A potential Galactic nova is being discussed:
AT 205nlr from ASASSN - internal name ASASSN-25cm => Astro-COLIBRI reported also here
exchange from two amateur astronomers discussing their obs, with some caveats of their estimates for the magnitude based on comparison star selection
=> help with the confirmation of the magnitudes + classification is very welcome
AT 2025nlr has indeed been classified as a classical nova explosion.
AT 2025nlr has a Gaia-GBp Mag 7.8 since last night… An easy target. 2 seconds of exposure only.
Sincerely,
Roger Hellot
AITP Observatory at SpaceObs SanPedro-Atacama-Chili*
TRBS Observatory at Rosheim (F-67560)*
1 Like
Thanks a lot for sharing this! Continued monitoring over the next days and weeks is very important for tis kind of target.
viram
June 17, 2025, 4:54am
5
I was just outside and made a visual observation of 6.4 magnitude.
Andrew
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Still extremely bright! An easy target to keep an eye on…
