Venus dances with Neptune, the magnitude scale explained, a new faint comet and let's look at a bright comet.
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“In 1922 the IAU named 88 constellations; this must have been number 89.”-Don Machholz Podcast-104-Map-1-Evening-SkyDownload Podcast-104-Map-2-Morning-SkyDownload
“This is how the Massive Marathon was invented.”-Don Machholz Podcast-109-Map-1-Evening-SkyDownload Podcast-109-Map-2-Morning-SkyDownload