RIP Philo

Super Moon

Anybody seen it?

I saw it in the dawn light around 07:50 UDT in the UK today.

It did look bigger than normal, but it's hard to tell when it's near the horizon, those moons always look bigger.
Permalink Patrick Moore 
December 4th, 2017 6:10am
14% wider

30% brighter
Permalink WikiBot 
December 4th, 2017 6:38am
To put this in perspective.

The apparent radius of the Moon varies ±7.5% during a month.

The luminosity (~surface) varies ±15% (using same phase but different distance)

Traditionally the luminosity of stars is indicated by its magnitude (larger magnitude is lesser brightness), and the visible (naked eye) stars span a range of 7 magnitudes. One magnitude is a factor 2.51 luminosity (+151% or -60%)

Sun is -27 magnitude
Full Moon is -13 magnitude
Brightest star Sirius is -1.5 magnitude
Stars still visible in an urban environment is +2 magnitude
Stars visible in perfect conditions (high mountain, no moon, no artificial light is +6 magnitude

Super Moon is 0.3 magnitude different from average Full Moon.
Permalink Lotti Fuehrscheim 
December 4th, 2017 7:01am
Meh. Super moon indeed.*n
Permalink Legion 
December 4th, 2017 8:48am
I prefer Sailor Moon.
Permalink Bibimbap 
December 4th, 2017 10:29am

...but only a fully legal/mature one obviously.
Permalink Zaq 
December 4th, 2017 10:32am
^ Looks like muppet.
Permalink T 
December 4th, 2017 10:57am
Was that the super? I thought it looked larger-than-normal the other day
Permalink Ruseman 
December 4th, 2017 11:28am

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