Annular (Partial) Solar Eclipse – 10 June 2021

Annular (Partial) Solar Eclipse reflecting in the Bay of Green Bay – Captured from Oconto Causeway, Oconto Wisconsin; 10 June 2021; 0538CDT

Annular (Partial) Solar Eclipse – Green Bay, Wisconsin – 10 June 2021

Fun facts

An annular solar eclipse occurred on Thursday, June 10, 2021, when the Moon passed between Earth and the Sun, thereby partly obscuring the image of the Sun for a viewer on Earth. During the eclipse, the Moon’s apparent diameter was smaller than the Sun’s, so it caused the Sun to look like an annulus. The annular eclipse was visible from parts of northeastern Canada, Greenland, the Arctic Ocean (passing over the North Pole), and the Russian Far East, whilst the eclipse appeared partial from a region thousands of kilometres wide, which included northeastern North America, most of Europe, and northern Asia.

The annular eclipse started at 09:55 UTC for 3 minutes 37 seconds along the northern shore of Lake Superior in Ontario, Canada. The path of the antumbral shadow then headed across Hudson Bay through northwestern Quebec and the Hudson Strait to Baffin Island in Nunavut, where the town of Iqaluit saw 3 minutes and 5 seconds of annularity. After this, it then travelled across Baffin Bay and along the northwestern coast of Greenland, where the point of greatest eclipse occurred at 10:41 UTC in Nares Strait for 3 minutes 51 seconds. The shadow then crossed Ellesmere Island and the Arctic Ocean, passing over the North Pole (which was located away from the central line of the eclipse but saw 2 minutes and 36 seconds of annularity), before heading south towards northeastern Siberia, where the city of Srednekolymsk saw 3 minutes and 35 seconds of annularity at 11:27 UTC. Shortly afterwards, the central line of the annular eclipse ended at 11:29 UTC.

{ From:,_2021 }


Imaging stream: Tamron SP 150-600mm F/5-6.3 lens (@600mm), Canon EOS 5DSR, solar filter, on tripod; Shutter release with Pixel TW-283 E3 Wireless Shutter Release Remote Control

Capture & processing notes

My second opportunity to image a solar eclipse – the first (21 August 2017) was our 30th wedding anniversary – was almost five years later on 10 June 2021. Paul’s sister, Joan’s, 75th birthday!

Capture: 10 June 2021, 0507CDT – 0539CDT
Exposures were adjusted throughout the imaging period running from:
ISO200, f/11.0, 1/30th second at the beginning as the eclipsed sun rose out of the clouds (0507-0514CDT)
ISO100, f/11.0, 1/60th second eclipsed sun was above the clouds (0514-0518CDT)
ISO800, f/11.0, 1/10th second with the solar filter installed (0519 – 0538CDT)
Shooting location: Oconto Causeway overlooking Bay of Green Bay; Oconto, Wisconsin
Processing: Processed in Lightroom

Partial solar eclipse rising out of the clouds over Green Bay – 10 June 2021, 0508CDT
Partial solar eclipse rising over Green Bay – 10 June 2021, 0510CDT
Partial solar eclipse above the Bay of Green Bay – 10 June 2021, 0515CDT
Astro Events solar eclipse
Partial solar eclipse as seen from Oconto Causeway, Wisconsin (with solar filter) – 10 June 2021, 0522CDT
Partial Solar Eclipse reflecting in the Bay of Green Bay (with solar filter) – Captured from Oconto Causeway – 10 June 2021; 0538CDT