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  2. I bought a colour 16ic for guiding simply because I already had a mono and wanted to see what using a colour camera was like. I did a bit of imaging with it on the side to find out. I never had any issue finding stars so I thought it would be OK for guiding and it was. I know the theory: the mono gets more signal from the full spectrum but, in reality, I found no perceptible difference between mono and colour 16ics for guiding. They were both infallible. We still have one of Tom's guiding the dual TEC. Olly
  3. That's very good advice Steve. The risks are entirely avoidable as long as you are methodical and think about what you are doing. It is when changing things over that I find I have to be more careful than setting up just for solar; changing my refractor over from night time mode to solar is the most important as forgetting to put the wedge in could be disastrous. Never get complacent and never rush, I guess that's the key to staying safe. I think we all do a good job on here of keeping that front of mind for solar observers.
  4. ....or an unusual effect in a tray after cooking burgers? Doug.
  5. Hello Dave ! Is het goedendag ou bonjour ?
  6. Just checked the BBC weather website for tonights forecast. It shows it being clear sky from 10pm to 1am.....with a 13% chance of rain. Forgive because I am no meteorologist here but if it rains there must be clouds so it cant be a clear sky. If its a clear sky there are no clouds so I guess no rain? A more apt forecast from the boffins at the BBC should be ; It will be cloudy with clear skies with a chance of fog, rain, snow, hail, frost, bright sunshine, hurricanes....... between 10pm and 1am. PS don't forget the sun tan lotion.
  7. After seeing so many “GoTo - Help Needed!” Threads. What a nice change to read about a positive experience! Enjoy your new toy. Paul
  8. Today
  9. Hello Dave and welcome. Peter
  10. Do you have a budget in mind? What imaging will you use it for..... Narrowband predominantly or LRGB as well? And what camera will you be using? The sensor size could affect the imaging circle of the scope......
  11. Nice capture. That close to the core it would be easy to miss.
  12. Hi, Dave, and welcome to SGL. As to advice on what to get next, it depends on what you wish to achieve. A common suggestion is a 200mm dob, but that will severely limit you for any imaging (with care it is possible to get 'snapshots' of solar system objects, but it is a lot of effort). If you got a solid-tube dob, you could later buy a tracking mount and attach the ota by means of tube rings and dovetail bar. But take this advice with the caveat above - knowing little of what you want to achieve.
  13. Zeiss spotting scopes are rather good I actually had 4 of them in the house once, my wife use to sell them for a local hunting business, I was somewhat shocked by how many times their riflescopes had faults though. Alan.
  14. I think that really depends on what you are trying to achieve. For a quick and 'reasonably good' result that might be true but if you have time to spend and some experience in processing it is most likely the other way round i.e. the mono images will be easier to process because you have the option to process luminance and RGB channels separately which gives you more control and options. In other words I found it quite hard to get a 'really good' image from my OSC camera and it seems much easier with my mono cam.
  15. +1 for having a process. One time I put my scope out and was rushing because it was intermittent cloud and I wanted a ‘quick look’ in between the clouds. Focused on getting set up quickly I nearly looked through at the sun without putting the filter on. Luckily I spotted it the missing filter otherwise it could have ended in disaster. That was a lesson learned - don’t rush - have a process to avoid silly errors. Now I go through a stringent mental checklist much like Mark outlines above. It sounds silly that i could forget the filter and if I read about someone else doing it I’d probably think that it was an impossible mistake to make because it’s so obvious, but distractions happen to us all when setting up kit. this one could have had serious consequences. I share so that others may learn. Be careful out there and be safe when solar observing have a checklist, it could save your vision and your embarrassment. Steve
  16. While everything said is correct and that I have moved from one-shot color CMOS to a mono CCD, the CMOS with a one shot color has a ton of advantages I sometimes miss. Not least that processing them is SO much easier.
  17. Maybe even better than a flip screen, a remote control operation. http://www.astrofriend.eu/astronomy/tutorials/tutorial-canon-remote-control/page01-tutorial-canon-remote-control.html Then I can sit in the car and check the focus. I need to refocus about one or two times per hour if the temperature change. Lars
  18. This summer I'm going to replace my hyperstar with a refractor, preferable more widefield than not. So what would be a good 60-90mm wide field refractor?
  19. Happy birthday to you, happy birthday to you, happy birthday dear observatory, happy birthday to you! Yes indeed. One year ago this weekend I started work on the observatory. So, with a little clear sky forecast tonight I went out with the intention of having a bit of a play with the DSLR. Sadly reality didn't match up to the forecast and what was supposed to be five or so hours of clear sky from 10pm turned out to be barely an hour of intermitted clear sky from just after midnight. On the positive side, I caught two ISS passes when it suddenly popped out from behind the clouds, so it's not all bad news. On the construction front, today I spent some time fitting a vent into the northern gable and then putting the cladding on that end, so that's another two jobs ticked off the list. I'm still pondering over fitting a vent on the southern end, too. I suspect I'll end up doing so though perhaps not immediately. I also collected a couple of posts from the local sawmill to support the ends of the roof rails. My wife had already disappeared off with the Skoda to take our daughter somewhere so I had to fit them in the Fiesta which was a bit of a giggle. Now I just need to dig a couple of holes to fill with concrete and set the feet for the posts into the concrete. I might get the holes sorted and then wait for the builder to have the mixer going before doing the concrete. I can't imagine I need more than half a mix and it seems a bit wasteful to start up the mixer just for that. James
  20. And that's it. Too much cloud to do anything useful now. I did catch Jupiter very low in the south just before I closed the observatory roof, but only naked eye. Perhaps I'll try to mount up the C9.25 tomorrow. The forecasters are threatening a few hours of clear sky tomorrow night. James
  21. Enjoyed watching these earlier, will stay up til 2.30 to try and catch another glimpse I think. No idea what the long term ramifications will be if any but an impressive project and sight either way.
  22. Hugh and Alan Thanks for those two useful bits of simplification and great timing too. I've been working on the wiring this afternoon and evening and have stopped for tonight just before getting to the connections requiring diodes and resistors. So I will just take the wire I had put in between DI3 and DO3 and put it instead to link O2 and I4. Thanks, Peter
  23. Yes, I'm going to jack it in shortly. I've lost view of pretty much everything to the south now. James
  24. Yesterday
  25. Oooh just caught starlink going past. Made my night since I was busy packing away gear in a huff. Silver lining I guess
  26. Hi, I took a load of images on 11/05/19 at various resolutions etc. using my ZWOASI178MC camera, via my Intes-Micro MN56 Mak Newt. After I had run my 7.27GB video data through Autostakkert, the resulting "conv" Tiff image ( 20% of 1356 frames at Noise Robust 3 ) looked rather overcooked, (ie) ( it looked as if unsharp-mask had been over-applied ) Usually the Autostakkert "conv" Tiff image, is always the one I select to process further for my final image. This time I decided to have a go at processing the "non conv" Tiff image, which I usually always ignore. I tweaked my "non conv" Autostakkert image through Gimp, then Arcsoft Photostudio 5.5 ( which I picked up free, with a Canon digital camera many years ago ). I then converted the photo into Black and white, and got the below result. In summary From what at the beginning appeared to be a failed lunar image, now seems quite a good image. Got to admit this processing work can drive you insane!! Whole evenings seem to get obliterated from doing it ! I am now left with dozens of images, which I consider as failures, and will now have to to delete ! Regards, Steve
  27. I seem to have got a clear patch for the moment, but only above about 40 degrees. Below that it's a bit random. Did catch part of another ISS pass though. It's been quite some time since I saw two in one night, so not all bad Just playing with the DSLR and timer at the moment, taking 1 min subs for some star trails. Could do with going to get a jacket, but I'll be in-shot... James
  28. That’s awesome, remember that if your mount has a polar scope you can greatly assist it’s accuracy by visually finding Polaris then leveling and adjusting your mount so Polaris is centered in the crosshairs of your polar scope. This will assure good accuracy, centering Polaris on the crosshairs is good enough for visual observing, later if you want to get into AP, you’ll want an app which shows exactly where to put Polaris off center from crosshairs for hyper accuracy as Polaris actually spins in a little circle as the hours pass.
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