Diagonal Partials, Rings, and Totality 3 - 2017 Total Solar Eclipse
This composition captures the entire total solar eclipse of August 21, 2017 in a sequence of partial phases, diamond rings, and the corona during totality.
The partial phases where shot with a Vixen ED100SF refractor, a Thousand Oaks solar filter (Type 3), and a Nikon D810 DSLR.
The diamond ring images where produced with the same telescope and camera, but with the solar filter removed.
The diamond ring effect is seen just before and after the total phase of the eclipse (aka totality). The crescent Sun is then a short, brilliant segment along one edge of the Moon (i.e., the diamond) seen as a dark silhouette and surrounded by the solar corona (i.e., the ring).
The image of the corona was produced with an Astro-Physics 105EDT refractor and a Nikon D800 DSLR. The corona is a composite of 57 separate exposures (1/2000 to 2 seconds) combined and processed using Photoshop CC 2017 and Photomatix Pro 6.
The image above is available as a Custom Print.
Additional eclipse photos can be seen at: 2017 Total Solar Eclipse Photo Gallery.
For more information on this event, see: EclipseWise 2017 Total Solar Eclipse.
Technical Details
- Title: Diagonal Partials, Rings, and Totality 3 - 2017 Total Solar Eclipse
- Date/Time: 2017 Aug 21 at 17:44 UTC
- Eclipse Circumstances: Altitude = 54°, Azimuth = 143°, HA = -1.41
- Location: Casper College, Casper, WY
- Mount: Losmandy G-11 German Equatorial Mount
- Telescope 1: Vixen ED100SF Refractor (100mm, f/9, fl=900 mm)
- Camera 1: Nikon D810
- Filter 1a (parial phases): Thousand Oaks glass solar filter (Type 3)
- Exposure 1a (parial phases): 1/4000 sec, f/9, ISO 200
- Exposure 1b (diamond rings): 1/1000 sec, f/9, ISO 200 (no solar filter)
- Telescope 2: Astro-Physics 105EDT Refractor (105mm, f/5.9, fl=616mm)
- Camera 2: Nikon D800
- Exposure 2: 1/2000 to 2 seconds, f/5.9, ISO 200
- File Name: TSE2017-diag11-1Aw.jpg
- Processing (Adobe Camera Raw): Exposure Adjustment, Clarity, Sharpening, Noise Reduction
- Processing (Adobe Photoshop CC2017): Curves, Layers
- Rights: Copyright 2017 by Fred Espenak. All Rights Reserved. See: Image Licensing.
