I have been searching for MONTHS for introductory tutorials on using Python for astronomy/astrophysics. Who knew it was right here at the AAVSO all along!!! I have some fleeting programming knowledge, and have been talking about learning Python for my job several years. Learning astropy is the extra motivation I needed to dive in, but the tutorials I have seen have been all over the place. This is absolutely terrific because it literally starts with install of Python. It's not for a complete newbie to programming, but if you have even a basic knowledge of coding in any language, this can get you up to speed quickly. So thank you, Lauren. I will be joining the AAVSO this year and look forward to many more tutorials.

It is rather easy to start with Source Extractor under Linux computers, e.g. using Ubuntu version. One just can install a'la 'apt install sextractor psfex' and thats it. Under Windows, one can use Linux subsystem for Windows (actually: install e.g. Ubuntu 24.04 from Microsoft Store) and install all those utilities under that.

Thank you very much for the interesting and entertaining presentation & discussion. Enjoyed it a lot. Greetings from Germany

Thanks for the great presentation, a very likeable speaker, you can listen for hours

Thankyou

Anybody know if the star was visible? I was watching all through August, and September and I'm kinda thinking it's in the southern hemisphere now. Maybe it happened on a cloudy day? My internet searches have come up with cobwebs! Thank you for your help!

Is Astro Molly getting initiated today?

Hi Dennis - That instrument train of yours (in photo) is quite interesting. What are the components, if I may ask? It *appears* as though you have 2 FW's, and 2 OAG's. Is that right? Thanks - and, BTW, **great** presentation, per usual.

This is amazing, I was not aware at all that Exoplanet observing could be conducted with backyard telescopes. Is there currently an international coordinated effort by amateur astronomers to monitor specific stars, like Proxima Centauri, for extended hours each night from various locations globally, with the aim of achieving near-continuous, long-term observational coverage?

Great info, thanks.

Would it be better for me to take classes starting in February of next year or take some classes this year? I’m completely new and don’t want to overwhelm myself if possible.

Just NASA f masons mythology, to hide you the Truth, behind a veil of fake "science". It's all LIES.

that device that you show ,is it for sale

3:00

I think the time stamps are off - from a previous posted video. Would be helpful if they would get updated.

Thank you ;)

Hello, thank you for this broadcast. Do you have an idea of the publication of the Zoom on July 29th, with the theme spectroscopy, high energy (network), photo-electric (photometry). Thank you in advance

Great presentation, very informative! I'm looking forward to seeing this happen in the next few weeks. My theory is that the white dwarf's orbit is gradually decaying because of friction with the accretion disk and outer atmosphere of the red giant. Once it accretes enough material for fusion, the nova annihilates the accretion disk and outer layer of the red giant's atmosphere, except for the material opposite the white dwarf. Half an orbit later the white dwarf reaches the remaining material and it accretes onto the still fusion-hot white dwarf's surface and creates smaller secondary novae. The reflected shockwaves from the novae push the white dwarf back into a higher orbit. 40 years later the atmosphere and disk return and the friction starts again. Repeat ad infinitum.

Thank you all very much for sharing this

We live in amazing world when you can find all this wealth of information for free, a sincere thank you for the content.

Super!! Perfect´´

7/5/24 7:01pm I'm doing a study on something related to this and this is very helpful!

More like how-to-2.5 hours am I right?

Génial ces cours en français, merci à vous

Came from watching another video about Betelgeuse from a channel called Space Matters "We Are Not Ready". Also giving some of these possible explanations to the dimming of the star. Levesque goes into more detail and methods of what the explanation could be. Very interesting.

In the phased-binned graph, the second rise is wider than the pure sine wave indicating that one end on the red giant is larger than the other end. It's a rain-drop shape, likely with the wide end farthest from the white dwarf star. In the orbital period change, if the Nova was one sided - pointing at the red giant - it would act like a jet and push the white dwarf away ... but it slowly comes back, pulled in by the gravitational attraction of the giant..

Is there anything about exoplanets

Perhaps is to late for my question, but anyway - where can I find the Miles Search V1.4 Tool (by Paolo Berardi and Marco Leonardi )? The discussion about this software / spreadsheet is in the Forest Sims' presentation (4:51:36)

oh my goodness, I'm so glad I watched this today (4/25/24), the last pieces of my telescope are coming in today, I'll get started monitoring this as soon as I'm able

Thanks Dr Schaefer. Great piece of research. Thanks for sharing.

Brought her by a link from @DrBecky

Are there any updates of the estimates? How do the current B &V values look like?

Nice presentation

thank you 🌹🌹

great

I still end up mounting binoculars, just much better. I've been doing variable observations for some time in my 7x50s using glasses (astigmatism). It is a pain but something you get used to. I sometimes even use a finderscope instead.

Excelente platica! 🙌🙌, gracias

Hello! Is it possible to observe variable stars with equipment such as a smart telescope? Is this technique suitable for such observations?

Excellent, I have taken a few very amature records using binoculars of a few variables but it is all mainly practice, so never sure if I should submit.

Thank you for doing these awesome instructional series and posting them on KZbin for all to watch!

In 1975 Ian Middlemist and myself, both observing from near Manchester, saw AB Aurigæ fade from about 7m.0 to 8m.4. Strangely the Manchester area had it clear while the rest of Europe was clouded out. In 1997 this behaviour occurred again, recorded by John Toone. This lead us to suspect that it could be an eclipsing system, so another fade could be expected around 2019. This was recorded again by John Toone in September that year, suggesting a period of around 22 years.

so educational! Now I'm picking up my skills on AstroImageJ for funding more Exoplanets

l can't see anything

Is there any software to photometry for Mac?

I was on AB Aurigae last night using a Seestar S50 with the narrowband filter turned on. Seestar's built in narrowband filter passes OIII 30nm/Hα 20nm, and the sensor in Seestar is a 2MP color sensor. If I were to take photometry on only the red pixels, would that transform to the Ha signal they're looking for? Thanks.

Are you interested in observations with Sloan filters, as I don't have Johnson filters? (If by any chance the weather here in Sweden clears. Its been cloudy for 40 days now.)

Hace poco que empecé en el mundo de la astronomía y este es uno de los videos más interesantes que he visto hasta ahora.

I love that this is all women. Encouraging to see as a woman trying to get into making observations.

I'm trying to run the dark frame stacking code in the ccd data reduction guide on my images but get the error "a unit for CCDData must be specified" as the headers don't specify BUNIT. Any suggested workarounds?

I was waiting for this post. Thank you!