Andrew Mann

amann.bsky.social

16 October 2026 15:19

I'm not so sure why blue=cold, but red=hot makes a lot of sense if you don't realize that the object is actually bluer than it was before, you just didn't notice because all of the emission was outside your vision.

Andrew Mann

amann.bsky.social

16 October 2026 15:19

because "hot" is when something starts to emit rather than reflect to an optical observer. So your stove turns red and a fire turns red. Even with modern high-temperature systems, it's rare for something you see every day to get hot enough to be blue.

Astronomy on Tap HQ

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04 January 2024 21:36

Plus a “warm up” event featuring some high-energy astrophysics (get it?!?) on Saturday, January 6! astronomyontap.org/event/aot-ph...

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04 January 2024 21:36

We are ONE WEEK from what could be our biggest event EVER! If you’ll be in #NOLA for #AAS243, you don’t want to miss it! Register for FREE here: aot.Eventbrite.com

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04 January 2024 21:36

BIG NEWS for #AAS243 in #NOLA - two events in a brand new city for us, including what could be our biggest event EVER! Please share! astronomyontap.org/event/aot-al...