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  • Re: Mars....has a comet-like tail

    From RichA@21:1/5 to RichA on Tue Oct 12 18:36:42 2021
    On Tuesday, 12 October 2021 at 21:20:34 UTC-4, RichA wrote:
    Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.

    Ack! Sorry, I put Mars and it's Mercury.

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  • From RichA@21:1/5 to All on Tue Oct 12 18:20:32 2021
    Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.

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  • From StarDust@21:1/5 to RichA on Wed Oct 13 03:09:59 2021
    On Tuesday, October 12, 2021 at 6:36:43 PM UTC-7, RichA wrote:
    On Tuesday, 12 October 2021 at 21:20:34 UTC-4, RichA wrote:
    Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.

    Ack! Sorry, I put Mars and it's Mercury.

    Maybe mercury is gassing out something?
    Farting?
    😎

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  • From Quadibloc@21:1/5 to RichA on Wed Oct 13 15:01:47 2021
    On Tuesday, October 12, 2021 at 7:36:43 PM UTC-6, RichA wrote:

    Ack! Sorry, I put Mars and it's Mercury.

    Ah. Okay. Mercury I could believe; after all, it's very close to the Sun,
    and thus very hot, so it could have unusual volatiles.

    John Savard

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  • From RichA@21:1/5 to Quadibloc on Thu Oct 14 16:58:30 2021
    On Wednesday, 13 October 2021 at 18:01:49 UTC-4, Quadibloc wrote:
    On Tuesday, October 12, 2021 at 7:36:43 PM UTC-6, RichA wrote:

    Ack! Sorry, I put Mars and it's Mercury.
    Ah. Okay. Mercury I could believe; after all, it's very close to the Sun,
    and thus very hot, so it could have unusual volatiles.

    John Savard

    It's got an atmosphere, a thin one as well.

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  • From Chris L Peterson@21:1/5 to All on Thu Oct 14 22:40:22 2021
    On Tue, 12 Oct 2021 18:20:32 -0700 (PDT), RichA <[email protected]>
    wrote:

    Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.

    I seem to recall the first amateur images of this 10 or 15 years ago.

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