July 14 – Star Clusters

m13

M13 in the constellation Hercules

Evening Highlights:
  • M13 – First discovered by Edmond Halley (of Halley’s Comet fame) in 1714, and one of the oldest and most densely populated globular clusters with nearly one million stars.
  • M15 – 32000 light years distant, may have a 4000 solar mass black hole at its core.
  • M3 – First discovered by Charles Messier in May 1764.  Thought to contain over 500,000 stars, and is 190 light years across.
  • M80 – Several hundred thousand stars, 32000 light years distant, and one of the densest clusters.
  • Three planets are visible in the sky tonight- Mercury, Jupiter and Saturn (Mercury sets very early, shortly after dusk).
  • One iridium flare will be visible.
  • Unlike most deep sky objects, all of the globular clusters listed above are visible through both telescopes and  binoculars.  Please feel free to bring a personal pair of binoculars to tonight’s workshop.
  • HVO opens at 7:30PM, a video on star clusters will be shown at 8:15 and observing will begin by 9PM.  Bring a chair!

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July 20 – Star Clusters

m13

M13 in the constellation Hercules

Evening Highlights:
  • M13 – First discovered by Edmond Halley (of Halley’s Comet fame) in 1714, and one of the oldest and most densely populated globular clusters with nearly one million stars.
  • M15 – 32000 light years distant, may have a 4000 solar mass black hole at its core.
  • M3 – First discovered by Charles Messier in May 1764.  Thought to contain over 500,000 stars, and is 190 light years across.
  • M80 – Several hundred thousand stars, 32000 light years distant, and one of the densest clusters.
  • Three planets are visible in the sky tonight- Mercury, Jupiter and Saturn (Mercury sets very early, shortly after dusk).
  • Unlike most deep sky objects, all of the globular clusters listed above are visible through both telescopes and  binoculars.  Please feel free to bring a personal pair of binoculars to tonight’s workshop.
  • If you arrive by car, please park by 8:10 PM.  Bring a chair if you can.  Our presentation will start about 8:30, and observing at 9:15.

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