Observations

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Vitello – a strange crater on the moon

July 31, 2006

Vitello drawn by Harry Roberts If you have a small telescope or a friend with one that you can use, it is worth while examining the moon. Huge amount of details are visible and the features change in appearance as the lunar day progresses.

Weather clears for a great Festival

July 23, 2006

The front of the Sydney Observatory Sydney Observatory's annual Festival of the Stars was held this weekend on Friday (21 July) and Saturday (22 July). The weather forecast was gloomy and sure enough there was lots of cloud for the Friday evening.

How dark can we go?

July 18, 2006

The front of the Sydney Observatory This coming Friday and Saturday evenings (July 21 & 22) Sydney Observatory is holding its second annual Festival of the Stars. The Sydney Harbour Bridge floodlights will be turned off for the events and a number of City and North Sydney buildings will be turning off their exterior signage.

Double event at the Observatory

July 18, 2006

The front of the Sydney Observatory On Monday 7 August from 6:30 pm there will be a double event at Sydney Observatory. First there will be the opening of a spectacular photographic display. This is from the 2006 "David Malin" Awards that was held during the CWAS Astrofest in July.

Surge on Sun

July 13, 2006

Sun on 5 July 2006_SOHO Sunspots on the Sun indicate regions of strong activity and magnetic fields. The number of spots tends to vary with a cycle of 11-years called, not surprisingly, the sunspot cycle. In 2006 the Sun is at a minumum in the cycle and there are generally few spots visible.

See Venus, Jupiter and the crescent Moon this weekend

July 17, 2015

Stellarium.MoonVenusJupiter.20150718 This weekend, 18 & 19 July 2015, the crescent Moon, Venus and Jupiter make a nice grouping in the western sky in the evening twilight. The Moon may be first visible on Friday night as a thin crescent  below both Venus and Jupiter.