M74 (Denis Dumas)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: M 74 · NGC 628 · PGC 138413 · PGC 138420 · PGC 138421 · PGC 138422 · PGC 1488343 · PGC 1489730 · PGC 1494837

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M74

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M74

Well, it has been exactly one year since I started this hobby of astrophotography!

I am still working out issues with my setup - I finally set my backfocus correctly so this image plate solves to the correct focal length, and there is a lot less distortion of the stars but it is not all gone. I have some guiding issues to improve, and my star colors are still a little off but much better than my last images. I am also learning tons on how to use PixInsight so my image processing continues to improve. I've just learned (with some help) that my collimation is off so that will affect the image significantly, so much to improve yet!

This evening the moon was a few days old and set very early, so it was a moonless night.
Average to below average transparency. Some light clouds rolling through the sky during this imaging session so the background in this image was difficult to tame.
Average seeing.
Temperature dropped to 0C during the night, lots of dew and frost buildup on my equipment.

Original
Final
B

B

Description: Continue working on stars, deconvolution to reduce blurring and morphological transformation to dim stars and improve colors.

Uploaded: ...

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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
Own remote observatory
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.
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.
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	5239173
PixInsight job	GSQOAZ9BB4PC5UBRFJIM9VGOLMK0YRZA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h36m42s.280
RA (top/left)	01h38m05s.290
RA (top/right)	01h35m15s.150
RA (bottom/right)	01h35m19s.225
RA (bottom/left)	01h38m08s.716

Dec (center)	+15°46′59″.99
Dec (top/left)	+16°01′34″.40
Dec (top/right)	+16°00′11″.88
Dec (bottom/right)	+15°32′23″.56
Dec (bottom/left)	+15°33′45″.89

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M74

M74

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Image Index:

Contribution Index (beta):

M74

M74

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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