Messier 100 (Rick Veregin)

Messier 100

Acquisition type: Lucky imaging

Messier 100, with its well-defined spiral arms, is a grand design spiral galaxy, one of the brightest and largest members of the Virgo cluster, and about 55 million light-years distance from us. Messier 100 is a starburst galaxy, with strongest bursts of star formation concentrated within a ring in the centre of the galaxy. Also, Messier 100 has been active with seven observed supernova, the latest SN2020oi discovered 2020/01/07.542 by the Zwicky Transient Facility (a good reference to the supernova is: http://www.rochesterastronomy.org/supernova.html#2020oi

The supernova is located at the bright spot directly under (North) of the bright central core. The supernova has faded, so in my image it is difficult to tell how much of the brightness is due to the supernova, and how much to the central knots around the core. Since I don't have my own base image of M100, I plan to image next year--watch this space for a comparison of the two images. Also, a good target to watch anyway, with supernova in both 2019 and 2020. Here's to good SN hunting!

This image was drizzled 3x in DSS to help bring out the fine detail.

Original
Final
B

B

Description: While waiting, somewhat patiently for some passable clear skies, I had time on my hands to redo my Startools processing:
- Stars more in control, but a little deeper in the nebulosity. I combined layers in Photoshop to enable this.
- Lower noise from the processing, with a less severe stretch, led to less noise reduction & better detail

Nothing dramatic in my processing that I can point to, except spending more time, and paying more attention at each step that I am not messing something up. I feel like a doctor, do no harm to the image, and it does seem to work.

Uploaded: ...

Canadian Astrophotography
Short exposures DSO
AstroBin Platform open discussions community forum
Light Polluted skies
Schmidt-Cassegrain Telescope (SCT) Imagers

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	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

	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

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	4040773
PixInsight job	BMW61AS8E3HMKVHMIOSQFLHVAT2ASB2I
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h22m54s.289
RA (top/left)	12h22m07s.951
RA (top/right)	12h23m44s.402
RA (bottom/right)	12h23m40s.754
RA (bottom/left)	12h22m04s.970

Dec (center)	+15°49′17″.27
Dec (top/left)	+15°40′52″.42
Dec (top/right)	+15°42′12″.96
Dec (bottom/right)	+15°57′42″.80
Dec (bottom/left)	+15°56′21″.13

Image Index:

Contribution Index (beta):

Messier 100

Messier 100

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Messier 100

Messier 100

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