Whirlpool Galaxy - M51 (James Hawks)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4277 · IC 4278 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

Powered byPixInsight

Whirlpool Galaxy - M51

Powered byPixInsight

Whirlpool Galaxy - M51

Messier 51, aka Whirlpool Galaxy, is ~31 million light years away. It is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus in the constellation Canes Venatici. It was the very first galaxy to be classified as a spiral galaxy.

This unguided image was captured, in a Queen Creek (Arizona) Bortle 7 backyard, using a Celestron EdgeHD 11" telescope with a 0.7x focal reducer. The telescope is mounted on a 10Micron GM2000 HPS II mount. The camera is a ZWO ASI 2600MC Pro using a Astodon OSC UV-IR Cut filter and an Optolong L-Enhance filter. The image is comprised of 171 200 second UV-IR exposures and 90 300 second L-Enhance exposures. It was captured over 5 nights (4-9-2022 to 4-25-2022). The images were stacked/processed in Pixinsight and fine-tuning done in Photoshop.

Acquisition:
   Location: Queen Creek, AZ Bortle 7
   Dates: 2022-04-09 to 2022-04-25
   Lights (Dithered, Cooled 0°C, Gain 100):
       171 x 200s (UV-IR)
       90 x 300s (L-Enhance)
   Darks: 25
   Flats: 25
   Dark Flats: 25

Hardware:
   Camera: ZWO ASI 2600MC PRO
   Scope: Celestron EdgeHD 11"
   Focal Reducer: Celestron 0.7x
   Focuser: Prodigy Microfocuser
   Guide Camera: Unguided
   Guide Scope: Unguided
   Mount: GM2000 HPS II
   Filter: Astrodon OSC UV-IR Cut

Software:
   SGP
   Pixinsight
   Photoshop

Processing:
   Repeated separately for UV-IR and L-Enhance
       Stacked in Pixinsight (WBPP, Separate RGB, SubframeSelector, ImageIntegration)
       Pixinsight (ChannelCombination, DCrop, ABE, EZDenoise, MaskedStretch, StarNet2)
   Extract HA from L-Enhance mix with Main RGB Image
   AstroFlat Pro in Photoshop
   Camera Raw Filter in Photoshop
   Color/Levels Adjustments

N.I.N.A. Users

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	5712589
PixInsight job	HZGIWPJDHZP9NJ47GGIYF93RVASDWCS5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h29m59s.239
RA (top/left)	13h28m41s.692
RA (top/right)	13h28m43s.600
RA (bottom/right)	13h31m15s.743
RA (bottom/left)	13h31m15s.727

Dec (center)	+47°12′07″.76
Dec (top/left)	+47°31′29″.80
Dec (top/right)	+46°52′38″.43
Dec (bottom/right)	+46°52′42″.40
Dec (bottom/left)	+47°31′36″.100

Image Index:

Contribution Index (beta):

Whirlpool Galaxy - M51

Whirlpool Galaxy - M51

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Whirlpool Galaxy - M51

Whirlpool Galaxy - M51

Equipment

Acquisition details

Description

Comments

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?

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