Contains:  Solar system body or event
Analemma 2021/22 finished, christianhanke

Analemma 2021/22 finished

Analemma 2021/22 finished, christianhanke

Analemma 2021/22 finished

Equipment

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Description

With summer solstice I was able to finish my 2021/22 analemma project using a DMK-camera with a small wide angle objective. To reduce the brightness I placed a small piece of Baader Solar foil between the objective and the sensor chip. The pictures have been taken by a Raspberry PI4 together with the EKOS KStar software. The software didn´t allow a limitation of the exposures during daytime, so pictures were taken the whole year every 20 minutes with an exposure time of 2 ms. From the 26208 pictures I used 20 per day to stack in total 7280 of them to get the final picture together with one color photo of the scenery, which is shown in version A. The total exposure time is about 15 s. In order to get rid of the overlapping traces there is a version B using pictures with a time interval of 40 minutes. There are some small deviations in the traces due to small deviations in the time intervals resulting from different time for saving the pictures to the SD-card memory.

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Revisions

  • Final
    Analemma 2021/22 finished, christianhanke
    Original
  • Analemma 2021/22 finished, christianhanke
    B

B

Description: Time interval 40 minutes

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Analemma 2021/22 finished, christianhanke