Comet 10P/Tempel
Taken by José J. Chambó on May 29, 2026 @
Rio Hurtado, Chile
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Comet 10P/Tempel, imaged on May 29, 2026 at around magnitude 12, was showing clear signs of rapid evolution, with a noticeably higher level of activity than just twelve days earlier.
This is my second image of 10P/Tempel during its current apparition. Over that short interval, the comet brightened from roughly magnitude 14 to magnitude 12, reflecting an increasingly active phase as it continues its approach toward perihelion.
The image reveals a broad green coma with a fan-shaped appearance and a still prominent central condensation. The nucleus remains embedded within a compact, bright inner region, while gaseous material expands asymmetrically outward, reflecting the recent increase in activity.
At the time of the exposure, the comet was located near the border between Capricornus and Aquila, projected against a rich Milky Way star field. The image highlights the contrast between the dense stellar background and the comet’s diffuse gaseous envelope.
Sometimes it takes months to notice a comet changing. In the case of 10P/Tempel, its transformation is already obvious between observations made only a short time apart.
10P/Tempel @ 2026-May-29, 09:58 UT
Total Mag= 11.8 [aperture 330"], Dia.= 5.5 (Tycho Tracker)
ASA N250 Astrograph f/3.6, ZWO ASI 6200 MM. L=3x120s RGB=1x120s, FOV=74x56'(crop), N:Up E:Left. DSC, Coquimbo (Chile). J. Chambó
Photographer's website:
https://cometografia.es
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