M51 - Whirlpool Galaxy (Phobos226)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 51 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool Galaxy

Powered byPixInsight

M51 - Whirlpool Galaxy

Powered byPixInsight

M51 - Whirlpool Galaxy

Captured on 19-04-2020 with a Skywatcher 130PDS, OnStep converted EQ5 mount and DIY focuser, Canon 400D and SkyTech CLS clip filter under Bortle 5 skies.

Less integration time than I would have liked and difficult to remove the colour cast from the CLS filter in this instance. There was a problem with my flats as well and a strange ringing pattern I struggled to get rid of. Not entirely sure how that came about as I followed my usual procedures of using a homemade LED panel lightbox.

Difficult to make out a huge amount of detail at this resolution, even when Bayer Drizzled x2 using Astro Pixel Processor, but a substantially better image than the last time I imaged this with a barn door tracker and 200mm zoom lens.

Had to pull the background right back and crank up noise reduction to get rid of an extremely noisy background that was showing up as a mottled mess.

Would have liked to keep the background a little higher and with less overall contrast ideally, as it is starting to look over processed and I am losing a little of that faint detail that bleeds off of NGC 5195. It's there on my monitor, but my phone screen doesn't pick it up owing to calibration differences.

I particularly enjoy the nice blobs of Ha that are showing up in the spiral arms and the contrast of those deep browns in the dust lanes is fantastic to see.

Comments are closed.

Original
Final
B

B

Description: Rebalanced colour. Brought BG up and noise down

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	Basic success
Started	...
Astrometry.net job	3439369
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M51 - Whirlpool Galaxy

M51 - Whirlpool Galaxy

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M51 - Whirlpool Galaxy

M51 - Whirlpool Galaxy

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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