Here again, Southern Hemisphere observers will have it easier in Sydney Saturn will be about 20 degrees high by 6 a.m. Saturn will form a rough triangle with Venus and Mars, but it will still be a challenge to see it as it will be low to the horizon. local time and by sunrise is 14 degrees high in the southeast. Saturn is a bit easier it rises in New York at about 5:40 a.m. on March 18, so it's really a daytime object. Jupiter is effectively invisible in New York, it rises at 6:49 a.m. local time, about 33 degrees high in the east, with Mars higher and to the right of Venus. On the same date Sydneysiders will see the two planets much higher by 6:00 a.m. one will see Mars and Venus paired, with Mars below Venus above and to the left of Mars.
Looking southeast from New York City at about 6:00 a.m. in New York on March 18 and reaching an altitude of 17 degrees by sunrise at 7:02 a.m. Mars is also visible in the predawn sky, rising at 5:08 a.m. Southern Hemisphere observers will see the planet rise much higher in Sydney, for example, Mercury is 9 degrees above the eastern horizon by 6:30 a.m. From New York (and other North American locales) the planet will only be 3 degrees above the horizon at sunrise (opens in new tab). Mercury will also be a morning star, though it is much closer to the sun and thus much harder to observe. (opens in new tab), so by a half-hour before sunrise the planet is 16 degrees high, and in Honolulu where the sun comes up at 6:37 a.m., the planet reaches 26 degrees by 6:00 a.m. (opens in new tab) local time and the sun rises at 6:29 a.m. In Mobile, Alabama, Venus rises at 4:37 a.m. Skywatchers in more southern latitudes will have an easier time of it as one moves south, the angle the path the planets take against the background stars is steeper relative to the horizon. For observers in mid-northern latitudes, the planet will get about 15 degrees above the southeastern horizon by 6:30 a.m. Venus will be at magnitude -4.4, making it the brightest object in the sky after the moon. in New York (opens in new tab), while the sun comes up at 7:02 a.m. As the separation is in the westward direction, it means Venus will rise well before the sun does. The full moon happens two days before Venus reaches its greatest western elongation, meaning its largest apparent separation from the sun.
If one waits a few days after the full moon or observes a few days before, shadows bring out more detail. That said, moon filters are available that can make some features stand out. One issue is the lack of shadows we are seeing the lunar surface at noontime on the moon, so the sun (from the perspective of a person standing on the moon) is directly overhead.
on March 18.įull moons are an easy target for binoculars or small telescopes, but they can be almost disappointing because the moon is so bright the surface loses contrast. As one moves further south its elevation will start to drop, though it will be towards the north - so in Sydney, Australia, which is at approximately 33 degrees south, the moon will be about 46 degrees high when it crosses the meridian at 12:37 a.m. The moon's altitude will reach a maximum for observers at about 5 degrees latitude, which corresponds to cities such as Bogota, Cayenne, French Guiana, or Abidjan. and the altitude will be 71 degrees (opens in new tab).Īltitude is largely dependent on latitude the lower one's latitude the higher the moon will appear in the sky. local time (opens in new tab) and will be at 46 degrees, in San Francisco it is at 12:14 a.m. March 18 and reaches 53 degrees (opens in new tab), in Seattle, it will do so at 1:26 a.m.
In Chicago, for example, the moon crosses the meridian at 1:03 a.m. In other cities, such as Chicago, Seattle, or San Francisco its elevation will be similar there will also be small differences in the local time it reaches that elevation. At that point, it hits its maximum elevation, 54 degrees. local time in New York (opens in new tab) on March 18 the just-before-full moon will cross the meridian, meaning it reaches the highest point in the sky, due south for Northern Hemisphere observers. The moon will be in the constellation Virgo.
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