12P/Pons-Brooks 2023-12-02 ASERO
Interesting structure and outbursts. Imaged from the Astronomical Society of Edinburgh’s remote telescope in Trevinca, Spain.
| Object ID | 12P/Pons-Brooks |
| Details | 2023-12-02 18:56 – 19:02 UT mag. 8.85, coma 7.3′ tail 10′, PA 34° |
| Telescope | Askar 94 mm f/4.4 Triplet Apo JTW Trident P75 mount |
| Camera | ToupTek Colour IMX571 |
| Filters | Optolong L |
| Exposure(s) | 11 x 30s exposures |
| Capture | NINA |
| Processing | Processed in APP and PS |
12P/Pons-Brooks 2023-11-19 ASERO
Interesting structure and outbursts. Imaged from the Astronomical Society of Edinburgh’s remote telescope in Trevinca, Spain. Extreme stretch to show the kink in the developing tail.
| Object ID | 12P/Pons-Brooks |
| Details | 2023-11-19 18:46 – 19:10 UT mag. 9.0, coma 4.7′ tail 18′, PA 44° |
| Telescope | Sharpstar 94 mm f/4.4 Triplet Apo JTW Trident P75 mount |
| Camera | ToupTek Colour IMX571 |
| Filters | Optolong L |
| Exposure(s) | 9 x 180s exposures |
| Capture | NINA |
| Processing | Processed in APP and PS |
C/2023 A3 (Tsuchinshan-ATLAS) 2023-05-14
Stacked on the comet so the stars trail and the comet remains still. Very faint at a mag of 16.9 CV and coma size < 0.4′
| Object ID | C/2023 A3 (Tsuchinshan-ATLAS) |
| Details | 2023-05-14 23:24 UT |
| Telescope | 250mm f4.8 Newtonian MPCC |
| Camera | QHY168C @-10°C |
| Filters | IDAS D3 |
| Exposure(s) | 7x180s |
| Capture | NINA |
| Processing | APP, ASTAP, Photoshop |
C/2023 A3 (Tsuchinshan-ATLAS)
The comet “meant” to put on a naked eye show in 2024. Still very far away and faint at about magnitude 17. Stacked on the comet so the stars trail and the comet remains still. Very faint at a mag of about 17 and come size 0.5′
| Object ID | C/2023 A3 (Tsuchinshan-ATLAS) |
| Details | 2023-04-20 22:38 UT |
| Telescope | 250mm f4.8 Newtonian MPCC |
| Camera | ATIK 460EX @-10°C |
| Filters | V |
| Exposure(s) | 10x180s |
| Capture | NINA |
| Processing | APP, ASTAP, Photoshop |
C/2022 E3 (ZTF) in R
Brighter still. 3 tails including sunward pointing one. Ion tail is twisting having suffered a “discontinuation event” caused by CMEs from the Sun.
| Object ID | Comet C/2022 E3 (ZTF) |
| Details | 2023-01-25 23:13 – 22:22 UT |
| Telescope | 250mm f4.8 Newtonian |
| Camera | Atik 460EX @-10°C |
| Filters | R |
| Exposure(s) | 20x60s |
| Capture | NINA |
| Processing | APP, Photoshop |
Moving very fast now. 20 minutes, each step 60s.
C/2022 E3 (ZTF)
Getting brighter. 2 tails
| Object ID | Comet C/2022 E3 (ZTF) |
| Details | 2023-01-16 23:13 – 23:38 UT |
| Telescope | 250mm f4.8 Newtonian |
| Camera | Atik 460EX @-10°C |
| Filters | V |
| Exposure(s) | 20x60s |
| Capture | NINA |
| Processing | APP, Photoshop |
29P/Schwassmann-Wachmann
Hard to get a magnitude with so many star in and around but still in outburst. Removed as many using ASTAP and got V mag. of 12.0.
| Object ID | 29P/Schwassmann-Wachmann |
| Details | 2022-12-20 23:00 UT V 12.0 |
| Telescope | 250mm f4.8 Newtonian, MPCC |
| Camera | Atik 460EX @-10°C |
| Filters | Baader V |
| Exposure(s) | 10x180s |
| Capture | NINA |
| Processing | APP, Photoshop |
Comet C/2020 V2 (ZTF)
Nicely placed close to the Pole
| Object ID | Comet C/2020 V2 (ZTF) |
| Details | 2020-12-14 23:00 – 23:22 UT
|
| Telescope | 250mm f4.8 Newtonian, MPCC |
| Camera | Atik 460EX @-10°C |
| Filters | V |
| Exposure(s) | 20 x 60s |
| Capture | NINA |
| Processing | APP, Photoshop, ASTAP |
Using Astrometrica and Comphot gives:
10×10 20×20 30×30 40×40 50×50 60×60
12.49 11.64 11.21 10.92 10.72 10.57 # Counts
12.49 11.70 11.25 10.96 10.74 10.59 # Median annuli
Total integrated magnitude: 10.22 (radius 73.3 arcsec)
COMPHOT: 1.4.6 2022 12 19.811 10.22 2.44 17.45 25.59 23.52 1102.1 0.78 Astrometrica 4.11.1.442 Unknown C-2020-V2-ZTF cometstack.fits
Comet 29P/Schwassmann-Wachmann in outburst
Reported by the BAA to be in outburst. V mag (ASTAP) 12.0
Latest outburst: 2022 11 21.83 +/-0.40 15.70R => 11.95R
| Object ID | Comet 29P/Schwassmann-Wachmann |
| Details | 2022-11-25 21:15 – 21:29 UT |
| Telescope | 250mm f4.8 Newtonian |
| Camera | Atik 460EX @-10°C |
| Filters | V |
| Exposure(s) | 4x30s 1x60s |
| Capture | NINA |
| Processing | APP, ASTAP, Photoshop |
Using Astrometrica / Comphot method:
10×10 20×20 30×30 40×40 50×50 60×60
12.31 11.81 11.52 11.31 11.18 11.09 # Counts
12.31 11.85 11.55 11.35 11.23 11.15 # Median annuli
Total integrated magnitude: 10.11 (radius 157.9 arcsec)
COMPHOT: 1.4.6 2022 11 28.881 10.11 5.26 16.65 24.82 43.05 1137.1 0.78 Astrometrica 4.11.1.442 Unknown 29P-Schwassmann-Wach comet.fits
Comet C/2022 E3 (ZTF)
20 frames and stacked on the comet. V magnitude of 13.6, which is fainter than the Clear values given on COBS, as expected.
| Object ID | Comet C/2022 E3 (ZTF) |
| Details | 2022-07-26 23:39 – 00:01 UT |
| Telescope | 250mm f4.8 Newtonian MPCC |
| Camera | Atik 460EX @-10 °C |
| Filters | Photometric V |
| Exposure(s) | 20 x 60s |
| Capture | NINA |
| Processing | APP, Photoshop, ASTAP |
C-2022 C3 ZTF Orbit
theskylive.com
19P/Borrelly
Currently the brightest comet around at about mag. 9. Photometry with ASTAP gives me a V magnitude of 9.7. Animation shows it heading away from the Sun now, after perihelion (1 Feb 2022), tail first.
| Object ID | Comet 19P Borrelly |
| Details | 2022-02-26 21:02:22 – 21:42:46 |
| Telescope | 250mm f4.8 Newtonian V filter |
| Camera | Atik 460EX @-10°C |
| Exposure(s) | 20 x 120s darks, flats, bias |
| Capture | NINA |
| Processing | ASTAP, Photoshop |
C/2019 L3 ATLAS
Monitored over about 45 minutes
| Object ID | C/2019 L3 ATLAS |
| Details | 2022-01-03 19:11:26 – 19:54:09 UT |
| Telescope | 250mm f4.8 Newtonian, MPCC |
| Camera | QHY168C IDAS D3 |
| Exposure(s) | 15 x 180s darks, flats, bias |
| Capture | NINA |
| Processing | APP, Photoshop |
Attempted photometry:
Animation showing movement over the period
