Phases of Venus (Steve Ludwig)

Contains: Solar system body or event

Phases of Venus

Acquisition type: Lucky imaging

Phases of Venus

Acquisition type: Lucky imaging

It was a lot of fun to work on this series of images. Especially this month (May) was quite busy. Due to bad weather forecast and the altitude of Venus now becoming too low, I will not be able to image further pictures this week. So the series is now done. All tracking was done manually, which was quite painful with such a small camera sensor paired with 3810 mm focal length.

Equipment

- Bresser Messier 10" dobson (f/5) + standard rockerbox

- Explore Scientific 3x focal extender -> 3810 mm focal length

- ZWO ASI 290MC + UV-IR cut filter

- ZWO Atmospheric Dispersion Corrector (ADC) Mark II

- Telrad Finder

Acquisition

- between 8000 and 15000 frames per image recorded with FireCapture

- shutter speed 1 ms

- gain in the range of 30-150 (whatever necessary for about 33% histogram coverage)

Processed in AutoStakkert! 3

- best 250 frames

- normalize Stack (100%)

- RGB align

- 3x drizzle

Processed in Pixinsight

- background neutralization

- color calibration

- rotation

- crop

- multiscale linear transform (latest revision)

- resample 50% (latest revision)

- saved as .jpg

Original
Final
B

B

Description: In the new revision, I increased the sharpness a bit using the "multiscale linear transform" process in Pixinsight.

Uploaded: ...

/r/astrophotography

Solar System

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

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Phases of Venus

Phases of Venus

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Image Index:

Contribution Index (beta):

Phases of Venus

Phases of Venus

Equipment

Acquisition details

Description

Comments

Revisions

B

Histogram

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