M57 - high resolution (Lars Stephan)

M57 - high resolution

Acquisition type: Lucky imaging

M57 - high resolution

Acquisition type: Lucky imaging

August 2017: AOM 160/1600 mit ASI290mm:
Luminanz = 362 x 2 sec. + 392 x 2,5 sec + 622 x 1,5 sec. ( f = 1.600 mm)
     + 749 x 1,5 sec (f = 1.200 mm)
   = 3.760 sec
R / G / B = 746 x 2,8 sec / 432 x 2,0 sec / 555 x 2,5 sec. ( f = 1.200 mm, bin 2x2)
   =. 4.340 sec

September 2022: AOM 160/1600 mit QHY600L
R = 92 x 30 sec ( f = 1.200)
   = 2.760 sec
(total 3 h)

Anders als bei der früheren Bearbeitung der Daten konnte ich nun alle Luminanzaufnahmen in einem Durchlauf stacken (APP).
Zur besseren Erfassung der schwachen Ausläufer waren die neuen Aufnahmen im Rotkanal gedacht.
Fast genau nördlich des Nebels befindet sich ein heller Doppelstern. Dicht über dem linken der beiden Sterne liegt ein weiterer schwacher
Doppelstern, dessen Komponenten 0,5 Bogensekunden getrennt sind. Daran lässt sich die Auflösung des Bildes erkennen.

Unlike the earlier processing of the data, I was now able to stack all the luminance recordings in one pass (APP).
The new recordings in the red channel were intended for better recording of the faint foothills.
Nearly due north of the nebula is a bright double star. Another faint one lies just above the left of the two stars
Binary star whose components are separated by 0.5 arc seconds. This shows the resolution of the image.

Original
Final
B

B

Description: Farben besser justiert / Colors better adjusted

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 failed
Started	...
Astrometry.net job	8231659
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M57 - high resolution

M57 - high resolution

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Image Index:

Contribution Index (beta):

M57 - high resolution

M57 - high resolution

Equipment

Acquisition details

Description

Comments

Revisions

B

Histogram

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