Observation by Alex Pratt: T CrB 2025 August 8

Uploaded by

Alex Pratt

Observer

Alex Pratt

Observed

2025 Aug 08 - 22:02

Uploaded

2025 Aug 09 - 11:58

Objects

T-CrB

Equipment

QHY5L-II-M CMOS camera
135mm f/2.8 telephoto lens
SharpCap
Muniwin 2.1.35

Exposure

60 x 2s

Location

Z92 - Leeds, West Yorkshire (Bortle 7)

Target name

T CrB 2025 August 8

Title

T CrB 2025 August 8

About this image

The recurrent nova T CrB is a binary system, a red giant and a white dwarf in an orbital dance of ~227.5 days, during which the apparent visual brightness currently varies between about mag 9.8 and 10.5. Following these sinusoidal variations T CrB has just peaked again at mag 9.5. This image from Aug 8 gives an estimate of 9.58.

Of course, we're all waiting for its brief eruption to mag 2 (or so). There seems to be as many different predictions as there are observers. In the meantime, keep recording its brightness in various wavelengths for astrophysicists to study this remarkable object.

Files associated with this observation

T CrB 20250808_220250_ARP.jpg (310.8 kB)

Like this image

Dominic Ford, Jeremy Shears, Robin Leadbeater, Callum Potter, Andy Wilson

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