Lunar occultation of Venus
Taken by HÃ¥kon Dahle on June 19, 2020 @
Fjellhamar, Norway
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Camera Used: Unavailable Unavailable Exposure Time: Unavailable Aperture: Unavailable ISO: Unavailable Date Taken: 2020:06:19 15:00:54 |
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Details:
We had beautiful clear sky and warm weather with good seeing for this event. Venus was easily located in a 6x30 finderscope, but the moon was very difficult to see visually through the finderscope. The sun was hidden behind a tree to improve contrast.
I used a 20cm Celestron Schmidt-Cassegrain telescope with a ASI224MC camera. An infrared filter blocking light at wavelengths shorter than 850nm was used to darken the daytime sky and improve contrast.
Two video sequences were recorded: First a set of 4525 frames with 2.85ms exposure time, of which the best 90% were stacked to bring out lunar details. Then a set of 6169 exposures with exposure time 1ms were obtained, of which the best 20% were stacked to generate a sharp image of Venus which was pasted in to match the planet's location in an image taken just before the beginning of the occultation.
Software used: Autostakkert and iPhoto.
Photographer's website:
No URL provided.
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