La comète Nishimura (C/2023 P1) a capturé environ 25 minutes après s'être levé dans le ciel d'avant l'aube le 10 septembre 2023 avec le ciel lumineux avec le crépuscule du matin
4480 x 6720 px | 37,9 x 56,9 cm | 14,9 x 22,4 inches | 300dpi
Date de la prise de vue:
10 septembre 2023
Informations supplémentaires:
Comet Nishimura (C/2023 P1) captured about 25 minutes after rising in the pre-dawn sky on September 10, 2023 with the sky bright with morning twilight colours. The comet was only about 4º above the horizon at this time. This was about 5:25 am MDT. The comet was about 5° north of the bright star Algieba, at centre right, aka Gamma Leonis. The comet sports a faint ion tail, here about 7º to 8º long, with the comet seemingly pointed toward the sunrise point; it was moving down and closer to the Sun at this time. The comet was barely visible in binoculars as a fuzzy star and not at all with the unaided eye. The camera picked out the faint tail from the sky background. This is a stack of 8 x 20-second exposures, all tracked, with the Canon RF135mm lens at f/2 and red-sensitiveCanon Ra at ISO 400, with the sky images blended with a single image of the ground to minimize blurring. On the Star Adventurer tracker. Taken from home on a very clear morning with the waning crescent Moon in the sky. Mild applications of Nik Color EFX Detail Extractor and Luminar Neo Sky Enhancer filters helped bring out the tail. However, the colour gradient is what the sky presented.
