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Fail:Mars Viking 12a240.png

Fail asli ‎(999 × 512 piksel, saiz fail: 188 KB, jenis MIME: image/png)

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Ringkasan

Keterangan Viking 1 lander image of a martian sunset over Chryse Planitia. In this image the sun is 2 degrees below the local horizon. The banding in the sky is an artifact produced by the incremental brightness levels of the camera. This image was taken on the 30th martian day (sol) after touchdown, at 19:13 local time (10:40:31 on 20 August 1976 (UTC)). The camera is pointing towards the southwest.
Tarikh 2009-01-24; original photos were taken 1976-08-20.
Sumber Own work based on images in the NASA Viking image archive
Pengarang "Roel van der Hoorn (Van der Hoorn)"
Kebenaran
(Penggunaan semula fail ini)		 I used the original 12a240.blu, 12a240.grn and 12a240.red images from the NASA Viking image archive, converted them to .png, manually removed the noise, merged them into one image (almost matching true color; see here for the channel mixing process) and finally increased the brightness with 35. Except for the conversion, this was done in Adobe Photoshop CS2. The original file by NASA is in the public domain, and so is this new one.
Versi lain I created this image as a replacement for the image Viking sunset.jpg (see also here). This file was created by NASA, but the quality was not very high. Using the original pictures from the Lander archive resulted in a higher quality image.

Perlesenan

Public domain Van der Hoorn at Inggeris Wikipedia selaku pemegang hak cipta karya ini melepaskan karya ini ke dalam domain awam di seluruh dunia.
Di sesetengah negara, undang-undangnya mungkin tidak mengizinkan; jika begitu:
Van der Hoorn memberi sesiapa sahaja hak untuk menggunakan karya ini untuk apa jua tujuan, tanpa sebarang syarat, melainkan undang-undang menetapkan syarat-syarat sedemikian.

The image is based on an original image from NASA to which the following copyright statement is applicable:

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

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Tarikh/WaktuGambar kenitUkuranPenggunaKomen
semasa16:44, 24 Januari 2009Gambar kenit bagi versi pada 16:44, 24 Januari 2009999 × 512 (188 KB)Van der Hoorn== Summary == {{Information |Description = Viking 1 lander image of a martian sunset over Chryse Planitia. In this image the sun is 2 degrees below the local horizon. The banding in the sky is an artifact produced by the incremental brightness levels of t

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