Monthly Night Sky information provided by Chris Vaughan (@Astrogeoguy) at Starry Night Education (@StarryNightEdu).

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  • Mercury at Greatest Eastern Elongation near the Beehive (after sunset)

    After sunset on Thursday evening, July 3, Mercury (orbit shown in red) will stretch to its widest separation of 25.9 degrees east of the sun, and its maximum visibility, for its current apparition. This appearance of the planet will be reasonably good for both Northern Hemisphere and Southern Hemisphere observers. The optimal viewing time at […]

  • Gibbous Moon Slides by Spica (evening)

    When the sky darkens after dusk on Thursday, July 3, Virgo’s brightest star Spica will appear just to the upper right of the waxing gibbous moon in the southwestern sky. Until they set after midnight, the duo will share the view in binoculars (orange circle). Observers viewing the pair later, or in more westerly time […]

  • Venus Passes Uranus (pre-dawn)

    The brilliant planet Venus will dominate the eastern predawn sky for most of this year while it slowly swings back toward the sun. On the mornings surrounding Friday, July 4, Venus will pass close enough to Uranus to allow early risers to use Venus to locate the far fainter planet in binoculars (orange circle). On […]

  • Friday Night Sights

    Join us (weather permitting) at our Observatory! See Friday Night Sights: Explore the Night Sky – RASC Hamilton for the latest updates on the upcoming date.

  • Sinus Iridum’s Golden Handle (evening)

    On Saturday night, July 5, the terminator on the waxing gibbous moon will fall just west of Sinus Iridum, the Bay of Rainbows. The circular 155 mile (249 km) diameter feature is a large impact crater that was flooded by the same basalts that filled the much larger Mare Imbrium to its east – forming […]