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APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 4:05 am
by APOD Robot
Space Station, Solar Prominences, Sun
Explanation: That's no sunspot. It's the
International Space Station (ISS) caught passing in front of the Sun.
Sunspots, individually, have a dark central
umbra, a lighter surrounding
penumbra, and
no Dragon capsules attached. By contrast, the
ISS is a complex and multi-spired mechanism, one of the largest and most
complicated spacecraft ever created by
humanity. Also,
sunspots circle the
Sun, whereas the
ISS orbits the
Earth. Transiting the Sun is not very unusual for the
ISS, which orbits the Earth about every 90 minutes, but getting one's location, timing and equipment just right for a
great image is rare. The
featured picture combined three images all taken from the same location and at nearly the same time. One image -- overexposed -- captured the faint
prominences seen across the top of the Sun, a second image -- underexposed -- captured the complex texture of the
Sun's chromosphere, while the third image -- the hardest to get -- captured the space station as it
shot across the Sun in a fraction of a second.
Close inspection of the space station's
silhouette even reveals a docked
Dragon Crew capsule.
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 11:10 am
by De58te
"One of the largest spacecraft ever created." When people say one of the largest instead of saying THE largest, they usually mean there is another one slightly bigger. Like people rarely say Mount Everest is one of the tallest mountains on Earth. They usually mean that is the tallest. So I wonder which space station is just slightly bigger than the ISS?
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 11:23 am
by orin stepanek
The prominance at the top is huge; reminds of old faithful though!
Was a nice tour they showed of the ISS!
![Cool 8-)](./images/smilies/icon_cool.gif)
Spelunkers would love it!
Aaawww!
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 11:42 am
by Ann
orin stepanek wrote: ↑Tue May 04, 2021 11:23 am
IssSun_Ergun_960.jpg
The prominance at the top is huge; reminds of old faithful though!
ISS02_NASA_960.jpg
Was a nice tour they showed of the ISS!
![Cool 8-)](./images/smilies/icon_cool.gif)
Spelunkers would love it!
Pic-2.jpeg
Aaawww!
Thank you for showing us all these pictures, Orin!
Ann
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 12:10 pm
by neufer
De58te wrote: ↑Tue May 04, 2021 11:10 am
"One of the largest spacecraft ever created." When people say one of the largest instead of saying THE largest, they usually mean there is another one slightly bigger. Like people rarely say Mount Everest is one of the tallest mountains on Earth. They usually mean that is the tallest. So I wonder which space station is just slightly bigger than the ISS?
Saturn V was a 7 times
more massive spacecraft (at take off) and was no doubt of larger total volume.
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 12:27 pm
by E Fish
It's too big to be a space station!
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 1:38 pm
by Sa Ji Tario
De58te, Don't forget the Skaylab and Mir, which are smaller in size but no less important.
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 1:41 pm
by Sa Ji Tario
Everest is the highest among the five in the same mountain range
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Tue May 04, 2021 5:39 pm
by neufer
Everest is the highest peak among five high peaks on the same mountain.
Re: APOD: Space Station, Solar Prominences, Sun (2021 May 04)
Posted: Sat May 08, 2021 3:23 am
by Willb1
De58te wrote: ↑Tue May 04, 2021 11:10 am
"One of the largest spacecraft ever created." When people say one of the largest instead of saying THE largest, they usually mean there is another one slightly bigger. Like people rarely say Mount Everest is one of the tallest mountains on Earth. They usually mean that is the tallest. So I wonder which space station is just slightly bigger than the ISS?
Well, Mount Everest is not the tallest,so they should say Mount Everest is one of the tallest mountains on earth. The title of tallest mountain goes to Mauna Kea in Hawaii.