Sh2 177 (Jerry Yesavage)

Sh2 177

Revisiting my old friends with the new camera.

From GalaxyMap:

Sharpless and Avedisova both conclude that Sh 2-177 is ionised by the O9 V star BD +61 105.

Russeil combines Sh 2-172, Sh 2-173 and Sh 2-177 into one star formation region. All three nebulae lie in the direction of the expanding shell of gas and dust surrounding the Cas OB5 association.

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

There are 313 Sh2 objects. As of the date of this image I had imaged 310 (99%).

Here is the scorecard:

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. I will do the rest at least once as they come into view this year. I missed 303, 304 310 last year running out of time. So there are these 3 more to do here.

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.

The 3 remaining all are in Expert Scheduler waiting for them to pass by. They are all higher elevations.

The first one was taken on December 23, 2013.

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...

Cloudy Nights
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

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Status	Advanced success
Started	...
Astrometry.net job	5090125
PixInsight job	AYJKH5B0591T5FXGQ7U91YVC0959JAT6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h31m40s.859
RA (top/left)	00h22m24s.594
RA (top/right)	00h40m55s.936
RA (bottom/right)	00h41m26s.700
RA (bottom/left)	00h21m59s.190

Dec (center)	+62°27′47″.17
Dec (top/left)	+61°43′22″.94
Dec (top/right)	+61°42′57″.89
Dec (bottom/right)	+63°09′57″.91
Dec (bottom/left)	+63°10′21″.89

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Sh2 177

Sh2 177

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Image Index:

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Sh2 177

Sh2 177

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