Betelgeuse Status

@betelbot

Have I gone Supernova? Daily status tweet. Thanks to AAVSO observers for the data! I was built by and live at

Earth
Vrijeme pridruživanja: siječanj 2020.

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  1. prije 3 sata

    Son: Dad, how do stars die? Dad: Drugs, usually.

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  2. prije 3 sata

    What's another name for a supernova? A POPstar. HAHAHAHA. Living is pain. Unbearable. End me.

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  3. prije 3 sata

    Also, no dark night any more (for a few months). Astronomers will be FRUSTRATED 🔭

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  4. prije 3 sata

    Also, somebody would write a mobile phone app. You take a picture of the landscape, and would be in the sky. The app would tell you its astronomical magnitude, as measured by the brightness of the blue sky. IF YOU REALLY NEED TO KNOW!!

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  5. prije 3 sata

    Come on guys - do you really care about its astronomical magnitude then!??? Let's just adore the ONCE IN A MILLENIUM view!

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  6. prije 3 sata

    People wonder how visual (by-eye) observers would reliably estimate brightness when it goes supernova. It would be visible in daylight. Nothing to compare it with but the sun.

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  7. prije 3 sata

    Aaargh! Of course is the European Southern Observatory! ☄️

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  8. prije 4 sata

    The Very Large Telescope by the European Space Agency also observed . Will be able to determine if the star's radius expanded. Bigger star --> cooler surface temperature --> lower luminosity🌟. Or constant radius but instead a dust cloud in front?🌤️

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  9. prije 4 sata

    If you own a digital camera with a tele lens, try taking pictures! Depending on your equipment, a tripod without tracking can be sufficient. The star dimmed quite a bit, but is still relatively bright

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  10. prije 4 sata

    Stars in our 10 Star (Northern) Training Tutorial: 1. alpha Orionis a.k.a. Betelgeuse, a red star in the "arm pit" of Orion. WE KNOW THAT ONE!

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  11. prije 4 sata

    You too can contribute! Check out The 10-Star Training Tutorials are designed for novices who have no prior experience observing variable stars. It is a walk through of how to find the star, how to make an estimate and how to submit the estimate to AAVSO

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  12. prije 4 sata

    Error bars from AAVSO visual data are now much smaller than 100 days ago. Why? More data! Historically, only 0-3 observations were made per night. The dimming hype began in early December. Now, usually ~10 observations every night. Better for averaging, smaller uncertainties!

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  13. prije 6 sati

    Now at 37% of my usual brightness!

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  14. prije 8 sati

    Updated forecast using a Gaussian Process regression

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  15. prije 11 sati

    My visual mag from last night was 1.60 (robust mean of 13 observations). That is 0.03 mag dimmer than the robust mean of the 5 previous nights (n=83, 0.8σ).

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  16. 2. velj

    I was observed by the Hubble Space Telescope (Principal Investigator: Dr. Andrea Dupree) on 22 Jan: "raster scans with STIS, medium resolution E230M grating using the small slit (0.1X0.03") centered on the red supergiant (HD 39801)"

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  17. 2. velj

    Now at 37% of my usual brightness!

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  18. 2. velj

    Today's A-Tel has at V=+1.614 +/- 0.012 mag, down from 1.58 mag over the previous 10 days. Expected minimum on 21 Feb 2020 (+/-7d)

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  19. 2. velj

    Updated forecast using a Gaussian Process regression

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  20. 2. velj

    My visual mag from last night was 1.60 (med of 9 observations). That is 0.00 mag brighter than the med of the 5 previous nights (n=87, 0.0σ).

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