This comet was really, really a fight… First failure was to believe stellarium the position of 41P. It’s wrong! I tought the comet is just very faint so I continued with the shooting. After stacking the session, no comet on the image…. so second try on the next day. Searching the right position. Much better, […]
Periodic error of my Star Adventurer x-axis: time in seconds, y-axis: arcseconds The peak-to-peak error of my Star Adventurer is about 87 arcsec (10 minutes period). I did some further measurements, all with fully loaded equipment (DSLR, 400mm lens, Guidescope). The first one is done on Feb 12, 2017. 2. measurement February 14, 2017, peak-to-peak: 78 arcsec (peak-to-peak) […]
I found an Iridium Flare on one single image from my last session shooting M 63 Sunflower Galaxy. No idea which satellite this could be… all databases I’ve found on the net have no satellite listed for this time and position… Date: March 30, 2017, 21:33h CEST Details Here are 3 consecutive raw images:
The galaxy period isn’t over 😉 f/5.6 Details
Finally M13 at 400mm focal length. The weather forecast was not really good, but it was it worth. f/5.6, ISO800, 104min total exposure time Details Drizzled: Normal:
Again M101 Pinwheel Galaxy…. with 180s exposure time at 400mm. Details Drizzle 2x integration, resized: Standard integration
M51 Whirlpool Galaxy, 23 million LY estimated distance, 60’000 LY diameter. Cropped image. f/5.6 Details
Part of the Virgo galaxy cluster. M84, M86, M87, M88, The Eyes and many more… Details
Today it was possible to catch the Moon and Jupiter on one image with 400mm focal length. EOS 100D EF 400mm f/5.6L @ f/11 1/100s ISO800 Details
So many galaxies in Leo… the biggest 3 (starting top clockwise): NGC3628 Sarah’s or Hamburger Galaxy, M65, M66 and on the right the smaller galaxy NGC 3593. Details 2x drizzled: standard integration crop:
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