Moon – Jupiter Conjunction

   Tuesday morning April 23rd the 18-day old waning Gibbous Moon will be in a close conjunction with Jupiter as the two are separated by about 1o. The two should make for an interesting view as they both will very easily fit within the field of view of 7×50 binoculars.

   
   
   

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The Moon and a Dwarf Planet

   Monday morning April 22nd, before the Sun rises, look toward the south-southwest for the 17-day old waning gibbous Moon. While the Moon is obviously easy to see at a -12.60 apparent magnitude, the nearby, (2-3o), dwarf planet Ceres with an apparent magnitude of 6.90 is outshined by the Moon and is not visible.
   As this graphic shows all of the naked-eye visible planets except Mars are arranged from west to east above the horizon. While not naked eye visible Neptune, with an apparent magnitude of 7.94, is also shown. This arrangement of planets then offers an opportunity to visualize the plane of the ecliptic, the Earth’s orbit extended onto the sky. The plane of the ecliptic is one of the primary frames of reference for our solar system, and one of the things the other 7 planets have in common is that their respective orbits are all within about 7o from the plane of the ecliptic. Even our Moon stays within about 6o from the ecliptic.
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Sun Not in Taurus

April 19th  According to the pseudoscience of astrology the Sun enters the constellation of Taurus the Bull on Saturday April 20th. When in fact the actual position of the Sun on the 19th is within the boundary of the constellation of Aries the Ram, as this graphic shows. Actually the Sun had just entered Aries the day before on April 19th.

   Read a little more about how astrology has the Sun incorrectly placed in a previous blog, and in another blog discussing the effects of precession.
   
   
   
   
   
   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Sun Enters Aries

April 19th   Friday April 19th the Sun in its apparent eastward motion along the ecliptic, moves out of the constellation Pisces the Fishes and into the constellation of Aries the Ram. This is the true or actual position of the Sun as opposed to the pseudoscience of astrology which usually has the astrological Sun one constellation ahead or east from the Astronomical Sun’s position.
   Read a little more about how astrology has the Sun incorrectly placed in a previous blog, and in another blog discussing the effects of precession.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Virgo, Spica, and the Moon

   Over the next several mornings, April 17th-19th, and before the Sun rises, watch for the Moon to move past the bright bluish-white star Spica in the constellation Virgo the Harvest Maiden. The Moon will be phasing from a 12-day old waxing gibbous Moon on the 17th to a full Moon on the 19th. A few days further on the Moon will be in its waning phases and passing by Jupiter and Saturn.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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An Inner Planet Get Together

   Tuesday morning April 16th before the Sun rises watch for the two inner planets Mercury and Venus to be rising together and separated by about 3-4o. Both planets will easily fit within the field of view of 7×50 binoculars.
   Compare the apparent magnitude of Venus, -3.93 with the 0.22 apparent magnitude of Mercury.

   This is the closest the two will come to each other but Mercury and Venus will be visible above the horizon for the rest of the month and into May. Both planets are moving eastward along their respective orbital paths. This animated graphic is set to 1-day intervals from April 16th to April 30th.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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Mars Gets Eyed by the Bull

   Monday evening April 15th the ‘Red Planet’ Mars will be near the open star cluster the Hyades – a v-shaped pattern of stars making up the face of Taurus the Bull. Mars will also be about 5o from the ‘eye’ of the Bull, the reddish star Aldebaran. Both the Hyades and Mars will easily fit within the field of view of 7×50 binoculars, and should prove to be an interesting sight. Compare the 1.50 apparent magnitude of Mars with the brighter 0.90 apparent magnitude for Aldebaran.

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to return to bobs-spaces.


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