The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544) (Trần Hạ)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: IC 1274 · IC 4685 · Lagoon Nebula · M 20 · M 21 · M 8 · NGC 6514 · NGC 6523 · NGC 6526 · NGC 6530 · NGC 6531 · NGC 6544 · NGC 6546 · NGC 6559 · The star 11Sgr · The star 4Sgr · The star 7Sgr · The star 9Sgr · Trifid Nebula

Image of the day 06/26/2020

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The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

Image of the day 06/26/2020

Powered byPixInsight

The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

Processing this image made me sleepless for many nights, and you see, I'm able to go to sleep tonight! My computer will also be resting

I captured all this data from my friend's observatory in Sydney, while I controlled it from Hanoi. I took 4 panels, and used PixInsight's Image Solver + Mosaic By Coordinates script to fit them together. Here are the technical info of a single panel:

- Halpha: 15 frames x 900"

- Lum: 6 frames x 600"

- Red: 3 frames x 600"

- Green: 5 frames x 600"

- Blue: 5 frames x 600"

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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Distribution of subject types

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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	3616548
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Image of the day 06/26/2020

The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

Image of the day 06/26/2020

The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

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Image Index:

Contribution Index (beta):

Image of the day 06/26/2020

The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

Image of the day 06/26/2020

The Sagittarius Triplet in HaLRGB, 4 panel mosaic (Lagoon Nebula, Trifid Nebula, Messier 21, NGC 6559 and NGC 6544)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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