Abell 85 / CTB-1 (pete_xl)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 9 Cas · LBN 576 · The star 9Cas

Powered byPixInsight

Abell 85 / CTB-1

Powered byPixInsight

Abell 85 / CTB-1

Abell 85 is a supernova remnant in Cassiopeia. It is also a radio source (CTB-1). Abell 85 is a quite a dark object that emits light in the emission colors of hydrogen (Ha), sulfur (SII) and oxygen (OIII). The OIII emission is quite weak and the brighter structures are built up by SII and Ha. While SII is not as present in the background as Ha the brighter locations of the two emission colors are more or less identical. To show all three gas emission signals I gave SII the advantage over Ha in the bright structures and let Ha dominate the background. SII and Ha both shine in red colors. To have them separated in the image SII is represented in yellow color tones, Ha in red and OIII in blue tones. The stars are shown in their original colors.

Zwo ASI1600mmp and TS Photoline 130/910 mm with 0.7x reducer.

92 x 300s Ha with Baader 7nm Filter

100 x 300s SII with Baader 8nm Filter

100 x 300s OIII with Baader 8nm Filter

29 x 30s red

28 x 30 s green

30 x 30s blue

Astro PIxel Processor and PS CC 2019

Cloudy Nights
N.I.N.A. Users
Narrowband imaging

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	3026685
PixInsight job	537QWEH1UXTTFMQHO9EJMZ7UZUNTDOJ2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h59m20s.47
RA (top/left)	23h52m15s.18
RA (top/right)	23h57m54s.54
RA (bottom/right)	00h06m27s.87
RA (bottom/left)	00h00m51s.30

Dec (center)	+62°25′42″.5
Dec (top/left)	+62°21′04″.2
Dec (top/right)	+61°37′14″.4
Dec (bottom/right)	+62°29′00″.1
Dec (bottom/left)	+63°14′06″.4

Image Index:

Contribution Index (beta):

Abell 85 / CTB-1

Abell 85 / CTB-1

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Abell 85 / CTB-1

Abell 85 / CTB-1

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