Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355) (Alastairmk)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: NGC 6316 · NGC 6355 · The star 36Oph

Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355), Alastairmk

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Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Dark nebula against a Milky Way starfield in the southern constellation Ophiuchus . Imaged from Queenstown, New Zealand. This was an afterthought which presented itself from our balcony. Subframes looked disappointing , so acquired only 49 x 300s subframes (L 19, R 11, G10, B 9) for 4 h integration. Result came out better than expected and improved using sharpening techniques in Pixinsight that brought out the star background and some detail in the nebulosity.

Processing:

Subframe Selector

Weighted Batch Preprocessing with Cosmetic Correction

Mure Denoise

Automatic Background Correction

Deconvolution (100 iterations) with PSF image, star mask and image mask.

RGB Combination followed by Background Neutralisation using aggregated background previews from nebulosity, and Photometric Colour Calibration.

Separately stretched Luminance and RGB images and combined then with LRGB Combination.

Adjustments and saturation boos with Curves Transformation.

TGV Denoise

Sharpening with Local Histogram Equalization and Multiscale Linear Transform.

NOVAC

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	Basic success
Started	...
Astrometry.net job	3976642
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

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Acquisition details

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Image Index:

Contribution Index (beta):

Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

Pipe Stem Nebula, Barnard 65, Barnard 66, Barnard 67 (and also containing globular clusters NGC6316 and NGC6355)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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