Friday, October 17, 2025

Comet C/2025 A6 (Lemmon) near dawn

 At 5:15 am the waning crescent moon was rising over Snowshoe Mountain and Comet Lemmon (C/2025 A6) was low in the northeastern sky.  When I set up the cameras it was still too dark to see that the northern view was obstructed by power lines.  I am sure that there is some fancy post-processing that can remove the power-line shadows, but next time I will just scout out a better location ahead of time.

The comet is currently at about magnitude 4.5, which makes it a naked-eye object.  However, it is tough to see through the low-elevation airglow murk.  It was easy to pick up with binoculars. 

Olympus 75mm f/1.8.  ISO 1600, 30 s.

 
Rokinon 135mm f/2.  ISO 1600, 40 s.

There are two galaxies visible in this image to the upper-right  and right of the comet: NGC 5005 and NGC 5033, respectively.

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