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Total Solar Eclipse 2017

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Total Solar Eclipse - Casper, Wyoming USA - August 21 2017

By Odd Høydalsvik, Bergen, Norway



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

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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.

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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

 

Total solar eclipse 2017


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 Video of Total Solar Eclipse 2017


Timelapse animation of the eclipse.

 

Video of Total Solar Eclipse 2017


Documentary and timelapse animation of the eclipse.

 

Equipment for total solar eclipse 2017


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

Camera: Olympus OM-D E-M1 Mkii
Lens: Borg 60ED F5.8, 350mm Apo refractor telescope.
TS-Optics 50 mm Right-Angle Finder Scope with Vixen 20mm Eyepiece used for visual observation (10.4x magnification).
Sky-Watcher Star Adventurer equatorial tracker.
Baader AstroSolar® Safety Film
Manfrotto 055MF3 tripod.

 


© 2017: Odd Høydalsvik - unless otherwise stated on individual pictures.