Full Moon

Full Moon
Full Moon taken 27Aug2007, 90mm f/12 APO and Canon 20Da

Full Moon will occur today at 05:53HST.

This full Moon will be a perigee full Moon, with the Moon appearing a bit larger and brighter. Today lunar perigee occurs within 7 hours of full, producing a full moon that is about 12% larger and 30% brighter than if full occurs while the Moon is at apogee.

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Shadow on Shadow

I had a plan for this eclipse.

Partially eclipsed Moon rising above the shadow of Mauna Kea
A partially eclipsed Moon rises just above the shadow of Mauna Kea on January 20th, 2019.

I needed a quiet day to work on some code in the Keck 2 dome control PLC. One problem, every time I load code the dome lights go out. Guys working in the dome tend to object to the lights going out randomly.

Answer? Go up on a weekend when there as only a couple guys on duty and not a lot of work going on. I can have the whole telescope and dome to myself most of the day.

There is also a total lunar eclipse.

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Full Moon

Full Moon
Full Moon taken 27Aug2007, 90mm f/12 APO and Canon 20Da

Full Moon will occur today at 19:16HST.

This evening look for the Moon rising in the east just as the Sun sets in the west. Across the Big Island this can often lead to moonbows as the low elevation moonlight interacts with fog and clouds.

This full moon will feature a total lunar eclipse. For the islands the eclipse will just be starting as the Moon rises with all of totality visible.

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