M-33 - An H-alpha Sampler (Steve Solon and Terry Chatterton)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: IC 131 · IC 142 · IC 143 · M 33 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

M-33 - An H-alpha Sampler, Steve Solon and Terry Chatterton

Powered byPixInsight

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

Powered byPixInsight

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

The Triangulum Galaxy, M-33, is notorious for not only being a wonderful observing and imaging target, but also for harboring dozens of HII star-forming regions, most notably the monstrous NGC-604 at upper left. Since HII regions emit their own light, their gases having been ionized by nearby stars, a filter tuned to h-alpha wavelengths reveals them distinctly, as shown here. This image depicts the northeast quadrant of the galaxy as viewed from Earth. While smaller than both the Andromeda Galaxy and our own Milky Way, M-33, nevertheless, maintains the third seat in size among the members of the Local Group, and resides some 3.2 million light years away.

Original
B
Final
C

B

Title: A tweak or two

Uploaded: ...

C

Title: Hopefully fixing brightness issues.

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	8921085
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

M-33 - An H-alpha Sampler

Revision title: Hopefully fixing brightness issues.

Equipment

Acquisition details

Description

Comments

Revisions

B

C

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?

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