Observation by Robin Leadbeater: An unusually quiet SU UMa

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Observation by Robin Leadbeater: An unusually quiet SU UMa

Uploaded by

Robin Leadbeater

Observer

Robin Leadbeater

Observed

2020 May 03 - 22:19

Uploaded

2020 May 05 - 13:18

Equipment

ALPY 600 Spectrograph
ATIK 428 camera
Celestron C11

Exposure

9x600 sec

Location

Wigton Cumbria

Target name

SU UMa

Title

An unusually quiet SU UMa

About this image

The archetype super outbursting Dwarf Nova SU UMa has been unusually quiet recently with no recorded outbursts (normal or super) in the past 80 days. This low resolution R~500 spectrum shows the system in quiescence at Vmag ~14.7 with strong emission lines of H and He I

Files associated with this observation

SU_UMa_20200503.972.png (66.4 kB)

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Jeremy Shears, Gary Poyner, David Basey, Hugh Allen, Andy Wilson, Roy Lemmon, Paul Leyland, Andrew Dumbleton, Peter Carson

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