Newtonian OOH and SHO narrowband images of NGC281 with RGB stars (Tim Hawkes)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1590 · NGC 281

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars, Tim Hawkes

Powered byPixInsight

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

Powered byPixInsight

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

1.5 h HA and 3h O3 images taken using a mono camera were combined into a narrowband OOHa image of NGC281 at F 5.0, f = 1000 mm. 2h of SII were further combined in to create an SHO image. After normal processing and then the use of starnet to converty to starless images he NB image was combined using PI pixmath with red 100% HA, green 100% O3 and blue 15% HA plus 85% O3. HA was dominant throughout the nebula and to add detail HA was used as luminance. RGB stars from a 1.5 h OSC camera image taken through a UHC filter were then added to the NB image. Capture was with Sharpcap and preprocessing plus processing (background removal, noise reduction, photometric colour calibration and curves) was carried out using PixInsight. THe SHO image included 2h of S2 imaging using a 6nM Optolong filter.

NGC 281 is an emission nebula - spanning 35 arcmin- within an H II region in the Perseus Spiral Arm and surrounds the open cluster IC 1590 within which the multiple star, B 1 is a major source of ionizing UV. This Multiple star 'B 1' comprises an O6 spectral class star, HD 5005 or HIP 4121 which is the 8th-magnitude primary and four smaller companion stars. NGC281 is about 9200 ly distant and spans about 48 ly across.

Original
Final
E

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	6947988
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

Newtonian OOH and SHO narrowband images of NGC281 with RGB stars

Equipment

Acquisition details

Description

Comments

Revisions

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?

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