Sh2 129 OU4 The Giant Squid (Jerry Yesavage)

Sh2 129 OU4 The Giant Squid

An new ZWO view with H-alpha and O-III finally columated. Worth the wait given the small number of frames used to get this.

Thanks to everyone who helped getting me through the set up of this camera.

From GalaxyMap:

This massive star formation region is associated with a 7000 solar mass molecular cloud and many sources in the far infrared.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

There are 313 Sh2 objects and I have imaged all one way or another.

The first one was taken on December 23, 2013 and the series completed October 17, 2019.

Some of the challenges with this series are FOV size and low declination:

FOV: There are 11 too diffuse/large to image well with my set up (Sh2 111, 117, 122, 131, 132, 145, 178, 218, 230, 268 and 310). I have imaged the first 6 of these mostly in the Nikon Wide angle shot referenced below and 178 and 230 as part of other images.

DEC: There are 5 that are never above 14 DEG (Sh2 2-6) but as of 7/12/21 I can get these now with pier upgrades and the images are completed as best as I can.

EQUIPMENT: Many were taken with my old Tak 180 ED, which had a wide field of view, but was replaced with my Stellarvue 130, which is more narrow field. I have also taken two very wide field HA images with my Nikon D800 and a 50mm lens. I transitioned from my CCD SBIG 8300M to a CMOS ZWO ASI6200M Pro in September 2021.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 1500 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

Light Polluted skies
ASI 6200 MM Pro
The refractors!
Cloudy Nights
Members of Deep Sky West
Suburban Astrophotography
SF Bay Area Imagers
Astrophotographes (France)
PixInsight Addicts
Narrowband imaging
"Simply Stellarvue"
Sharpless2 Objects

Sharpless2 Objects

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	5295320
PixInsight job	INUR7HALXDE44D4HXSPW3TK47IUM736G
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h11m54s.330
RA (top/left)	21h16m40s.301
RA (top/right)	21h16m54s.388
RA (bottom/right)	21h06m53s.573
RA (bottom/left)	21h07m08s.461

Dec (center)	+59°59′56″.36
Dec (top/left)	+59°10′08″.40
Dec (top/right)	+60°49′03″.62
Dec (bottom/right)	+60°49′01″.85
Dec (bottom/left)	+59°10′06″.24

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