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Author: Emily Bick

Lunar Eclipse, 21 January 2019
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Total Eclipse of the Flower Moon, Early Monday 16 May

11 May 202212 May 2022 Emily Bick 0 Comments

In the early hours of next Monday morning, 2022 May 16, there will be a total eclipse of the Moon.

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Figure 1. Abell 2163, a distant cluster of galaxies, all receding from us. (Source Wikimedia Commons, originator NASA/ESA/Hubble)
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The Expanding Universe: Doppler Shift To Dark Energy

10 May 202212 May 2022 Emily Bick 0 Comments

Introduction A previous tutorial discussed how the Doppler Effect can be used to determine the velocity of an astronomical object

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Artist impression of the James Webb Space Telescope. Courtesy of NASA
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Observer’s Challenge – Observe the James Webb Space Telescope

18 April 202218 April 2022 Emily Bick 0 Comments

As of mid-April, commissioning of the James Webb Space Telescope continues without significant hiccough. It is now ‘at’ the place

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A source of light waves moving to the right, relative to observers, with velocity 0.7c. The frequency is higher for observers on the right, and lower for observers on the left.
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The Doppler Effect in Astronomy

18 April 202211 May 2022 Emily Bick 0 Comments

Introduction How is it we know how fast stars and galaxies are moving towards or away from us? How can

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Tutorial: Recording your observations

6 February 202215 March 2022 Emily Bick 0 Comments

It is a tradition for members of the BAA at the end of December to exchange summaries of their year

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Observer’s Challenge: The Moon’s encounter with Ceres

6 February 20223 March 2022 Emily Bick 0 Comments

On the 9th February just after 11:00UT the Moon occults (passes in front of) Dwarf Planet 1 Ceres which is

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Newtonians are cool

13 January 202212 April 2022 Emily Bick 0 Comments

How to avoid image distortions caused by heat

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Unusual Asteroid appears with a comet-like tail

29 July 20213 March 2022 Emily Bick 0 Comments

On July 9, Professor Alan Fitzsimmons of the ATLAS survey telescope team in Hawaii reported observations of an unusual “active”

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