The Hercules Cluster - HST Very Narrowband Data (Eric Coles (coles44))

The Hercules Cluster - HST Very Narrowband Data

This image was generated from data downloaded from the MAST database of professional telescopes, in this case vary narrowband data from the Hubble space Telescope. I had just completed an M13 image and thought to see what other related images could be generated. In this case I downloaded the HST from the 438, 336 and 275 NM (max) filters, all beyond the visible spectrum. The color mapping was done according to the standard practice of assigning the longest wavelength filter to Red, the next to Green and the shortest to Blue. So 438,336,275=RGB. And this is the result. It's an interesting result.

For those interested, here is the link to the MAST database which contains all the data from the public telescopes, including those from the Hubble Space Telescope (https://mast.sts, ci.edu/portal/Mashup/Clients/Mast/Portal.html). All you have to do is understand how best to work with these data once they are downloaded. It's lots of fun. and can be challenging.

Enjoy our access.

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
Artificial satellite

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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