Dvärgnovan QY Per i sällsynt utbrott

[Hans Bengtsson]

Enligt AAVSO befinner sig dvärgnovan QY Per nu (28 januari 2025) i ett av sina sällsynta utbrott. Visuell magnitud ca 13.9.

Stjärnan är förstås ett ypperligt objekt för tidsserier, med tanke på superpucklar!

Vid minimum är QY Per mycket ljussvag, visuell magnitud 21. Jag har markerat den på ett klipp 2×2 bågminuter från DSS Plate Finder.

Observationer:

2025 Jan 26.2259 UT: g <17.406 (ASASSN)

2025 Jan 27.9285 UT: CV = 13.885 (Poyner)

2025 Jan 28.1945 UT: g = 14.234 (ASASSN)

2025 Jan 28.1958 UT: g = 14.251 (ASASSN)

2025 Jan 28.1970 UT: g = 14.169 (ASASSN)

Utbrottet 1999:

http://www.kusastro.kyoto-u.ac.jp/vsnet/DNe/qyper.html

http://www.miche.lewcook.com/qyper.htm

 

• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.
• This topic was modified 1 day ago by Hans Bengtsson.

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