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198 results for “jdlbt”
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The Helix Nebula (NGC 7293) is a planetary nebula in the constellation Aquarius. At approximately 655 light-years from Earth, it is one of the closest of the bright planetary nebulae.
The planetary nebula is formed by the shedding of the outer layers of its central star near the end of its evolution. The energy from the central star causes the expelled gases to fluoresce.
High resolution image and technical details on Telescopius: https://telescopius.com/pictures/view/201732/deep_sky/ngc-7293/helix-nebula/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #PlaneratyNebula #DeepSky #space #NGC7293 #KStars #ekos #phd2 #GIMP
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The Helix Nebula (NGC 7293) is a planetary nebula in the constellation Aquarius. At approximately 655 light-years from Earth, it is one of the closest of the bright planetary nebulae.
The planetary nebula is formed by the shedding of the outer layers of its central star near the end of its evolution. The energy from the central star causes the expelled gases to fluoresce.
High resolution image and technical details on Telescopius: https://telescopius.com/pictures/view/201732/deep_sky/ngc-7293/helix-nebula/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #PlaneratyNebula #DeepSky #space #NGC7293 #KStars #ekos #phd2 #GIMP
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The Helix Nebula (NGC 7293) is a planetary nebula in the constellation Aquarius. At approximately 655 light-years from Earth, it is one of the closest of the bright planetary nebulae.
The planetary nebula is formed by the shedding of the outer layers of its central star near the end of its evolution. The energy from the central star causes the expelled gases to fluoresce.
High resolution image and technical details on Telescopius: https://telescopius.com/pictures/view/201732/deep_sky/ngc-7293/helix-nebula/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #PlaneratyNebula #DeepSky #space #NGC7293 #KStars #ekos #phd2 #GIMP
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Some nights the guiding is poor, some nights it is good. Tonight it is very good.
With the RA and Dec curves so flat, I would say it is dead good!
With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!
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Some nights the guiding is poor, some nights it is good. Tonight it is very good.
With the RA and Dec curves so flat, I would say it is dead good!
With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!
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Some nights the guiding is poor, some nights it is good. Tonight it is very good.
With the RA and Dec curves so flat, I would say it is dead good!
With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!
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Some nights the guiding is poor, some nights it is good. Tonight it is very good.
With the RA and Dec curves so flat, I would say it is dead good!
With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!
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Some nights the guiding is poor, some nights it is good. Tonight it is very good.
With the RA and Dec curves so flat, I would say it is dead good!
With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!
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Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/199742/deep_sky/sh-2-155/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-155 #RGBHa #KStars #ekos #phd2 #GIMP
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Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/199742/deep_sky/sh-2-155/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-155 #RGBHa #KStars #ekos #phd2 #GIMP
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Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/199742/deep_sky/sh-2-155/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-155 #RGBHa #KStars #ekos #phd2 #GIMP
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Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/199742/deep_sky/sh-2-155/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-155 #RGBHa #KStars #ekos #phd2 #GIMP
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Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/199742/deep_sky/sh-2-155/by-drgfreeman
Image license: CC BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-155 #RGBHa #KStars #ekos #phd2 #GIMP
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The turnout was great though, we estimate about 120-150 people showed up, which is not bad for a small town of about 36k population.
We had a film on the history of astronomy on an inflatable screen and about a dozen telescopes, have visual, half astrophotography.
It was great to show our astrophotography images and equipment and answer a lot of good questions.
Despite the smoke, I was able to do a polar alignment using astrometry and capture some live images of the North America and Pelican nebulae which were almost at the zenith and were bright enough to "pierce" thru the smoke.
2/
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Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.
#astrophotography #astronomy #astrodon #kstars #ekos #phd2 #IC5146 #Nebula #space
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Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.
#astrophotography #astronomy #astrodon #kstars #ekos #phd2 #IC5146 #Nebula #space
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Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.
#astrophotography #astronomy #astrodon #kstars #ekos #phd2 #IC5146 #Nebula #space
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Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.
#astrophotography #astronomy #astrodon #kstars #ekos #phd2 #IC5146 #Nebula #space
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Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.
#astrophotography #astronomy #astrodon #kstars #ekos #phd2 #IC5146 #Nebula #space
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My flat panel setup: a sideways laptop with a simple, auto-refreshing, html page with uniform background color opened full-screen. I `ssh` into the laptop to adjust the background color to get the desired level for each color channel depending on the filter used.
#astrophotography #astronomy #astrodon #calibration #ekos #kstars #astroberry #remmina #vim #ssh #pop_os #DYI
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My flat panel setup: a sideways laptop with a simple, auto-refreshing, html page with uniform background color opened full-screen. I `ssh` into the laptop to adjust the background color to get the desired level for each color channel depending on the filter used.
#astrophotography #astronomy #astrodon #calibration #ekos #kstars #astroberry #remmina #vim #ssh #pop_os #DYI
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My flat panel setup: a sideways laptop with a simple, auto-refreshing, html page with uniform background color opened full-screen. I `ssh` into the laptop to adjust the background color to get the desired level for each color channel depending on the filter used.
#astrophotography #astronomy #astrodon #calibration #ekos #kstars #astroberry #remmina #vim #ssh #pop_os #DYI
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My flat panel setup: a sideways laptop with a simple, auto-refreshing, html page with uniform background color opened full-screen. I `ssh` into the laptop to adjust the background color to get the desired level for each color channel depending on the filter used.
#astrophotography #astronomy #astrodon #calibration #ekos #kstars #astroberry #remmina #vim #ssh #pop_os #DYI
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My flat panel setup: a sideways laptop with a simple, auto-refreshing, html page with uniform background color opened full-screen. I `ssh` into the laptop to adjust the background color to get the desired level for each color channel depending on the filter used.
#astrophotography #astronomy #astrodon #calibration #ekos #kstars #astroberry #remmina #vim #ssh #pop_os #DYI
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SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.
This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/195532/deep_sky/open-cluster/sh-2-119/by-drgfreeman
Image license: CC-BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-119 #sho #kstars #ekos #phd2 #DarkTable
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SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.
This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/195532/deep_sky/open-cluster/sh-2-119/by-drgfreeman
Image license: CC-BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-119 #sho #kstars #ekos #phd2 #DarkTable
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SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.
This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/195532/deep_sky/open-cluster/sh-2-119/by-drgfreeman
Image license: CC-BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-119 #sho #kstars #ekos #phd2 #DarkTable
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SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.
This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/195532/deep_sky/open-cluster/sh-2-119/by-drgfreeman
Image license: CC-BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-119 #sho #kstars #ekos #phd2 #DarkTable
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SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.
This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.
Technical details, high resolution and annotated versions available on Telescopius: https://telescopius.com/pictures/view/195532/deep_sky/open-cluster/sh-2-119/by-drgfreeman
Image license: CC-BY-NC-SA 4.0.
#astrophotography #astronomy #photography #astrodon #nebula #DeepSky #space #sh2-119 #sho #kstars #ekos #phd2 #DarkTable
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The Crescent Nebula (NGC6888) is a cosmic bubble about 25 light-years across, in the constellation Cygnus, blown by winds from its central massive Wolf-Rayet star (WR136).
This image was captured on July 26 & 28 under quite bad sky conditions; low transparency due to smoke from wild fires in the West combined with Moon illumination.
Annotated version & technical details on Telescopius: https://telescopius.com/pictures/view/195218/deep_sky/crescent-nebula/diffuse-nebula/crescent-nebula/by-drgfreeman
Image license: CC-BY-NC-SA 4.0
#astrophotography #astronomy #nebula #deepsky #photography #astroberry #kstars #ekos #phd2 #darktable #astrodon #ngc6888