M101 (jeremy.wiggins)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5422 · NGC 5447 · NGC 5449 · NGC 5450 · NGC 5451 · NGC 5453 · NGC 5455 · NGC 5457 · NGC 5461 · NGC 5462 · NGC 5471 · NGC 5473 · NGC 5474 · NGC 5477 · NGC 5484 · NGC 5485 · NGC 5486 · Pinwheel galaxy

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M101

Powered byPixInsight

M101

Pre-processing (PixInsight 1.8.5)

1. Cosmetic Correction

2. Debayer

3. Subframe Selector to weight and select frames

4. Star Alignment, generating Drizzle data

5. Local Normalization

6. Drizzle Integration

Processing (PixInsight 1.8.5)

1. Fast Rotation

2. Dynamic Crop

3. Dynamic Background Extraction using subtraction

4. Dynamic Background Extraction using division

5. Background Neutralization

6. Photometric Color Calibration

7. SCNR, removing 80% green

8. Deconvolution using synthetic PSF & start mask for local support

9. Histrogram Transformation

10. Color Saturation

11. ACDNR

12. Color Saturation using inverted range mask to desaturate background

13. Several Curves adjustments using masks to adjust saturation / color channels

14. Color Saturation using inverted range mask to desaturate background

15. HDR Multiscale Transform

16. Resample

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	3378455
PixInsight job	OX7W6OLPGI9GYF182FYP3Z151E3LC2CX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	14h03m38s.170
RA (top/left)	14h00m04s.998
RA (top/right)	13h59m43s.298
RA (bottom/right)	14h07m02s.763
RA (bottom/left)	14h07m42s.309

Dec (center)	+54°24′15″.46
Dec (top/left)	+55°14′24″.78
Dec (top/right)	+53°36′36″.00
Dec (bottom/right)	+53°33′42″.20
Dec (bottom/left)	+55°11′24″.94

Image Index:

Contribution Index (beta):

M101

M101

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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Image Index:

Contribution Index (beta):

M101

M101

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

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IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

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