• Alberto Pisabarro

Nebulae in the Cygnus - a gaseous beginning - Part 1.

I welcome you, in this section I want to publish a selection of the images that I have been able to capture since 2011 using different equipment, but this time grouped by constellation. All the images are linked to their corresponding individual entry, in case someone needs to know more about the acquisition details etc ...

For this first approach I am going to start with a nebula that is still high in the sky at sunset, and that is one of the main constellations of summer.

A constellation filled with gas and dust

In this wide-field image you can see the vast majority of deep sky objects that populate the constellation of the Swan, this constellation is visible during the summer in the northern hemisphere, the blue star on the left is Deneb, the star that coincides with the Swan's tail and one of the members of what is known as the summer triangle. We can also see Sadr the second brightest star in the photo that matches what would be the heart of the Swan.

IC 1318

IC 1318 also known as the butterfly nebula is an emission nebula formed by gas and dust, the brightest star is Sadr which is the second brightest in the constellation after Deneb, on these lines you can see it in two different versions, the first is a four-panel mosaic obtained during the summer of 2015 from San Justo de la Vega, the second version was obtained from the Deep Sky West observatory in 2016.

NGC 7000 and IC 5070 North American and Pelican Nebulae

In this image of Great Field we can see a nebular complex by two nebulae of the most famous nebulae in the sky, guarded by the stars Deneb.

IC 5070- Pelican Nebula

La nebulosa del Pelicano, es una nebulosa de emisión que ha sido muy estudiada, ya que alberga regiones de formación estelar y nubes de gras en desarrollo. Esta nebulosa alberga estrellas jóvenes que son las responsables de calentar lentamente el frío gas produciendo un frente de ionización que avanza hacia el exterior.

NGC 7000- North America Nebula

This is the North America nebula, another emission nebula, but unlike the pelican nebula, it does have a shape that clearly associates it with the northern part of the American continent, this is largely due to the area formed by dust that makes up what would be the Gulf of Mexico, a region that is very photographed in narrow band.

The Veils Nebular Complex

This image captured from Deep Sky West shows us the complete Veil nebular complex, this nebular complex is located on one of the Swan's wings, it is a cloud of hot and ionized gas. It is a very extensive nebula and is divided into three different areas: The Eastern Veil: (NGC 6992) which is near the star 52 Cygni. The Western Veil (NGC 6960), and the Pickering Triangle. This nebular complex is a remnant of a supernova.

The supernova that originated this wonder is estimated to have exploded about 5,000 to 8,000 years ago, and the debris has since expanded to cover an area roughly 6 times the diameter of the full moon.

NGC 6960 and The Pickering Triangle

At the top the NGC 6960 also known as "Witch's broom nebula", just below it we can see the so-called Pickering's Triangle.

NGC 6992 Eastern Veil Nebula

This is NGC 6992, this image has the peculiarity of having been captured using narrow band filters resulting in what is known as a false color image, since the colors shown in the image do not bear similarity to those that we can see with visible light, this is due to the fact that each one of the filters used lets only light pass through the different gases that make it up.

And so far this first part, I hope you liked it, if you have not done it yet, you can click on the images and access the details of their acquisition.

Until the next cut.

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