kevan.noble
Cygnus Region
Taken 6 to 10 August 2022 on consecutive nights, a wide field of the Cygnus region containing The Tulip, Crescent, Soap Bubble, WR 134 and Sh2-104 Nebulae. This image comprises 18hrs of capture of narrowband Sii, Ha, and Oiii plus LRGB for the stars. So many elements in this image to bring out in processing, starting from scratch 5 times now, but this is the finished version for now anyway. Whilst there are many individual nebulae in this image, a few of the more identifiable due to structure are listed below.
The Tulip Nebula – Sh2-101 The emission from the Tulip Nebula is powered by ultraviolet radiation of the hot young star HD 227018. The O6.5III class star belongs to the Cygnus OB3 association and has a visual magnitude of 9.02. In images, it can be seen near the nebula’s centre.
The Soap Bubble Nebula, or PN G75 is a planetary nebula in the constellation Cygnus, near the Crescent Nebula (NGC 6888). It was discovered by amateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008. Can you see it? It is underneath the Crescent Nebula, a little to the left in this image.
WR 134 is a variable Wolf-Rayet star located around 6,000 light years away from Earth in the constellation of Cygnus, surrounded by a faint bubble nebula blown by the intense radiation and fast wind from the star. It is five times the radius of the sun, but due to a temperature over 63,000 K it is 400,000 times as luminous as the Sun.
NGC 6888, the Crescent Nebula, is about 25 light-years across blown by winds from its central, bright, massive star. The oxygen atoms produce the blue hue that seems to enshroud the detailed folds and filaments. Visible within the nebula, NGC 6888's central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun's mass every 10,000 years.
Sh2-104 is a very faint emission nebula in the constellation Cygnus. This is located due east of the popular Crescent Nebula. Sh2-104 is viewed by professional astronomers as a good illustration of the "collect and collapse" model of star formation triggered by the rapid expansion of a Helium II region.
Sky Quality 19.67 Magnitude Class 5 Bortle.
Astromiks 50mm SHO 6nm Filters and LRGB Filters
30 x Darks, Flats and Dark Flats
ZWO ASI6200MM Pro
ZWO 7x2" EFW
ZWO EAF
Williams Optics GT81 IV
WO 6A III Field Flattener 0.8
HEQ5 Pro Rowan
ASIAIR Pro
Astro Pixel Processor
Pixinsight
Photoshop 2022
Cygnus Region
Taken 6 to 10 August 2022 on consecutive nights, a wide field of the Cygnus region containing The Tulip, Crescent, Soap Bubble, WR 134 and Sh2-104 Nebulae. This image comprises 18hrs of capture of narrowband Sii, Ha, and Oiii plus LRGB for the stars. So many elements in this image to bring out in processing, starting from scratch 5 times now, but this is the finished version for now anyway. Whilst there are many individual nebulae in this image, a few of the more identifiable due to structure are listed below.
The Tulip Nebula – Sh2-101 The emission from the Tulip Nebula is powered by ultraviolet radiation of the hot young star HD 227018. The O6.5III class star belongs to the Cygnus OB3 association and has a visual magnitude of 9.02. In images, it can be seen near the nebula’s centre.
The Soap Bubble Nebula, or PN G75 is a planetary nebula in the constellation Cygnus, near the Crescent Nebula (NGC 6888). It was discovered by amateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008. Can you see it? It is underneath the Crescent Nebula, a little to the left in this image.
WR 134 is a variable Wolf-Rayet star located around 6,000 light years away from Earth in the constellation of Cygnus, surrounded by a faint bubble nebula blown by the intense radiation and fast wind from the star. It is five times the radius of the sun, but due to a temperature over 63,000 K it is 400,000 times as luminous as the Sun.
NGC 6888, the Crescent Nebula, is about 25 light-years across blown by winds from its central, bright, massive star. The oxygen atoms produce the blue hue that seems to enshroud the detailed folds and filaments. Visible within the nebula, NGC 6888's central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun's mass every 10,000 years.
Sh2-104 is a very faint emission nebula in the constellation Cygnus. This is located due east of the popular Crescent Nebula. Sh2-104 is viewed by professional astronomers as a good illustration of the "collect and collapse" model of star formation triggered by the rapid expansion of a Helium II region.
Sky Quality 19.67 Magnitude Class 5 Bortle.
Astromiks 50mm SHO 6nm Filters and LRGB Filters
30 x Darks, Flats and Dark Flats
ZWO ASI6200MM Pro
ZWO 7x2" EFW
ZWO EAF
Williams Optics GT81 IV
WO 6A III Field Flattener 0.8
HEQ5 Pro Rowan
ASIAIR Pro
Astro Pixel Processor
Pixinsight
Photoshop 2022