Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.


All Activity

This stream auto-updates     

  1. Past hour
  2. gajjer

    Why me?

    Hey, the way I look at it is; without the bad. there would be no reference to what 'good' is. It does seem that there are times when everything seems to go wrong at the same time. It will come right though. cheers gaj
  3. Hi all, as it can be derived from my nickname, I am a fan and supporter of altazimuth DSO imaging. I take pictures from the balcony of my flat in downtown Turin, Italy. Turin is the fourth biggest city in Italy and of course IL is an issue. According to Clear Outside mine is a Bortle 9, 17.6-17.8 sqm sky. I also have to deal with the "proximity IL" of the illumination of the internal court of my building. So the border conditions, to use a mathematical expression, are far from optimal, quite the opposite. Nevertheless I am quite satisfied of the results I was able to obtain so far with my AZ-GTi and my small scopes and camera lens. I have created my own site advocating for altazimuth DSO imaging, where I described all of my equipment. Basically so far my scopes are two short refractors, the ubiquitous 80/400 and a rarer Bresser 102/460, and two catadioptric ones, a mainstream SW MAK-90 and a less known Meade 2045D. Recently I have realized than, when paired with a cheap 0.5x focal reducer (mine is branded Telescope Service, but I reckon they are all based on the same design), produces surprisingly good results. The two pictures I'm showing here have been indeed realized with the MAK-90 and the aforementioned focal reducer, even if the effective reduction is rather like 0.56-0.57, for a focal length around 710 mm and an overall focal ratio of about 7.8 . M81 is a stack of 126 20s exposures, and M51 a stack of 140 20s exposures, all taken with a ZWO ASI 178MM.
  4. I watched Space Odyssey 2010 recently.. in it odd things start to occur on Jupiter and the next thing you know it ignited into a new star! Let's hope that doesn't happen here - that would create a whole new level of light pollution!
  5. Here's what the PHD2 developers said about your Guide Log: "Guiding appears to be limited by the 13.6s period RA error component. I think that the RA guiding could be improved by using shorter guide exposures, like 1s, or 1.5 s at most. I'd also suggest upgrading to the latest version of PHD2 (or better, the latest dev version), and running the Guiding Assistant with 1s exposures to get recommendations for the RA and Dec min-move settings. The ~765mm focal length of the imaging scope should be relatively forgiving and the above-mentioned RA guide error may not even be visible in the main camera subs." So set exposure to 1 second or thereabouts BEFORE running GA, not after as an experiment as I suggested, my bad. Latest dev version at https://openphdguiding.org/phd2-2.6.6dev1-installer.exe Just download and run it, don't uninstall the older one. Without seeing your subs, thay too don't think there will be appreciable drift. The largest component of your PE has a 13.6 second duration, this can be seen in the PHD2 Log Viewer if you select a smoother section of the log graph and click on Statistics, that's why a faster exposure is suggested. Michael
  6. The new mount would appeal to me at 35kg it is the sort of mount that would handle my LX200 12inch, without fork of course. I can't see myself trying to ever mount the 18 inch Dob. There are some what appears to be decently made mounts in the affordable area now, even though I could dig into the pockets far enough to buy a top level mount with weather like I have had dished up in May I can't see that I would ever want to. Not managed more than 70mins without being stopped often by a storm. Feel this one could be worth keeping an eye on. Alan
  7. From what I’ve read at 0.5A proms are good but not quite as good as an 0.7A but a lot more disc detail. Having had a Lunt 60 before will give me something to compare it too. The sun is behind a few tall trees at the moment but should be viewable before much longer and hardly any clouds so a first light is immenent
  8. Oh dear, you do seem to be having a run of bad luck. Hope it gets sorted soon. Carole
  9. Oh no! I just want to give my sympathies for your disaster. We all dread something like this happening. I don't know this scope so I can't add anything helpful. No doubt someone more knowledgable will be along in a while who can make some useful suggestions.
  10. From the review: We achieved this using a 1600 ASI camera; changing to an imaging camera with a smaller sensor meant that the telescope was able to get quite close-up images too Whoops. Will this instrument show proms or is it strictly for the disk? It does look very tasty and I'm following with interest. Olly
  11. Got mine the other day Brilliant. Used it the other night when it was clear. Best thing ever is that it’s organised by constellation and has SAO numbers and magnitudes and separations. With Goto it Makes finding doubles as easy as shooting fish in a barrel If doubles are your thing then this is a must have. Wished I’d found it earlier. I also decided to use the etc 125 mak which I had kind of fallen out of love with a bit. Had a fab night of observing doubles. Back I love with it now. The other great thing about the book is that it has showpiece stars by constellation so you can really hone in on the best ones. Paul, you’ll really love this beautiful book. steve
  12. Skyatnight review https://www.skyatnightmagazine.com/reviews/telescopes/daystar-solar-scout-ss60-ds-h-alpha-telescope-bundle-review/
  13. I nearly died when I saw the price of Astrodon filters 2 years ago, dare not look now. Alan
  14. Grettings, A few weeks ago a wind storm came through and blew over my entire imaging rig. The biggest issue that has arose are the optics in my 8rc. Collimation was atrocious when I checked it. I have been using a star test for collimation as well as a cheshire eyepiece. I know in the images below the donuts arent PERFECTLY centered but Im noticing an artifact in each unfocused star at about 5 o'clock... The focused rstars look triangular in shape.. not like poor collimation but moreso pinched optics. This wasnt a problem before the fall.. How may I diagnose this issue or figure out which component of my scope is causing the issue? Im hoping the OTA is not bent. Its a carbon fiber OTA.. the fall resulted in a few scratches but thats the only physical damage that I could see. If you have any more questions about my collimation procedure or the incident, let me know. Clear skies Teagan
  15. Hi Dave When does the starvis kick in ? Isn't that the point of using a Sony ixm91. M
  16. Today
  17. I bought a set of 3nm Chroma narrowband filters..... I am very happy with them
  18. I've had further info from Faye. The silicon sliver is only put there to prevent any undue slippage during shipping - it's not necessary to replace.
  19. Price reduced to £70 posted. If it doesn't sell at this price I'm happy to keep it . Dave
  20. You need to rebalance the scope. Said this, I agree with you.. that's a lot of rebalancing. I own two sets of eyepieces. Each set has very similar eyepieces in terms of weight and size.
  21. I would only add that if there is a place at your observing site where you and your dob can be in the shadows this will help, if none is available a black shall or fabric hood can be placed over ones head and the eyepiece. Some even create a darker area with building materials or items that may be close at hand, an eyepatch can also be used and lifted when observing. Best of Luck and Clear Skies of course... Freddie.
  22. Hi, not had chance to use the mount as yet fully, so can’t comment in full. The mount is fully manual with no slow motion controls. Friction is adjustable on both axis with large adjusters. Not tried with scopes attached as yet, but head very fluid on its own. No sticky points when turning on both axis. Tripod is very sturdy & build quality good for price. So hopefully will be a winner
  23. It never rains but it pours. Seriously though it is raining so it doesn’t matter one way or the other.
  24. Thanks for the replies, appreciated. Yes the Saxon Cielo HD rage is the same range as the Celestron X-Cel line. I was mainly interested to hear what they compare to the Tele Vue eyepieces in the Refractor. I don't really want to get a lesser quality eyepiece for the Refractor if my Tele Vue eyepieces are better performers.
  25. The drawback is it's size and weight, at least for me. For example ES82 11mm is 272g, ES82 24mm + 2" Focal Extender is 704g+655g. That was the reason I decided against getting 2" one, even though the price was really tempting - $80 shipped.
  26. Hi, Bridge, and welcome to SGL. Enjoy the journey.
  27. If you use sharpcap to capture, it has a "live-stacking" feature (you need to have/take your darks & flats at the beginning of the session), so you can save the time/space of stacking separately.
  1. Load more activity
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.