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Image of the day 05/06/2023

    Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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    Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3

    Image of the day 05/06/2023

      Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
      Powered byPixInsight

      Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3

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      In December of 2021 I discovered this really insane structure in the continuum of Oiii embedded in the small Sagittarius star cloud, m24. This structure belongs to the supernova remnant G013.3-01.3 http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G013.3m01.3, which @Marcel Drechsler identified on my behalf. The keen amongst you may also notice there is a StDr object within the field of this image! Its that little blue guy on the left of the star cloud StDr 156 (https://planetarynebulae.net/EN/page_np.php?id=1061). My lack of knowledge of astrophysics gets the better of me here, because I can't really offer an explanation of how this insane structure is forming. All I can offer is: wow this thing is weird looking! Would love to shoot this at a higher focal length some day, because the structure is amazing.

      I am giving these the name "the blue sprites" because they remind me of the red sprites which form during thunderstorms

      EDIT: 

      after reading about this thing's initial discovery paper I noticed there were some initial discovery images oh the H-alpha structure, however the Oiii was not known. Here is the inital Ha image in 1995. Also note this discovery image doesn't cover the H-alpha structure which goes on for ages on the opposing side of the dust cloud.
      Screen Shot 2023-05-06 at 6.32.35 PM.jpg

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        Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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        Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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        Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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        Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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        Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls
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      B

      Title: starless

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      C

      Title: Oiii RGB

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      D

      Title: ha rgb

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      Description: full FOV

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      Blue Sprites in the Small Sagittarius Star Cloud: First Complete Optical Image of SNR G013.3-01.3, Bray Falls