L'eclissi solare anulare del 14 ottobre 2023, in una serie di immagini catturate al secondo contatto con la Luna tangente all'arto interno del Sole, a 1
18500 x 3350 px | 156,6 x 28,4 cm | 61,7 x 11,2 inches | 300dpi
Data acquisizione:
14 ottobre 2023
Altre informazioni:
The October 14, 2023 annular solar eclipse, in a series of images captured at second contact with the Moon tangent to the inside limb of the Sun, at 10:27 am MDT at the site I used. This site was the Ruby's Inn Overlook on the rim of Bryce Canyon, Utah, a site well south of the centreline, with 3m03s of annularity. This was shot at the start of annularity. Time runs from left to right, with the images separated in time by about 1 second each. The Moon was moving down across the Sun. The 7 frames here were selected from a set of 340 shot in high-speed continuous mode at 20 frames per second. The features of note are the "reverse Baily's Beads" at top where the thin line of sunlight breaks up into beads due to the rough cratered edge of the Moon. Seeing conditions also contribute to exagerrating the beads, in a "black drop" effect that extends any connection between the dark lunar disk and bright solar disk. North is up in these close-ups through an Astro-Physics 105mm Traveler refractor, a telescope I have used at five central solar eclipses as of this eclipse, including two annulars: this one and on May 10, 1994. These were all 1/400-second at f/12 (using a 2x Barlow lens for an effective focal length of 1200mm) and Canon R5 at ISO 100 and in cropped-frame mode. The telescope was equipped with a Kendrick/Baader Mylar type of solar filter. The original image is 18, 500 by 3, 350 pixels, so very high resolution. Unfortunately, a camera communication error prevented a similar set of images taken at third contact from being recorded to the cards.
