Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic) (Ian Parr)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: NGC 6451 · NGC 6480

Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic), Ian Parr

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Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

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Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

This is 9 Panel Mosaic Field around the 3rd magnitude star Alnasal in Sagittarius, somewhat inspired by a nice thumping big copy of Edward Emerson Barnards's A Photographic Atlas of Selected Regions of the Milky Way I bought a few years back. A fabulous and inspirtational book from an era when Astrophotography was serious hard work; it still is, but now we do it from the warm comfort of indoors rather than hours freezing manual guiding at an eyepiece. This is an area within Plate 27 of that mighty tome. It consumed quite a lot of my time back in August 2020 and I was never comfortable with the processing result. Even with a 28 core Threadripper and 128 Gb of Ram and CUDA running flat out, this still takes a LOT of time to re-process.

The Red blob is Baade's Window.

So the moral of the story is, mosaics are for chumps.

Something llike a RedCat 71 with a 6x4 degree field of view would be better suited as would a nice dark sky far, far away from light pollution deep in the Australia outback.

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	Distinct awarded users	Total awarded images
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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
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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
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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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Status	Basic success
Started	...
Astrometry.net job	7720667
PixInsight job	n/a
PixInsight queue size	n/a
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Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

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Image Index:

Contribution Index (beta):

Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

Field around Alnasal in Sagittarius in RGB (9 Panel Mosaic)

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Acquisition details

Description

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Sky plot

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