![]() ![]() At that time it will be located in the lower part of the northeastern sky. EDT or 22:56 GMT, Algol will be at its minimum brightness. But while fully dimmed, Algol's brightness of magnitude 3.4 is almost identical to Rho Persei (or Gorgonea Tertia or ρ Per), the star sitting just two finger widths to Algol's lower right (or 2.25 degrees to the celestial south). Also designated Beta Persei, it is among the most accessible variable stars for skywatchers.ĭuring a ten-hour period that repeats like clockwork every two days, 20 hours, and 49 minutes, Algol dims noticeably and re-brightens by about a third when a fainter companion star with an orbit nearly edge-on to Earth crosses in front of its much brighter primary, reducing the total light output we perceive.Īlgol normally shines at magnitude 2.1, similar to the nearby star Almach (aka Gamma Andromedae). The star Algol in the constellation of Perseus represents the glowing eye of Medusa from Greek mythology. (Image credit: Chris Vaughan/Starry Night) ![]() Also designated Beta Persei, it is among the most accessible variable stars for skywatchers. Retrograde loops occur when Earth, on a faster orbit closer to the sun, passes more distant solar system objects "on the inside track", making them appear to move backward across the stars for a period of time. Search midway between the stars Tejat Posterior and Alhena, both of which are visible with your unaided eyes or binoculars.įrom now until early February the asteroid will travel to the upper right (or celestial west) of those stars, toward Orion's upraised club. Tonight magnitude 6.7 Vesta will be relatively easy to find in binoculars (orange circle) and backyard telescopes in the eastern sky between the feet of the twins. 2, the eastward prograde motion of the large, main belt asteroid Vesta through the background stars of Gemini (red path) will slow to a stop. While a long lens (300 mm or greater) is best when shooting a long distance from a foreground object, a 70-200 mm lens is all that is needed for many classic D.C.It’s a rare combination, but it’s possible when shooting a distant thunderstorm surrounded by clear sky. I love photos that combine a view of the moon with a lightning flash.It is not as important to have the moon sharp because when the moon is near the horizon, it often appears distorted due to the atmosphere. It’s important that your foreground subject is sharp. ![]() Thus, a fast shutter speed, 1/20 second or faster, is often necessary for sharp moon photos with wind. And the blur is amplified when the camera is zoomed in from a long distance. Windy conditions can produce blurry photos because it shakes the tripod.The closer the moon is to the horizon, the more variations of color you will see and photograph.You can get the information by using PhotoPills or Photo Ephermeris (TPE). For perfect alignment in photos, you need to measure the elevation angles of how the moon rises, sets and its phase.This makes the moon look bigger and more interesting in comparison to the foreground. I like to capture moon shots from a distance with a long lens, ideally 400 mm or greater.And when possible, position yourself far away from the foreground subject to make the moon appear larger. ![]() Capitol, Washington Monument, Lincoln Memorial, Jefferson Memorial, etc.
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