Andromeda M31 from Northern Denmark (Nordjylland) Black/White (pptw)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224

Andromeda M31 from Northern Denmark (Nordjylland) Black/White, pptw

Powered byPixInsight

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Powered byPixInsight

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Reprocessing of my previous M31 shot. Weather in Denmark has been horrible so more time is spend behind the screen than under the clear skies.

In the last 2 months I have acquired some more techniques for better proccessing. This image is based on 20 minutes of exposure under bortle 3-4.

40x 30s at ISO400

No darks, no flats, no bias, no filters.

My goal was to keep noise low and not to blow any stars out. I achieved this (to some extend) by creating a star layer early in the process, before pulling more details out in the andromeda galaxy. Stretching of curves, layers, etc was mostly done after stars were extracted. Stars were extracted based on image scale (frequency) rather than amplitude. Since this short exposure contains very limited color, and I could not achieve a astisfactionary colors result without overstretching things I decided to keep things colorless. Therefore; my black and white version of the Andromeda Galaxy.

Feedback is very welcome.

Original
Final
B

B

Description: Higher dynamic range

Uploaded: ...

"Nordish by nature"

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	Basic success
Started	...
Astrometry.net job	4132916
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Andromeda M31 from Northern Denmark (Nordjylland) Black/White

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information