File:Moon PIA00303.jpg

摘要

Original Caption Released with Image

About 50,000 Clementine images were processed to produce the four orthographic views of the Moon. Images PIA00302, PIA00303, PIA00304, and PIA00305 show albedo variations (normalized brightness or reflectivity) of the surface at a wavelength of 750 nm (just longward of visible red). The image projection is centered at 0 degree latitude and 90 degrees longitude. The dark albedo features Mare Smythii (image center) and Mare Marginis (above Smythii) are just visible from Earth on the extreme eastern edge of the lunar nearside. Maria Crisium (directly west of Marginis) and Mare Fecunditatis (southwest of Crisium) are familiar nearside features as seen from Earth. Maria regions are believed to be large basins formed by impacts from cosmic projectiles later filled by basaltic lava flows from volcanic eruptions. Basaltic lava flows on the basin floors give maria their dark albedo appearance.

• 
  Near side
• 
  90 degrees East
• 
  Far side
• 
  90 degrees West

See also

• PIA00002 — North Pole Region
• PIA00001 — South Pole Region

Source

• http://photojournal.jpl.nasa.gov/catalog/PIA00303
• http://photojournal.jpl.nasa.gov/jpeg/PIA00303.jpg

From Wikipedia.

授權條款

	本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策）
	警告: 使用NASA的logo，徽標等受到美國法律14 CFR 1221的限制。 NASA網站還提供大量來自蘇聯/俄羅斯航天機構，以及其他非美國的太空機構的圖像。這些圖像不一定屬於公有領域。 根據哈勃空間望遠鏡的數據制作的素材，如果不是明確聲明由STScI提供，則可能受到版權保護。[1] 參看{{PD-Hubble}}和{{Cc-Hubble}}或{{Spacetelescope.org}}。 SOHO (ESA & NASA)聯合項目的探測器所創作的所有內容受到著作權保護，並且進行非教育性質的商業應用需要授權。[2] 每日一天文圖（APOD）網站的特色圖片可能受到著作權保護。[3]