M 92 Globular Cluster (star-watcher.ch)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: IC 4645 · IC 4648 · M 92 · NGC 6323 · NGC 6327 · NGC 6329 · NGC 6332 · NGC 6336 · NGC 6341 · NGC 6344

Powered byPixInsight

M 92 Globular Cluster

Link: https://www.star-watcher.ch/blog/

Powered byPixInsight

M 92 Globular Cluster

Link: https://www.star-watcher.ch/blog/

So, this is a bad example of an astro image :-(
My DSLR almost slipped out of the focuser during handling on it. Fortunately I holded my 70D in both hands as it began to move... a very bad feeling ;-)

Maybe I lost the collimation during that action or it was tilted in the focuser afterwards... but there is strong coma in the corners...

And maybe I need to loosen the primary mirror holder pads a bit more, since the stars have an strange shape in the right upper corner.

And I guess I moved the primary mirror upwards in secondary mirror direction while collimating the scope with all 3 collimating knobs...
Does anybody knows what happens if the primary mirror is a bit nearer to the secondary mirror (I'm talking about 2-3mm)???

Globular Star Clusters
DSLR/Mirrorless Imagers from the World
Camera Lens Astrophotography
DSLR and mirrorless astrophotography
Fast Newtonians
iOptron CEM26/GEM28
Sky-Watcher Explorer 130PDS
Light Polluted skies
Imagers of Switzerland
Messier Objects

Star Cluster

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	Advanced success
Started	...
Astrometry.net job	5713595
PixInsight job	NLRWE917M5G7535Q1UATB86UTQ6SHMY8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h16m53s.58
RA (top/left)	17h22m42s.46
RA (top/right)	17h15m23s.70
RA (bottom/right)	17h11m03s.55
RA (bottom/left)	17h18m21s.20

Dec (center)	+43°10′33″.6
Dec (top/left)	+43°01′10″.4
Dec (top/right)	+44°12′44″.2
Dec (bottom/right)	+43°18′51″.2
Dec (bottom/left)	+42°08′22″.6

Image Index:

Contribution Index (beta):

M 92 Globular Cluster

M 92 Globular Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M 92 Globular Cluster

M 92 Globular Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information