M101 from the Suburbs (lowenthalm)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5447 · NGC 5449 · NGC 5450 · NGC 5451 · NGC 5453 · NGC 5455 · NGC 5457 · NGC 5461 · NGC 5462 · NGC 5471 · Pinwheel galaxy

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M101 from the Suburbs

Acquisition type: Lucky imaging

Powered byPixInsight

M101 from the Suburbs

Acquisition type: Lucky imaging

Well, it is M101 season, so I decided to give it a shot. Its hard for me to image from my suburban backyard because it fills me field of view, making it difficult to properly remove light pollution vignettes, despite it normally being pretty easy to remove with Fitswork. For this reason, I haven't tried doing a deeper exposure of this object from home. As expected the light pollution vignette was really difficult to remove, requiring some tricky processing to almost completely remove it.

Seeing was pretty good, but not great the nights I collected this data. Someday, I'll collect a much nicer image from a dark sky site that won't have any major vignettes to remove and will show the fainter outer regions!

Each of the 9 eight minute images that were stacked to produce this image were themselves live-stacked in Sharpcap, each composed of 240 two second exposures.

Original
Final
B

B

Description: Noticed the last processing step reduced saturation a bit, so I readjusted it.

Uploaded: ...

Astrophotography with Dobson
Arp's Peculiar Galaxies
Suburban Astrophotography

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Star trails
Northern lights
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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	3476153
PixInsight job	OQ9P75UQ39POO5RI3NJ0GSIPHLXII1WF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	14h03m11s.347
RA (top/left)	14h01m15s.689
RA (top/right)	14h02m43s.526
RA (bottom/right)	14h05m06s.223
RA (bottom/left)	14h03m39s.595

Dec (center)	+54°21′19″.91
Dec (top/left)	+54°30′00″.75
Dec (top/right)	+54°02′50″.39
Dec (bottom/right)	+54°12′31″.30
Dec (bottom/left)	+54°39′48″.86

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M101 from the Suburbs

M101 from the Suburbs

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M101 from the Suburbs

M101 from the Suburbs

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