by APOD Robot » Tue May 04, 2021 4:05 am
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.
[url=https://apod.nasa.gov/apod/ap210504.html] [img]https://apod.nasa.gov/apod/calendar/S_210504.jpg[/img] [size=150]Space Station, Solar Prominences, Sun[/size][/url]
[b] Explanation: [/b] [url=https://www.youtube.com/watch?v=8Nho44lGVV8]That's no[/url] sunspot. It's the [url=https://apod.nasa.gov/apod/ap160418.html]International Space Station[/url] (ISS) caught passing in front of the Sun. [url=https://apod.nasa.gov/apod/ap051106.html]Sunspot[/url]s, individually, have a dark central [url=https://en.wikipedia.org/wiki/Sunspot]umbra[/url], a lighter surrounding [url=https://apod.nasa.gov/apod/ap060909.html]penumbra[/url], and [url=https://www.petsworld.in/blog/wp-content/uploads/2017/01/Pic-2.jpeg]no Dragon capsules attached[/url]. By contrast, the [url=https://www.nasa.gov/mission_pages/station/main/index.html]ISS[/url] is a complex and multi-spired mechanism, one of the largest and most [url=https://www.nytimes.com/2020/11/02/science/international-space-station-20-anniversary.html]complicated spacecraft[/url] ever created by [url=https://apod.nasa.gov/apod/ap190818.html]humanity[/url]. Also, [url=https://apod.nasa.gov/apod/ap141022.html]sunspots circle[/url] the [url=https://solarsystem.nasa.gov/solar-system/sun/overview/]Sun[/url], whereas the [url=https://apod.nasa.gov/apod/ap161105.html]ISS[/url] orbits the [url=https://apod.nasa.gov/apod/ap070325.html]Earth[/url]. Transiting the Sun is not very unusual for the [url=https://apod.nasa.gov/apod/ap050729.html]ISS[/url], which orbits the Earth about every 90 minutes, but getting one's location, timing and equipment just right for a [url=https://apod.nasa.gov/apod/ap170828.html]great image[/url] is rare. The [url=https://www.instagram.com/p/COGbC01guiS/]featured picture[/url] combined three images all taken from the same location and at nearly the same time. One image -- overexposed -- captured the faint [url=https://apod.nasa.gov/apod/ap160306.html]prominence[/url]s seen across the top of the Sun, a second image -- underexposed -- captured the complex texture of the [url=https://nso.edu/for-public/sun-science/chromosphere/]Sun's chromosphere[/url], while the third image -- the hardest to get -- captured the space station as it [url=https://apod.nasa.gov/apod/image/2105/Chromosphere.mp4]shot across[/url] the Sun in a fraction of a second. [url=https://buenavet.com/wp-content/uploads/2018/01/Cat_Fish_Bowl.jpg]Close inspection[/url] of the space station's [url=https://apod.nasa.gov/apod/ap140803.html]silhouette[/url] even reveals a docked [url=https://en.wikipedia.org/wiki/SpaceX_Dragon_2]Dragon Crew capsule[/url].
[table][tr][td=left][url=http://asterisk.apod.com/discuss_apod.php?date=210503][b]<< Previous APOD[/b][/url][/td] [td=center][url=http://asterisk.apod.com/view_retro.php?date=0504][b]This Day in APOD[/b][/url][/td] [td=right][url=http://asterisk.apod.com/discuss_apod.php?date=210505][b]Next APOD >>[/b][/url][/td][/tr][/table]