Saturn / Rhea / Dione / Tethys (July 12, 2020) (rdk_CA)

Contains: Solar system body or event

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Acquisition type: Lucky imaging

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Acquisition type: Lucky imaging

This image of Saturn was taken with my C8 telescope using a one-shot color camera. Seeing and transparency were both very good this evening (July 12.) To compile the final image, I acquired a total of 11 videos (90 s each) over a 20 minute period. Images were captured with a gain setting of 9 on the QHY camera and an exposure time of 100 ms per frame. Each video consisted of roughly 900 frames.

Saturn was only 31 degrees above the horizon at the time of capture, so I used an atmospheric dispersion corrector to improve the image. No Barlow lens was used here. Out of the total ~10000 frames that I captured, the best 25% were selected for inclusion in the final stack. I de-rotated the stacked images from each video using WinJUPOS.

I captured the moons of Saturn using a longer exposure (600 ms) and higher gain setting. The moons were added as a separate layer in Corel Paint Shop Pro. I used Neat Image Pro to reduce color noise, and the final image was resampled to 2x for a more presentable image scale.

The moons Rhea (mag. +10.0), Dione (+10.8), and Tethys (+10.6) are visible from left to right. Enceladus (+12.2) and Mimas (+13.2) were in the frame also, but too dim to bring out with my feeble skills! Nevertheless, this is one of my better efforts with Saturn to date.

Saturn:

visual magnitude: +0.1

altitude: 31 deg. above the horizon

apparent size: 18.5 arcsec

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):

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Equipment

Acquisition details

Description

Comments

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Saturn / Rhea / Dione / Tethys (July 12, 2020)

Equipment

Acquisition details

Description

Comments

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?

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