Elephant Trunk Nebula, IC 1396, Hubble Palette, Narrow Field, Composite Image, Summary (Eric Coles (coles44))

Elephant Trunk Nebula, IC 1396, Hubble Palette, Narrow Field, Composite Image, Summary

This is a Summary of the four composite images using a section of the tone map from an earlier post of the Elephant Trunk Nebula (http://www.astrobin.com/100464/) and luminosity from the NOAO two-tone image (This is the link to the center and recognizable portion of the Elephant Trunk http://www.noao.edu/image_gallery/html/im1172.html), Credit T.A. Rector (University of Alaska Anchorage), H. Schweiker & S. Pakzad (NOAO/AURA/NSF) for all the high-rez images of the Elephant Trunk.

In this image we show the location of each of the less recognized narrow field images from NOAO as compared to the wide field image.

Plate Solve for the Large Image

PLATE Solve

Center (RA, Dec): (324.690, 57.482)

Center (RA, hms): 21h 38m 45.719s

Center (Dec, dms): +57° 28' 55.269"

Size: 4.81 x 3.21 deg

Radius: 2.892 deg

Pixel scale: 5.56 arcsec/pixel

Orientation: Up is -88.2 degrees E of N

The three square narrow field images had a Radius of 0.439 degrees. The center narrow field image had a Radius of 0.301 degrees.

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.

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