Mercury Transit Composite

herbraab
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Mercury Transit Composite
Mercury Transit Composite

Composite image of the Transit of Mercury on November 11, 2019. First image (ingress) taken at 12:36 UT, followed by images taken every 5 minutes betwenn 12:40 and 14:50 UT.

At ingress, the altitude of the Sun was 20°. When looking at the images of Mercury, it's obvious that the seeing conditions did get worse during the sequence, due to the the Sun's declining altitude, and due to some interference of clouds towards the end of the sequence. Sun and Mercury were completely hidden by clouds at 15:00 UT (unfortunately, just about 20 minutes before the closest approach of the planet to the center of the solar disk), and both finally set at 15:30 UT, as seen from my location.

The individual images were taken with a Canon EOS 550D at ISO 100 trough a 90/1000mm Refractor telescope equipped with solar filter.

This images has been published by Universo Mágico on November 24, 2019.

Attribution Noncommercial No Derivative Works Some rights reserved
Taken on: November 11, 2019
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Camera: Canon EOS 550D, 1/500 sec, ISO 100 (more info) (hide info)
Camera: Canon EOS 550D
Exposure Time: 0.002 sec (1/500)
ISO: 100
Exposure Bias: -1/2 EV
Flash: Off, Did not fire
Exposure Program: Aperture-priority AE
Exposure Mode: Auto
Metering Mode: Multi-segment
White Balance: Auto
Color Space: sRGB
Software: Adobe Photoshop CC 2018 (Windows)
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