The 8.6% illuminated crescent Venus (Niall MacNeill)

Contains: Solar system body or event

The 8.6% illuminated crescent Venus

Acquisition type: Lucky imaging

Wow as Venus swings in in front of us, it is changing its apparent diameter rapidly, now 51 arc seconds…that is 10 arc seconds bigger than Jupiter. In fact in terms of apparent diameter, Venus attains the largest size of all the planets, however it turns its back to us!!! We imagine the black bulk of the planet by the thinning crescent.

This is the 8.6% illuminated crescent in colour. Beautiful is it not?

Low to the horizon the light from Venus is split into its rainbow colours by diffraction through the atmosphere, like by a prism. Perhaps even more beautiful as seen in Version B ? I used an Atmospheric Dispersion Corrector (ADC) to correct this dispersion and put the different colours back to the correct spot on the camera's sensor or my eye. The Version C animation shows the no ADC version, then no ADC but software (RegiStax) colour aligned and then the ADC version.

Final
Original
B
C

B

Description: The rainbow crescent Venus, no ADC, no RGB alignment

Uploaded: ...

C

Description: GIF animation,
1) the rainbow Venus, no ADC no RGB alignment
2) No ADC but RGB aligned by Autostakkert
3) With ADC

Uploaded: ...

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

Image Index:

Contribution Index (beta):

The 8.6% illuminated crescent Venus

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

The 8.6% illuminated crescent Venus

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

Delete this revision?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information