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Messages - unmoharib

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121
Mounts Questions & Expirience / More I use the G11 the more I like it
« on: December 30, 2017, 06:25:37 AM »
I've had the G11 for almost a year and a half and it just works. I used to be happy with 3 hours of imaging, now if clear I go for as many nights as I can. Last 2 images I got 23 hours and 55 minutes on 2 objects. The mount just chugged along. Nothing nicer than going to sleep and seeing 6-7 hours of data and the mount parked when you wake up. And the G11 still looks pretty **** awesome even for solar Attached Thumbnails

122
I've no knowledge of commercial law but I would have thought that Amazon purchased the "glasses" in good faith prior to selling them to the public. If they were inadequately manufactured surely the blame should rest with the manufacturer?
I would certainly feel sorry for those affected if the claim is genuine. Looking back over many years of experience I don't recall many, if any, reports of significant lasting eye damage from eclipse viewing despite the very dodgy methods used before modern safety requirements came into force.

123
Beginners Forum / Re: Good refractor on budget for planetary observing
« on: December 29, 2017, 10:01:59 PM »
For a good planetary refractor i'd stick with something F/8 or more

The one that gets the best reviews in that range is the Celestron Omni XLT 102 (not the Alt/Az F/6.5 version, but this one

The nice thing about the CG4 mount is you can get a drive for it and track objects for about $100

https://www.bhphotov...2,&A=details&Q=Also the CG4 mount is an EQ mount, but it has good bearings on both axes. You can also coonvert it to Alt/Az in about 10 monutes if you want to go that route. Numerous threads on that subject, but basic polar alignment to track objects is pretty easy

Jon

124
Beginners Forum / Re: $300 scope for 10 year old
« on: December 29, 2017, 09:10:31 PM »
>IN MY OPINION

GOTO is like computers or cell phones or 24/7 television or PS3s and X-boxes. They're ubiquitous to children. Bind the scope to a computer and you're half way there with the kid. Keep it something old fashioned and it's an almost guarantee the scope will become closet art.

When I was his age, I thought **balsa plane models were cool, but they just weren't the same as my generations' plastic models. I even built a few dozen, but again, they didn't hold a candle to the ones my generation enjoyed. I also got far more of a kick out of my HO cars than HO or N gauge (Or Lionel) trains, even if I thought they were really cool. In fact, the cars and track were what I purchased with my lawn/etc money, not trains.

If GOTO keeps him coming back, then he may mow lawns and shovel walks and rake leaves and save for a better scope (or harp at you to get him one hahaha)

**Balsa planes were the things my dad's generation thought were really cool, especially since the new kits had all sorts of improvements... when he got into it, you bought sheets of balsa and plans and had to lay the plans over the balsa to find the cuts...they weren't printed or prescored...you even had to carve your own wheels and propellors and form any wire pieces from raw stock.

125
Light Pollution Topics / Re: Led Lights
« on: December 29, 2017, 09:44:07 AM »
They have a shield so the light only points down. The light is very directional from them also. The lighting for our purpose is better than the old lighting that we have. It will take quite some time to complete the conversion.

126
Maybe something to do with the clutch?

127
Beginners Forum / Re: beginner eyepiece education and reference suggestions
« on: December 29, 2017, 04:43:30 AM »
Something I have recently learned as a newcomer to this hobby is the function of a zoom eyepiece. I defer to the experts but I understand a zoom eyepiece allows you to cover a wide range with a single one. I have one coming in the post as we speak.

128
Beginners Forum / Re: meade light bridge 130
« on: December 29, 2017, 02:08:33 AM »
You could go a long, long way using just the two eyepieces that come with the scope plus a 2X Barlow. Yes, it may be possible to fiddle with some Barlows to change their magnification, but it's probably not worth the hassle. If you really like the scope, it would probably be worth investing in a few higher-quality eyepieces somewhere down the line.

I'm a little skeptical whether a piece of plywood atop a surveyor's tripod will be stable enough, but it certainly can't hurt to try. I strongly recommend sitting in a chair while using this telescope. In that case, I've had pretty good luck putting the scope itself on another chair of similar height.

With minimal woodworking skills and equipment, you could build a table that would probably be more stable than the surveyor's tripod. Surveyor's tripods are quite good as tripods go, but the weak point of your design is that all three tripod legs come together almost to a single point before your platform branches out again to the plywood. It's inherently more stable to attach legs to the plywood itself.

129
There can be a lot of problems that cause this. Maybe you are expecting too much from your telescope. Your focus might not be spot on. The transparency could be lacking. Your collimation could be incorrect. How do you collimate your telescope? How do you check to make sure it is in collimation? The focuser might also be misaligned. It would be better if you could give us more information on the problem.

P.S. Based on your images, it looks like your telescope is out of focus. Is that from your star test, or from your regular viewing?

130
ATM, Optics and DIY Forum / Re: end grain balsa composite question
« on: December 28, 2017, 05:31:31 AM »
Hello,

If you are glueing wood, use wood glues (white or yellow, depending on your local), they are very good.
Note that some of the glues are waterproof (mostly), some are not. Choose the waterproof ones.
They are also some fast and some slow set. In your case, fast set is probably better.

I am however not sure about your construction itself.
Do you plan to have 1 layers of birch with balsa, with end grain following the thickness axis?
If this is the case, you need to realize that end grain wood gluing is usually not very strong. so be careful.
I would suggest not doing it.
If you want 100% full balsa, base, I would suggest more layers of balsa, with the grain parallel to the birtch plan, but placed at a 90° angle (right left and far near orientations).

Have you considered 'honey comb' like structure? using a light, but more resistant wood like poplar on the side and gluing poplar pegs regularly in the inside square? This might allow you to generate a light but resistant structure.

Cyrille

131
Beginners Forum / Re: Equipment in cold weather
« on: December 28, 2017, 12:13:43 AM »
Get yourself a flexible dew shield and a dew heater system. Your EP's will frost up, too, you know, so you'll need more than one dew heater strip. they run on 12v and you'll need a batt or batt charger to keep it going. Good luck!

STARKID2U

132
Beginners Forum / Re: Are solar filters useful?
« on: December 27, 2017, 09:33:58 PM »
Dang I figured that the glass would be much better. I am glad that I posted. I don't a have a 10", but If I upgrade that's what I was going to buy probably. Ha I think I'm getting that aperatus sickness that you all have been talking about. I figured that I would use some foam to fit it to my 130mm for now.

133
Beginners Forum / Beginner dob Recommendation is almost always 8", why?
« on: December 24, 2017, 10:43:31 AM »
Hi guys

All over the net when I see new folks searching for a dob telescope everyone urges the 8".  I know the cost to aperture ratio is decent but what about the usually forgotten 6" dob?

I've owned a 6" and an 8" in precisely the same time.  Had them both cooled and aimed high.  I had the luxury of directly comparing them.  I had 24mm Panoptic X2 so every scope had one.  (I had been holding them for a friend who purchased them used for binos).

I have to say I did not see much difference between the two scopes concerning viewing more in the bigger one.  I'm in the city, so perhaps at a dark site it'd have been apparent?  What I did notice is how clean the opinion was in the 6" dob, filled with richness and contrast.  Not to say the 8" was awful or anything but as hard as I tried to like the 8" longer, I ended up enjoying the 6" more.

The 8" isn't a monster but when it came time to transport them in the 6" was easier, to me that the opinion was better, it looked considerably smaller although it's the same focal length.  And it was cute as a button in my living space.

I feel the 6" needs some love.  It brings a lot to the table in a much better price then the".

Last, there was something magical about the 24mm Panoptic from the 6" F8 dob.

134
Subject describes it all.  Here is the chart I am trying to add to my touch:

Http://www.cleardark...key.html#appearI tried using this code from that web page:

<a href=""><a href=http://www.cleardarksky.com/c/AbrnLstNYkey.html&gt; [/url][/url]
I can't seem to get the chart to show up, only the code.

135
Light Pollution Topics / What are my rights?
« on: December 24, 2017, 03:53:54 AM »
Hi Folks, A while ago I moved into a brand new subdivision, it was partially chosen because it had dark skies.  Lately the land next to me was sold along with a new owner moved.  In short order the brand new neighbor started adding exterior lights to their own property.  My property is bathed in their mild.  What are my rights?  Can I need that they aim the lights to only shine in their own property?  Or am I simply out of luck?  ThanksDisgruntled.

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