Conjunction of Comet C/2017 K2 with M10 in RGB (Robert H. Kutner)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: Solar system body or event

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Conjunction of Comet C/2017 K2 with M10 in RGB

Powered byPixInsight

Conjunction of Comet C/2017 K2 with M10 in RGB

Dithered during acquisition which started at 11:30 PM EST and ended with clouds after midnight. Blink / Subframe Select, Calibrated (60 Dark, 50 Flat, 100 Bias), Star Aligned all images with PixInsight, about 90% were useable. Used Normalized Scale Grad to prep for Comet Alignment.

For a Starfield - 30s R, G, & B channels: Dynamic Crop, TGV, MMT, STF Stretch, StarNet++, and channel combined stars using LRGB comb. Background Neut, PCC, CC, and subtracted residual comet tail from this RGB Starfield with masks using MLT and HistogramTransform then Curves Modified.

For a Comet - 30s R, G, & B channels: Comet Align, Image_Integration, Dynamic Crop, DBE, TGVd, MLT, channel combined using ChannelComb and STF stretched.

For combined Starfield and Comet: Comet Image was masked with an inverted GAME mask protecting comet and the RGB Starfield replaced the background using Pixel Math.

The final combined image was Curves Modified w/ & w/o masks. Moved to Photoshop for additional color noise reduction around M10. Returned to PI for Resample and Annotation.

Cloudy Nights

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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	Advanced success
Started	...
Astrometry.net job	6003163
PixInsight job	5DW1L0HZZLUR0EP0E4UKFAZFILFQEP87
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h55m55s.622
RA (top/left)	16h57m37s.590
RA (top/right)	16h52m51s.792
RA (bottom/right)	16h54m13s.991
RA (bottom/left)	16h58m59s.999

Dec (center)	-04°05′16″.44
Dec (top/left)	-03°26′49″.76
Dec (top/right)	-04°01′42″.80
Dec (bottom/right)	-04°43′40″.36
Dec (bottom/left)	-04°08′45″.35

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Conjunction of Comet C/2017 K2 with M10 in RGB

Conjunction of Comet C/2017 K2 with M10 in RGB

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Image Index:

Contribution Index (beta):

Conjunction of Comet C/2017 K2 with M10 in RGB

Conjunction of Comet C/2017 K2 with M10 in RGB

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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