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Found 8 results

  1. Hi. I live in Santiago, Chile, and on a recent trip back home to the US, bought a new Explore Scientific Exos100 PMC mount, to use here for AP with my DSLR and AT72ED scope. I have the ExploreStars app installed on my iPad, and it links fine, with slewing controls working from the tablet. My problem is, despite the fact that the app displays correctly my southern hemisphere location, the mount tracks as if it were in the northern hemisphere. I cannot find a hemisphere switch on the unit (like found on my SW Star Adventurer). I have written to ES but so far, no response. I am hoping to connect with EXOS100 users in So Africa, Australia or other southern hemisphere locations, to learn directly from them how they overcame this issue. Thanks!
  2. Hi everyone! I was lucky enough to spend Easter in Mauritius and managed to get a night of imaging in despite the tropical night time clouds! As someone who lives in the Northern hemisphere, the Carina nebula has always been a target I've coveted, but during my holiday, I also loved Crux as prominent constellation in the Southern sky. So when I ran into polar alignment issues with my Skyguider Pro, I decided to play it safe and go for a wider field, capturing both those targets rather than focusing purely on Carina as was my original goal. This was shot from my father in law's rooftop in Bonne Terre, Vacoas, Mauritius and my basic polar alignment meant significant field rotation, but I still got some usable data. Cropped, processed and finally upsampled. Data was shot at f/2.8 with a 50mm lens, unguided on an unmodified Sony a6500. 174 lights at 30 secs each = 1.4 hours of integration. Bortle 5. From the colours it looks like these objects sit right on the disc of the Milky Way and I know there is more in the picture I haven't mentioned! Thanks for looking!
  3. I am having a little trouble and I was hoping someone here could help me out a bit. Last July I went to the southern hemisphere and took some pictures of the night sky and things in it. I'd like to know what Im looking at though, but Im not at all familiar with the southern hemisphere night sky. If you could please look at these pictures and let me know what they are of, I'd appreciate it. I think one might be the Large Magellanic Cloud, but Im not sure and even if it is, I dont know which one. I took the pictures on the night of July 3 at around 9PM; at the time, I was on the island of Moorea. Thanks!
  4. POLAR ALIGNMENT IF THE POLE STAR IS OBSTRUCTED (e.g. OBSERVING ON A S-FACING BALCONY!!!) Set up your scope on the floor (assuming it's reasonably level) in equatorial mode, with a rough guess at North. Put the tube into whatever 'home' position the instructions specify, or that you have chosen. Now choose an easily recognisable bright star at mid altitude. Pretend you HAVE polar aligned, and tell the scope to go to this star. When the slewing stops lift the scope very gently and turn the mount round till the star is in the centre of the field of view and you should have a fairly good polar alignment. If you are for example videoing planets and can also autoguide, this alignment may be all you need. But you can now refine it by the drift method if you need to - see https://www.skyandtelescope.com/astronomy-resources/accurate-polar-alignment/ This method should be quite useful for Southern hemisphere observing, where the 'south pole star' - Sigma Octantis - is difficult to find especially in light polluted skies. And of course my advice here applies if you have a North-facing balcony!
  5. Took this with the Nikon D5300 and the 50mm 1.4 lens mounted on a Star Adventurer in late November south of Canberra, Australia. 21x100s exposures. 47 Tucanae hasn't got much detail, but i wanted to get all three in if i could
  6. I'm currently on a business trip to Melbourne and had the foresight to bring my cheap and nasty 10x50's that I don't mind having putting in as hold luggage on the plane. I couldn't take my decent bins as I'm lugging a laptop, so would be too much hassle take as hand luggage as well. A couple of nights ago I was walking back from the office to my hotel across the centre of town and noticed a pretty decent clear sky. Decided to get the bins out and go to the small park opposite the hotel to see what I could find - not having any familiarity with the southern sky. I was very surprised at how much I saw from the city centre - light pollution is nowehere near as bad as I get from my home in London. Centaurus and Crux were near the zenith slap bang in the middle of the winter milky way. There are a lot of very bright clusters in that region from Centaurus through Carinae. In 20 mins I bagged NGC 2516, NGC 3114, NGC 3293, IC 2602, NGC 3532, all of which are some of the loveliest binocular objects I've seen. The icing on the cake was Omega-Centauri; a globular cluster that makes M13 look like a mote of dust. Utterly gobsmaking. Very bright and about 3 times the size of M13. I'm here for another week and can't wait for another clear sky!!
  7. baggywrinkle

    Orion down under

    From the album: Baggy's

    ISO 800, 20 secs 14mm lens

    © Frank Dutton

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