lbn 438 (Peter Fritzenwallner)

Celestial hemisphere: Northern · Constellation: Lacerta (Lac)

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lbn 438

Link: https://www.hubblebubbleastrofotos.com/

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lbn 438

Link: https://www.hubblebubbleastrofotos.com/

Lbn 438 Dunkelnebel im Sternbild Lacerta , 4., 6. und 7. Sept. 2021, Hohe Wand, Wildgehege. Eigentlich mein erster Dunkelnebel, sehr schwieriges Projekt, viele Gradienten in Einzelbildern, Flatfields funktionierten nicht richtig, besonders Blaukanal mit fleckigen Artefakten aufgrund leichter Bildfeldwanderung durch ungenügender Polhöhenfixierung bei Losmandy G11 Montierung. (Walking Pattern Noise).Halpha Aufnahmen müssen noch gemacht werden, geplant noch für Herbst 2021.ca. 11 h Gesamtbelichtungszeit, Atik 383L+ (Kaf 8300, 5.4µ), Optolong 2" LRGB Takahashi Epsilon 160ed, (532mm Brennweite, F3.3) Astropixelprozessor, Pixinsight, Photoshop.

Original
B
Final
C

B

Description: less denoised background - nebulae enhanced by using starless image....

Uploaded: ...

C

Description: In the LRGB Image was almost no Red by the Halpha Emission nebulas visible, in other LRGB images by other astrofotographers it is visible, don't know why in my case not.

The LRGB I shot at 1000 m above sea level at Hohe Wand/Lower Austria.
The Halpha from my garden observatory Vienna.

Lum 123 x 180"
Red 39 x 180"
Green 34x 180"
Blue 28x 180"
Halpha 54 x 900"

Total: 834 min 13,9 h

Uploaded: ...

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	Distinct awarded users	Total awarded images
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Amateur hosting facility
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Professional, scientific grade data
Mix of multiple sources
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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	5144485
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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lbn 438

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