Sh2-188 The Shrimp Nebula (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD236773 · HD8992 · HD9352 · LBN 633 · PK128-04.1 · Sh2-188

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Sh2-188 The Shrimp Nebula

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Sh2-188 The Shrimp Nebula

This is the faint but interesting planetary nebula Sh2-188, sometimes called the Dolphin Nebula.
It lies in Cassiopeia a little more than 711 light years away. It is estimated to be around 7,500
years old. Although it is circular, it is much brighter to the southwest because the star that is
energizing the nebula is moving rapidly in that direction.

I basically imaged this with a L-Extreme filter. However, I also used the L-Pro (6 x 600 sec)
to get better star colors. But I also find I get more star Halo with that filter.

Information Credits: Astro Doc

Telescope: Explorer Scientific 127mm CF APO Refractor f/7.5 (952mm Focal Length)
Explore Scientific X0.7 Reducer f/5.25 (667mm Focal Length)
Mount IOptron CEM40

Camera ZWOASI6200MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO EFW

37 X 300 Second Exposures W/Optolong L-Extreme Filter (6nm)
18 X 600 Second Exposures W/Optolong L-Extreme Filter (6nm)
6 X 600 Second Exposures W/Optolong L-Pro Filter
30 Dark Frames/30 Flats
Total Integration Time: 7 Hours 5 Minutes
Acquisition with SharpCap
Stacked with Astro Pixel Processor
Guiding PHD2
Processed with Astra Image
Photo taken from Seven Lakes, NC Bortle 4.5

AstroBin Platform open discussions community forum
ZWO ASI 2600MC PRO

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Status	Advanced success
Started	...
Astrometry.net job	6334869
PixInsight job	R5Q9LDDHA63K4NINIXM1I9MI808MW917
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h30m41s.26
RA (top/left)	01h26m56s.85
RA (top/right)	01h29m01s.40
RA (bottom/right)	01h34m21s.51
RA (bottom/left)	01h32m24s.62

Dec (center)	+58°26′21″.5
Dec (top/left)	+58°46′03″.4
Dec (top/right)	+57°53′40″.6
Dec (bottom/right)	+58°06′15″.6
Dec (bottom/left)	+58°58′57″.4

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Sh2-188 The Shrimp Nebula

Sh2-188 The Shrimp Nebula

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