Latest Placeblogs from Sydney

posted on
April 19th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: dog on the Sun

On the edge of the Sun there are often prominences, which are hot ionised gases moving in lo ...
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posted on
April 18th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: Virgo the Maiden

In the early evening this zodiac constellation is visible low down in the eastern sky. T ...
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posted on
April 17th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: around the galaxy

The Earth goes around the Sun once a year. The Sun itself is moving ...
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posted on
April 16th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: Simon-Garfunkel approaches

91287 Simon-Garfunkel is a small space rock that circles the Sun just outside t ...
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posted on
April 16th, 2013
from
Sydney Observatory Blog
based in
Sydney

The case of the missing Jones transit circle from Parramatta Observatory

The piers of the Jones transit circle in Parramatta Park. Pict ...
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posted on
March 7th, 2013
from
Sydney Observatory Blog
based in
Sydney

Observing comet C/2011 L4 (PANSTARRS) in early March, 2013

Comet C/2011 L4 (PANSTARRS) as seen from Castle Hill, Sydney on ...
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posted on
March 6th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: Alpha Centauri

This is the lower of the two pointer stars to the Southern Cross. Even a small telescope reveals it as a beautiful double star. The two components of the double take 80 years to circle around each ...
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posted on
March 6th, 2013
from
Sydney Observatory Blog
based in
Sydney

How can a sphere be put on a flat surface or why do star maps have distortions?

Celestial globe made for navigation shows accurate positions of bright stars. Cou ...
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posted on
March 5th, 2013
from
Sydney Observatory Blog
based in
Sydney

Daily cosmobite: Canopus

This is the brightest star in the constellation of Carina the Keel and the second brightest star in the sky after Sirius. After dark it is high in the south. One way of finding it is to extend a li ...
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posted on
March 5th, 2013
from
Sydney Observatory Blog
based in
Sydney

Harry sees the February 2013 sunspot group AR11670 as a textbook example of a magnetic dipole on the Sun

A compass needle is an example of a magnetic dipole – two separated magneti ...
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