Observation by Dean Ashton: Medusa

Uploaded by

Dean Ashton

Observer

Dean Ashton

Observed

2023 Feb 09 - 19:00

Uploaded

2023 Oct 05 - 06:07

Objects

Sharpless 274

Planetarium overlay









Constellation

Gemini

Field centre

RA: 07h29m
Dec: +13°14'
Position angle: +0°18'

Field size

0°47' × 0°31'

Equipment
  • Celestron 9.25 (235mm) EdgeHD at /f7
  • QGY268C
  • Optolong L-eXtreme Filter
Exposure

42x600s Exposures, fl 1645mm /f7

Location

St Austell Cornwall

Target name

Medusa Nebula

Title

Medusa

About this image

I took this image of the planetary nebula Sh2-274 back in February 2023.  I found it a fascinating and unusual planetary nebula and so have gone back to the original data and re-processed it again.  The Optolong L-eXtreme filter is a duo-band filter with a 7nm pass for each of Ha and Oiii emission wavelengths,  

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