Observation by Mr Ian David Sharp: EF Peg - Superhumps during superoutburst

Uploaded by

Mr Ian David Sharp

Observer

Mr Ian David Sharp

Observed

2025 Aug 31 - 00:00

Uploaded

2025 Aug 31 - 09:05

Objects

Variable star
Lightcurve

Equipment

Celestron C11 Edge HD @F/7
10Micron GM 1000 HPS mount
Starlight XPress TRIUS PRO 694 mono CCD camera

Exposure

V: 60s

Location

PixelSkies, Castilléjar in the province of Granada, Andalucia

Target name

EF Peg

Title

EF Peg - Superhumps during superoutburst

About this image

EF Pegasi is a SU UMa-type dwarf nova (UGSU type) that exhibits superhumps during its superoutbursts. It is currently just fading from one of its superoutbursts and I have been monitoring it for a few days. Here's the result of a long run of nearly 7 hours from my C11 in Spain last night. The superhumps re clearly seen and I measured the period as 2.0988 hours which is very close to the quoted period of 2.01 hours.

Files associated with this observation

EF Peg Period.png (114.0 kB)

Like this image

Dominic Ford, Mike Foylan, Robin Leadbeater, Mike Harlow, Jeremy Shears, Andy Wilson

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