Venus now sits due south of Spica within the night sky. Test them out as they shine for a short while after sundown.
Venus passes due south of Spica on September 2. Examine the view after sundown to that from a number of days in the past. Credit score: Stellarium
On the lookout for a sky occasion this week? Take a look at our full Sky This Week column.
September 1: Visit globular cluster M30
Venus passes 1.7° due south of Spica at 11 P.M. EDT. Though the pair has set for many by then (round 9 P.M. native daylight time), no matter your location they’re seen within the west shortly after sundown. Particularly in the event you caught them a number of days in the past, examine their positions from then to now.
About an hour after sundown, the pair is roughly 5° above the horizon. Shining brightly, they need to dominate the darkening sky. Brighter Venus now lies to the decrease left of Spica; to their decrease proper is Third-magnitude Porrima, a stunning double star in central Virgo. To their far higher proper is Arcturus, the luminary of Boötes the Herdsman.
Venus’ obvious dimension has now grown barely to 31”, whereas its section has shrunk a bit to 37%. With the planet so near the star within the sky, it’s best to be capable of seize each simply in binoculars or a telescope’s discipline of view. They will even make a stunning centerpiece for a nightscape picture — and the intense factors of sunshine ought to be simple to seize even with a cellphone.
Dawn: 6:29 A.M.
Sundown: 7:30 P.M.
Moonrise: 10:08 P.M.
Moonset: 12:35 P.M.
Moon Part: Waning gibbous (64%)
*Occasions for dawn, sundown, moonrise, and moonset are given in native time from 40° N 90° W. The Moon’s illumination is given at 10 P.M. native time from the identical location.
The Moon passes 5° north of Uranus at 7 P.M. EDT on September 3. Nonetheless, you’ll need to try the pair within the early-morning sky on Thursday, now situated in Taurus the Bull.
Rising about an hour earlier than midnight, Uranus is effectively above the jap horizon by about 3 A.M. native daylight time. Early on September 3, the waning Moon is approaching the Pleiades star cluster (M45) in northwestern Taurus. Beginning round 5 A.M. CDT, our satellite tv for pc will skim the northern areas of the Pleiades, taking about 2 hours to cross. From some areas, it’ll occult Sixth-magnitude 18 Tauri — the observability and timing will rely closely in your location, and is simply seen in darkness for the western U.S. From southern California, the star disappears behind the intense main lunar limb simply earlier than 3:45 A.M. PDT and reappears simply over an hour later. The reappearance from behind the darker trailing limb can be simpler to catch.
No matter whether or not you possibly can catch the occultation, Uranus is seen throughout the U.S. this morning. About 6.8° southeast of the Pleiades, the magnitude 5.7 planet is about 4° northwest of 4th-magnitude Epsilon (ε) Tau. When you draw a line from the Pleiades all the way down to this star, you’ll discover the ice big about two-thirds of the best way alongside it (farther from the Pleiades and nearer to Epsilon Tau). Particularly with the Moon close by, you’ll probably want binoculars or a telescope to identify the small, grey disk of Uranus, which spans simply 4” on the sky.
Alison Klesman is senior editor of Astronomy journal. She holds a Ph.D. in astronomy and has studied a wide range of subjects, from minor planets to supermassive black holes.
