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That's incredible Prof! Ray
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I replaced the original image with one taken on a higher resolution scanner. Greg
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And here is the actual pinhole camera image (solargraph) itself. The topmost bright line is the Sun's path on the Summer Solstice (June 21st 2022) and the bright line at the very bottom is the Sun's path on the Winter Solstice (December 21st 2021). The two white domes at the bottom of the image are the New Forest Observatories. Greg
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Summer Solstice today for us Brits and tonight I will bring in the photopaper from the pinhole camera that has been imaging from December 21st 2021 until today. Piccie of the pinhole camera is attached. Greg
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A couple more macros from today
Radar replied to wingeing Pom's topic in Nature Photography - Storms - Sunsets - Landscape - Time Lapse
Great work Prof. Ray- 1 reply
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A couple more macros from today
wingeing Pom posted a topic in Nature Photography - Storms - Sunsets - Landscape - Time Lapse
A white Poppy and a Rose Greg -
The good thing about the rings is that they are precisely the star colour as Noel takes the colour from around the edge of the star (keeping clear of the core where it is saturated - white). Greg
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I love that ring around it Prof. Ray
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I reprocessed Aldebaran with ring flare so it would look similar to Spica and Arcturus.
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Spica - the Brightest Bluest star in the sky. Reprocessed 22/04/2015 data taken on the Sky90 array with the M26C OSC CCDs. 33 subs at 5-minutes per sub. Spica is Alpha Virginis, the brightest star in the constellation Virgo.
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From 03-06-2015 a 2-frame mosaic of Arcturus taken with the Sky90 array and the M26C OSC CCDs. Each frame was 30 subs at 4-minutes per sub. In the 5 o'clock position is the asterism called "Napoleon's Hat".
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Reprocessed data from 09/09/2015 - the bright star towards centre bottom is Epsilon Cassiopeiae (the topmost left star in the Cassiopeia "W") - and in the 11 o'clock position is an interesting asterism I call "Greg's Lambda" as noone else seems to have laid claim to it. This is a Sky90 array/M26C OSC CCD image with each frame being 12 subs at 10-minutes per sub.
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This is Kemble's Cascade in the constellation Camelopardalis - and in this image the Cascade has been made more apparent by using the Akira Fujii effect. Another old data reprocess from 22/09/2015. This is a 4-frame mosaic using the Sky90 array and the M26C OSC CCDs. 3 of the 4 frames are 12 x 10-minute subs, and the 4th frame is 15 x 10-minute subs giving a total exposure time of 8 and a half hours. This is a large crop to centre the cascade.
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Your optics are fantastically aligned. But would we expect anything else from you? Beautiful capture of an awesome looking star. Ray
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A reprocess of Aldebaran from 08/12 /2015 using the Sky90 array and the M26C OSC CCDs. This is a 2-frame mosaic with a total number of 66 subs at 2-minutes per sub. Greg
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Yep - that's M97 Owl nebula and M108 galaxy Greg
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Awesome Prof. Nice little galaxy lower left, and is that a planetary nebula even lower left? Ray
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Carbon star T Cancri from 14/03/2016 using the Sky90 array and the M26C OSC CCDs. This is 18 subs at 10-minutes per sub. Greg
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This is another reprocess of old data, this time it's the mighty Merak in the constellation Ursa Major. This is a 4-frame mosaic using the Sky90 array and the M26C OSC CCDs. Total exposure time is 16 hours using 10-minute subs. Greg
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Wow! Some great detail in that. I'd love to get my C14 onto some of those pillars! Great work as always Prof. Ray
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Another reprocess of old data. This time it is the Heart nebula. A 2-frame mosaic taken using the Sky90 array and the M26C OSC CCDs. The upper half of the image is 24 x 20-minute subs and the lower half is 15 x 20-minute subs so the whole image is 13-hours of exposure time. Greg
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Wow, awesome progression. Ray
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Will you please save some ionized hydrogen and stars for me! Beautiful real estate Prof! Well done as always! Ray
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The star spikes are just wrong so I got rid of them. Greg
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My last revisit to this one for a while now. As per Noel Carboni's advice I went much lighter on the flattening and I also applied ZERO noise reduction. After all, with 30-hours of data you really shouldn't need noise reduction. Greg