M 105 - LRGB with limited signal (Rodolphe Goldsztejn)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: M 105 · NGC 3379 · NGC 3384 · NGC 3389

Powered byPixInsight

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

Powered byPixInsight

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

This image results from two consecutive nights.

Anecdotally, many obstacles in the way:

* changed the scope (from AP130 to the C8), with the same imaging CCD/AOG to reduce the FOV and frame them better - all fine

* then PHD2 was not able to keep up with a guiding star - however could get 10-12 frames over a 6 hours perid

* the next night was less favorable - PHD2 was lost - started suspecting PHD2, then SGP - tried the same with Voyager (same issue), NINA to no avail

* then checked the guiding camera (QHY5L2M) settings, which I didn't change from previous setup (why should I fix it, if it works???)

* repeated all the above, unsuccessfully

* went back to the QHY guiding camera settings and reduced the offset by a very small amount (5 or 10 units maybe) ---> miracle! PHD2 immediately found the guiding star.

Although I lost 3+ hours to understand and fix the problem, the rest of the night went very well.

Pfewww!

Original
B
Final
C

B

Description: Reprocessing of an old image...

Uploaded: ...

C

Title: General improvement, better details, Ha merged with R

Uploaded: ...

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	7323810
PixInsight job	F19T55VABVZ7SRPZPT7BRZ1TACORTJ9W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h48m05s.936
RA (top/left)	10h49m06s.783
RA (top/right)	10h49m07s.532
RA (bottom/right)	10h47m04s.879
RA (bottom/left)	10h47m04s.411

Dec (center)	+12°32′43″.18
Dec (top/left)	+12°12′36″.13
Dec (top/right)	+12°52′42″.62
Dec (bottom/right)	+12°52′49″.77
Dec (bottom/left)	+12°12′42″.34

Image Index:

Contribution Index (beta):

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

M 105 - LRGB with limited signal

Revision title: General improvement, better details, Ha merged with R

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

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?

Delete this revision?

Delete this revision?

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