bomberbaz

If you look on bbc iplayer you can binge watch the entire series

My latest addition, my current 30mm casts to big of a exit pupil in my dob where as this brings it in at under 6mm

I still say it looks like a bat but thats just me.

+1 for a crosshair eyepiece, although I use a slightly longer 20mm eyepiece with a slightly wider FOV but in an F1700 scope that is still x85 with the crosshair. That is with pushto also, not goto but still the same idea.

I have bad astigmatsm which is above 1, I cannot remember exactly what it is but according to the chart above from televue I need glasses or diopter down to about 1.5 degree exit pupil. However my own experience is that I am happy viewing once the exit pupil hits 2.5mm or less in my F4.9 dob. When using my F9.8 frac I don't bother at all usually.

If storage isn't a huge consideration, this would be my choice.

The classic 150p dob had a focal length of 1200 so it's a near F8 mirror so actually better for planetary. Agreed about the shroud, that is a cracking and fairly simple mod, the ptfe also a worthwhile upgrade. I just watched the video and was impressed with how sleek the shroud mod looked.

The thing with the pictures is they are probably taken with a phone or one shot camera because the 150P is not designed for astrophotography, so that snap is pretty reasonable. It will easily work for planetary viewing and the moon. It will also be OK on many of the other objects available such as nebula and some galaxies but your comment re: taking it to a dark sky site is what you should be aiming for DSO work. You cannot underestimate the difference a dark sky makes to what you see when you are viewing a faint object.

Revisiting this since my first much earlier post to see how it has expanded <( see what i did there). After pouring over all the posts, hypotheses and videos, not to mention the beginners class to early computer science 😉, I have found the above post from @space_master meets my own level of understanding and I am happy to leave it at that until the LHC or similar experiment tells me otherwise 😅. Fascinating input, well done all 👏

Cheers calv, I have been up there before and was blown away and so kinda know what to expect. I am so hoping for at least one good night. I am there for up to 4 night and i have made up a mixed group of target objects but mainly of nebula and galaxy with a few other things thrown in to break it up/. My list of objects currently stands at 87 lol 😅

Thanks for the reply mark, Markarian chain is on ly list but it may be too late into the early morning to see them. Also further reading reveals a thread on here discussing using UHC for syfert galaxies Filter discussion see @YKSE comments halfway down. I have read it somewhere else too on cloudy nights but my pc did an update, auto rebooted and I lost where it is. I am looking forward to trying this out as if it proves a worthwhile method to employ it will bring a whole new dimension to viewing faint fuzzies.

Hello everyone and although it's been a while since I posted I have been active in the back ground. I am due to go to galloway in 2 weeks and aim to make the most of it, weather gods permitting. I recently read that some galaxies that have active nuclei can be observed using a UHC filter to bring out detail of the galactic core and wondered if anyone has used this method and if so, have some examples of suitable DSO targets. My understanding is the black hole is spewing out vast clouds of superheated particles from it's polar regions and these will stand out well under a uhc filter although this will obviously kill the actual galaxy itself. Any help gratefully received. Steve

In most cases this is true but apparently there is always something that comes along and opens up a tin of worms to spoil or make theories hard to prove. Mystery of Galaxy's Missing Dark Matter Deepens | NASA

Box sorted, strong as new now. Bit of gorilla glue and some expoxy resin seems to have done the job. Although don't that gorilla stuff expand and get everywhere 😳 Took some tidying up but still shows!

good point steve, I shall enquire but whether hermes will pay out is another thing

I have been up to the local obvs at Todmorden today and @Peter Drew & I gave the OTA a good look over and I am pleased to say it is in good order. Optics are spot on, tube itself is very clean & free of blemishes etc and focuser is fine too. I contacted the seller regarding the bashed case and he assured me it left him without the broken corner bracket and just a loose lid, pfft 🙄. By the way he was referring to things I gather he was very inexperienced in astronomy matters. Anyway I have to write off any chance of a partial damage related refund and just do my best to fix it. Steve

Some good points there stu, I am going to try using my binoviewers again next time I do WL with the lunt and newly acquired ED 100, see if my results improve which I am confident they will. cheers 👍

Bit pricy these stu, although I am always up for improved results if worth it. What's your overall take on this, do you feel it is worth the more than double price of the Lunt ?

Good point, well made Dave. I did notice the ring, just had a 2nd look and still not sure what to make of it. The artefacts look like dust/fluff on the inside. I will wait until I get a face to face 2nd opinion before I make a call on this.

Doesn't matter where you purchase from as long as it has a proper profile. This is a dedicated 2nd hand astronomy facebook group. The top picture shows you the corner of the lid, smashed not loose! I have got someone to look at it for me who knows their stuff so will wait before contacting the vendor. I hope I can keep it to be honest, makes life easier.

Yes I noticed those but wasn't sure of their use, so at least it isn't damaged but needs a little TLC. However still doesn't get me over the dirty objectives and if these can be cleaned. If these are dirty, what will the rest of the OTA be like internally.

Hello people. I have just taken receipt of a OTA as title says and I am looking for opinions and advice. It was listed as follows: Skywatcher 100ED + the excellent Moonlite Focuser. In excellent working condition lid has come a bit loose on the box First the lid, it isn't loose, it is clearly broken and possibly dropped but certainly not just loose Next the objectives are pretty dirty on the inside and so excellent working condition is called into account Finally, there are massive amounts of slop/free play in the focuser. Now I am not familiar with this and wondered is this normal or a sign of potential damage. Video below: I have paid via paypal so can go back to him without problem of return but I thought I would gain opinion on here before I take that step. They are not an SGL member but bought from a 2nd hand astronomy page on facebook for £600.00. 20210524_084609.mp4

😂 dohh!

I got plenty of email off him, guys in russia apparently. Just send him an email and ask for an update mike, seemed like a decent sort.

came the other day mike, not had chance to use it but seems like a good bit of kit. Tried it outside on sunny day and it was a total blackout. I take it yours has also arrived?