[TriLUG] OT: Total lunar eclipse sunday night - monday morning 20-21 Jan (this weekend)

[Scott Lambdin via TriLUG]

Thanks!

On Thu, Jan 17, 2019 at 11:54 AM Joseph Mack NA3T via TriLUG <
trilug at trilug.org> wrote:

> I hope this isn't too OT. I expect most people who're interested in this
> sort of
> thing already know about it.
>
> There hasn't been a total lunar eclipse here since (I think) 2017 and
> there
> won't be one for another couple of years.
>
> The eclipse is for 1hr 4mins about midnight sun-mon this weekend. Forecast
>
>
> https://forecast.weather.gov/MapClick.php?w0=t&w1=td&w2=wc&w3=sfcwind&w3u=1&w4=sky&w5=pop&w6=rh&w7=rain&w8=thunder&w9=snow&w10=fzg&w11=sleet&w13u=0&w16u=1&w17u=1&AheadHour=0&FcstType=graphical&textField1=35.994&textField2=-78.8986&site=all&unit=1&dd=&bw=&AheadDay.x=18&AheadDay.y=12https://forecast.weather.gov/MapClick.php?w0=t&w1=td&w2=wc&w3=sfcwind&w3u=1&w4=sky&w5=pop&w6=rh&w7=rain&w8=thunder&w9=snow&w10=fzg&w11=sleet&w13u=0&w16u=1&w17u=1&AheadHour=0&FcstType=graphical&textField1=35.994&textField2=-78.8986&site=all&unit=1&dd=&bw=&AheadDay.x=18&AheadDay.y=12
>
> is for 50% cloud cover during the eclipse. You should get a pretty good
> idea
> of what a total lunar eclipse looks like between the clouds.
>
> for those of us working, monday is a holiday (MLK day), so you don't have
> to get
> up the next morning and the kids don't have to go to school.
>
> The total eclipse is only thing interesting visually. The moon dims when
> it
> enters the penumbra, but the eye isn't sensitive enough to detect the
> dimming.
>
> Totality is about 1:04 hrs.
>
> The eclipse is chordal (ie not through the diameter of earth's shadow), so
> one
> side of the moon will be relatively bright and the dark side won't be
> black, but
> red.
>
> the chordal path is shown in an animation on
>
> https://en.wikipedia.org/wiki/January_2019_lunar_eclipse
>
> times are from
>
> https://earthsky.org/?p=295245
>
> Eastern Time
> Partial umbral eclipse begins: 10:34 p.m. (January 20, 2019)
> Total lunar eclipse begins: 11:41 p.m. (January 20, 2019)
> Greatest eclipse: 12:12 a.m. (January 21, 2019)
> Total lunar eclipse ends: 12:43 a.m. (January 21, 2019)
> Partial umbral eclipse ends: 1:51 a.m. (January 21, 2019)
>
> For an explanation of why the moon is red, rather than black, during a
> total
> eclipse, see
>
>
> https://www.vox.com/science-and-health/2019/1/16/18167039/lunar-eclipse-2019-blood-moon-
> supermoon
>
> where the moon is seeing sunsets and sunrises on the earth
>
> Joe
>
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant
> map generator at http://www.wm7d.net/azproj.shtml
> Homepage http://www.austintek.com/ It's GNU/Linux!
> --
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