the-star-stuff:

‘Supermoon’ Alert: Biggest Full Moon of 2012 Occurs This Week
The moon will officially become full Saturday (May 5) at 11:35 p.m. EDT. And because this month’s full moon coincides with the moon’s perigee — its closest approach to Earth — it will also be the year’s biggest.
The moon will swing in 221,802 miles (356,955 kilometers) from our planet, offering skywatchers a spectacular view of an extra-big, extra-bright moon, nicknamed a supermoon.
And not only does the moon’s perigee coincide with full moon this month, but this perigee will be the nearest to Earth of any this year, as the distance of the moon’s close approach varies by about 3 percent, according to meteorologist Joe Rao, SPACE.com’s skywatching columnist. This happens because the moon’s orbit is not perfectly circular.
CREDIT: Tim McCord

the-star-stuff:

‘Supermoon’ Alert: Biggest Full Moon of 2012 Occurs This Week

The moon will officially become full Saturday (May 5) at 11:35 p.m. EDT. And because this month’s full moon coincides with the moon’s perigee — its closest approach to Earth — it will also be the year’s biggest.

The moon will swing in 221,802 miles (356,955 kilometers) from our planet, offering skywatchers a spectacular view of an extra-big, extra-bright moon, nicknamed a supermoon.

And not only does the moon’s perigee coincide with full moon this month, but this perigee will be the nearest to Earth of any this year, as the distance of the moon’s close approach varies by about 3 percent, according to meteorologist Joe Rao, SPACE.com’s skywatching columnist. This happens because the moon’s orbit is not perfectly circular.

CREDIT: Tim McCord

(via deathmk2)

(Source: disappearrhere, via viva-la-revolucion)

7,453 notes

frenchhistory:


Quart de cercle de Jonathan Sisson. Laiton, 1742. Classé monument historique. Dépôt de l’Université Claude-Bernard Lyon 1 (Observatoire astronomique de Saint-Genis-Laval). Employé par Jérôme de Lalande pour la première déterminiation précise de la distance Terre-Lune en 1751. Exposé au Musée gallo-romain de Fourvière, Lyon 
Quarter of a circle used by Jérôme de Lalande to measure the distance between the earth and the moon in 1751.
@credits

Joseph Jérôme Lefrançois de Lalande (11 July 1732 – 4 April 1807) was a French astronomer and writer.

frenchhistory:

Quart de cercle de Jonathan Sisson. Laiton, 1742. Classé monument historique. Dépôt de l’Université Claude-Bernard Lyon 1 (Observatoire astronomique de Saint-Genis-Laval). Employé par Jérôme de Lalande pour la première déterminiation précise de la distance Terre-Lune en 1751. Exposé au Musée gallo-romain de Fourvière, Lyon

Quarter of a circle used by Jérôme de Lalande to measure the distance between the earth and the moon in 1751.

@credits

Joseph Jérôme Lefrançois de Lalande (11 July 1732 – 4 April 1807) was a French astronomer and writer.


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