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Planetary Nebula PN G75.5+1.7 - Soap Bubble


Herbert West

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Time for another one of Cygnus' jewels. This time it's PN G75.5+1.7. It's a fairly young planetary nebula in the nearest neighborhood of NGC6888. It's visible in Ha as well as in OIII. It's subtle yet striking- nearly perfectly symmetrical, unblemished bubble floating among dramatic clouds of hydrogen and oxygen. Presented in bicolor (Ha = red, OIII = blue).

 

SB_V2_TDN_FINAL.thumb.png.e5be80549be5e120d4afd24c3f6fe7af.png

Starless:

SB_V2_TDN_FINAL_STARLESS.thumb.png.9c08a661fa58b64e3f734cf8340b3c1a.png

Ha:

H.thumb.png.35877a91794521d1548c0966312e7404.png

OIII:

O.thumb.png.47f8273b4fc60b63750416dc206169e7.png

 

Imaged from my backyard in rural Poland, Bortle 4 in July 2022.

1. Ha- 57 x 300s.

2. OIII- 136 x 300s.

 

Gubbins:

Telescope: SkyWatcher Maksutov-Newtonian MN190, 190/1000 mm

Camera: ASI1600MMP,

Filters: Baader Ha 7nm, Antlia OIII 3nm,

Mount: SkyWatcher EQ6PRO

Guider: SvBony 240mm, ASI120MM mini,

Other stuff: ZWO EFW, ZWO EAF, ASIAir V1

 

Processed and stretched in Pixinsight. Channels combined in Photoshop with some additional color, contrast and saturation work.

Pseudo-RGB stars are made from HOO (R=Ha, G=.8xO+.2xHa, B=O) + some color tweaks, stretched separately and inserted as a layer in PS.

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