Planetary Nebula Messier 76 in Perseus - HO (Daniel.P)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: Little Dumbbell · M 76 · NGC 650 · NGC 651 · PK130-10.1

Powered byPixInsight

Planetary Nebula Messier 76 in Perseus - HO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

Planetary Nebula Messier 76 in Perseus - HO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

I am back at my home near Paris and planned to continue using NB imaging under light polluted sky (SQM 19.5 at best) and with the full moon coming : SQM 18.4 at the moment !

I also had to use my good old NEQ6 again instead of my new CEM120EC2.

This is a quick comparison between the 2 mounts :

- The "minus" : the RA drive has a lot PE and the DEC drive some backlash : the typical guiding error was around 1 arcsec RMS instead typically 0.3 arcsec RMS with the CEM120. Sometimes the errors jump to up to 5 arcsec before being corrected by PHD2.

- The "plus" : I tried to apply my automated target centering and meridian flip with this mount (which I never succeed in the past), it did work quite well !!! The only change I observed is that up to 5 iterations are required before the target can be centered within 25 pixels (2 iterations are usually sufficient to center the CEM120 to less than 10 pixels).

The processing was done in PI as follow :

For each H, O channels :

- Images Calibration (Dark and Flat)

- Cosmetic Correction

- Image Registration

- Image Integration

- Mure Denoise

Then :

- Create HO image using pixelmath H in red channel, O in blue channel, H+O in green

- Color balance on nebula

- Deconvolution masked with 2.2 pixel psf

- Delinearisation using MaskedStretch

- Mix image with 50% of HDR compressed image

- SCNR (G min 0.70)

- Color Balance Stars Only using a star mask

- Color Saturation masked (and desaturate bkg)

- Background extraction

- TGV denoise (image as local support)

Final image adjustments performed in Iphoto on Imac :

- levels adjustments

- deflip

Final
Original
B

B

Description: zoom

Uploaded: ...

ZWO ASI1600MM/QHY163M

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	2983301
PixInsight job	1GXC0VPV1HBTMK7H3EVJFYLQC75TNA1U
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h42m18s.162
RA (top/left)	01h46m06s.264
RA (top/right)	01h38m28s.818
RA (bottom/right)	01h38m34s.525
RA (bottom/left)	01h46m03s.690

Dec (center)	+51°34′38″.79
Dec (top/left)	+52°01′09″.53
Dec (top/right)	+52°00′54″.28
Dec (bottom/right)	+51°07′40″.93
Dec (bottom/left)	+51°07′56″.30

Image Index:

Contribution Index (beta):

Planetary Nebula Messier 76 in Perseus - HO

Planetary Nebula Messier 76 in Perseus - HO

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

Planetary Nebula Messier 76 in Perseus - HO

Planetary Nebula Messier 76 in Perseus - HO

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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?

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