NGC281 - Hubble Palette (Thomas Richter)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1590 · NGC 281 · Sh2-184

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NGC281 - Hubble Palette

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NGC281 - Hubble Palette

The new Ha-data were captured on a Raspberry PI4 (4GB RAM) with Ubuntu Server 18.04 by CCDCiel over INDIlib.

Object description (wikipedia.org):

NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin. A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

E. E. Barnard discovered this nebula in August 1883, who described it as "a large faint nebula, very diffuse." Multiple star 'B 1' or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec. There has been no appreciable change in this quintuple system since the first measures were made in 1875.

Final
Original
B

B

Description: new H-alpha data captured on Raspberry PI4

Uploaded: ...

Narrowband imaging
Nuremberg Public Observatory
Astrofreunde-Franken

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	2943205
PixInsight job	F0FTSU3KICLL8660QOSXE1RQMUD2HVEW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h52m54s.996
RA (top/left)	00h52m16s.935
RA (top/right)	00h50m11s.483
RA (bottom/right)	00h53m32s.173
RA (bottom/left)	00h55m40s.630

Dec (center)	+56°37′38″.75
Dec (top/left)	+57°04′16″.65
Dec (top/right)	+56°22′33″.64
Dec (bottom/right)	+56°10′59″.99
Dec (bottom/left)	+56°52′29″.99

Image Index:

Contribution Index (beta):

NGC281 - Hubble Palette

NGC281 - Hubble Palette

Equipment

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In these public groups

Image Index:

Contribution Index (beta):

NGC281 - Hubble Palette

NGC281 - Hubble Palette

Equipment

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Description

Comments

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B

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