NGC 281 (hughsie)

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

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NGC 281

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NGC 281

NGC 281 is located in the constellation Casseopeia and is a bright emission nebula.

At it’s centre is a an open star cluster, IC 1590, an area of star formation contain very large, bright hot stars. It is thought that the radiation and strong solar winds are causing the concentrated interstellar gas to glow.

This image was captured across three nights using narrowband Chroma filters. These filters allowed me to capture light emitted by ionised Hydrogen alpha, Oxygen 3 and Sulphur 2.

The data was then combined to form the ‘Hubble Palette’ assigning Sulphur to the Red channel, Hydrogen to the Green channel and Oxygen to the Blue channel.

Data

Overall 17.5 hours of exposures was gathered;

Ha 70 x 5 mins

Oiii 70 x 5 mins

Sii 70 x 5 mins

Equipment used

William Optics Z103 refractor.

ZWO ASI1600mm Pro Cool camera.

Skywatcher EQ6R Pro Cool camera

Chroma 1.25” 3nm Ha, Oiii & Sii filters

Sesto Senso Robotic Focuser

ZWO 8 EFW

Sequence Generator Pro

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Original
Final
B

B

Description: The data for this image was originally acquired by me in September 2020.

I am currently in the process of re-organising all my image data files so that they work smoothly in PixInsight WBPP so making it easier to add further data in the future. On occasion, I will take the opportunity to re-process the same data using the new tools and techniques available in PixInsight.

This is one such occasion.

Uploaded: ...

Nebulae
Sharpless Catalogue

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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	9148059
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 281

NGC 281

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Image Index:

Contribution Index (beta):

NGC 281

NGC 281

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Description

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B

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