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The Veil Nebula under The camera -- The Veil Nebula
2020 / 09 / 28
The Veil Nebula under The camera -- The Veil Nebula



 

Shot by Terry Hancock using QHY600M

 

Image shooting details

Target: The Veil Nebula

Imaging camera: QHY600M

Imaging Telescope: Takahashi FSQ-130

Equator: Paramount ME

Filter: OPTOLONG LRGB Ha SII OIII

Exposure: Ha 210 minutes 21 x 600 seconds

OIII 140 minutes 14 x 600 seconds

SII 180 minutes 18 x 600 seconds

Shooting software: Maxim DL6

Preprocessing software: PixInsight 1.8

Post processing software: Adobe Photoshop CC

Resolution: 9391x6174

Location: Grand Mesa Observatory, Colorado

Shooting date: July 30, and August 6, 8, 11 and 13, 2020

 

The Veil Nebula, also known as the Cygnus Loop, is a cloud of hot and ionized gas and dust in the constellation Cygnus. It is a large but relatively faint supernova remnant.FUSE's measurements confirm that the nebula is about 1,470 light-years away.The Veil Nebula is very extensive and consists of three main visible parts: the West Veil Nebula, the East Veil Nebula and Pickering's Triangle.It was discovered by William Herschel on September 5, 1784.

The nebula is difficult to observe because of its multiple levels of relative brightness and its wide and faint range, but observers with a telescope equipped with an OIII filter can clearly see the nebula because almost all of its light comes from radiation of this wavelength.


 


 

Terry Hancock used the QHY600, a QHYCCD full-frame, science-based CMOS camera with 60 megapixels and SONY IMX455 refrigerated CMOS sensor with a rear view of 3.76 microns.

The CMOS chip used in QHY600 has a native 16-bit ADC. Compared with 12-bit and 14-bit ADCs, the 16-bit ADC can obtain a high sampling resolution and the system gain will be less than 1E/ADU.Compared with CMOS with dual channel splicing to increase the number of bits, native CMOS has better linearity over the whole range.





 

(QHY600 linearity Test curve)

 

The QHY600 is an IMX455 back-illuminated CMOS camera, which has the advantage of increasing its full well charge capacity.This is particularly advantageous for sensors with smaller pixels.Even if the single pixel size of the original data can reach 3.76um, QHY600 has a full well charge of 51KE-and a unique extended full well mode, which is not easy to overexposure when shooting, better star detail processing, and the shot picture appears more pure.

The QHY600 also has ultra-low readout noise and dark current, as well as ultra-high quantum efficiency (0.002e/ P /s@-20C).At high gain and 2FPS high readout speed there is only one read noise electron.This is a perfect performance when the conditions are photon-constrained, i.e. short exposures, narrow-band imaging, etc., to capture clearly the clouds and embedded star points floating around the Veil Nebula.

In addition, the QHY600 has a variety of versions, including can meet different shooting needs, a variety of choices, there is always one for you!

 

This work is a photographer Terry Hancock, he was born in England, are now in the United States, loves photography and astronomy, his works have on NASA's daily astronomical figure (APOD), "astronomical", "looking at the night sky, the sky and telescope, the modern astronomy, national geographic magazine, the daily mail, yahoo! 's network, space network and online publications.He is currently in charge of the construction of the Grand Mesa Observatory in Colorado.He also worked in astronomy education for the State of Colorado, speaking at schools, clubs, libraries and other organizations.It also runs an online astrophotography tutorial service that teaches equipment use and image processing skills to students around the world.


 
 
The Shadow of the North American Nebula



 

Shot by Terry Hancock using QHY367C Pro

 

Image shooting details:

Target: the NGC7000 north American nebula

Imaging camera: QHY367C Pro

Imaging Telescope: Takahashi FSQ-130

Equator: Paramount ME

Chroma Technology LRGB Filters (5nm)

Filter wheel: QHYCFW3 Large

Shooting software: Maxim DL6

Exposure: RGB 290 minutes 29 x 600 seconds

Ha 495 minutes 33 x 900 seconds

OIII 210 minutes 14 x 900 seconds

SII 255 minutes 17 x 900 seconds

Preprocessing software: PixInsight

Post processing software: Adobe Photoshopc CC and Starnet

Resolution: 7362x4896

Location: Grand Mesa Observatory, Colorado

Shooting dates: May 21 and 29, and June 10, 12 and 15, 2020

 

The North American Nebula (also known as NGC 7000) is an emission nebula in the constellation Cygnus, near Tianjin iv.This emission nebula resembles the north American continent, especially the southeastern coast, hence its name.It was discovered in the 18th century by the famous astronomer William Herkell.

The North American nebula is very large, covering an area in the sky the size of more than 10 full moons, but its surface is too faint to be seen with the naked eye.Binoculars and wide-field (ca. 3°) telescopes show fog-like patches of light in the very dark night sky.However, in the dark night sky environment, using UHC filter to filter out the unwanted wavelength, can be seen with the naked eye.His distinctive shape and red color (H alpha radiation from hydrogen) appear only in photographic images.





 

Terry Hancock photographed the North American nebulae using QHY367C Pro.QHY367C Pro is a new upgraded version of QHY367C. It adopts a 36 megapixel full-frame CMOS image sensor with ultra-high performance refrigeration CMOS camera. It is one of the top models of COLDMOS series with medium size QHY and the chip is the same as the CMOS chip IMX094 of D800/810A.

QHY367C Pro has ultra-low readout noise, 3.2 electrons at minimum gain, and 2.4 electrons at unit gain.

On the data output side, although many cameras claim to output RAW image files, they still perform some internal processing on the image, resulting in magnitude swallowing.The QHY367C Pro outputs RAW data for maximum compatibility with astronomical image processing programs and other scientific imaging applications.

The halo around bright stars is a problem in deep space astronomical photography.However, the optical window of QHY367C Pro and the high-quality anti-reflection film on the surface of the sensor can greatly reduce this effect. As shown in the figure, the north American nebulae photographed by QHY367C Pro have a clear picture quality with very beautiful contrast and exquisite images.

The QHY367C Pro USES THE CMOS glow control technology of QHYCCD to achieve a true zero-glow effect on this chip.You can get a perfectly consistent image without worrying about the uniformity of the glow deduction and feel free to shoot long exposures.

Like other cameras, the QHY367C Pro features zero-amplifier luminescence, anti-condensation technology, 128MB DDR buffer memory and a variety of transfer rings for use on different optical systems.

In addition, compared with QHY367C, QHY367C Pro has a better structure, better stability, more efficient refrigeration, shorter intercept, better hardware stability and performance, which is undoubtedly one of the best choices for astronomy lovers of color deep space photography!

This work is a photographer Terry Hancock, he was born in England, are now in the United States, loves photography and astronomy, his works have on NASA's daily astronomical figure (APOD), "astronomical", "looking at the night sky, the sky and telescope, the modern astronomy, national geographic magazine, the daily mail, yahoo! 's network, space network and online publications.He is currently in charge of the construction of the Grand Mesa Observatory in Colorado.He also worked in astronomy education for the State of Colorado, speaking at schools, clubs, libraries and other organizations.It also runs an online astrophotography tutorial service that teaches equipment use and image processing skills to students around the world.

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