Daytime ISS Lunar Transit 12-9-2020 (walkman)

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Daytime ISS Lunar Transit 12-9-2020

Acquisition type: Lucky imaging

Daytime ISS Lunar Transit 12-9-2020

Acquisition type: Lucky imaging

Daytime ISS lunar transit. Captured in Lake Jackson, TX, using a StellarVue 80 Access, Celestron 2x barlow, ASI294MC and an Antlia IR685 pass filter. The daytime transit plus the IRpass filter necessitated a high gain to obtain a sub-millisecond exposure to stop the motion of the ISS. This is a composite image of the 26 frames that captured the ISS. Combined in PS CC 2020 using Lighten Blending Mode for each of the 26 individual frames to combine all ISS images on one frame. Use Full Resolution to view the ISS images which are the single frames exported from the SER capture file.

The ISS was illuminated as it was a daylight transit. The path was over the non-illuminated portion of the Moon so I was expecting the ISS to be easily visible. The IR685 pass filter helped to increase the contrast of the Moon against the sky. The Moon was 44 degrees altitude at the time of the transit. Duration was 0.96 seconds, distance to ISS was 575 Km.

For the revision, I used AutoStakkert 3 to stack 50 of the 118 frames of the Moon in the video after the ISS moved out of the FOV. Wavelet sharpening in Registax 6 with final tweaking in PS CC 2020.

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Daytime ISS Lunar Transit 12-9-2020

Daytime ISS Lunar Transit 12-9-2020

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Daytime ISS Lunar Transit 12-9-2020

Daytime ISS Lunar Transit 12-9-2020

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