Sunday (01-December-2024) — New Jersey

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The camera in the Stellina telescope stopped working. I’ll be contacting Vaonis support to try and figure out what is wrong. So tonight, I only have the Vespera-Pro telescope capturing images of the comet. The magnitude is now 9.6. The first image is a composite of 31 images (5 min 10 sec) and the second one is a composite of 247 images (41 min 20 sec). In the second image there is some movement of the comet head. Also, the comet is moving into a region of the sky with part of the milky way in the background (many more faint stars).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 10 sec images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 310 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 10 sec images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 310 sec).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 247 10 sec images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 2470 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 247 10 sec images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 2470 sec).

Saturday (30-November-2024) — New Jersey

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet is now +9.52. I am only showing images from the Stellina and Vespera-Pro telescope which were not fitted with filters. The length of the comet tail can be estimated based on the field of view for the telescope’s digital sensors. Stellina (1.0° x 0.7°) and Vespera Pro (1.6° x 1.6°). The jpg images were processed to increase the brightness (Capture One Pro) and reduce the noise (Topaz AI).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).

Friday (29-November-2024) — New Jersey

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The past two nights clouds prevented observation of the comet. The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet is now +9.45. I am only showing images from the Stellina and Vespera-Pro telescope which were not fitted with filters. The length of the comet tail can be estimated based on the field of view for the telescope’s digital sensors. Stellina (1.0° x 0.7°) and Vespera Pro (1.6° x 1.6°). The jpg images were processed to increase the brightness (Capture One Pro) and reduce the noise (Topaz AI).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).

Tuesday (26-November-2024) — New Jersey

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet is now +9.2. I am only showing images from a Stellina and Vespera-Pro telescope not fitted with filters. The length of the comet tail can be estimated based on the field of view for the telescope’s digital sensors. Stellina (1.0° x 0.7°) and Vespera Pro (1.6° x 1.6°). The jpg images were processed to increase the brightness (Capture One Pro) and reduce the noise (Topaz AI).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 31 images taken with a Vaonis Vespera-Pro Telescope (250 mm, f/5, 31 x 10 sec).

Saturday (23-November-2024) — New Jersey

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The last several nights have been overcast and even some desperately needed rain, so no images of the comet. The comet and tail keep getting smaller and fainter. The estimated magnitude of the comet is now +9.0. It was +8.3 when last viewed on Monday. I am only showing images from the Stellina telescope since the Vespera telescopes are fitted with filters for viewing emission nebulae.

Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).
Comet C/2023 A3 (Tsuchinshan–ATLAS). Composite of 30 images taken with a Vaonis Stellina Telescope (400 mm, f/5, 30 x 10 sec).

Deep Sky Objects

I’ve started a new set of multi-night emission nebula observations. The Singularity application only allows five multi-night observations on each instrument. The new targets will be the Dumbbell Nebula (M27), The Ghost of Cassiopeia Nebula (IC 59), the Fossil Footprint Nebula (NGC 1491, SH2-206), the Northern Trifid Nebula (NGC 1579), and the Christmas Tree Nebula (NGC 2264). The full moon is no longer a problem, however intermittent clouds keep interfering with the observations and prevented the last two targets. The Vespera Pro started M27 on a previous night.