Total Solar Eclipse 2017

We observed the eclipse from Casper, not far from Casper Events Center.
Position: 42°51’54” N, 106°19’58” W, Elevation 1583m

Clear sky in the morning. During the first partial phase a few thin clouds were formed. These were present during totality as can be seen from the picture below. Luckily they were so thin they did not obscure the view much. A few details in the corona were lost. But all in all we must be satisfied.

Timing data for the total solar eclipse at the observation site (local time UT-7):
First contact: 10:22:15; Second contact: 11:42:38; Mid eclipse: 11:43:51; Third contact: 11:45:04; Fourth contact: 13:09:26

Wide angle view during totality.
Notice all the city lights that were switched on because of the darkness during totality.
Camera: Olympus OM-D E-M5 Mkii
Lens: Laowa 7.5mm f:2.0
Exposure: 1/10s, f:2.0, ISO 200

Corona.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: HDR composite of 14 images, exposure times from 1s to 1/8000s, f:5.8, ISO 200
The sun stood in the costellation Leo. At far left we see the star Regulus (α Leonis, visual magnitude 1.4),
and at far right the faint star ν Leonis (visual magnitude 5.15)
Mouse over picture to help locate stars.

Diamond ring at second contact.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: 1/500s, f:5.8, ISO 200

Chromosphere and prominences at right limb of the sun, a few seconds before third contact.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: 1/500s, f:5.8, ISO 200

Composite image - Diamond ring at second contact at left, and prominences just before third contact at the right.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: 1/500s, f:5.8, ISO 200

Sandwich showing the apparent sizes of the sum and the moon.
The picture of the sun was taken just before the start of the partial phase.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: 1/2000s and 1/500s, f:5.8, ISO 200

Partial phase.
Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope
Exposure: 1/2000s, f:5.8, ISO 200

Panorama 360 degree view during totality.
Notice the sunset colour along all the horizon. This is the edge of the moon shadow.
Camera: Olympus OM-D E-M5 Mkii
Lens: Laowa 7.5mm f:2.0
Exposure: 1/30s, f:2.0, ISO 200

Timelapse animation of the eclipse.

Documentary and timelapse animation of the eclipse.

The lightweight equipment rig used for the eclipse. Less than 4kg in total.