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#space_related — Public Fediverse posts

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

  1. grobi @[email protected] ·

    2026 September 20

    Analemma over the Callanish Stones
    * Image Credit & Copyright: Giuseppe Petricca
    astrobin.com/users/gmrphotogra

    Explanation:
    If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox.
    science.nasa.gov/sun/
    en.wikipedia.org/wiki/Analemma
    gmrphotographer.net/wordpress/
    en.wikipedia.org/wiki/Callanish
    en.wikipedia.org/wiki/Outer_He
    en.wikipedia.org/wiki/Scotland
    en.wikipedia.org/wiki/United_K
    en.wikipedia.org/wiki/Callanis
    youtu.be/5mcPHxuVhWk
    history.com/articles/bronze-age
    youtube.com/watch?v=mkbEhp8hJN8
    apod.nasa.gov/apod/ap160822.ht
    spaceplace.nasa.gov/seasons/en/
    mathworld.wolfram.com/Ellipse.
    science.nasa.gov/wp-content/up
    apod.nasa.gov/apod/ap250615.ht
    science.nasa.gov/earth/earth-o
    apod.nasa.gov/apod/ap210922.ht
    unsplash.com/photos/orange-and
    en.wikipedia.org/wiki/Equinox
    mentalfloss.com/article/59049/
    apod.nasa.gov/apod/ap240319.ht

    apod.nasa.gov/apod/ap260920.ht

    #space #astronomy #astrophotography #photography #sun #analemma #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #sun #nasa
  2. grobi @[email protected] ·

    2026 September 20

    Analemma over the Callanish Stones
    * Image Credit & Copyright: Giuseppe Petricca
    astrobin.com/users/gmrphotogra

    Explanation:
    If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox.
    science.nasa.gov/sun/
    en.wikipedia.org/wiki/Analemma
    gmrphotographer.net/wordpress/
    en.wikipedia.org/wiki/Callanish
    en.wikipedia.org/wiki/Outer_He
    en.wikipedia.org/wiki/Scotland
    en.wikipedia.org/wiki/United_K
    en.wikipedia.org/wiki/Callanis
    youtu.be/5mcPHxuVhWk
    history.com/articles/bronze-age
    youtube.com/watch?v=mkbEhp8hJN8
    apod.nasa.gov/apod/ap160822.ht
    spaceplace.nasa.gov/seasons/en/
    mathworld.wolfram.com/Ellipse.
    science.nasa.gov/wp-content/up
    apod.nasa.gov/apod/ap250615.ht
    science.nasa.gov/earth/earth-o
    apod.nasa.gov/apod/ap210922.ht
    unsplash.com/photos/orange-and
    en.wikipedia.org/wiki/Equinox
    mentalfloss.com/article/59049/
    apod.nasa.gov/apod/ap240319.ht

    apod.nasa.gov/apod/ap260920.ht

    #space #astronomy #astrophotography #photography #sun #analemma #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #sun #nasa
  3. grobi @[email protected] ·

    2026 September 20

    Analemma over the Callanish Stones
    * Image Credit & Copyright: Giuseppe Petricca
    astrobin.com/users/gmrphotogra

    Explanation:
    If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox.
    science.nasa.gov/sun/
    en.wikipedia.org/wiki/Analemma
    gmrphotographer.net/wordpress/
    en.wikipedia.org/wiki/Callanish
    en.wikipedia.org/wiki/Outer_He
    en.wikipedia.org/wiki/Scotland
    en.wikipedia.org/wiki/United_K
    en.wikipedia.org/wiki/Callanis
    youtu.be/5mcPHxuVhWk
    history.com/articles/bronze-age
    youtube.com/watch?v=mkbEhp8hJN8
    apod.nasa.gov/apod/ap160822.ht
    spaceplace.nasa.gov/seasons/en/
    mathworld.wolfram.com/Ellipse.
    science.nasa.gov/wp-content/up
    apod.nasa.gov/apod/ap250615.ht
    science.nasa.gov/earth/earth-o
    apod.nasa.gov/apod/ap210922.ht
    unsplash.com/photos/orange-and
    en.wikipedia.org/wiki/Equinox
    mentalfloss.com/article/59049/
    apod.nasa.gov/apod/ap240319.ht

    apod.nasa.gov/apod/ap260920.ht

    #space #astronomy #astrophotography #photography #sun #analemma #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #sun #nasa
  4. grobi @[email protected] ·

    2026 September 20

    Analemma over the Callanish Stones
    * Image Credit & Copyright: Giuseppe Petricca
    astrobin.com/users/gmrphotogra

    Explanation:
    If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox.
    science.nasa.gov/sun/
    en.wikipedia.org/wiki/Analemma
    gmrphotographer.net/wordpress/
    en.wikipedia.org/wiki/Callanish
    en.wikipedia.org/wiki/Outer_He
    en.wikipedia.org/wiki/Scotland
    en.wikipedia.org/wiki/United_K
    en.wikipedia.org/wiki/Callanis
    youtu.be/5mcPHxuVhWk
    history.com/articles/bronze-age
    youtube.com/watch?v=mkbEhp8hJN8
    apod.nasa.gov/apod/ap160822.ht
    spaceplace.nasa.gov/seasons/en/
    mathworld.wolfram.com/Ellipse.
    science.nasa.gov/wp-content/up
    apod.nasa.gov/apod/ap250615.ht
    science.nasa.gov/earth/earth-o
    apod.nasa.gov/apod/ap210922.ht
    unsplash.com/photos/orange-and
    en.wikipedia.org/wiki/Equinox
    mentalfloss.com/article/59049/
    apod.nasa.gov/apod/ap240319.ht

    apod.nasa.gov/apod/ap260920.ht

    #space #astronomy #astrophotography #photography #sun #analemma #NASA #apod #space_related #space_culture_Club #apod

    #analemma #space_culture_club #space_related #apod #nasa #sun
  5. grobi @[email protected] ·

    2026 September 20

    Analemma over the Callanish Stones
    * Image Credit & Copyright: Giuseppe Petricca
    astrobin.com/users/gmrphotogra

    Explanation:
    If you went outside at the same time every day and took a picture that included the Sun, how would the Sun's position change? A visual answer to that question is an analemma, a composite image taken from the same spot at the same time over the course of a year. The featured analemma was composed from images taken every few days at noon near the village of Callanish in the Outer Hebrides in Scotland, UK. In the foreground are the Callanish Stones, a stone circle built around 2700 BC during humanity's Bronze Age. It is not known if the placement of the Callanish Stones has or had astronomical significance. The ultimate causes for the figure-8 shape of this and all analemmas are the tilt of the Earth axis and the ellipticity of the Earth's orbit around the Sun. At the solstices, the Sun will appear at the top or bottom of an analemma. The featured image was taken near the December solstice and so the Sun appears near the bottom. Equinoxes, however, correspond to analemma middle points -- not the intersection point. In two days there will be an equinox ("equal night"), when day and night are equal over all of planet Earth. Many cultures celebrate a change of season at an equinox.
    science.nasa.gov/sun/
    en.wikipedia.org/wiki/Analemma
    gmrphotographer.net/wordpress/
    en.wikipedia.org/wiki/Callanish
    en.wikipedia.org/wiki/Outer_He
    en.wikipedia.org/wiki/Scotland
    en.wikipedia.org/wiki/United_K
    en.wikipedia.org/wiki/Callanis
    youtu.be/5mcPHxuVhWk
    history.com/articles/bronze-age
    youtube.com/watch?v=mkbEhp8hJN8
    apod.nasa.gov/apod/ap160822.ht
    spaceplace.nasa.gov/seasons/en/
    mathworld.wolfram.com/Ellipse.
    science.nasa.gov/wp-content/up
    apod.nasa.gov/apod/ap250615.ht
    science.nasa.gov/earth/earth-o
    apod.nasa.gov/apod/ap210922.ht
    unsplash.com/photos/orange-and
    en.wikipedia.org/wiki/Equinox
    mentalfloss.com/article/59049/
    apod.nasa.gov/apod/ap240319.ht

    apod.nasa.gov/apod/ap260920.ht

    #space #astronomy #astrophotography #photography #sun #analemma #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #sun #nasa
  6. grobi @[email protected] ·

    2026 September 15

    A Daytime Eclipse: Moon Occults Venus
    * Image Credit & Copyright: Arnaud Mariat
    instagram.com/arnomariat/

    Explanation:
    There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
    en.wikipedia.org/wiki/Cessy
    en.wikipedia.org/wiki/France
    science.nasa.gov/moon/
    science.nasa.gov/venus/
    instagram.com/p/DdRTG7osLTK/
    unsplash.com/photos/orange-tab
    apod.nasa.gov/apod/ap230527.ht
    science.nasa.gov/sun/
    apod.nasa.gov/apod/ap240108.ht
    en.wikipedia.org/wiki/Atmosphe
    assets.science.nasa.gov/dynami
    en.wiktionary.org/wiki/occulta
    apod.nasa.gov/apod/ap231116.ht
    science.nasa.gov/earth/earth-o
    science.nasa.gov/image-article

    apod.nasa.gov/apod/ap260915.ht

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa
  7. grobi @[email protected] ·

    2026 September 15

    A Daytime Eclipse: Moon Occults Venus
    * Image Credit & Copyright: Arnaud Mariat
    instagram.com/arnomariat/

    Explanation:
    There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
    en.wikipedia.org/wiki/Cessy
    en.wikipedia.org/wiki/France
    science.nasa.gov/moon/
    science.nasa.gov/venus/
    instagram.com/p/DdRTG7osLTK/
    unsplash.com/photos/orange-tab
    apod.nasa.gov/apod/ap230527.ht
    science.nasa.gov/sun/
    apod.nasa.gov/apod/ap240108.ht
    en.wikipedia.org/wiki/Atmosphe
    assets.science.nasa.gov/dynami
    en.wiktionary.org/wiki/occulta
    apod.nasa.gov/apod/ap231116.ht
    science.nasa.gov/earth/earth-o
    science.nasa.gov/image-article

    apod.nasa.gov/apod/ap260915.ht

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa
  8. grobi @[email protected] ·

    2026 September 15

    A Daytime Eclipse: Moon Occults Venus
    * Image Credit & Copyright: Arnaud Mariat
    instagram.com/arnomariat/

    Explanation:
    There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
    en.wikipedia.org/wiki/Cessy
    en.wikipedia.org/wiki/France
    science.nasa.gov/moon/
    science.nasa.gov/venus/
    instagram.com/p/DdRTG7osLTK/
    unsplash.com/photos/orange-tab
    apod.nasa.gov/apod/ap230527.ht
    science.nasa.gov/sun/
    apod.nasa.gov/apod/ap240108.ht
    en.wikipedia.org/wiki/Atmosphe
    assets.science.nasa.gov/dynami
    en.wiktionary.org/wiki/occulta
    apod.nasa.gov/apod/ap231116.ht
    science.nasa.gov/earth/earth-o
    science.nasa.gov/image-article

    apod.nasa.gov/apod/ap260915.ht

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa
  9. grobi @[email protected] ·

    2026 September 15

    A Daytime Eclipse: Moon Occults Venus
    * Image Credit & Copyright: Arnaud Mariat
    instagram.com/arnomariat/

    Explanation:
    There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
    en.wikipedia.org/wiki/Cessy
    en.wikipedia.org/wiki/France
    science.nasa.gov/moon/
    science.nasa.gov/venus/
    instagram.com/p/DdRTG7osLTK/
    unsplash.com/photos/orange-tab
    apod.nasa.gov/apod/ap230527.ht
    science.nasa.gov/sun/
    apod.nasa.gov/apod/ap240108.ht
    en.wikipedia.org/wiki/Atmosphe
    assets.science.nasa.gov/dynami
    en.wiktionary.org/wiki/occulta
    apod.nasa.gov/apod/ap231116.ht
    science.nasa.gov/earth/earth-o
    science.nasa.gov/image-article

    apod.nasa.gov/apod/ap260915.ht

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space_culture_club #space_related #apod #nasa #eclipse #photography
  10. grobi @[email protected] ·

    2026 September 15

    A Daytime Eclipse: Moon Occults Venus
    * Image Credit & Copyright: Arnaud Mariat
    instagram.com/arnomariat/

    Explanation:
    There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
    en.wikipedia.org/wiki/Cessy
    en.wikipedia.org/wiki/France
    science.nasa.gov/moon/
    science.nasa.gov/venus/
    instagram.com/p/DdRTG7osLTK/
    unsplash.com/photos/orange-tab
    apod.nasa.gov/apod/ap230527.ht
    science.nasa.gov/sun/
    apod.nasa.gov/apod/ap240108.ht
    en.wikipedia.org/wiki/Atmosphe
    assets.science.nasa.gov/dynami
    en.wiktionary.org/wiki/occulta
    apod.nasa.gov/apod/ap231116.ht
    science.nasa.gov/earth/earth-o
    science.nasa.gov/image-article

    apod.nasa.gov/apod/ap260915.ht

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa
  11. grobi @[email protected] ·

    Chance Triple Alignment: Plane, Space Station, Sun
    * Image Credit & Copyright: Petr Horalek / Inst. Physics Opava
    petrhoralek.com/#about-1
    slu.cz/phys/en/

    Explanation:
    This shot captured an unexpected silhouette. Which is it? It isn't the sunspots, the small dark regions caused by concentrated magnetic fields visible around the Sun's bright disk. Sunspots typically last for weeks and were expected, since these spots were seen previously. It isn’t the International Space Station (ISS), the small dark structure on the middle left. This is because the featured picture was planned with sub-second timing to record the iconic structure passing before the Sun. It is the airplane. Just as this exposure was taking place in June, from Prasek in the Czech Republic, an airplane began its own miniature partial eclipse. The result is this triply aligned image of our Sun. The photographer estimates that the chance of any random Sun image containing silhouettes of both a space station and an airplane, from that location, is about 30 million to one.
    science.nasa.gov/sun/sunspots/
    youtu.be/1Nr-KtlMIKI
    apod.nasa.gov/apod/ap260211.ht
    nasa.gov/international-space-s
    apod.nasa.gov/apod/ap220411.ht
    apod.nasa.gov/apod/ap161105.ht
    petrhoralek.com/?p=26197
    apod.nasa.gov/apod/ap250618.ht
    science.nasa.gov/sun/
    grc.nasa.gov/www/k-12/VirtualA
    en.wikipedia.org/wiki/Prasek
    en.wikipedia.org/wiki/Czech_Re
    apod.nasa.gov/apod/ap260903.ht
    unsplash.com/photos/a-group-of
    science.nasa.gov/apod/random-a
    science.nasa.gov/image-article

    petrhoralek.com/?p=26197

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa
  12. grobi @[email protected] ·

    Chance Triple Alignment: Plane, Space Station, Sun
    * Image Credit & Copyright: Petr Horalek / Inst. Physics Opava
    petrhoralek.com/#about-1
    slu.cz/phys/en/

    Explanation:
    This shot captured an unexpected silhouette. Which is it? It isn't the sunspots, the small dark regions caused by concentrated magnetic fields visible around the Sun's bright disk. Sunspots typically last for weeks and were expected, since these spots were seen previously. It isn’t the International Space Station (ISS), the small dark structure on the middle left. This is because the featured picture was planned with sub-second timing to record the iconic structure passing before the Sun. It is the airplane. Just as this exposure was taking place in June, from Prasek in the Czech Republic, an airplane began its own miniature partial eclipse. The result is this triply aligned image of our Sun. The photographer estimates that the chance of any random Sun image containing silhouettes of both a space station and an airplane, from that location, is about 30 million to one.
    science.nasa.gov/sun/sunspots/
    youtu.be/1Nr-KtlMIKI
    apod.nasa.gov/apod/ap260211.ht
    nasa.gov/international-space-s
    apod.nasa.gov/apod/ap220411.ht
    apod.nasa.gov/apod/ap161105.ht
    petrhoralek.com/?p=26197
    apod.nasa.gov/apod/ap250618.ht
    science.nasa.gov/sun/
    grc.nasa.gov/www/k-12/VirtualA
    en.wikipedia.org/wiki/Prasek
    en.wikipedia.org/wiki/Czech_Re
    apod.nasa.gov/apod/ap260903.ht
    unsplash.com/photos/a-group-of
    science.nasa.gov/apod/random-a
    science.nasa.gov/image-article

    petrhoralek.com/?p=26197

    #space #astronomy #astrophotography #photography #eclipse #NASA #apod #space_related #space_culture_Club #apod

    #space #astronomy #astrophotography #photography #eclipse #nasa