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Topics - Adam Rice

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Beginners Forum / Astronomical Binoculars
« on: December 30, 2017, 09:44:28 PM »
Hello. I have lurked on this forum for years, and the information has been a tremendous help.

I was looking at Orion astronomy binoculars for my 15 year old astronomy loving severly Autistic son for Christmas. I need to get a good idea of what to invest in within the next few days to, hopefully, get something in hand before the holiday.

We have a 10" Dobsonian and a Meade ETX 90, we find our selves using cheap department store binoculars most. I began thinking binoculars on a photographic tripod might be a good idea for more casual viewing, I love our dob, and we use it fairly frequently but I thought binoculars would be easy enough that we might use them more. Plus, it would be kind of neat to watch deer on our property, my back yard is 30 acres of open pasture and 60 acres of wooded area. So terrestrial viewing would be a plus, but only secondary.

I started poking around all the useful information here and I probably shouldn't be surprised the subject is more complicated than my initial impressions. The parallelogram mounts kind of discouraged me, I would like to keep this as simple as possible and with out spending a lot.

I am leaning towards the 20x80 with XHD tripod bundle, they have an attractive price point, but admit the 25x100 are awfully tempting. I understand that I need a tripod with a greater than 10lb limit to hold the 10lb optics. What tripod would I need? Is 25x100 overkill?

My budget is $500 and no more, preferably less.

Any thoughts or recommendations to help me expeditiously decide will be greatly appreciated.

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In my minimal understanding of AP, there is software that "stacks" guided video camera exposures together.

Would software be possible to just correctly stack match-up non-guided exposures? i.e. If you took a 10-min video of saturn with a stationary camera, can you stack the images, even though Saturn moves through the field during the frames?

mod: feel free to switch forum sections, but it seemed general enough for "general obs and astronomy"

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Beginners Forum / 12 inch Dob "Life time scope"?
« on: December 28, 2017, 12:21:22 AM »
Hello all. Thanks for all your initial support when I first posted regarding what telescope I should consider. I had so many replies and it was so helpful and welcoming.
Anyway..
I have since done plenty of research and had a lot of valuable input from many members and I think I have a few questions, I still havent seen answered when researching and want your opinions
I was initially really resistant to the idea of purchasing a dobsonian and was convinced that a GEM reflector would be a better choice. My reasoning initially was that tracking would be infinitely better, and allow for all around better viewing. I also had my suspicions that maybe they were telescopes more for beginners, or those on very small budgets and surely lacking.
I discovered this wasnt the case.

Many people dont like EQ mounts and end up not using them as often, and supposedly the design can make for uncomfortable eye piece locations. Most EQ mounts are just as heavy as a dob, and can take more time to accurately set up.

I also began to notice many people were making massive dobsonians, and seemed very knowledgeable and experienced. Why would experienced people, waste there time and huge sums of money with something that would have only supply mediocre views? They wouldn't.
I think that was the most compelling evidence for me, that there was something to seriously consider.

My initial post said my max expenditures for a scope would be $700. I have sinced pushed my budget to $900-$1000 after hearing about 12 inch dobsonian telescopes specifically, and hearing from some members how it was there sweet spot all around for aperture, portability, capability, and ease of use. The two scopes im most interested in are the 12 inch Meade Lightbridge and the 12 inch tube Zhumell.

I am leaning more toward the light brigde truss, as I like the idea of being able to disassemble the telescope for storage, and I like that the primary mirror cell can be rested horizontally, in storage as opposed to the the tube dob. I also like that I can leave the truss assembled and move it from inside to outside in two pieces, like a tube.

I am hearing from others that 12 inches is supposedly when details and features really start coming in of fainter objects, and that objects beyond the Messier catalog start to be a possibility. Past 12 inches supposedly, is very difficult to manage and set up, and isnt used as much simply because of this.

What do you guys think?

My real questions.
How is the 12 inch light bridge? Anyone with any long term use have any input theyd like to add? Havent seen any long term reviews of it  All other 12 inch trusses are $1500-$2000 and im not willing to spend more than $1000 for my first scope. I HAVE to draw the line there. I know eyepieces and accessories will be more.

If im willing to spend $900-1000 Is this the best bet for my money? I really liked the idea of people saying this was a ideal aperture. I would be very pleased if my first purchased telescope, would either be my "life time scope" or atleast huge step up from 8 inch 10 inch scopes, and the best choice.

Also this video spooked me about Meade quality of the Light Bridge https://www.youtube....h?v=RSdt7Qasz5A If you are on of those guys, and dont end up watching it (you know who you are   ), the guy takes out his primary and secondary mirror and claims that chips and scratches are quality issues, not his fault. Some things seemed suspicious about his claims, but as a beginner I really cant interpret his claims, and supposed proof that Meade has poor quality.

Thanks again for all your help, I really appreciate it and am glad people are helpful enough to give me sound advice, especially on big financial expenditures like this.

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Light Pollution Topics / Los Angeles LED Lighting Effects
« on: December 27, 2017, 11:12:17 AM »
New York City is going forward with the LED lighting I believe in 4300K range.  I believe LA updated to LED street lighting in the past few years.Are there any astronomers in the LA area who can comment on conditions since the upgrade?  Is the light pollution worse/same/better?I want to get an idea what to expect going forward.  BTW, I have signed the petitions, sent the emails etc to the city.thanks,lb

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Mounts Questions & Expirience / URGENT ::: iOptron CEM25 GoTo messed up!
« on: December 24, 2017, 06:05:46 PM »
Hello everyone,
I have recently got an iOptron CEM25 bracket.  I played it couple of times and GoTo control went to the items I wanted.
Last night I attempted using the bracket here in Boise, ID, it will a arbitrary places. .
Here's What I'm doing:
- point my bracket RA/polar axis to true north
- level my bracket
- assess authentic north, if needed, make alterations
- set/goto zero place
- slew to target
When I used my bracket in California (home place), it worked fine.  Slewed to sunlight absolutely fine, once centered, it tracked well.  Now that I'm in Idaho for eclipse, it is just stuck on some arbitrary places.  It keep saying that sunlight is -26.7deg that's not correct.  It's just stuck on the exact same position.  I synchronized date/time/location with GPS but didn't help either.  I attempted again after few hours, it still said that sunlight was -26.7 deg.  I eliminated hand controller's battery and put it back in expectation of reseting it but no use.  I'm clueless and want to track the sun for eclipse.  Please advise.
Regards, Deepanshu

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