BRIXIIS Observatory activities | Page 3 | astronomical observations

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comet observation on 28 febr.

I was home very late and a clear night. So I decided to open the observatory for a while to observe comet 29P.

spectroscopic and comet observations on 24 febr. 2025

late in the evening it became a very clear sky, SQM in zenith was 19.45, which is very good in my area about 10 km from Antwerp. I was able to record 1 spectra of PZ Gem (8×1200 sec exposure) in high resolution of H-alpha region with my spectroscopic setup. Some comets were also observed: 29P, 43P, 50P, 496P, C/2022 QE78 with my 0.4-m f/3.8 telescope

comet observations on 19 jan.

weather conditions during the early evening were selct, cloudy and high overcast. However in the late evening there was a brief period of clearing, albeit with poorer transparency. 3 comets could be observed: 29P, C/2023 H5, P/2023 S1

comet observation on 18 febr.

in the early evening there were disturbing high clouds that interfered too much with observing. Later in the evening there was a brief clearing and I was able to observe comet 29P for an hour.

Comet and spectroscopic observations on 17 febr.

After high clouds are gone, i started with observations of some comets: comets that could be observed are: 29P, C/2023 Q1, and C/2024 A1. Also some spectra of Be-stars in high resolution could be obtained. stars were a spectra could be obtained are: gam Cas, PZ Gem and kap Dra.

new comet C/2025 B2 (Borisov)

While this object (gb00784) was still mentioned on the PPCP of the minor planet center web page, I was able to detect this object on jan. 30 with my 0.4-m f/3.8 telescope with CCD-camera and clear filter were 40 images of 120sec each are taken. After stacking, I was able to detect the object. It appears to me to be an asteroidal apparition. Unfortunately, conditions were not good to detect any comet features such as coma and whether or not it had a tail. A nearby bright star made this impossible for me. Later this object was assigned as comet C/2025 B2 (Borisov) with CBET 5501 and MPEC 2025-C153.
This comet is also my 600th comet that I have observed

Comet and spectroscopic observations on 4 febr. 2025

the weather reports did not bode well, it was still clear in the early evening with light veil clouds and disturbing moon. I was able to observe 3 comets: C/2022 E2, C/2023 Q1 and C/2024 N4. Then the clouds moved in I had to close the observatoria. Also spectra in H-alpha region could be obtained from Be stars HD 22780 and BN Gem. SQM @ zenit was about 18.3 … 18.5 during the observations.

spectroscopic observations on 3 febr. 2025

the sky is not so transparent because of high veil clouds. I made no comet observations, but was able to obtain some spectra of Be stars until the sky closed completely due to drifting clouds. Be stars I was able to obtain a spectrum from are: gam Cas and PZ Gem

comet observations on 2 febr. 2025

I was home very late, but it was clear, but very cold (-4 °C) and still opened the observatory to briefly follow up the outburst of comet 29P and also observe 2 other comets. comets observed were: 29P, 168P, C/2023 H5.

comet and spectroscopic observations on 30 jan. 2025

Finally another clear but cold night. Following comets were observed with my comet setup. 29P , 195P, 472P, C/2022 E2, C/2022 N2, C/2022 QE78, C/2024 M1, P/2015 CD60 and an object listed on the Minor-Planet Centre’s PCCP page could be detected. However, the quality of the image was insufficient to accurately measure any comet features. The astrometric data were, however, transmitted to the MPC. With my 2nd observatory I was able to obtain some high-resolution spectra around H-alpha area of following Be stars: gam Cas, OT Gem, AX Mon and PZ Gem and are freely available there for anyone who wishes to do so on the BeSS database.