New answers tagged light
6
votes
What is the ring of light around the moon and which star seen near it?
Answering only the 2nd question, "There is a star near the moon. Is this Venus?", as others have noted, it's not Venus, it's Jupiter.
But it's interesting to note that, assuming the moon in ...
- 161
4
votes
What is the ring of light around the moon and which star seen near it?
The ring you are referring to is called the Moon Ring. Although not clearly visible in your picture. Attached below is one I clicked on the night of 24th November 2023 from my phone. The ring appears ...
10
votes
What is the ring of light around the moon and which star seen near it?
tl;dr astrophotographers shouldn't carry their cameras in their pockets :-)
I took photos of the Moon and Jupiter with my cell phone last night as well.
I keep my phone in my pocket and the lens ...
- 31.4k
14
votes
What is the ring of light around the moon and which star seen near it?
If the photo is from today (24 November 2023), then the "star" is Jupiter, a planet.
It's hard to see any ring around the moon in the photo, but rings are typically due to high clouds, and ...
- 4,304
4
votes
Why is the H-alpha line slightly shorter in wavelength (656.28 nm) in air than in vacuum (656.46 nm)? Shouldn't it be longer?
This is not due to where the light is emitted, but where it is measured.
When light enters a medium, such as air, it slows down. This is called refraction (and is the reason that prisms etc can bend ...
- 116k
Top 50 recent answers are included