Monthly Night Sky information provided by Chris Vaughan (@Astrogeoguy) at Starry Night Education (@StarryNightEdu).
The lower part of the southwestern sky on early April evenings is dominated by the three bright stars of the Winter Triangle. The prominent asterism, which is visible even while the bright, waxing gibbous moon is shining nearby this weekend, is anchored on the bottom by the magnitude -1.45 star Sirius or Alpha Canis Majoris, […]
Three prominent craters break up the expanse of Oceanus Procellarum, the widespread dark region on the moon’s left-hand side. Large Copernicus is the easternmost of the craters. Its extensive, ragged ray system intermingles with that of the smaller crater Kepler to its southwest. The small, but very bright crater Aristarchus positioned northwest of them will […]
During the early part of April, the planets Venus, Mercury, Neptune, and Saturn will all be gathered above the eastern horizon before sunrise. Neptune is far too faint to compete against the morning twilight, but the other three planets will be visible, especially from tropical latitudes where the ecliptic (green line) will be closer to […]
The moon will officially reach its full phase on Saturday, April 12 at 8:22 p.m. EDT or 5:22 p.m. PDT, which converts to 00:22 GMT on Sunday. Around that time, the full moon will also pass in front of the bright star Spica for observers within a zone from Panama southeast across northern South America, […]
When the bright, waning gibbous moon clears the trees to the southeast in late evening on Tuesday, April 15, it will be shining close to the line of medium-bright stars that form the claws of Scorpius, the Scorpion. From upper left to lower right, their names are Graffias (or Beta Scorpii), Dschubba (or Delta Scorpii), […]