Zum Inhalt springen

Schlagwort: Sun

The Sun’s fluffy corona in exquisite detail

Wow!

This otherworldly, ever-changing landscape is what the Sun looks like up close. ESA’s Solar Orbiter filmed the transition from the Sun’s lower atmosphere to the much hotter outer corona. The hair-like structures are made of charged gas (plasma), following magnetic field lines emerging from the Sun’s interior.

The brightest regions are around one million degrees Celsius, while cooler material looks dark as it absorbs radiation.

This video was recorded on 27 September 2023 by the Extreme Ultraviolet Imager (EUI) instrument on Solar Orbiter. At the time, the spacecraft was at roughly a third of the Earth’s distance from the Sun, heading for a closest approach of 43 million km on 7 October.

On the same day that this video was recorded, NASA’s Parker Solar Probe skimmed just 7.26 million km from the solar surface. Rather than directly imaging the Sun, Parker measures particles and the magnetic field in the Sun’s corona and in the solar wind. This was a perfect opportunity for the two missions to team up, with ESA-led Solar Orbiter’s remote-sensing instruments observing the source region of the solar wind that would subsequently flow past Parker Solar Probe.

Spot the moss, spicules, eruption and rain
Lower left corner: An intriguing feature visible throughout this movie is the bright gas that makes delicate, lace-like patterns across the Sun. This is called coronal ‘moss’. It usually appears around the base of large coronal loops that are too hot or too tenuous to be seen with the chosen instrument settings.


(Direktlink, via Colossal)

Einen Kommentar hinterlassen

Ein Jahrzehnt der Sonne in 61 Minuten

Die NASA hat in den Jahren 2010 bis 2020 jeden Tag Fotos der Sonne gemacht und diese dann zu diesem 61 minütigem Video zusammengefasst. “A Decade of Sun”.

As of June 2020, NASA’s Solar Dynamics Observatory — SDO — has now been watching the Sun non-stop for over a full decade. From its orbit in space around the Earth, SDO has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years. This information has enabled countless new discoveries about the workings of our closest star and how it influences the solar system.


(Direktlink)

Einen Kommentar hinterlassen

Zehn Jahre Sonnenaktivität in einem Zeitraffer von 61 Minuten

Die NASA hat mal eben ein Timelapse veröffentlicht, dass die Aktivität der Sonne der letzten 10 Jahre zeigt. Dafür haben sie 425 Millionen Einzelaufnahmen zusammengesetzt. Da sag ich mal wow.

As of June 2020, NASA’s Solar Dynamics Observatory — SDO — has now been watching the Sun non-stop for over a full decade. From its orbit in space around the Earth, SDO has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years. This information has enabled countless new discoveries about the workings of our closest star and how it influences the solar system.


(Direktlink, via Nag on the lake)

Einen Kommentar hinterlassen

Detaillierteste Aufnahmen der Sonne

Das Inouye Solar Teleskop hat von Hawaii aus die bisher detailliertesten Aufnahmen der Sonne gemacht. Die pulsierenden Plasmawellen sehen aus als würde die Sonne atmen.

We have now seen the smallest details on the largest object in the solar system,” said Inouye telescope director Thomas Rimmele during a January 24 news teleconference.

Covering an area 36,500 kilometers across — roughly three times the diameter of Earth — the images show familiar bubbles of plasma percolating up from the depths. In the dark lanes between the bubbles, newly resolved clusters of bright points appear at the roots of magnetic fields that stretch out into space.


(Direktlink)

Ein Kommentar

Auf dem Armaturenbrett ein Ei braten

Während der Winter hier offenbar doch noch vorbeigucken kommt, herrschen in anderen Teilen der Welt sommerliche Temperaturen. So auch in Australien, wo sich dieser junge Mann hier in unter zwei Minuten mal eben ein Ei auf dem Armaturenbrett seines Autos brät. Praktisch, nur halt viel zu heiß.


(Direktlink)

Ein Kommentar

Eine halbe Stunde in HD die Sonne sehen

Beeindruckende Aufnahmen des NASA Solar Dynamics Observatory. Sound passt auch.

“It’s always shining, always ablaze with light and energy. In the ubiquity of solar output, Earth swims in an endless tide of particles. Every time half of the Earth faces the Sun, we experience the brightness of daytime, the Sun’s energy and light driving weather, biology and more. But in space, NASA’s Solar Dynamics Observatory (SDO) keeps an eye on our nearest star 24/7. SDO captures images of the Sun in 10 different wavelengths, each of which helps highlight a different temperature of solar material. In this video we experience images of the Sun in unprecedented detail captured by SDO. Presented in ultra-high definition video (4K) the video presents the nuclear fire of our life-giving star in intimate detail, offering new perspective into our own relationships with grand forces of the solar system.”

https://youtu.be/6tmbeLTHC_0
(Direktlink)

4 Kommentare