NGC6995

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: IC 1340 · NGC 6992 · NGC 6995 · Network nebula · Veil nebula

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NGC6995

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NGC6995

Test d'une boîte refrigerante pour APN de fabrication personnel sur cette photo, modules peltier (sans modification de l'APN), moins de bruit sur les brutes et pas de trame constatée (aux mêmes Iso et temps de pose, à temperature plus élevée, de la trame apparaissait). La boîte refrigeante n'a fonctionné qu'à 50% , un cable s'était débranché ;-) )

Le miroir secondaire totalement dans les choux (sans doute un oubli de serrage ...) a fait l'objet d'une collimation très grossière et imparfaite dans la nuit ... à refaire de jour ( plus facile ...) sgrongneuxgneux ;-))

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Personal selfmade cooling box for APN tested on this picture (without modifyng APN) , Peltier modules (less noise and easier to process). A cable "off" during the night but the cooler had worked a little bit 50%)

Secondary miror not in central axis of primary, collimation made during the night ... but must be reviewed once again , during the day , it's better ( and easier ...)

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Original
B
C
Final
D

B

Description: * Avec une réduction d'étoiles, pour faire ressortir plus la nébuleuse
* Stars reduction

Uploaded: ...

C

Description: A first attempt and test with PixInsight on same stack (only post stack processing here ) :

- Stars reduced
- "small" HDR (could be avoid I think)
- Star mask / noise (MLT + ACDNR ) / et few other different things ... click click every where . A "funny click game" ;-)

This result is not perfect but softer than previous publication

Uploaded: ...

D

Description: histogramme alignment

Uploaded: ...

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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	Basic success
Started	...
Astrometry.net job	3141170
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC6995

NGC6995

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Image Index:

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NGC6995

NGC6995

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C

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Sky plot

Histogram

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