Record🤔

uri:

"at://did:plc:32jhd3zbo5zlj5yc5lcyf7rt/app.bsky.feed.post/3l3z2wzegcq2o"

cid:

"bafyreiczqbdb2hpnl2qlkrkh4gvhdw6yzaeyrkjieiezg6zjfmxtninexm"

value:

text:

"Hey I hear that BlueSky has video now! So here is one of my favorite videos I've worked on at STScI.

How can astronomers know exactly how hot stars are? You can guess from their colors, but to get a precise measurement, you have to look at their spectra.

🎞️ webbtelescope.org/contents/med..."

$type:

"app.bsky.feed.post"

embed:

alt:

"Text: Astronomers Read the Rainbow of Light. To learn about: Temperature. 
Illustrations of three stars, yellow, blue, and red, rotating in the vast universe.
Text: How hot are these stars? 
Text: Light Spectrum. A rainbow-colored bar, a spectrum, appears on screen. Several dark lines are superimposed on the rainbow. Text: Blue star. White lines point to the black bars.

Text: Red star. A new spectrum appears on screen, with a different series of black lines. While lines point to the black bars.

Text: Yellow star. A new spectrum appears on screen, with a different series of black lines. While lines point to the black bars.

The pattern of a star's spectrum indicates its precise temperature. Large blue star, 18,000 degrees Celsius. Medium yellow star, 6,000 degrees. Small red star, 3,000 degrees. Text, Astronomers read light's rainbow to discover each star's story. Absorption lines on six spectra vary by temperature."

$type:

"app.bsky.embed.video"

video:

View blob content

$type:

"blob"

ref:

$link:

"bafkreierlwdadql4addjijf2k5d3ptiimyrepuzuqeuyrdjcfpc5o2emhe"

mimeType:

"video/mp4"

size:

9880155

aspectRatio:

width:

1920

height:

1080

langs:

• "en"

facets:

• index:

  byteEnd:

  298

  byteStart:

  265

  features:

  • uri:

    "https://webbtelescope.org/contents/media/videos/01F9KWXB37VDZXVJVWEBMEQQW9"

    $type:

    "app.bsky.richtext.facet#link"

createdAt:

"2024-09-13T03:57:47.642Z"