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Thread: Unique opportunity: Occultation of Regulus Mar 19/20

  1. #1
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    Default Unique opportunity: Occultation of Regulus Mar 19/20



    A heads up for people in northwestern Quebec, southeastern Ontario (Kingston), central New York State, New York City, the far western corners of Massachussetts and Connecticut. March 19/20, the asteroid 163 Erigone will occult Regulus on a path through these areas. Its diameter is 72km, so that is the width of the occultation track. The occultation will last up to 14 seconds.

    If there are a bunch of observers, accurate GPS position and accurate timing information could help determine the exact shape and size of the asteroid.

    I know there are a bunch of members in those areas, so here's hoping you have clear skies that night.

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    I saw mention of this occultation somewhere in my reading. Fingers crossed that clouds and schedule might cooperate, this would be very interesting and rare event to capture.

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    I have this one scheduled as well but I just noticed that I'm not in the path to be able to see Regulus disappear.

    Regulus actually makes for a neat target area regardless. I find Leo I (and other dwarf galaxies) interesting. It is located right 'above' Regulus.

    Leo I (dwarf galaxy) - Wikipedia, the free encyclopedia

    I actually took a couple hours of 5 minute images of this area last night to capture some other asteroids. I'll post a link to the image later today.

    Dan
    Dan Crowson - O'Fallon MO

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    I don't live near the site, but strongly encourage those who do to engage the occultation. I've done two of them in the past six months, and they're really a "cool" thing to actually see and record.

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    I'm directly (almost centrally!) in the path and surely will look...provided skies are clear, which has been far more rare this winter than usual.

    Incidentally, can anyone here still recall Regulus being occulted by Venus way back in 1959? For U.S. East Coast observers the occultation took place quite early in the day. The Sun was well up, but Regulus and Venus were still situated quite low in the east (but well positioned for European observers). I was able to locate Venus without much difficulty, but couldn't detect Regulus with my 6" f/10 scope at the appropriate time. This was proably the rarest occultation of my lifetime and I cannot even recall ever reading about a planet occulting a 1st magnitude star, although three such stars have such potential for this over the course of centuries.

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    Good luck if you're in the 'path', let us know how it goes!
    Lea

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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    Here's the image from last night showing Regulus and the Leo I dwarf galaxy.

    Asteroid 783 Nora + 1098 Hakone - 24x300s - Luminance.jpg

    Dan
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    Default Re: Unique opportunity: Occultation of Regulus Mar 19/20

    I plan to record if weather permits. A bunch of guys from our Astnonomy Club are all going to meet at the observatory that night. /fingers-crossed

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