:14:14 PM »
I have a Celestron Evolution 8 and the RDF went bad in the first month. Celestron is sending me a replacement, no charge. Will I ever really use it since the scope aligns itself?

ATM, Optics and DIY Forum / multiple mirror telescope DIY?
« on: December 24, 2017, 03:48:20 PM »

Look at such telescope mirrors configurations:
You see, themoderntelescopes are made of multiple mirrors.

Can you think is it feasible, at DIY level, to earn a telescope utilizing multiple mirrors?

In your opinion, what is the main issues of a project like this?

Simple example: buy two 10 inch mirrors and put them onto a wood support,
One at a particular distance in another

Then with an intervention process, alignthemto geta perfect orientation

Can you think in such a way you could get a telescope with enhanced resolving power?

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