APOD on Nostr: **Astronomy Picture of the Day** 04 December 2024 **Driveway Analemma** ...
**Astronomy Picture of the Day**
04 December 2024
**Driveway Analemma**
https://www.youtube.com/embed/7QB_MOemCqs?rel=0
Image Credit & Copyright:
Nick Wright
Does the Sun return to the same spot on the sky every day? No. A more visual answer is an analemma, a composite of sky images taken at the same time and from the same place over a year. At completion, you can see that the Sun makes a figure 8 on the sky. The featured unusual analemma does not, however, picture the Sun directly: it was created by looking in the opposite direction. All that was required was noting where the shadow of an edge of a house was in the driveway every clear day at the same time. Starting in March in Falcon, Colorado, USA, the photographer methodically marked the shadow's 1 pm location. In one frame you can even see the photographer himself. Although this analemma will be completed in 2025, you can start drawing your own driveway analemma -- using no fancy equipment -- as soon as today.
#APOD #PlanetaryScience #Meteorology #Astroinformatics #Astroenthusiast
https://apod.nasa.gov/apod/ap241204.html
04 December 2024
**Driveway Analemma**
https://www.youtube.com/embed/7QB_MOemCqs?rel=0
Image Credit & Copyright:
Nick Wright
Does the Sun return to the same spot on the sky every day? No. A more visual answer is an analemma, a composite of sky images taken at the same time and from the same place over a year. At completion, you can see that the Sun makes a figure 8 on the sky. The featured unusual analemma does not, however, picture the Sun directly: it was created by looking in the opposite direction. All that was required was noting where the shadow of an edge of a house was in the driveway every clear day at the same time. Starting in March in Falcon, Colorado, USA, the photographer methodically marked the shadow's 1 pm location. In one frame you can even see the photographer himself. Although this analemma will be completed in 2025, you can start drawing your own driveway analemma -- using no fancy equipment -- as soon as today.
#APOD #PlanetaryScience #Meteorology #Astroinformatics #Astroenthusiast
https://apod.nasa.gov/apod/ap241204.html