Cat's Eye Galaxy - M94/NGC4736 (Drew Evans)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 94 · NGC 4736

Powered byPixInsight

Cat's Eye Galaxy - M94/NGC4736

Powered byPixInsight

Cat's Eye Galaxy - M94/NGC4736

Probably the toughest galaxy I have yet to image, this is the Cat's Eye Galaxy (M94 / NGC4736) in Canes Venatici.

Data acquisition over the span of 3 evenings at a native focal length of 2032mm with my Celestron 8" Edge HD SCT (no reducer) at f/10.

7.72 hours total acquisition time

M94 is oddly shaped, having two ring structures. It has an inner ring of newly formed stars surrounding its nucleus, giving it not only an unusual appearance but also a strong interior glow.

Recent observations have revealed the outer, fainter ring is not closed and relatively complex. M94 spans about 30,000 light years, lies about 15 million light years away, and can be seen with a small telescope toward the constellation of the Canes Venatici.

OTA: Celestron 8" Edge HD SCT f/10 2032mm focal length
Camera: ZWO ASI2600MC Pro
129 x 120s = 4.3 hours
41 x 300s = 3.42 hours
Gain: 100
Filters: none used
Cooling Temperature: -10 Celsius
Mount: Celestron CGX-L with QHY Polemaster alignment
Auto-guiding: ZWO ASI174MM Mini and ZWO M68 OAG
Control: ZWO ASIAIR Pro

Calibrated in Astro Pixel Processor⁣
Processed in Pixinsight and Lightroom
Flagstaff, AZ - Bortle 4 skies

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	5055178
PixInsight job	9W33QFI3RJBNE5WZB201MV4YO7D8L712
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h50m48s.682
RA (top/left)	12h52m13s.714
RA (top/right)	12h51m32s.899
RA (bottom/right)	12h49m22s.989
RA (bottom/left)	12h50m04s.957

Dec (center)	+41°06′58″.88
Dec (top/left)	+40°50′59″.99
Dec (top/right)	+41°28′02″.91
Dec (bottom/right)	+41°22′53″.99
Dec (bottom/left)	+40°45′53″.91

Image Index:

Contribution Index (beta):

Cat's Eye Galaxy - M94/NGC4736

Cat's Eye Galaxy - M94/NGC4736

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Cat's Eye Galaxy - M94/NGC4736

Cat's Eye Galaxy - M94/NGC4736

Equipment

Acquisition details

Description

Comments

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?

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