In the wake of the Swan (Thomas LELU)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD191702 · HD191719 · HD191740 · HD191763 · HD191781 · HD192076 · HD192119 · HD192162 · HD192180 · HD192239 · HD192302 · HD192358 · HD192401 · HD192420 · HD192441 · HD192457 · HD192480 · HD192515 · HD192580 · HD192600 · HD192681 · HD192682 · HD192697 · HD192728 · HD192985 · HD193090 · HD193536 · HD193701 · LBN 310 · LBN 313 · And 5 more.

Image of the day 07/04/2022

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In the wake of the Swan

Image of the day 07/04/2022

Powered byPixInsight

In the wake of the Swan

The study of hydrogen in the Universe is also an essential tool in astronomy.
Indeed, the first element formed according to standard cosmology after the primordial explosion, it occupies large regions of the Universe in the form of "clouds", it initiates the whole epic of star life and remains predominant until in the heart of giant planets like Jupiter.
Essential fuel of young stars – and of the Sun –, it allows the nuclear fusion reactions at the origin of their brilliance and of all the energy dispersed in planetary systems – energy collected on Earth in the processes of photosynthesis or photovoltaic generators .

This image shows a region rich in H-alpha (Hydrogen alpha) in the constellation Cygnus.
Hydrogen after having been ionized (by radiation, high temperatures, etc.) will return to its ground state energy level by emitting (about once in two) the H-alpha line which is at a wavelength of 656.3 nanometers.
Wavelength located in the red part of the visible spectrum.

Nebulae

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
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Star trails
Northern lights
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Landscape

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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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	5887472
PixInsight job	ESAXUQXYSK1E1DY4SBEEIRXE3WYKTUF0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h14m51s.94
RA (top/left)	20h08m49s.55
RA (top/right)	20h21m20s.25
RA (bottom/right)	20h21m04s.81
RA (bottom/left)	20h08m14s.32

Dec (center)	+45°41′13″.2
Dec (top/left)	+44°53′31″.4
Dec (top/right)	+45°00′11″.4
Dec (bottom/right)	+46°27′42″.6
Dec (bottom/left)	+46°20′53″.8

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Image of the day 07/04/2022

In the wake of the Swan

Image of the day 07/04/2022

In the wake of the Swan

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Image of the day 07/04/2022

In the wake of the Swan

Image of the day 07/04/2022

In the wake of the Swan

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