蹙颦什么意思:This Week's Sky at a Glance - SkyandTelescope.com

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This Week's Sky at a Glance

Some daily events in the changing sky for May 6 – 14

by Alan M. MacRobert

Friday, May 6

  • The crescent Moon shines in thewest after dark. The brightest star far to the Moon's upper right isCapella. Less far to the Moon's lower left, look for Betelgeuse sinkingaway for the season.

    Thedawn planet configuration before Sunday sunrise. (The visibility of thefaint objects in bright twilight is exaggerated.) To view this scenefor any day in May, watch our animation and pause it on the day of your choice. (The scene is oriented for a skywatcher near 40° north latitude.)Sky & Telescope diagram

  • From tomorrow morning through the 15th, binoculars showMercury less than 1½° lower right of Venus, with Jupiter fitting intothe same 5° field of view. Track their changes each clear morning!

    Saturday, May 7

  • The Moon shines in Geminithis evening below Pollux and Castor. Left of the Moon is Procyon. Rightof the Moon is bright Capella, with Menkalinen to its upper left. Thesefive stars form an enormous arch over the lunar crescent at dusk. Thisis an archetypal springtime scene, repeated every April and May when theMoon is a waxing crescent.
  • A small telescope willshow Titan, Saturn's largest moon, about four ring-lengths to Saturn'swest tonight. A 6-inch telescope begins to show the orange color of itssmoggy atmosphere.

    Sunday, May 8

  • The Moon this evening forms a big, curving arc with Procyon to its lower left and Pollux and Castor to its upper right.
  • The 9th-magnitude asteroid 10 Hygiea, currently near opposition, ispassing through southern Libra this month. Hygiea is the fourth-largestasteroid; it appears as dim as it does because its surface is quiteblack. See the finder chart and article in the May Sky & Telescope, page 56.

    Monday, May 9

  • On spring evenings the BigDipper turns over as if to dump spring rains on the world, or so itappears to Northern Hemisphere skywatchers. Look for the Dipper veryhigh in the northeast as the stars come out.

    Tuesday, May 10

  • First-quarter Moon (exactat 4:33 p.m. Eastern Daylight Time). Look above the Moon this eveningfor Regulus and the Sickle of Leo.
  • Before sunriseWednesday morning, Jupiter and Mercury are, respectively, just ½° aboveand 1½° below brighter Venus. This is also when Jupiter and Venus — thetwo brightest planets — will appear closest together.

    Wednesday, May 11

  • Regulus and the Sickle of Leo are to the Moon's upper right after dark.

    The waxing gibbous Moon passing under Saturn and Spica.Sky & Telescope diagramThursday, May 12

  • The three brightest stars inthe spring evening sky are Arcturus, now high in the southeast, Vegalower in the northeast, and Capella in the northwest. All are zeromagnitude. Vega and Capella are at exactly the same height sometimearound 10 p.m. daylight saving time tonight, depending on your location.How accurately can you time this event for where you live?

    Friday, May 13

  • The Moon is far to the lower right of Saturn this evening, as shown here.

    Saturday, May 14

  • Now the Moon is now lower right of Spica, as shown here.



    • This Week's Sky at a Glance - SkyandTelescope.com This Week's Sky at a Glance for December 31 – January 8 This Week's Sky at a Glance for January 7 – 15. This Week's Sky at a Glance for January 14 – 22 This Week's Sky at a Glance for January 21 – 29 This Week's Sky at a Glance for January 28 – February 5 This Week's Sky at a Glance for February 4 – 12 This Week's Sky at a Glance for February 18 – 26. This Week's Sky at a Glance February 25 – March 5. This Week's Sky at a Glance for March 4 – 12 This Week's Sky at a Glance for March 18 – 26 This Week's Sky at a Glance for March 25 – April 2. This Week's Sky at a Glance April 1 – 9 This Week's Sky at a Glance for April 8 – 16 This Week's Sky at a Glance for April 15 – 23 This Week's Sky at a Glance for April 22 –30 This Week's Sky at a Glance for May 20 – 28 This Week's Sky at a Glance for May 27 – June 4. This Week's Sky at a Glance for June 3 – 6 This Week's Sky at a Glance for June 17 – 25 This Week's Sky at a Glance for June 24 - July 2 This Week's Sky at a Glance for July 29 – August 6 This Week's Sky at a Glance for September 8 – 17 This Week's Sky at a Glance for September 16 – 24