Media Information

 
 
 
collection:
nasa new
mediatype:
image
collection:
nasa
collection:
nasanaturalhazards
title:
Total solar eclipse over Antarctica: Natural Hazards
description:
The moon cast a long shadow over Antarctica on November 23, 2003, in a total solar eclipse. The sun typically hangs low on the horizon during the southernmost continent's almost-summer months, so when the Moon moved between the Sun and the Earth, its shadow fell in a roughly 500-kilometer long oval like the long shadows of a early summer dawn. At the time this image was taken, the sun was at approximately 15 degrees above the horizon. The shadow's long circular shape is the same pattern a flashlight casts an the floor when held at a similar angle.

The moon's shadow has two parts: the fuzzy outer shadow, the penumbra, and the dark inner shadow, the umbra. Within the umbra, the sun is completely blocked. A person standing on the ground sees a glowing black disk in front of the sun -- the disk is the moon, and the glow is the sun's corona. In the penumbra, the ground observer sees the moon covering part of the sun. Both the penumbra and the umbra are visible in this true-color image.

The modis.gsfc.nasa.gov Moderate Resolution Imaging Spectroradiometer (MODIS) on the aqua.nasa.gov/ Aqua satellite captured this image of the eclipse between 23:15 and 23:20 UTC. The terra.nasa.gov/ Terra satellite captured a rapidfire.sci.gsfc.n asa.gov/gallery/?200 3327-1123/Antarctica .A2003327.2255 similar image of the eclipse. The eclipse started at 22:08 UTC, and the shadow passed from the surface of the earth a little over an hour later at 23:20 UTC. The sun's light was completely blocked at 22:49 for one minute and 55 seconds.

At the time this image was taken, the sun was just rising over Antarctica, tinting the mountains a delicate pink, even within the shadow of the eclipse. Beyond the dark upper left corner, the sun has not yet driven away night's darkness. The bluish tones of the snow reveal how Antarctica appears from space without atmospheric correction. The shadow covers Queen Maud Land, Antarctica, with its tip pointing towards Africa. The South Pole is just beyond the right corner of the image.

The moon is not the only thing throwing shadows across the landscape in this image. On the top left, the Pensacola Mountains make long horizontal shadows on the ice. Patches of low cloud along the left side of the umbra are also leaving a dark smudge on the surface.

This image is available in rapidfire.sci.gsfc.n asa.gov/gallery/?200 3327-1123/Antarctica 2.A2003327.2320 multiple resolutions .

Image courtesy Jacques Descloitres, rapidfire.sci.gsfc.n asa.gov MODIS Rapid Response Team at NASA GSFC
subject:
What -- Earth
subject:
What -- Sun
subject:
What -- Moon
subject:
Where -- Goddard Space Flight Center (GSFC)
subject:
What -- Terra
subject:
What -- Aqua
subject:
What -- Dawn
what:
Earth
what:
Sun
what:
Moon
what:
Terra
what:
Aqua
what:
Dawn
where:
Goddard Space Flight Center (GSFC)
identifier:
Eclipse2.AMO2003327
uploader:
gwilliam@archive.org
addeddate:
2011-07-24 02:24:23
publicdate:
2011-07-24 02:24:23
creator:
NASA -- NASA Image Of The Day
ImageUID:
file:/home/lunaadmin /Source_download/201 107/1/Eclipse2.AMO20 03327/Eclipse2.AMO20 03327.jpg
ImageUID:
file:/home/lunaadmin /Source_download/201 107/1/Eclipse2.AMO20 03327/Eclipse2.A2003 327_lrg.jpg
filename:
Eclipse2.A2003327_lr g.jpg
date:
2003-11-23
rights:
Public Domain
source:
year:
2003
language:
eng

Total solar eclipse over Antarctica: Natural Hazards