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Posts Made By: Rod Kaufman

December 27, 2015 02:58 AM Forum: ASTRONOMY

Westways AAA Autoclub Magazine

Posted By Rod Kaufman

This month's issue from the auto club AAA magazine has feature articles on dark sky sites in our national parks along with images of the milky way and various scopes in the grand canyon and elsewhere. Check it out...

January 12, 2016 04:21 AM Forum: ASTRONOMY

New Explanation For The Wow Signal

Posted By Rod Kaufman

Awaiting confirmation:
http://www.nbcnews.com/tech/innovation/infamous-wow-signal-space-may-be-comets-not-aliens-astronomer-n494381

June 14, 2016 01:09 AM Forum: ASTRONOMY

Only a Third of Us?

Posted By Rod Kaufman

http://www.cnn.com/2016/06/11/health/light-pollution-atlas-milky-way-irpt/index.html

June 21, 2016 07:14 PM Forum: ASTRONOMY

AMA Issues Strong Warning On Street Lighting

Posted By Rod Kaufman

The organization has previously cautioned the public about the health risks associated with light pollution but this is one of the strongest ones I've seen to date:
http://www.cnn.com/2016/06/21/health/led-streetlights-ama/index.html

April 11, 2020 03:13 AM Forum: ASTRONOMY

Barlow lens and contrast

Posted By Rod Kaufman

I don't believe you'll see an increase in contrast but along with an increase in the magnification of the eyepiece you're using in your fast OTA, you'll likely see a decrease in the comatic aberration at the edge of the field, similar in effect to a coma corrector.

May 19, 2021 06:38 AM Forum: ASTRONOMY

First Light with a Mewlon 210

Posted By Rod Kaufman

I'm not a Mewlon 210 owner and while I enjoyed reading your review, I am a bit confused by it. At first it appears you purchased it from Anacortes and then it seems you got it from Texas Nautical wherein you have an issue apparently because they didn't issue a credit of some sort for a missing 1.25 diagonal. Looking at the TAK vendors, including TAK of America, it's evident none of them include a 1.25" diagonal as standard equipment. So, it's not clear to me where you purchased the scope and why you think the diagonal is an included accessory. Did you subsequently purchase a diagonal or observe straight thru?
I'm also not sure why you might think the scope doesn't have the snap in the contrast you think it should based upon one night. Seeing and transparency can be important factors here and one or both may have affected the larger scope more so than the smaller one. That seems to be the case when you say you could get the focus where you wanted it but then it would soften again. That sounds more like seeing and less like a fault in the scope. While I'd assume the collimation is where it should be, I'm not sure I see that from your report. But with a known 32% central obstruction, I'd expect some loss of contrast.  There's an interesting discussion on the collimation of the unit in this thread: https://stargazerslounge.com/topic/350784-an-idiots-guide-to-the-takahashi-mewlon-210-and-250/

March 27, 2020 11:44 AM Forum: Beginning Astronomy?

Cleaning Optics

Posted By Rod Kaufman

http://www.televue.com/engine/TV3b_page.asp?id=103

January 7, 2021 09:00 AM Forum: Beginning Astronomy?

Noob ready to buy first scope

Posted By Rod Kaufman

For a newbie, an 8 is great!

February 5, 2021 10:46 AM Forum: Beginning Astronomy?

Please help us!!! . Moving to a new place with great skies. Time to unleash our desire to do astrophotography.

Posted By Rod Kaufman

Although I personally don't do imaging, but spent many nights observing near a semi-pro who did, I think Greg's advice is quite good and one would do well to follow it. 
Go with an apo refractor first. Check out Ed Ting's video on this one: https://www.youtube.com/watch?v=sE18PBQRzDQ&t=2s

July 23, 2023 10:29 PM Forum: Beginning Astronomy?

Meade Go To power supply

Posted By Rod Kaufman

Originally Posted by Ernest Stone
I purchased a Kendrick 12/18vdc field power supply. It came with a cord specific for Meade. Said cord would supply 18vdc. Looking for seasoned advise... Will I regret plugging in my XL85? All specs read 12v and as always, I ask three people, I get three opposing opinions. 1,000 Thanks in Advance! 
I doubt that using such a power source would be a problem but have you tried calling Meade customer support?

https://www.meade.com/content/support