The past two nights clouds prevented observation of the comet. The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet is now +9.45. I am only showing images from the Stellina and Vespera-Pro telescope which were not fitted with filters. The length of the comet tail can be estimated based on the field of view for the telescope’s digital sensors. Stellina (1.0° x 0.7°) and Vespera Pro (1.6° x 1.6°). The jpg images were processed to increase the brightness (Capture One Pro) and reduce the noise (Topaz AI).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).
Author: David Mathre
I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.
View all posts by David Mathre
