The Dutch Observatory

November 4, 2013 on 1:53 pm | In Sun | Comments Off

Today something different.  I imaged the sun through different optical paths.  The telescope is the same on the Ha images, my SolarMax40.  Four images with the ASI120MM camera, notably the close up of AR1884 and 85 through a 2x Meade 140 barlow, next a close up through a 1.25 Williams Optics barlow (used in binos), the third one is the camera at prime focus and the last one is through an Antares 0.5 focal reducer. All images were taken with the camera resolution set at 640×480 to maintain the size comparison.  Finally I added two green filtered images in addition to the Baader 3.8u white light filter made with the Stellarvue  SVC8o.  Seeing was terrible so the granulation is not as distinct as it could be, but still nice to see the relative sizes.