new icn messageflickr-free-ic3d pan white
2019_03_03_EZ_Canis_Major_HaOIII | by Murray L Parkinson
Back to photostream

2019_03_03_EZ_Canis_Major_HaOIII

The Porpoise Nebula in Canis Major.

 

This faint Oxygen III nebula is catalogued as Sharpless 308 in the constellation of Canis Major and is commonly called the Gourd Nebula, but I am one of those people who see a Porpoise first, or I am fonder of porpoises than gourds anyway. The nebula is classified as a Wolf-Rayet bubble and originates from the star located close to the centre of the frame.

 

Technical Details:

 

Televue NP127is Refractor at f/5.2, Astrodon 3-nm H alpha and OIII filters, QSI 683wsg camera. Mount: EQ8. Data capture from suburban Sydney.

 

H alpha: 29 x 21 minutes = 10 hours, OIII: 38 x 21 minutes + 10 x 28 minutes = 18 hours. All exposures used 2 x 2 binning.

 

Software: Nebulosity 4, PHD 2, PixInsight, Lightroom and Photoshop.

 

203 views
3 faves
0 comments
Uploaded on April 12, 2020