Original Post from Astronomy Picture of the Day (APoD):
Solar System Portrait
Image Credit: Voyager Project, +NASA
http://apod.nasa.gov/apod/ap130214.html
On another Valentine's Day (February 14, 1990), cruising four billion miles from the Sun, the Voyager 1 spacecraft looked back to make this first ever family portrait of our Solar System. The complete portrait is a 60 frame mosaic made from a vantage point 32 degrees above the ecliptic plane. In it, Voyager's wide angle camera frames sweep through the inner Solar System at the left, linking up with gas giant Neptune, at the time the Solar System's outermost planet, at the far right. Positions for Venus, Earth, Jupiter, Saturn, Uranus, and Neptune are indicated by letters, while the Sun is the bright spot near the center of the circle of frames. The inset frames for each of the planets are from Voyager's narrow field camera. Unseen in the portrait are Mercury, too close to the Sun to be detected, and Mars, unfortunately hidden by sunlight scattered in the camera's optical system. Small, faint Pluto's position was not covered.
via Public RSS-Feed of Kazuo Ito (togusa). Created with the PIXELMECHANICS 'GPlusRSS-Webtool' at http://gplusrss.com https://plus.google.com/108013264503511141086/posts/TnXL74ZKBF1
0 件のコメント:
コメントを投稿