Fantôme de Céphée ( Jeffbax Velocicaptor )

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

Fantôme de Céphée,

Jeffbax Velocicaptor

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Fantôme de Céphée

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Fantôme de Céphée

Imaging Telescopes Or Lenses: TS-Optics 350mm/14" f/8 Ritchey-Chrétien Astrograph (truss)
Imaging Cameras: Moravian Instruments G2-4000 MK I · ZWO ASI294MC Pro
Mounts: Sky-Watcher EQ8
Software: Adobe Photoshop · Siril Team Siril · Topaz Labs DeNoise AI

Dates:: Oct. 18, 2020
Frames:: 85×300″(7h 5′) bin 1×1
145×300″(12h 5′) bin 2×2
Integration:: 19h 10′
Darks:: 21
Avg. Moon age:: 1.96 days
Avg. Moon phase:: 4.28%
Bortle Dark-Sky Scale:: 4.00

Basic astrometry details

Astrometry.net job: 3989082

RA center: 21h16m15s.1

DEC center: +68°16′40″

Pixel scale: 0.539 arcsec/pixel

Orientation: 214.894 degrees

Field radius: 0.182 degrees

Resolution: 1944x1465

File size: 859.2 KB

Locations: Observatoire du Calvados, Calvados, CALVADOS, France

Data source: Backyard

This ghost gave me a lot of work. The signal was very diffcult to extract from the background as the flats were not good. My friend Philippe Lamothe sent me the data to see what surgery was possible. I made a synthetic flat with CS and tried to adjust it the best way. I also used localised masks and Density Tools to get the signal out of the background and correct some donuts.

The image is taken with an Moravian G2-4000 ( 85 x 300s) and the ASI 294 Pro (185 x 300s).

As a result, there are still some regions with noise and a few signal issues in the low lights, but I like it anyway. We saved these 20 hours data

Original
Final
B

B

Description: Slight noise correction and fat stars spikes corrected.

Uploaded: ...

Astrophotographes (France)
ZWO ASI 294MC PRO

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

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.
Dismissals 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	Basic success
Started	...
Astrometry.net job	3989082
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Fantôme de Céphée

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Fantôme de Céphée

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