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Old 01-11-2020, 11:27 AM
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MLParkinson (Murray)
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Join Date: Aug 2010
Location: Heathcote, Sydney
Posts: 209
Shocks and Tendrils of the Vela Supernova Remnant

Here is my latest portrait of the Vela Supernova remnant. I have mapped the Hydrogen alpha data to red and the OIII data to teal. One version includes the RGB stars at the expense of detail in the nebulosity. For the other version, the stars were removed using Starnet ++ to emphasise the intricate tendrils of the Oxygen nebulosity. I think I prefer the version with no stars because of intricate detail revealed. I know some of you consider star removal a tedious fad, but it does reveal more detail in the nebulosity. Please feel free to offer a different opinion.

Higher (though not full) resolution versions are here:

https://flic.kr/p/2k2brhx

https://flic.kr/p/2k2bWzS

Technical Details:

Borg 55 mm f/3.6 Astrograph, Astrodon 3-nm H alpha and OIII filters, QSI 683wsg camera. Mount: EQ8. Two part mosaic imaged from suburban Sydney.

Hydrogen alpha: 64 x 20 minutes = 21 hours, Oxygen III: 61 x 20 minutes = 20 hours.

Software: Nebulosity 4, PHD 2, PixInsight, StarNet++, Lightroom and Photoshop.
Attached Thumbnails
Click for full-size image (2020_04_16_Vela_SNR_Borg_200mm_HaOIII_Starless.jpg)
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Click for full-size image (2020_04_16_Vela_SNR_Borg_200mm_HaOIII_RGB_Stars.jpg)
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