Paul Derby @pderby

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Bradford pear leaf with raindrops.
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Bradford pear leaf with raindrops.

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Oct 27 moon taken over Arlington with my new iPhone8 aimed through the eyepiece of a small Questar Telescope. #shotoniphone #shotoniphone8
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Oct 27 moon taken over Arlington with my new iPhone8 aimed through the eyepiece of a small Questar Telescope. #shotoniphone #shotoniphone8

Busy bee preparing for Fall.
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Busy bee preparing for Fall.

Irma may be the biggest hurricane on earth today, but our sun has been showing unusually large sunspots lately.  The largest of several sunspots in this photo is several earth diameters.  If you still have your eclipse glasses handy, step outside and take a look. This sunspot is so large you don't need a telescope to see it. Technical details for the curious:  Image captured with an iPhone 6 aimed through a 16mm eyepiece attached to a 3.5" Questar Telescope  1,400 mm focal length, f/14.  Exposure is 1/4,400 sec.  A triple chromium full aperture solar filter is attached to the front of the 89mm aperture Questar telescope.
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Irma may be the biggest hurricane on earth today, but our sun has been showing unusually large sunspots lately. The largest of several sunspots in this photo is several earth diameters. If you still have your eclipse glasses handy, step outside and take a look. This sunspot is so large you don't need a telescope to see it. Technical details for the curious: Image captured with an iPhone 6 aimed through a 16mm eyepiece attached to a 3.5" Questar Telescope 1,400 mm focal length, f/14. Exposure is 1/4,400 sec. A triple chromium full aperture solar filter is attached to the front of the 89mm aperture Questar telescope.

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Aug 21 eclipse at time of totality as seen from Arlington VA.
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Aug 21 eclipse at time of totality as seen from Arlington VA.

Moon moving across the sun as seen from Arlington VA
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Moon moving across the sun as seen from Arlington VA

Dawn's early light
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Dawn's early light

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What a headdress on this pretty bird.
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What a headdress on this pretty bird.

Lincoln Memorial
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Lincoln Memorial

Crescent moon
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Crescent moon

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Marsh Mallow
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Marsh Mallow

Violets
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Violets

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