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#solarobserving — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #solarobserving, aggregated by home.social.

  1. My favorite image from this morning’s observing run is actually a screenshot made during processing. It seems every time we attempted to finalize edits, the software essentially threw up! So before finalizing this one, we made a screen capture and I’m glad! Numerous spicules can be seen along the rim, and the prominence itself has an unexpected dynamical look. Three cone-shaped filament segments add to the scene. #solarobserving #solarastronomy #sun

  2. I took a picture of a busy Sun through my office window at lunch today. The views through the eyepiece are actually sharper than this, but still I am pleased to be able to do any observing this winter! Obviously I can't do any critical or high power observing, but using my 30mm GSO SuperView eyepiece through my 4" refractor, I get 22x. See ALT tag for image details.

    #Astrophotography #Astronomy #Celestron #Canon #PrimeFocus #Sun #Solar #SolarObserving #Space #Photography #Telescope #SolarSystem

  3. I took a picture of a busy Sun through my office window at lunch today. The views through the eyepiece are actually sharper than this, but still I am pleased to be able to do any observing this winter! Obviously I can't do any critical or high power observing, but using my 30mm GSO SuperView eyepiece through my 4" refractor, I get 22x. See ALT tag for image details.

    #Astrophotography #Astronomy #Celestron #Canon #PrimeFocus #Sun #Solar #SolarObserving #Space #Photography #Telescope #SolarSystem

  4. I took a picture of a busy Sun through my office window at lunch today. The views through the eyepiece are actually sharper than this, but still I am pleased to be able to do any observing this winter! Obviously I can't do any critical or high power observing, but using my 30mm GSO SuperView eyepiece through my 4" refractor, I get 22x. See ALT tag for image details.

    #Astrophotography #Astronomy #Celestron #Canon #PrimeFocus #Sun #Solar #SolarObserving #Space #Photography #Telescope #SolarSystem

  5. I took a picture of a busy Sun through my office window at lunch today. The views through the eyepiece are actually sharper than this, but still I am pleased to be able to do any observing this winter! Obviously I can't do any critical or high power observing, but using my 30mm GSO SuperView eyepiece through my 4" refractor, I get 22x. See ALT tag for image details.

    #Astrophotography #Astronomy #Celestron #Canon #PrimeFocus #Sun #Solar #SolarObserving #Space #Photography #Telescope #SolarSystem

  6. I took a picture of a busy Sun through my office window at lunch today. The views through the eyepiece are actually sharper than this, but still I am pleased to be able to do any observing this winter! Obviously I can't do any critical or high power observing, but using my 30mm GSO SuperView eyepiece through my 4" refractor, I get 22x. See ALT tag for image details.

    #Astrophotography #Astronomy #Celestron #Canon #PrimeFocus #Sun #Solar #SolarObserving #Space #Photography #Telescope #SolarSystem

  7. The Sun Endures. The partly-cloudy sky today offered plenty of openings to deep blue sky, 26℉, and light winds produced good seeing for an interesting cluster of active regions!

    AR3976 was reportedly the source of a powerful, sub X-Class flare January 31. The resulting CME is expected to narrowly miss Earth on February 3.

    #sunspots #sun #solarobserving #solarimaging #spaceweather #astronomy

  8. The Sun Endures. The partly-cloudy sky today offered plenty of openings to deep blue sky, 26℉, and light winds produced good seeing for an interesting cluster of active regions!

    AR3976 was reportedly the source of a powerful, sub X-Class flare January 31. The resulting CME is expected to narrowly miss Earth on February 3.

    #sunspots #sun #solarobserving #solarimaging #spaceweather #astronomy

  9. The Sun Endures. The partly-cloudy sky today offered plenty of openings to deep blue sky, 26℉, and light winds produced good seeing for an interesting cluster of active regions!

    AR3976 was reportedly the source of a powerful, sub X-Class flare January 31. The resulting CME is expected to narrowly miss Earth on February 3.

    #sunspots #sun #solarobserving #solarimaging #spaceweather #astronomy

  10. The Sun Endures. The partly-cloudy sky today offered plenty of openings to deep blue sky, 26℉, and light winds produced good seeing for an interesting cluster of active regions!

    AR3976 was reportedly the source of a powerful, sub X-Class flare January 31. The resulting CME is expected to narrowly miss Earth on February 3.

    #sunspots #sun #solarobserving #solarimaging #spaceweather #astronomy

  11. The Sun Endures. The partly-cloudy sky today offered plenty of openings to deep blue sky, 26℉, and light winds produced good seeing for an interesting cluster of active regions!

    AR3976 was reportedly the source of a powerful, sub X-Class flare January 31. The resulting CME is expected to narrowly miss Earth on February 3.

    #sunspots #sun #solarobserving #solarimaging #spaceweather #astronomy

  12. The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. False color applied.

    In addition to photographing Earth’s Sun in white light nearly every clear day, we occasionally set up the heavy telescope mount and bring out the new hydrogen-alpha (Ha) telescope for a bit of visual observing and unique imaging. It’s a bit of work since, without an observatory building we usually feel we need to take down and store away the mount after each session, so we don’t do that every day.

    On November 8 we had clear skies, good atmospheric conditions, and the inclination to do the Ha setup and were rewarded with splendid views plus our best Sun images yet.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and hints of spicules along Sun’s limb, and several large filaments. The dark spots in the upper left-hand corner of this picture is a group of sunspots at active region 3889.

    Across the solar disk were visible large and distinct filaments — prominence loops seen from “above” — as well as sunspots and swirling patterns in the solar atmosphere around them. All around the Sun’s limb could be seen prominences glowing against a background of black space. Some of the prominences, which are fountain-like sprays and loops of magnetically-charged plasma, were quite large.

    A major part of producing good images is what happens away from the telescope. Our usual practice is to record video of the telescope view and use software, in the office, to sort through thousands of video image frames, then stack the best few hundred to form a single still image. The still image is then edited to bring out as much detail and tonal range as possible. This process, which is common in astrophotography, produces a sharper image than what might be acquired via any single photographic “snapshot” owing largely to atmospheric turbulence.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and spicules along Sun’s limb. The dark spot just above the center of this picture is a large sunspot at active region 3879.

    There’s room for improvement, and we’re seeing excellent progress, but the images shown here are our best yet of Sun in hydrogen-alpha light.

    Note: H-a light is that which Sun is producing in its chromosphere — the solar atmospheric layer between the outer corona and the lower photosphere — and is invisible even to protected human vision and white light cameras. Specialized optics are required to block other wavelengths found in white light and allow observation of Ha. When we observe or image in white light, we’re actually viewing features such as sunspots while looking through both the corona and the chromosphere!

    Safety Note: It is not safe to look directly at the sun without specialized eye protection for solar viewing, and safe solar filters for telescope, binocular, or camera use. Permanent damage to vision can result from improper viewing of the sun.

    The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. Image was recorded and presented here in monochrome.

    https://stellalunaobservatory.space/2024/11/10/our-best-sun-images-yet/

    #astronomy #astrophotography #solar #solarimaging #solarobserving #sun #sunspots

  13. The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. False color applied.

    In addition to photographing Earth’s Sun in white light nearly every clear day, we occasionally set up the heavy telescope mount and bring out the new hydrogen-alpha (Ha) telescope for a bit of visual observing and unique imaging. It’s a bit of work since, without an observatory building we usually feel we need to take down and store away the mount after each session, so we don’t do that every day.

    On November 8 we had clear skies, good atmospheric conditions, and the inclination to do the Ha setup and were rewarded with splendid views plus our best Sun images yet.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and hints of spicules along Sun’s limb, and several large filaments. The dark spots in the upper left-hand corner of this picture is a group of sunspots at active region 3889.

    Across the solar disk were visible large and distinct filaments — prominence loops seen from “above” — as well as sunspots and swirling patterns in the solar atmosphere around them. All around the Sun’s limb could be seen prominences glowing against a background of black space. Some of the prominences, which are fountain-like sprays and loops of magnetically-charged plasma, were quite large.

    A major part of producing good images is what happens away from the telescope. Our usual practice is to record video of the telescope view and use software, in the office, to sort through thousands of video image frames, then stack the best few hundred to form a single still image. The still image is then edited to bring out as much detail and tonal range as possible. This process, which is common in astrophotography, produces a sharper image than what might be acquired via any single photographic “snapshot” owing largely to atmospheric turbulence.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and spicules along Sun’s limb. The dark spot just above the center of this picture is a large sunspot at active region 3879.

    There’s room for improvement, and we’re seeing excellent progress, but the images shown here are our best yet of Sun in hydrogen-alpha light.

    Note: H-a light is that which Sun is producing in its chromosphere — the solar atmospheric layer between the outer corona and the lower photosphere — and is invisible even to protected human vision and white light cameras. Specialized optics are required to block other wavelengths found in white light and allow observation of Ha. When we observe or image in white light, we’re actually viewing features such as sunspots while looking through both the corona and the chromosphere!

    Safety Note: It is not safe to look directly at the sun without specialized eye protection for solar viewing, and safe solar filters for telescope, binocular, or camera use. Permanent damage to vision can result from improper viewing of the sun.

    The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. Image was recorded and presented here in monochrome.

    https://stellalunaobservatory.space/2024/11/10/our-best-sun-images-yet/

    #astronomy #astrophotography #solar #solarimaging #solarobserving #sun #sunspots

  14. The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. False color applied.

    In addition to photographing Earth’s Sun in white light nearly every clear day, we occasionally set up the heavy telescope mount and bring out the new hydrogen-alpha (Ha) telescope for a bit of visual observing and unique imaging. It’s a bit of work since, without an observatory building we usually feel we need to take down and store away the mount after each session, so we don’t do that every day.

    On November 8 we had clear skies, good atmospheric conditions, and the inclination to do the Ha setup and were rewarded with splendid views plus our best Sun images yet.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and hints of spicules along Sun’s limb, and several large filaments. The dark spots in the upper left-hand corner of this picture is a group of sunspots at active region 3889.

    Across the solar disk were visible large and distinct filaments — prominence loops seen from “above” — as well as sunspots and swirling patterns in the solar atmosphere around them. All around the Sun’s limb could be seen prominences glowing against a background of black space. Some of the prominences, which are fountain-like sprays and loops of magnetically-charged plasma, were quite large.

    A major part of producing good images is what happens away from the telescope. Our usual practice is to record video of the telescope view and use software, in the office, to sort through thousands of video image frames, then stack the best few hundred to form a single still image. The still image is then edited to bring out as much detail and tonal range as possible. This process, which is common in astrophotography, produces a sharper image than what might be acquired via any single photographic “snapshot” owing largely to atmospheric turbulence.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and spicules along Sun’s limb. The dark spot just above the center of this picture is a large sunspot at active region 3879.

    There’s room for improvement, and we’re seeing excellent progress, but the images shown here are our best yet of Sun in hydrogen-alpha light.

    Note: H-a light is that which Sun is producing in its chromosphere — the solar atmospheric layer between the outer corona and the lower photosphere — and is invisible even to protected human vision and white light cameras. Specialized optics are required to block other wavelengths found in white light and allow observation of Ha. When we observe or image in white light, we’re actually viewing features such as sunspots while looking through both the corona and the chromosphere!

    Safety Note: It is not safe to look directly at the sun without specialized eye protection for solar viewing, and safe solar filters for telescope, binocular, or camera use. Permanent damage to vision can result from improper viewing of the sun.

    The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. Image was recorded and presented here in monochrome.

    https://stellalunaobservatory.space/2024/11/10/our-best-sun-images-yet/

    #astronomy #astrophotography #solar #solarimaging #solarobserving #sun #sunspots

  15. The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. False color applied.

    In addition to photographing Earth’s Sun in white light nearly every clear day, we occasionally set up the heavy telescope mount and bring out the new hydrogen-alpha (Ha) telescope for a bit of visual observing and unique imaging. It’s a bit of work since, without an observatory building we usually feel we need to take down and store away the mount after each session, so we don’t do that every day.

    On November 8 we had clear skies, good atmospheric conditions, and the inclination to do the Ha setup and were rewarded with splendid views plus our best Sun images yet.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and hints of spicules along Sun’s limb, and several large filaments. The dark spots in the upper left-hand corner of this picture is a group of sunspots at active region 3889.

    Across the solar disk were visible large and distinct filaments — prominence loops seen from “above” — as well as sunspots and swirling patterns in the solar atmosphere around them. All around the Sun’s limb could be seen prominences glowing against a background of black space. Some of the prominences, which are fountain-like sprays and loops of magnetically-charged plasma, were quite large.

    A major part of producing good images is what happens away from the telescope. Our usual practice is to record video of the telescope view and use software, in the office, to sort through thousands of video image frames, then stack the best few hundred to form a single still image. The still image is then edited to bring out as much detail and tonal range as possible. This process, which is common in astrophotography, produces a sharper image than what might be acquired via any single photographic “snapshot” owing largely to atmospheric turbulence.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and spicules along Sun’s limb. The dark spot just above the center of this picture is a large sunspot at active region 3879.

    There’s room for improvement, and we’re seeing excellent progress, but the images shown here are our best yet of Sun in hydrogen-alpha light.

    Note: H-a light is that which Sun is producing in its chromosphere — the solar atmospheric layer between the outer corona and the lower photosphere — and is invisible even to protected human vision and white light cameras. Specialized optics are required to block other wavelengths found in white light and allow observation of Ha. When we observe or image in white light, we’re actually viewing features such as sunspots while looking through both the corona and the chromosphere!

    Safety Note: It is not safe to look directly at the sun without specialized eye protection for solar viewing, and safe solar filters for telescope, binocular, or camera use. Permanent damage to vision can result from improper viewing of the sun.

    The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. Image was recorded and presented here in monochrome.

    https://stellalunaobservatory.space/2024/11/10/our-best-sun-images-yet/

    #astronomy #astrophotography #solar #solarimaging #solarobserving #sun #sunspots

  16. The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. False color applied.

    In addition to photographing Earth’s Sun in white light nearly every clear day, we occasionally set up the heavy telescope mount and bring out the new hydrogen-alpha (Ha) telescope for a bit of visual observing and unique imaging. It’s a bit of work since, without an observatory building we usually feel we need to take down and store away the mount after each session, so we don’t do that every day.

    On November 8 we had clear skies, good atmospheric conditions, and the inclination to do the Ha setup and were rewarded with splendid views plus our best Sun images yet.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and hints of spicules along Sun’s limb, and several large filaments. The dark spots in the upper left-hand corner of this picture is a group of sunspots at active region 3889.

    Across the solar disk were visible large and distinct filaments — prominence loops seen from “above” — as well as sunspots and swirling patterns in the solar atmosphere around them. All around the Sun’s limb could be seen prominences glowing against a background of black space. Some of the prominences, which are fountain-like sprays and loops of magnetically-charged plasma, were quite large.

    A major part of producing good images is what happens away from the telescope. Our usual practice is to record video of the telescope view and use software, in the office, to sort through thousands of video image frames, then stack the best few hundred to form a single still image. The still image is then edited to bring out as much detail and tonal range as possible. This process, which is common in astrophotography, produces a sharper image than what might be acquired via any single photographic “snapshot” owing largely to atmospheric turbulence.

    Using a Barlow lens to zoom for a closer view, we see large and small prominences and spicules along Sun’s limb. The dark spot just above the center of this picture is a large sunspot at active region 3879.

    There’s room for improvement, and we’re seeing excellent progress, but the images shown here are our best yet of Sun in hydrogen-alpha light.

    Note: H-a light is that which Sun is producing in its chromosphere — the solar atmospheric layer between the outer corona and the lower photosphere — and is invisible even to protected human vision and white light cameras. Specialized optics are required to block other wavelengths found in white light and allow observation of Ha. When we observe or image in white light, we’re actually viewing features such as sunspots while looking through both the corona and the chromosphere!

    Safety Note: It is not safe to look directly at the sun without specialized eye protection for solar viewing, and safe solar filters for telescope, binocular, or camera use. Permanent damage to vision can result from improper viewing of the sun.

    The complete solar disk as recorded in hydrogen-alpha light. The “worm-shaped” shadows seen in several areas are filaments. The dark spots are, yes, sunspots. And around the rim or limb of the solar disk are seen prominences — geysers of solar plasma riding magnetic field lines before crashing back into the sun. Image was recorded and presented here in monochrome.

    https://stellalunaobservatory.space/2024/11/10/our-best-sun-images-yet/

    #astronomy #astrophotography #science #solar #solarimaging #solarobserving #space #sun #sunspots

  17. On Monday 8th May at 7pm I'm doing my brand new talk "A Beginner's Guide to Observing & Photographing the Sun" for Newtown AS. It's online & open to non-members for £3 but you need to book before 10pm tonight! Email [email protected] for details
    #SolarAstrophotography #SolarFeatures #Sunspots #SolarObserving