Celestial Motions, Ep. 5: Solar Analemma

⚠️ Flash/Strobe warning ⚠️
Here’s another one you can do yourself, in real life! Take a picture of the sun every day at the exact same time from the same place. You’ll see its position in the sky at that time will change slowly throughout the year. This is due to the Earth’s tilt, it’s rotational speed, and the slightly elliptical nature of the Earth’s orbit around the sun.
If you superimpose all those images, like the simulation shown here, you will have what’s known as a solar analemma. Depending on what time of day, the shape will be rotated in the sky. In the morning, it lies on its side, whereas at noon, it will be straight up and down.
There are easier ways too, besides taking a picture every day. If you have a large window that faces the sun, just put a piece of tape on the glass where the sun is. Over the year, you will see this same infinity symbol shape emerge. (And it’s ok if you miss a few days due to weather - once a week is enough to see the shape.
Simulation Rendered with ‪@OpenSpaceProj‬
NYC Building Models provided by ‪@nycgov‬ DoITT
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#astronomy #nyc #analemma #nycskyline #manhattan #solarsystem #sunrise #scivis #science #visualization #earth #astro101 #daytime #sun #solar #dataviz

[@nibs8837]

It makes the symbol for infinity! Wonderful!

[@user-Bharatcomputers]

0:47 Great art👍

[@Stilistics-Gaming]

MY EYES 😮

[@Sillyearth]

0:36 my birthday was on this day :D

[@neptusoneptuso8389]

No sé porqué me atrapan tanto estas cosas😍

[@xavmthy9295]

Shame about mixing up Mars and Venus on the right hand side

[@ccnyplanetarium]

How exactly? They look fine.

[@rizzwan-42069]

nah it good fr. wth you talking about.

[@_Chunk]

HOW THis possiple on ball earth?

[@SomuaSomua]

Because the earth has a tilt this is why it happens

[@bertpasquale5616]

The combination of the earth’s tilt (makes the +/-23 deg vertical), and the 3% differential of the earth’s elliptical orbit speed makes the horizontal movement. This video shows the movement of the sun, moon and planets against the celestial sphere using the gravity/solar system 3D modeling. Watch the sun’s position: kzbin.info/www/bejne/nKW4YmadgLeGoMUsi=tQUNgvld7RFPme3J

[@tiziano316]

Infact! Because it' flat! I am not joking at all

[@jesus4400]

Space is FAKE and CGI. Wake up!

[@eduardolamura9594]

​@@tiziano316what

[@iamthefixr]

I just had a seizure, thanks.

[@mercury12146]

they had a warning