ASTRONOMY BASICS: WHAT ARE ARC MINUTES AND ARC SECONDS?
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- Опубликовано: 27 авг 2024
- Hey everyone!
In this video, I will explain what arc minutes and arc seconds are, how they're derived, what they mean, and why they're important in astronomy or astrophotography! #astronomy #astrophotography #math #science
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I took a math refresher course and we went over these types of conversions but you made it make so much practical sense! I feel like it took me 6 lessons to learn what you taught in 30 min.
Dude, you made it clear from the first time! Thanks, man!
This is an excellent explanation, my guy! I really appreciate it! I'm an accountant trying to learn astronomy because of my fascination with the damn universe and how we are all going to die one day, and trying comprehend just how powerful the Sun 🌞 is! Thank you for providing this and sharing your knowledge! I finally understand arc minutes and arc seconds! 🎉
Yes, this was useful in explaining why we want our error to be 1 arc second or less!
Great video, this was very useful. Thank you!
Great video and explanation of the subject. Your approach was perfect starting with basics and going from there. It would be great as a follow-up if you could explain how to read things like a PHD2 log and how it relates to keeping your guiding within 1". Thanks again. Much appreciated.
One of the best videos out there. Thx 🙏
Thank you for this video. The clock analogy made it easy to understand.
Thanks for the video i never new a star was about 1 arc second
It's an average. There are of course bigger and smaller stars relative to us, but it's one of the main reasons why you want your auto guiding error to be around 1 arc second or less.
Very nice video. Love it! it did help me to applicate the knowledge to resolve a guiding issue i had with a super wide setup. Keep the good work!
Yes, this was very helpful. Thanks!
Great tutorial, thanks so much for the upload!
@Nocturne Astro, but 1 gallon = 3.785 liters, not "3.875".... In America we use both metric and imperial, obviously imperial is most common but both are easily convertible. I know this video is old but you used very simple Math and explained it well. I remember this simple unit elimination/conversion from long ago. My question is, from where do the "angular diameters/sizes in degrees" originate from? I ask as I possess no training/education in Astronomy/Astrophotography.
Great explanation, thanks. So confusing how the word 'Arc Minute' implies time when really there's no time involved.
Hello sir.....I actually had a few doubts regarding this problem....can you please clear it?
The angular diameter of Mars from Earth is about 25 arcseconds. This corresponds to a linear size of 6,800 km. The Mars Reconnaissance Orbiter's HIRISE camera, in orbit around Mars, can see details as small as 1 meter. What is the angular resolution of the camera in microarcseconds as viewed from Earth?
Great vid mate! Just a note, shouldnt the arc second in red on the white board be 1.0008" for seconds and not ' which is minute? It could be me...so I am asking!
I think that's a good catch, I missed a '... Hahaha, thanks for pointing that out! I'll have to be more careful! 😱😬
Great video
Okay, so if the Dawes or Rayleigh information when shopping for a scope is less than 1.0, it’s considered a good number. Is this correct? And the higher the stellar magnitude number, the better it is for detecting fainter DSOs. Correct?
Thanks!
1" is inches... would people understand 1As?
Why so complicated? The only thing to know is, that 1° equals 3600arcsec. The rest is simple multiplication ...