British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Robin Leadbeater

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
Like this image