Event Date: April 28th
Time: 9:00 PM
Brief
During the winter, I mentioned the season-sake "circle" asterism, which involves 6 constellations in our sky. They are all labeled in image 1 below, along with Venus and the Moon included. These two solar system neighbors fit in well, as the labeled stars collected, make up one of the brightest asterisms in the sky; all stars included are first magnitude stars, with Sirius the brightest as seen from Earth. Capella is also one of the brightest, while the others are all either between 0 and +1, or +1 and +2 in magnitude. As a consistent reminder, either Pollux or Castor can be included in the circle, yet often, not both as a result of their close separation.
Time: 9:00 PM
Brief
During the winter, I mentioned the season-sake "circle" asterism, which involves 6 constellations in our sky. They are all labeled in image 1 below, along with Venus and the Moon included. These two solar system neighbors fit in well, as the labeled stars collected, make up one of the brightest asterisms in the sky; all stars included are first magnitude stars, with Sirius the brightest as seen from Earth. Capella is also one of the brightest, while the others are all either between 0 and +1, or +1 and +2 in magnitude. As a consistent reminder, either Pollux or Castor can be included in the circle, yet often, not both as a result of their close separation.
Detailed
Image two shows the Pleaides star cluster, which I have also shown a few times since it has been high enough above the horizon. The cluster is seen in the first image as well, right of the 'Taurus' label, although magnified 20-fold in the second image to a 5º FOV. With powerful binoculars, this gives a very nice view. To see it even more spectacularly, use a low f-ratio telescope (3 or 4), which with some common eyepiece focal lengths, gives fields of 2 1/2 to 3º.
Image two shows the Pleaides star cluster, which I have also shown a few times since it has been high enough above the horizon. The cluster is seen in the first image as well, right of the 'Taurus' label, although magnified 20-fold in the second image to a 5º FOV. With powerful binoculars, this gives a very nice view. To see it even more spectacularly, use a low f-ratio telescope (3 or 4), which with some common eyepiece focal lengths, gives fields of 2 1/2 to 3º.
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| click on images to enlarge: courtesy of Starry Night Pro Plus, version 6.4.3, by Simulation Curriculum Corp. |
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