Tag Archives: IC 5070

Nebulas North America and Pelican

30дек

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico.

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 nebula was discovered by William Herschel on October 24, 1786, from Slough, England

Imaging telescopes or lenses: Tecnosky 80 Apo
Imaging cameras: Canon 1100D modded
Mounts: SkyWatcher HEQ5 PRO SynScan
Guiding telescopes or lenses: Orion 50mm guidescope
Guiding cameras: Moravian G-300
Focal reducers: Tecnosky 0.8x Reducer/Flattener 4 elements
Software: Silicon Fields Star Tools,  Incanus APT – Astro Photography Tool,  MaxIm DL 5 Pro Suite
Filters: Astronomik UHC 2″
RA center: 314.235 degrees
DEC center: 44.219 degrees
Orientation: -164.706 degrees
Field radius: 1.926 degrees

 

Author: Carlo Gualdoni

Pelican Nebula

b41c529979bb276c55db41dbc033feca.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Steven Yockey

The Pelican Nebula (also known as IC 5070 and IC 5067) is an H II region associated with the North America Nebula in the constellationCygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.

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.[1] 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.

Imaging cameras: Starlight Xpress Trius SX-694 mono
Mounts: Orion USA Sirius Eq-G
Guiding telescopes or lenses: Orion USA 102ED F7.0
Guiding cameras: Meade DSI II
Focal reducers: William Optics FF/FR F6A
Software: PixInsight, PHD, Main Sequence Software Sequence Generator Pro, ProDigital Software Astronomy Tools
Filters: Orion H Alpha 7nm, LRGB
Accessories: Orion USA Nautilus 7 x 1.25″ Filter Wheel, Orion USA Dew controller and strips
Resolution: 2700×2120
Dates: Sept. 25, 2014, Sept. 26, 2014, Sept. 28, 2014
Frames:
Orion H Alpha 7nm: 9×1200″ bin 1×1
LRGB: 25×120″ bin 1×1
LRGB: 75×180″ bin 2×2
Integration: 7.6 hours
Avg. Moon age: 1.94 days
Avg. Moon phase: 5.63%
Bortle Dark-Sky Scale: 6.00
RA center: 43.869 degrees
DEC center: 60.345 degrees
Pixel scale: 2.909 arcsec/pixel
Orientation: 166.075 degrees
Field radius: 1.387 degrees

Author: yock1960
Astrophotography of the day of  SPONLI, 17.10.2014

Pelican Nebula

211c83b33eec452b38785b1fcea3f8fc.1824x0_q100_watermark
The Pelican Nebula (also known as IC 5070 and IC 5067) is an H II region associated with the North America Nebula in theconstellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name.The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.

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.

Imaging telescopes or lenses: Takahashi TSA 102 f/8
Imaging cameras: Canon EOS 1000D / Rebel XS
Mounts: Takahashi EM-400 Temma2
Guiding telescopes or lenses: Lunatico EZG60
Guiding cameras: QHYCCD QHY5
Software: PHD guiding, PixInsight, Bahtinov Grabber
Filters: Astronomik CLS CCD clip in
Accessories: Xap Refrigeración Canon
Dates: May 27, 2012, July 9, 2012
Frames: 
Astronomik 12nm Hydrogen Alpha Filter: 18×900″ ISO1600 9C 
Astronomik CLS CCD clip in: 12×600″ ISO800 6C
Integration: 6.5 hours
Darks: ~20
Flats: ~20
Bias: ~20

Author: Alberto Pisabarro
AstroPhotography of the day by SPONLI 18 Aug 2014