Star Trails over Australia (Dean Carr)

Contains: Extremely wide field

Star Trails over Australia

This Star Trails image was taken during an interlude between deep space imaging at the Wiruna dark sky site in rural NSW, Australia.

The star trails are very long due to the 8+ hours of imaging. Although most people had left the site after completion of the main observing event, the accumulated light from torches was also quite striking.

This image utilized 2071x13-second subframes (Total exposure 7 hrs 28 min 43 sec, spanning 8 hrs 3 min 14 sec), omitting some of the earlier frames when the sky was still quite bright.

Processed using Nikon NX Studio, StarStax, and PixInsight.

General Concept. Three different products were developed from the same data - including Nightscape and Star Trails (still) images, as well as a Timelapse video. The idea was to use compromise exposure and other camera settings that enabled the production of all three products, albeit not necessarily ideal for any one of the products.

Images were taken using a Sigma 20mm f/1.4 lens on a Nikon D750 camera attached to a fixed tripod. In total, 2135x13-second subframes were taken with 14-second intervals at f/2 and ISO1600. Total overall exposure for the night was 7 hrs 42 min 35 sec, spanning 8 hrs 18 min 10 sec.

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 failed
Started	...
Astrometry.net job	8872849
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Star Trails over Australia

Star Trails over Australia

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Image Index:

Contribution Index (beta):

Star Trails over Australia

Star Trails over Australia

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Acquisition details

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