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Thanks! I'm glad you find the videos enjoyable. I do have a patreon, but I haven't fully set it up yet so it's been sitting dormant for a while. If the demand grows for more long-form videos and additional content, I could definitely give it another go and see where it takes me. I'll post updates about it if I have any!

@@anoushkazarians Thanks! So glad I caught you on Sean Carrols pod cast

@@JoeHynes284 Oh! I didn't know I was featured in it, that's exciting! Can you tag me in a comment in the video or let me know the podcast episode number where you came across my videos? Just curious to see it for myself. (Unless you might have my confused for someone else, which is also possible!)

Thank you for the clarification! I’ll make a note of it in the video description. Should’ve fact-checked more thoroughly before publishing this video when I did.

Glad you found it helpful!

You can convert from eV to joules using the conversion factor: 1 eV = 1.6 x 10^(-19) J. Here, you'd have to multiply by 1.6 x 10^(-19) since that's how many Joules exist in a single eV. However, I just want to point out that the number 1240 in this context has both units of eV *AND* nm, not just eV, otherwise it's missing half the information that comes with it. Hope this helps!

Thanks for letting me know! I imagine the image I found and used in this video was probably photoshopped to show the stars and star trails more clearly, but the math still checks out!

Thank you for the compliment! I’m glad you find the videos enjoyable.

same, quick tip: dont use books for reach for the stars lol... i've always had better work using wikipedia

If you're asking what type of star our Sun will be at an age of 7 billion years, it'll still be considered a main sequence star (as it is today). It may just be a little bit bigger and cooler, but still a main sequence star. If you're asking for 7 billion years from now, when it's about 12 billion years old, it'll be a red giant or supergiant.

@@anoushkazarians Thank you so much for answering. :)) If humanity lives that long, our earth will be gone then.

I'm glad you're exploring astronomy for yourself and found this video helpful! I completely understand that right ascension and declination could be a difficult topic to understand immediately. To answer your question, the right ascension of objects in the sky depends on whether they're permanent features (like stars) or if they move across the background stars like planets, comets, etc. Stars will usually have the same RA value but planets that move across the stars will have different RA/dec values on different days since they're moving across the sky.

I'm not sure which part you're referring to. The whole equation isn't in meters... the units vary as we move through the conversions.

Sorry about my delayed response, I'm just now seeing this! Yes, I think it's fair to say that most dust in the universe, regardless of where it is, can easily be compared to smoke particles!

In astronomy, "dust" (or cosmic dust, in a general sense) refers to solid matter particles that vary in size from anywhere between the size of molecules (really, really tiny) to fractions of millimeters (0.1 mm or so). They're more or less the same size as smoke particles, yes. The differentiation between intergalactic vs interstellar vs interplanetary dust just comes down to WHERE that dust is located. If it's between planets in a solar system, that's interplanetary dust. If it's between stars in a galaxy, that's interstellar dust. If it's floating around between entirely separate galaxies, it's intergalactic dust. It's all dust at the end of the day, but the distinction just tells you where that particular dust is located. Hope this helps!

​@@anoushkazariansthanks