NGC 2403 (Tom Harrison)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403

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NGC 2403

Link: http://www.manoprietoobservatory.com/gallery/galaxies/155

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NGC 2403

Link: http://www.manoprietoobservatory.com/gallery/galaxies/155

NGC2403 is a relative close galaxy, just outside our local group of galaxies toward the Constellation Camelopardalis, somewhere between 8-10 Million Light-Years distant. It has a similar morphology to M33. It is rich in bright new blue star forming regions and many massive pink HII regions. One of the brightest supernovas of modern times was noted in 2004. The HII regions are numerous and massive, the largest being over 2000 Light-Years in diameter. It is associated with the M81 group of galaxies. It is the first galaxy beyond the local group in which Cepheid variables (standard candles) were found.

Object: NGC2403

Distance: 8-10 Million Light-Years

Magnitude:

Date: January 2010

Place: Fort Davis, Texas

Exposure Details: LRGB:600:180:210:270 unbinned

Processing: MaxIm DL, CCDInspector, CCDStack, Photoshop CS3

Optics: 12.5" RCOS Truss

Focal Length: 2808mm @ f9

Mount: Paramount ME Robotic

Camera: SBIG STL6303E

Focuser: RCOS

Guiding: Off-Axis with SBIG Guide Camera

Filters: Tru-Balance LRGB Gen II 2"

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	6521698
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 2403

NGC 2403

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Image Index:

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NGC 2403

NGC 2403

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