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Messages - Jose Lukeson

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1
Mounts Questions & Expirience / Re: Tripod Spreaders are awesome
« on: February 09, 2018, 05:34:31 AM »
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If I can come up with a suitable material, I might add a 'fence' around the tray/spreader just for safety sake, but actually I rarely put anything too fragile nor valuable on the tray.
You could cut some thin strips of wood and laminate them around the spreader. There will be some work involved but it would make the spreader more useful. 

I'm thinking maybe some black Sintra strips might work, or something similar. If I end up adding anything, I certainly don't want it rippling or otherwise not fitting well. When I made it, I thought about drilling 1.25" and 2" holes in it for eyepieces, but in the wet environment where I live it's all too often the kiss of dew-death to leave eyepieces exposed. Plus, I have only a 1.25" Forstner bit and didn't feel like buying a 2" bit for half a dozen holes. 
I hear you, I live in a wet place too. Dew is pretty cheap around here due to the laws of supply and demand.

2
Reflectors Telescopes Forum / Re: The Z10 delux is a bargain right now!
« on: February 09, 2018, 03:03:50 AM »
The fan is very good, no need to replace. The focuser is very good,
no need to replace. To answer questions from post #2, the price has
been extremely low for years but availability of the Zhumell scopes has
been hit or miss. All models were unavailable or even discontinued for
a period but fortunately they made a comeback....for how long who knows??
And you should use the scope for awhilebefore doing a lot of mods. Do the cheap
and easy mods first if anything, like replacing the springs and secondary
adjustment screws.

3
Well, that's what stellarium is for. Turn on the DSO button, then see whats all up. You can even filter it so it only shows messier objects. m42 comes up around 10:00pm.

4
Eyepieces Questions & Recommendations / Re: Explore Scientific 30mm 70deg?
« on: February 03, 2018, 08:22:08 AM »
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Followup question: We know that the GSO Econodobs (Apetura, AstroTech and Zhumell) include one of these 2 inch 30mm 5-element Erfles as theirstandard equipment low power eyepiece.Would it be better if they came with a 1.25 inch 25-32mm Plossl instead? Initial views would in many ways be better although with a 1.0-1.3 degree field instead of the 1.7 degree field of the 2-incher. Do we want quality or quantity?Oh and by the way, we are NOT all adults here. The junior members of my club (6th, 7th and 8 th graders) are on this site, and they don't need to see words that produce nasty mental images.Thank you.
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Followup question: We know that the GSO Econodobs (Apetura, AstroTech and Zhumell) include one of these 2 inch 30mm 5-element Erfles as theirstandard equipment low power eyepiece.Would it be better if they came with a 1.25 inch 25-32mm Plossl instead? Initial views would in many ways be better although with a 1.0-1.3 degree field instead of the 1.7 degree field of the 2-incher. Do we want quality or quantity?Oh and by the way, we are NOT all adults here. The junior members of my club (6th, 7th and 8 th graders) are on this site, and they don't need to see words that produce nasty mental images.Thank you.
GSO makes a 32mm Super Plossl that would be a better choice to include in my opinion. But getting these eyepieces to 60 degrees would clear up a lot of the edge issues too. What is the point of 70 degrees if it is just mush anyway?

5
Reflectors Telescopes Forum / Re: How much more will I see?
« on: February 03, 2018, 04:32:23 AM »
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Oddly enough, the CPC1100 is a GREAT scope. I enjoy it very much. However, 12 years ago I owned a 20" Obsession for 2 months and used it twice, for very few objects. My career took off and my kids were young. Sold the scope and left the hobby for 12 years. Setting up the 20 was just as easy as the CPC1100. Neither can really be used at my home because it is a townhome with limited front and back space. The CPC1100's heaviest piece (fork and OTA) weighs about 70 lbs. Even more with the case. So, I could easily handle the physical size and weight of a large dob.

However, I have fallen in love with is the GOTO feature of the CPC1100. In four hours, I was able to cruise 25 objects in Scorpius and Sagittarius, Mars, Saturn, and the moon. Since I like to see an object for 5 or 6 minutes and then move on, I am wondering if a Dob with DSC's would work well enough for me. I was thinking about the Orion XX16G due to its built in GOTO capabilities, but wonder if I might be going to small. Should I get the GOTO, or find a larger dob with DSCs?

Also, at least for now, I plan on keeping both scopes. The club I joined has outings twice a month to fairly dark sites. This is the only time I use my scope. My wife is the greatest and will make room for both scopes!

You could consider a push to Dob in that case. GoTo's can only slew as fast as the motor will allow. Push to scopes go as fast as you can push them. I have seen upwards of 170 objects in one night (< 3hours) on several occasions. 'Course not 5-6 minutes each!!

6
Reflectors Telescopes Forum / Re: Fagen mirrors?
« on: February 02, 2018, 10:32:39 PM »
My Cass primary was scraped or gored in several places at the edge; never found out how or why, it was properly shipped in a good case. But the coater denied it so I carried phonograms of the mirror around to all my lectures and showed them to thousands of telescope users, and told who done it. That was a long time ago and his business was not helped for sure. Richard could not fix it so he did a new one at f/7 and I got a ladder.

Still have it, but stored away now. One optician told me it has a zone, but I could never see it in tests. There was some animosity between the two opticians. Fagin did excellent mirrors below 16”, but he fell short on anything larger. Nothing against Richard, we were friends and lived close by. Haven’t seen nor heard from him since the last 1980’s.

7
Light Pollution Topics / Re: Your light pollution? Poll?
« on: February 02, 2018, 09:57:15 PM »
Red Zone but only 3 miles west of White Zone.

Jim

8
General Astronomy & Observing / Re: Commute from darker skies?
« on: January 31, 2018, 12:23:15 PM »
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I will be moving about 80-100 miles east of Toronto in the fall. Since I do not work commuting is not an issue. I'm moving because of two kinds of pollution: First, the white ++ skies here 8 miles north of the city centre will become green or blue on the LP map.
Dave

I'm looking for a new best friend

Eric

9
Mounts Questions & Expirience / Re: EQ6-R Pro vs. iOptron iEQ45 Pro or ?
« on: January 31, 2018, 09:37:46 AM »
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I ended up getting the Atlas Pro AZ/EQ-G. Very impressed with the build quality so far. Haven’t had the chance to get it out under the stars yet, but I hope to very soon.

Congratulations!

Making me happy too, someone else getting almost same my mount, so i am waiting to see your wonder images by it, encourage me please.

Now, time for you to download EQMOD, get it connected to PC and have fun!

10
ATM, Optics and DIY Forum / Re: Sleeks
« on: January 31, 2018, 02:23:33 AM »
If your new to making optics, you might not understand how clean you need to work to prevent sleeks and scratches. As for the beeswax trick, it was told to me by a couple of pros that make optics for space missions. As they said, one sleek can ruin an $10K or more element since the tolerance or so tight and polishing thru it can make the part out of spec so they still use that trick.

       - Dave

12
"It could be that city slickers moving or retiring to rural areas are carelessly bringing their city lighting habits with them."

I agree with that. I guess the solution is to let them carelessly move into the region that has light pollution ordinances in place. Before they arrive in mass and the problem get's too big and the local, small town authorities can be more easily influenced (I think.) Rural folks are likely more understanding.

There is a green zone not far from my house. The problem, maybe like you describe, is the entire area is dotted with small outposts with bright lights. Not much overhead, but boy, when you look around it's hard not to see some cement factory or other facility standing alone each with it's own little light dome. Was thinking to set up out there, but cannot escape the very bright direct lighting that can cross open fields and a river bed.

A group of land development entrepreneurs are building an entire stand alone city on pristine land not far from here, too. It's well into a green or blue zone. An industrial park, housing area, schools, shopping district. It's being billed as a place to be, to live, etc. Maybe a bedroom community for the big city (Manila) a few hours down the expressway. As this thing develops, I know another huge light done will develop with no concern for light pollution. As they build it, I will be resettling in the opposite direction to a less developed area. As a renter, I have that option. No big deal, really.

13
or you can roll your own shroud. the problem is cutting the disc in the back the correct diameter to wrap the shroud aroundbut a bandsaw and disc sander should get you there.

14
Eyepieces Questions & Recommendations / Re: Eye Relief
« on: January 26, 2018, 05:50:16 AM »
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I would assume that most comments that reference eyeglasses are made with the idea that the user is wearing them while doing visual astronomy... I wear glasses (trifocals), but take them off when doing visual astronomy...

Oh... I prefer a lot of eye relief... my eyepieces are 15mm with the exception of 2 which are 10mm for a planetary zoom and 19mmfor one of the wider ep's

I take my glasses off too, or rather, flip them up onto my forehead using an elastic band.

I like 12-20mm eye relief. I require a good eyecup if 20mm though. The 9mm Morpheus with 20mm eye
relief and a flimsy eyecup didn't work out for me. Getting a stiffer replacement eyecup from Agena fixed
that problem.

15
Light Pollution Topics / Re: Introducing DarkSiteFinder.com
« on: January 26, 2018, 12:00:10 AM »
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<p class="citation">QuoteWould their be any reason why the light pollution map wouldn't show up on an IPad? I can get the map ( underlay) to show up fine but no light pollution map.

Any thoughts? Or is this something you already are aware of? I would love to take a look at your maps!
Sorry I didn't really optimize the website for mobile devices. I don't have an Ipad to test with either. Maybe someday I'll learn how to build an app though. [/quote]

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