本帖最后由 sagalliant 于 2009-1-2 21:28 编辑
来源：APOD
Did you see it? The last conjunction of Moon and bright planets in 2008 featured a young crescent Moon and brilliant Venus in the west after sunset on December 31st. Seen here in dark, clear, mountain air from Mönichkirchen, Austria, are the two celestial beacons that dominate planet Earth's night sky. That pair was hard to miss, but skygazers watching lower along the western horizon in early twilight might also have glimpsed a pairing of Jupiter and Mercury as they both wandered closer to the Sun in the sky at year's end. Still, while this single, 5 second long exposure seriously overexposes the Moon's sunlit crescent, it does capture another planet not visible to the unaided eye. The tiny pinprick of light just above the photographer's head in the picture is the distant planet Neptune.
译文（自己翻译）
你看见了吗？12月31日日落后的西方天空上演2008年最后一场亮行星合月大戏，这次主角是新生的月牙和明亮的金星。从奥地利Mönichkirchen的黑暗、澄澈的山地空气里看去，这两个天界灯塔俨然是地球夜空的主宰。这对夜空组合肯定错不过，但是观星者如果在早些时候的暮光里注视西方地平线附近，兴许会瞥见木星和水星这对组合，年终岁末的天空里它们正朝太阳蹒跚而行。虽然这张单张曝光5秒钟的图像已经使月亮那被太阳照亮的月牙形脸庞严重过度曝光，但是的确捕捉到了一颗裸眼无法看见的行星。图中摄影师头顶那个微小的针状光点就是遥远的海王星。
附图为模拟的天空图景，地点奥地利维也纳，时间（当地天文昏影终）18时04分 |
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如果我有钱了 我也去阿尔卑斯山去 环境真好
