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Found 22 results

  1. Stub Mandrel

    Suin3

    From the album: Solar

    This morning using a fog filter
  2. From the album: Solar & Lunar Shots

    Got the binos out to look for sunspots today and then I thought I'd snap a few photos as well. Konica Minolta Dynax 5D + Minolta 100-400 zoom lens + Baader AstroSolar Safety Film. Image quite heavily cropped and I tried to change the (colour on the right version) to get a bit more pleasing result.

    © Stellan Johansson

  3. Sunspot groups AR1787, AR1785 & AR1784 are prominent in this image of the rising Sun behind the James Thomson monument near Kelso & Ednam. James Thomson was a poet & dramatist born in the village of Ednam in 1700 and perhaps best know for writing the words of 'Rule Britannia'. Pentax K5 Pentax 800mm lens @ f45 Exp. 0.5 sec. ISO 100 Sunspot sunrise & James Thomson monument by mikeyscope, on Flickr
  4. Today during my solar observation session I spoted two groups of white sunspots close to the solar limb. This is the first I see them. They are located between sunspot 1519 and solar limb, and between sunspot 1522 and solar limb. I checked the SOHO site, and found a HMI picture that confirms the white spots. http://sohowww.nasco...nspots_1024.jpg I am using a 102 nexstar with a Baader film. Because I only noticed them today I checked the SOHO database to see if they were there since when I saw the AR1520 for the first time. But they were not there, at least not visible in the SOHO pictures as well. For the most experienced solar observers, is it correct to afirm that these white spots are only visible when closer to the limb? If this is true, how does it happen? It is quite interesting that the white spots came to my attention due to some clouds passing in front of the sun. I put a moon filter to get a bit more of contrast. There was a small improvement in the contrast, but nothing like a clear view like the normal black sunspots. Does anyone can give me a tip to get a bit more of contrast on those white sunspots? Baader continuum filter? It will be nice to hear your experience observing those. This is my first week observing the sun! Thank you
  5. rob1

    Sun 21/04/13

    From the album: Astro pics

  6. rob1

    Sun 21/04/13

    From the album: Astro pics

  7. Sunspot groups AR1787 & AR1785 are visible on the setting Sun across the Firth Of Clyde during first week of July. Pentax 645D Pentax 1120mm lens @ f16 Exp. 125th sec. ISO 200 Sunspot sunset & fishing on the Firth Of Clyde by mikeyscope, on Flickr
  8. From the album: Astrophotography

    We set up the telescope in Cabbagetown Park, Atlanta to share the event with our neighbors. In addition to creating this image, several people took their first ever look through a telescope, witnessing a rare planetary transit of the Sun no less. This was also my first time using the solar filter and observing the Sun through my telescope. ISO 100 1/125s

    © Charles Duffney

  9. Stub Mandrel

    Sun1

    From the album: Solar

    This morning using a fog filter
  10. rob1

    Sun 16/04/13

    From the album: Astro pics

  11. Decided to brave the warm weather in the San Francisco Bay Area to grab a photo of AR1504 and its friends. I was going to grab video using the Canon 1D MarkIII and the 3x Barlow but the laptop got too hot and turned off. So I decided to take several photos praying I would get a clear picture out of the set.
  12. Stub Mandrel

    Sun2

    From the album: Solar

    This morning using a fog filter
  13. rob1

    Sun 21/04/13

    From the album: Astro pics

  14. rob1

    Sun 16/04/13

    From the album: Astro pics

  15. Discussing with a friend who had problems with his new SC on the Sun it was necessary to make him understand how I saw it so that he had a confrontation, while he could not get a crisp image to the monitor. So I decided to assemble this short explanatory movie which I hope will be useful to someone else. I think that see it directly is always better than any explanation in words, we are all subject to personal parameters. As you can see the micro-details are blured with an average/poor seeing, nothing compared to the high contrast of refractor and herschell prism images but even if the eye cannot dinstinguish, the datas are there available to them, and once stacked enough frames and acted on the levels and wavelet they will come out. We can see faculae, umbra and penumbra crossed by filaments, granulation and pores. The shots were made ​​with a C11 which mounted filter Astrosolar 5ND at full aperture and Continuum filter screwed to the camera.
  16. rob1

    Sun 21/04/13

    From the album: Astro pics

  17. Afternoon all , Just seen my very Sun spots today ... This was the inner dialogue beforehand : " Oh , Sun's out , try the filter again ... what's the point , it's just white light ... try anyway " It definitely pays to keep trying Counted four in total at Northwest quadrant Here is the simple set up - ST80 and you can see the rest in the photo
  18. Firstly I would like to say a big thank you to everyone who posts on this forum. I restarted this hobby in November 2017 aged 49 having last viewed the stars as a kid using a pair of brass binoculars. Having joined SGL I have been an avid reader lurking in the background picking up tips, tricks, ideas and methods and so this is what I would call my first serious post. Stargazing has been bit hit an miss since i purchased my Celestron Nexstar 6SE. In fact I joke that when I bought it the skies clouded over! Not to be deterred, I read that it is possible to view the sun through a telescope and despite all the warnings I thought I would give it a go. First up was my homemade Solar Filter which I made using the guidance notes from the Sky at Night Magazine. It was made using Baader AstroSolar Safety Film ND5 purchased from the good guys at FLO along with black A4 160 gsm card purchased via Amazon and a whole load of single and double sided sticky tape. Cutting the card into 5cm strips and sticking them together to form one long strip allowed me to wrap the card around the circumference of the scope three times to create a solid ring. I then cut the safety film to size and then offered this up to the ring sticking down the overlapping film to the outside of the ring careful not to touch the film itself. A second ring made of similar card strips stuck together was then applied to cover the overlapping film. A picture of the filter on my 6SE is below and as you can see it was necessary to cut out a 'notch' to accommodate the vixen mounting bar. 160gsm card is pretty tough stuff, especially when wrapped around six times so a pair of wire cutters did the trick. I later added two elastic bands around the ring to ensure that it remained securely on the scope. Both Saturday and Sunday (21 and 22 April) were very bright days and at 12.50pm I took the first image using my Nikon D90 mounted directly to my 6SE. A Celestron F6.3 focus reducer sat between the scope and T-mount/D90. This is single image at ISO 200 with the shutter set at 1/160th sec. Sun spots are clearly visible at the 10 o'clock position. The following day I used the same set up at 11:46 am but used the LO 1 ISO setting with the shutter set at 1/500th sec. Again sun spots are visible but have moved lower. The two single images were 'processed' using Photoshop Elements 2018. To be honest I tweaked a view knobs and moved a few slides to come up with what I have submitted today. Processing is a bit of a dark art and so the 'Dummies Guide to...' is sitting next to me as I type. I hope you enjoy reading this post and viewing the images and I would really welcome your honest feedback. It's not the Horse head nebula but from small acorns....... Cheers, Hughsie
  19. Some images of the huge sunspots on our local star at the moment. All images taken with a white light filter, The full disc shot was done with a DSLR and the close-up shots with my ZWO ASI120MM camera (with and without a x2 Barlow. I'm still fairly new to solar imaging and haven't quite got he hang of processing the close-up shots yet so this was all a bit experimental
  20. Hi, it's me again :-) AR 2454, 2456, 2457 on 22nd of November. Fujifilm X-T10 with XC50-230 zoom lens, baader solar filter Today the seeing was somewhat better than yesterday and I used a different processing technique: I inverted the colours so the spots show up bright and the surface details (along with a lot of noise) are somewhat more evident. What do you think of this processing? On flickr: Thanks for looking. Ricky
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