[Chart] Apparent Size Comparison – Deep Sky Objects (Nick Large)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 19 Tau) · 25 Tau) · Barnard's Merope Nebula · IC 341 · IC 349 · IC 354 · Maia Nebula · Merope Nebula · NGC 1432 · NGC 1435 · The star 13 Tau · The star 18 Tau · The star 32 Tau · The star Alcyone (η Tau · The star Atlas (27 Tau) · The star Celaeno (16 Tau) · The star Electra (17 Tau) · The star Merope (23 Tau) · The star Pleione (28 Tau) · The star Taygeta (q Tau

[Chart] Apparent Size Comparison – Deep Sky Objects

This chart shows the relative apparent size of some of the most popular DSOs.
The moon, with an apparent size of 0.52 degrees is shown for comparison.

More Reading:

Check out the @Trevor Jones' article on his Astrobackyard Website "Astrophotographer Spends 4 Years Creating Deep-Sky Object Size Comparison Chart".

Check out the The School's Observatory Website at the Liverpool John Moores University, UK.

Check out Astromania's article from @Tõrva Astronoomiaklubi "Süvataeva objektid ja nende suurused taevas" ("Deep sky objects and their sizes in the sky").

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Themed Compilation Posters
Texas Astronomy
Astrophotographes (France)
Suburban Astrophotography
DSLR and mirrorless astrophotography

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.

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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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PixInsight job	EZ03YOJI72XGACIX4VF6C770Y1B8ATPH
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[Chart] Apparent Size Comparison – Deep Sky Objects

[Chart] Apparent Size Comparison – Deep Sky Objects

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[Chart] Apparent Size Comparison – Deep Sky Objects

[Chart] Apparent Size Comparison – Deep Sky Objects

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