La comète Nishimura (C/2023 P1), à gauche, capturée environ 30 minutes après s'être levée dans le ciel d'avant l'aube le 10 septembre 2023 avec le ciel lumineux de mornin
6720 x 4450 px | 56,9 x 37,7 cm | 22,4 x 14,8 inches | 300dpi
Date de la prise de vue:
10 septembre 2023
Informations supplémentaires:
Comet Nishimura (C/2023 P1), at left, captured about 30 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 4.5º above the horizon at this time. The comet was about 5° north of the bright star Algieba, at right, aka Gamma Leonis. The comet sports a faint ion tail, 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. This is a stack of 7 x 30-second exposures, all tracked, with the SharpStar 61mm refractor at f/4.4 and filter modified Canon R at ISO 800. Differential refraction from the field being so close to the horizon creates some star trailing at top. All on the AstroPhysics 600E mount. 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.
