David Mathre Photography

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet was +7.6. The Stellina telescope did not use a filter and the Vespera II telescope was fitted with a CLS (city light suppression). The CLS filter causes a colored tint to the image. I’m not including images from the Vespera Classic, or Vespera Passengers telescopes that were fitted with Dual (H-alpha, O-III) interference filters for the emission nebula being observed later in the night.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet was +7.5. During the night, the battery for the Vespera-Pro telescope ran out, and would not recharge it via the USB-C port. Without power, I was unable to download the images of the comet from this telescope.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

Skipped a night because of clouds. The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet was +7.3. 

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet was +7.1. 

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The sky to the west was partly cloudy just after dusk. Three of the telescopes were able to initialize, and two were able to collect images of the comet between the clouds. The estimated magnitude of the comet was +6.9. The tail is fainter and shorter than yesterday. The clouds were probably partially obscuring the comet resulting in fainter images especially on the Vespera Classic.