Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 5070  ·  NGC 6997  ·  NGC 7000  ·  North America nebula  ·  Pelican nebula  ·  The star 56Cyg  ·  The star 57Cyg  ·  The star ξCyg
NGC7000 The North American and IC 5070 The Pelican Nebulae, Lluis Romero Ventura
NGC7000 The North American and IC 5070 The Pelican Nebulae
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NGC7000 The North American and IC 5070 The Pelican Nebulae

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Description

Located in the summer constellation of Cygnus, the North American Nebula (NGC 7000 at the middle left of this image) and the Pelican Nebula (IC 5070 on the right) form a complex of hydrogen emission nebulae located just a few degrees east of the first magnitude star Deneb.

The North America Nebula and the nearby Pelican Nebula, (IC 5070) are in fact parts of the same interstellar cloud of ionized hydrogen (H II region). Between the Earth and the nebula complex lies a band of interstellar dust that absorbs the light of stars and nebulae behind it, and thereby determines the shape as we see it. The distance of the nebula complex is not precisely known, nor is the star responsible for ionizing the hydrogen so that it emits light. If the star inducing the ionization is Deneb, as some sources say, the nebula complex would be about 1800 light years distance, and its absolute size (6° apparent diameter on the sky) would be 100 light years.

The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.

image detail

Placer: Àger-Lleida

Date: 27-Abril-2014

Start time: 2:30 am

Mount: Losmandy G11 & Gemini II

Telescope: Takahashi Epsilon 180 ED f/2.8

Camera: Canon 5D Mark II

Telescope Guia: Minitelescopio Orion 50 df:165 mm.

CCD guide: QHY5M

Exposures: 23 x 300 segundos a ISO 800.

Software: APT 1.5 & Pixinsight.

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NGC7000 The North American and IC 5070 The Pelican Nebulae, Lluis Romero Ventura