Sh2-188: The Dolphin Nebula

Image Title: Sh2-188 "Shrimp Nebula" Collaboration HSO

Copyright: Copyright: Hunter Outten, Kaleb Jordan, Chuck Ayoub

Date image was taken: September 01, 2025

Location: Laurel, DE USA
Houston, TX
Detroit, MI

Data Acquisition Method: Personal Telescope Setup

Description and Details: Recent collaboration project with 4 separate scopes and cameras between Hunter Outten, Kaleb Jordan, and chuck Ayoub

Sh2-188, known as the Shrimp Nebula, is a remarkable planetary nebula in the constellation Cassiopeia, located roughly 850 light years away. It spans about 13 light years across, making it quite large for a planetary nebula. Unlike the nearly spherical shells common to many objects of this type, Sh2-188 has a striking crescent-shaped arc with long, faint trailing filaments, giving it the appearance of a cosmic shrimp.

Sh2-188 is believed to be around 20,000 to 25,000 years old, placing it in a relatively advanced evolutionary stage for a planetary nebula. The fading central star has already shed its outer layers, leaving behind the delicate arcs and filaments that we see today.

Ha 153x240"
Ha 240x120"
Oiii 161x240"
Oiii 240x120"
Ha/Oiii 120x600"
Ha/Oiii 240x300"
Sii 240x120"

Equipment:
Telescopes: Explore Scientific ES127 | Explore Scientific ES102 | Sky-Watcher Quattro 150P | Svbony SV503 102ED
Cameras: ZWO ASI1600MM Pro | ZWO ASI585MM Pro | ZWO ASI585MC Pro
Mounts: Celestron CGX (I think?) | ZWO AM5 | Sky-Watcher HEQ5 Pro
Filters: Astronomik Ha | Astronomik Oiii | Antlia Edge 4.5NM Ha | Antlia Edge 4.5NM Oiii | Optolong L-Extreme

Name: Hunter Outten

Website or Facebook Profile: http://app.astrobin.com/u/OuttenAstrophotography#gallery