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Everything posted by Simon Dunsmore
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Hi Folks, Could someone help to cool my overheating brain? Thinking about adding setting circles to a 10" dob when I finally get one. I saw the idea in the attached picture but for the life of me can't get my head around how that would work. If the scale is attached to the rotating part of the base, how would you know what degree you are moving the scope to? Unless, the scope was aligned to North (but wouldn't this have to be true north? and then the scale was fixed so that 0 degrees was at the front and centre of the base. I guess the other alternative is to sit the whole base on another separate base with a rotating circle, so that you could align on a known star and then turn the dial to the correct degree. This would then give you a fixed point from which to navigate?? The first option seems much easier but, as I say, I can't figure it out. Also whilst we are on the subject where would one find a printable scale to fit a Skywatcher 10" dob base? Thanks folks
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Hi Baz, Thanks! I guess that's why I couldn't find anything to do with a Wikey 😂 So in theory, this used in conjunction with a digital compass, would put you somewhere near the target if you roughly aligned the azimuth to North??? Cheers Simon
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Hi Guys, Sorry, back with another question. I've read a few older threads on here about using a Wikey to help with locating objects with a dobsonian. Please excuse my ignorance, what is a Wikey? I've googled and googled but can't find anything not even a seller of this mysterious device! Thanks for your help Simon
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Hi Joc, Thanks for your message. I think that you have hit the nail on the head. The solid tube makes sense on every level, price, collimation and weight, but I keep coming back to the size and portability of the OTA. Although I would be keeping it in the garage (my wife has some oversion to peering around a telescope to see the TV, where as I'm happy just to look at the scope😀) I wouldn't need to worry about doorways but getting it out to the car and onto the back seat is a concern. Light pollution is not so much of a problem but rather restricted views, consequently I will have to transport it to a better location. Plenty of food for thought from you all. Sadly no further forward in making a decision though. On another side note, is this the shroud essential? Thanks again
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Hi Folks, I appreciate that this has probably been asked time and again, sorry! So, I am in the valley of indecision here. I have a 130pds for AP and love it. I also enjoy visual and am after a 10" dob. I've narrowed it down to the Skywatcher 250px rigid tube and the Skywatcher 250 flextube. I have read just about every review on both scopes but just can't make up my mind. I believe that the rigid scope will fit in my car across the back seat and that the flexi will take up less room height wise for storage. But does one have an advantage optically over the other? Will the flexi version require collimation more frequently?? Can someone put me out of my dilemma 🤔 Ideally someone who has used both! Stay safe guys
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Welcome, After buying several scopes over the years, I now refer to them as cloud magnets! With so many people buying scopes, we don't stand a chance of clear skies 😂 Welcome to the hobby and the forum
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Coma corrector and 1.25 eyepieces
Simon Dunsmore replied to Simon Dunsmore's topic in Getting Started With Observing
Morning Steve, Thanks for your message. You are absolutely correct. I purchased the 130pds and the coma corrector for AP, and am really happy with it and the service provided by FLO. I did however, think that I may from time to time use the scope for visual as well, which I believe it is also capable of, if not its primary use. The combination of coma corrector, extension tube, barlow and eyepiece does, as you say seem to put some flex on the focuser. However!!! Thanks to the good folks at Flow, I have ordered an adaptor that not only shortens the set up but also allows me to use my dslr M42 T ring without buying a second M48 adapter. Thanks again for your help Clear skys Simon -
Hi Folks, This may be a silly question, but I just purchased a Skywatcher coma corrector for my 130 pds and I'm trying to figure out how to use it with 1.25 eyepieces. So far, I've assembled it by using the adapter that came with the scope but this seems to create quite a long array of pieces, by the time I attach a barlow and an eyepiece it's going to be very long! I've attached a photo of what it looks like now. Hopefully you can shed some light. Thanks in advance for your wisdom Cheers Simon
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Hi Fellowship Astro Enthusiasts! Just sorting through my kit and it struck me just how much stuff I've accumulated over the years. I live in quite a light polluted area and so I generally walk to a nearby field not far from home where there are no street lights, roads or houses. I tend to pull everything in a festival trolly, None of it is very expensive, working on a budget (and being a bit tight😁) I rigged up a plastic box with a red strip light from ebay to protect the laptop from dew and this is bungeed on to a little fold up stool. The chair was purchased from a fishing shop on offer and I recently purchased two blocks of foam to go in the old maplins flight cases (not yet completed). I have a Heq5 Pro goto mount and for this and the tripod I purchased two cobra cases from a music store. The only really purpose built thing is a bag to carry the OTA, I put this over my shoulder. And that's my kit, I don't always take it all, depends if I'm doing AP or visual. Of course I also have a flask and snack box!!! Be interested to see how you folks do it! Thanks and clear skies Simon
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Hi Josh, Great shot. I just received my 130pds two weeks ago and I'm really looking forward to First light. Sounds like I have very similar kit to you. I see that you're using the SWCC, how have you found this. Thanks for the inspiration! Simon
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Hi there, As the days are long and nights are short, I was considering taking a peek at the sun (when it comes out from behind the clouds). Has anyone used a 130 pds for solar viewing and if so, what filter do you use? I really don't want to blind myself!!! Looking forward to your responses Stay safe and clear skies Simon
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1.25 to 2inch adapter
Simon Dunsmore replied to Simon Dunsmore's topic in Getting Started With Observing
Hi, Thanks so much for your message and very kind offer. Looking at the picture, I'm not sure that there would be enough depth on the 2" part to hold the diagonal, but I could be wrong. Thanks again Simon -
1.25 to 2inch adapter
Simon Dunsmore replied to Simon Dunsmore's topic in Getting Started With Observing
Hi John, Yes, sorry the link is https://agenaastro.com/blue-fireball-1-25-2-eyepiece-adapter.html I've been giving it some thought though, I'm a little worried about leverage on the draw tube. If I add the adapter, diagonal, barlow and eyepiece. I'm leaning towards keeping the 2" diagonal for my existing scope (skywatcher 130 pds and 72ED) and biting the bullet and buying an Altair 1.25 dialetric diagonal for the Mak. BTW, I have a 2. 5x GSO barlow on order, do you think that this will also suit the Mak? Cheers Simon -
Hi, Quick question, I have a lovely William optics diagonal. I'm looking to buy a Skywatcher Skymax 127. The problem is that the diagonal is 2inch and I believe the draw tube is 1.25. Can I use something like this as an adapter as long as I stick with 1.25 eyepieces? I'm pretty certain if I use 2inch eyepieces I'll get some vignetting??? I'm also aware that I will need sufficient back travel to allow for focusing. Any wisdom on this would be appreciated. Cheers Simon
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Hi, New to this imaging business. I really am a noob when it comes to ccd imaging. I've imaged DSOs with the same set up with a dslr. OK, so I have the following set up. Skywatcher 130 pds, Heq5 pro goto mount, QHY5-II mono camera. I plan to start by imaging the moon and then move on to planets. Here is my question, how does all the kit filter wheel, camera, barlow etc fit together? Do I need specific kit to fit together or is it all compatible? Thanks for your help Simon
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Hi Folks, looking for a little advice, looking to image some close ups of the moon/planets with my 130PDS and have narrowed it down to two choices: Revelation x2.5 barlow https://www.rothervalleyoptics.co.uk/revelation-astro-25x-barlow-lens-125.html Explore Scientific X3 barlow https://www.harrisontelescopes.co.uk/acatalog/explore-scientific-3x-barlow-focal-extender.html#SID=564 I have a QHYII-5 Mono camera that I usually use for guiding when imaging DSOs The Revelation is roughly half the price of the explore scientific, I'm wondering what the difference in quality would be?? Thanks for your help Simon