蒙特利尔清晨天空中的行星和月亮

2020 March 20

Morning, Planets, Moon and Montreal
Image Credit & Copyright: Arnaud Mariat

Explanation: Dawn’s early light came to Montreal, northern planet Earth, on March 18, the day before the vernal equinox. At the end of that nearly equal night the Moon stands above a dense constellation of urban lights in this serene city and skyscape. Of course the Moon’s waning crescent faces toward the rising Sun. Skygazers could easily spot bright Jupiter just above the Moon, close on the sky to a fainter Mars. Saturn, a telescopic favorite, is just a pinprick of light below and farther left of the closer conjunction of Moon, Jupiter and Mars. Near the ecliptic, even Mercury is rising along a line extended to the horizon from Jupiter and Saturn. The elusive inner planet is very close to the horizon though, and not quite visible in this morning’s sky.

Tomorrow’s picture: light-weekend

蒙特利尔清晨天空中的行星和月亮
影像提供与版权: Arnaud Mariat

说明: 在3月18日这个春分前一天清晨的曙光，照亮了北半球的蒙特利尔市。在这幅摄于白画和黑夜几乎等长日子的静谧城市与天空景观里，月亮悬在密布都市灯火的上方。想当然耳，渐亏月的蛾眉区直指东升的旭日。观星人不难认出贴在月亮上方的明亮木星，然而在这片天空中，木星与较暗火星的间距更小。此外，作为望远镜观星热门标的之土星，位在近合的月亮、木星与火星左方不远之处。而离黄道面不远的水星也在东升，它的位置大约在木星和土星的连线和左侧地平线相交之处。只不过这颗稍纵即近的行星，极接近地平线，在这天清晨的天空中见不到它的身影。（译注：因时差，北美洲的春分在3月19日）

明日的图片: light-weekend