John

You should get good views of your targets of interest with both those scopes. Patience is needed with the planets though, because they are not always in favourable observing positions. Photos can be misleading because the camera can often capture more than the eye can see. Have a look for sketches done with similar scopes for a more accurate guide to what might be achievable visually.

For the Sun you must use a suitable solar filter of course. Apologies if you know this already.

I've been doing a few measurements of where eyepieces reach focus. Of mine, the Svbony 3-8 zoom is the one that needs the most inwards focuser travel and the TV Panoptic's (and other TV par-focal group "b" eyepieces) need the most outwards travel. With the scope that I have been testing with (a long focal length refractor) the range of focuser travel I needed to accommodate the needs of both extremes was ~16mm when the scope was focused on Polaris.

1 hour ago, tomato said:

There is a 16” Explore Scientific ultra light Dobsonian in the classifieds, it is a truss tube design but there aren’t many 16” dobs out there which are lighter and more compact. I have a 16” SW flextube but it is not the easiest scope to to move around.

I'm not sure that the ES Ultra Light's are any lighter than the Skywatcher equivalents 🤔

It's worth checking.

2 minutes ago, glafnazur said:

Thanks for the link, I'll have a go at finding some of them.

Good luck Dave !
Nice avatar by the way - one of my favourite albums 🙂

1 hour ago, dweller25 said:

I am confused now, I thought you wanted the Newtonian for planetary imaging, in which case the longer focal length and smaller secondary of the F/6 version should make it the better choice.

 

Just my thoughts as well 🤔

I enjoy Leo for a number of reasons and a good supply of relatively bright galaxies is one of them 🙂

In the area of the lion's "neck" there are a couple of notable groups, A close pair from the Arp 94 group just "behind" Algeiba are visible in scopes as small as 4 inch on a dark night and a couple of the Hickson 44 group can also be spotted a little further up the "neck". Add the groups in the lion's "backside" and good old NGC 2903 just off the tip of the "nose" and you get some rich galactic hunting with small to medium apertures. Also good practice before diving into the treasures of Coma Berenices and the Virgo "bowl" where getting lost amongst the distant glows is entirely possible 😀

Nice piece on the Sky & Telescope website on the Leo fuzzies by Bob King from 3 years back:

Exploring Bright Galaxy Groups in Leo - Sky & Telescope - Sky & Telescope (skyandtelescope.org)

Was your 16 inch the Flextube that used to come to the SGL star parties a few years ago ? 

I can recall looking through that one and thinking that the views were lovely but the scope certainly very far from "grab and go" 😁

At least it matches the kitchen worktop now ! 🙂

27 minutes ago, Jim L said:

You got me. I can claim at least one victim of my little jape; my wife. She’s visiting our grandson, Achilles, and I texted her:

It did not go super smoothly, indeed! I’ll wait to see how long it takes for her to catch on. Maybe throw in a few more disasters for good measure…

Did I catch anyone else out there, if only for a moment? I’m looking at you, John.

Guilty as charged - I took it at face value because it was posted well before the dawning of the 1st of April here in the UK 🙂

Jon Isaacs on CN certainly seems to be "fully engaged" with the topic ! 😁

Tegmine close pair: ~4 inch to get resolution, ~5 inch to split 🙂

Hi,

The only way to know for sure that they are meteoric is to get a sample from them analysed by a recognised meteorite laboratory such as the Natural History Museum in London:

 Meteorites | Natural History Museum (nhm.ac.uk)

In the USA, the USGS provides the following advice:

I think I found a meteorite. How can I tell for sure? | U.S. Geological Survey (usgs.gov)

1 hour ago, Stu said:

I wonder what the date is today? 🤣

That was called on CN but the OP is still playing it straight there 🙂

Can you actually see Antares from Scotland ?

That's a challenging double as well. I've done it a couple of times from down here in the SW UK, as it flits between local houses !

Interesting.

Drilling the tube of a Celestron is one thing but I'm not sure that I could bring myself to do the same on an AP Stowaway to gain that slight inwards movement of the DT bar.

Hope it works well for you though 🙂

1 hour ago, mikeDnight said:

The Seestar is obviously giving you a lot of enjoyment Paul, and it's nice to see the images it produces,  but it's not the same as seeing something for yourself through an eyepiece.  

 I first saw the spiral structure in M51 visually back in 2001 when using a 6" Helion F8 achromat. I was out of town and at a dark site and so was well dark adapted, but it struck me that if I could see the spiral and the bridge, why did it not get discovered sooner as it wasn't difficult, but neither was it immediately obvious.

 

My 1st experience of seeing, with my eye at an eyepiece, spiral galaxy structure was M51 with a Skywatcher 12 inch dob at my first SGL star party which must have been around 13 years ago now. Saw my 1st supernova with that scope as well. Magical memories 🙂

A couple of years later the same target with a 20 inch David Lukehust dob gave such an "in my face" view of the spiral structure that it's still engraved on my memory.

To echo part of what @Stu says above, I had a 12 inch F/5.3 dob based on an Orion Optics tube and a custom made base which broadly followed the OO small footprint design.

The overall weight of that scope + mount was similar to a 10 inch chinese made dob.

I'd previously had a 12 inch Meade Lightbridge and found it too heavy for me so moving to the OO based dob meant that I could keep the aperture, get slightly better optics and be able to set the scope up and tear it down quite quickly and without feeling that I was risking an injury of some sort !

I did consider getting a 14 inch OO dob a couple of times but doing the maths made me realise that I would be back where I was with the Lightbridge 12 in terms of overall weight. So I stuck with the 12 inch for over a decade.

Just a few favourite double stars tonight with the 100mm Tak. Short session just to say that "I've been out" 🙂

If I don't do a bit of observing now and then, questions start getting asked about the "need" to have 6 telescopes knocking around the dining room 😬

Showed my better half Porrima (Gamma Virgonis) earlier, when she enquired what I was looking at. Seemed to impress 😁

Maybe your current focuser could be adjusted to perform better ?

If you did upgrade to a 2 inch you would need to cut a larger hole in the tube for the focuser drawtube and likely drill new holes to bolt the new focuser onto the tube. 

I can see such a project ending up costing nearly as much as the scope is worth in all honesty.

You might be able to find an older 1.25 inch focuser that is made of metal such as the one that the Skywatcher 150PL uses but you will need to post a "wanted" advert on somewhere like the UK Astro Buy & Sell website because, as far as I know, such focusers are not available to purchase new. you might find someone who has upgraded the focuser on their 150PL ?

I've just ordered one of the Svbony 7-21mm's to use with my travel scope. Ernest in Russia was impressed by it - I hope I am 🙂

It won't be as good as the 3-8mm but hopefully will make a lightweight and versatile EP for the little travel setup.

One of the things that Orion Optics are good at, as far as we know, is mirror production. So my approach would be to capitalize on that and get the best grade that I could. For peace of mind as much as anything 🙄

If you go for 1/6th wave you might as well go for a Skywatcher or GSO - I'm sure most of them are at least that good optically.

2 hours ago, mikeDnight said:

I love Roger's Scopeviews reviews. I've sometimes wondered what Scope Views would be like if I did the reviews? The idea even makes me cringe! I suspect the site would need to have the warning "Not For Those Of A Sensitive Disposition"!

Putting reviews out there can be a fraught business. Ed Ting is getting some flack for his latest on the SeeStar 50 I see 🙄

One thing I found about the Ranger is that the objective lens is really well polished and figured. It performed as well as a 70mm aperture refractor can be expected to perform IMHO. The colour correction of mine was about the same as a good F/10 - F/12 achromat.

1 hour ago, mikeDnight said:

 I almost forgot that I also had a nice little TV Ranger for a while around 2004/5. Mine was the more beautiful green version. I seem to remember selling it for around £70. 

I sold mine to Roger Vine - it's the one that he reviews and pictures here:

TeleVue Ranger Review (scopeviews.co.uk)

43 minutes ago, Whistlin Bob said:

I don't have a 4 inch frac, but I was inspired by this thread,and after a dreadful March we finally got a clear night.

I was observing with a 14" dob, and thought I'd see what it could do on Tegmine,which I've not observed before. The third component was a nice easy split, but the 2 close stars were suffering a bit from the 'hairyness' that you often get with dobs. Problem solved with the aperture mask- which gives 160mm of unobstructed F10 aperture. Even with this the split wasn't easy- but with a little patience the little black line gradually emerged into view 😃

Occasionally I used an aperture mask with my 12 inch dob which gave a 4.5 inch F/14 unobstructed aperture. The views were very much like a 4.5 inch apochromat refractor. Theoretically the larger scope should split the close pair easily but the less "tidy" star images ("hairyness" is a good description !) makes things challenging.

Glad you got it with the mask 🙂

1 hour ago, IB20 said:

Head scratcher this one, Sirius A and something below but it’s not the correct location for the pup as it’s the wrong side. I don’t think it’s a field star so it’s most likely some artefact from my phone camera.

195x with the 125mm SM and a still frame from afocal iPhone video. 

What is the NSEW orientation of the image ?

The chart that @Mr Spock has posted above shows where it is - NE of Sirius A.

More often than not the Pup is shining through the halo of light surrounding Sirius A.