Star Magnitude (Brightness) Explained

A basic stargazing principle is that of stellar magnitude. Learn how astronomers classify stars based upon their brightness and explore a brief history of how this system came to be.

Chapters:
0:00 - Intro
1:26 - Brief History of Star Magnitude
4:07 - Apparent versus Absolute Magnitude
6:11 - Examples Star Magnitude
8:41 - Limitations of the Magnitude System
9:54 - How far the Hubble SpaceTelescope see?

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#learnthesky #stargazing #constellations #stars #keeplookingup

[oxicatblack]

very knowledgeable video and your voice is so clear and enjoyable, for the kind of topic 👏 tanks for not adding, back ground music👍🌏😊

[wormholetocosmos]

Absolutely amazing I am so addicted to your videos.👍👍👍

[droondexdz]

Thank you, you are the greatest teacher in the world...

[kurpadmurthy]

Great to know the inverse relationship between the Brightness to the thank you for Great videos.

[mazyar_]

Thank you for your explanation it's very helpful. Just a sidenote, the image around 1:50 is not of Hipparchus but Raphael's depiction of Zoroaster who was also a legendary astronomer.

[fernandobautista]

I wish I knew all of this before, anyway massive thanks to you teacher.

[poonamkifoodshiksha]

Fact: (no hate) but the sirius is -1.65. Just correcting no hate I am addicted to ur videos. Love you❤️✨

[lakshayu]

thank you for this video it really helped me

[kishoregovinde]

This video is very informative.
Thanks

[nnenone]

Ayo that was some smooth outro lol ... And nice work

[lakhanshahi]

Very very interesting information video. Kathmandu

[rifatzehra]

Heloo, great video
But can you make one on the mathematical approach like the calcululation of magnitudes in depths etc

[kishoregovinde]

Thank you for your videos. Immensely useful in understanding the night sky. 👌👍

[d_mihai]

Hi, great video, very informative.
You said at 10:34 'James Webb "also" has an infrared camera'?
What other cameras does it have?

[wi]

I want my natural sky and freedom of pointings

[claudelebel]

Is there an advantage to having an inverse scale? If not why don't astronomers agree to make it more intuitive?

[luketube]

So many videos on what apparent/absolute magnitude IS, how to USE the numbers on a scale, but no one explains how to FIND those numbers. Where does 0.87 or -0.63 come from ? How do you actually get that number? I know it's to do with filtering light, but I can't find any video that talks about how to get those numbers.

[keqinggod]

Without stellar magnitude.;..with the same distance which is brighter 1st magnitude or 6th magnitude? i thought sixth magnitude is brighter between the two..limited by its brightness because of the distance

[clarkg]

Are you saying that they can only measure stars absolute magnitude if they are at 10 parsecs away from earth, or 32.6 light years? Is that figurative or literal? Do you know if there is a reason for that particular distance to be used for this value determination? Sorry don't mean to be difficult, your video's are very informative, thank-you for sharing. : )

[claudelebel]

Is a magnitude 4 object 10X brighter than a mag 5 ?