About the data Terrestrial elevation data – downsampled SRTM30 Plus with filled oceans. The large 10,800 x 5,400 grayscale DEM is very detailed. For creating more legible terrain on Natural Earth III texture maps, use the smaller 8,640 x 4,320 DEM. The large 16,200 x 8,100 bump map derives from the 8,640 x 4,320 DEM. Land/water mask – from Natural Earth II. Water bodies derive from downsampled MOD
This magnificent 360-degree panoramic image, covering the entire southern and northern celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. This gorgeous starscape serves as the first of three extremely high-resolution images featured in the GigaGalaxy Zoom project, launched by ESO within the framework of the International Year of Astronomy 2009 (IYA2009). The plane
The color map, available as 24-bit RGB TIFFs of various sizes. The map is centered on 0° longitude. The color map was adapted from the Hapke Normalized WAC Mosaic, a composite built by the camera team from over 100,000 WAC (Wide Angle Camera) images. The readme file provides a technical summary of how the mosaic was constructed along with references to more detailed publications. A less formal int
The star map in celestial coordinates, at five different resolutions. The map is centered at 0h right ascension, and r.a. increases to the left. This set of star maps was created by plotting the position, brightness, and color of 1.7 billion stars from the Hipparcos-2, Tycho-2, and Gaia Data Release 2 star catalogs, with help from the Yale Bright Star Catalog, UCAC3, and the XHIP Hipparcos cross-r
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