M13 - A new image of a favorite (Phil Hoppes)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: HD150679 · HD150998 · Hercules Globular Cluster · IC 4617 · M 13 · NGC 6205 · NGC 6207

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M13 - A new image of a favorite

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M13 - A new image of a favorite

I imaged M13 about a year ago. Looking at that previous image it was not bad but the core was blown out more than required. I cut this shot back from over 2 hours on the previous one to only 30 minutes. I actually tried to do an HDR image. I shot this with 6x300", 23x150" and 33x75". When I assembled things in PI the 6x300" shot looked almost identical if not better than the HDR composition so I simply went with this. I will look at this again probably next year. What I might do then is a comparison of more shorter exposures vs less longer exposures. I'm finding that my attempts at HDR astronomical images are not like working with outside landscape HDR images. Not a surprise really as the S/N issues are so different.

I always enjoy clusters. They don't have the wow factor of galaxies and nebulas but they have a beauty all their own.

Messier Objects
Vixen Astrophotography
Arizona Astrophotographers
Imaged with N.I.N.A.
Narrowband imaging

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
Top picks
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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
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	Advanced success
Started	...
Astrometry.net job	9909606
PixInsight job	FCYAT6JZOH63O1YHC7U06EDZM26Q8NWP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m46s.30
RA (top/left)	16h40m52s.87
RA (top/right)	16h44m48s.38
RA (bottom/right)	16h42m40s.50
RA (bottom/left)	16h38m43s.49

Dec (center)	+36°27′31″.4
Dec (top/left)	+35°52′21″.7
Dec (top/right)	+36°25′37″.7
Dec (bottom/right)	+37°02′34″.5
Dec (bottom/left)	+36°29′02″.7

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M13 - A new image of a favorite

M13 - A new image of a favorite

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Image Index:

Contribution Index (beta):

M13 - A new image of a favorite

M13 - A new image of a favorite

Equipment

Acquisition details

Description

Comments

Sky plot

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In these public groups

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