PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest (Ian Parr)

Celestial hemisphere: Southern · Constellation: Sculptor (Scl)

PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest, Ian Parr

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PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

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PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

The Sculptor Dwarf Galaxy is a dwarf spheroidal galaxy and a satellite of the Milky Way that lies within the constellation Sculptor. With a magnitude of 8.6 and about 25 x 20 arcminutes in size, it is located about 290,000 light-years away from the Solar System.

Interestingly it contains only 4 percent of the carbon and other heavy elements in our Milky Way, making it similar to primitive galaxies seen at the edge of the universe (according to Wikipedia) which in itself raises some interesting questions. Cosmology should be be a science rooted in observation. The questions that those observations raise and how theories and their predictions can withstand the blow torch of falsification will further our quest for knowledge.
We live in interesting times and this is an unusual object and thus well suited to further the quest for truth through science.

While perhaps not the prettiest object to image, I can tick it off my bucket list. It was quite well placed for a decent run on a rare clear night with excellent seeing before the clouds rolled back in and let me get a good nights sleep. The previous night was supposed to be the pick but became very hit and miss. I had the 12"" dob out to look at Jupiter with a friend between clouds. Luckily I wasn't imaging as a un-predicted rain shower hit when we had our backs turned so it was a mad scramble getting the gear in. No harm done phew but it goes to show. Weather forecasting is amazing these days but ... seriously ... do not to drop your guard when there is a lot of very expensive equipment exposed to the vagaries of mother nature and you don't have a retractable roof hooked up to a rain sensor. One day ...

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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	8777260
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

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PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

PGC 3589 The Sculptor Dwarf Galaxy and the Cosmology Quest

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