Stephen Wolstenholme wrote:
On Tue, 27 Mar 2012 04:11:22 -0700 (PDT), Richard Dixon
wrote:

I realise that astronomy isn't meteorology - but nonetheless - did
anyone else see the star (?) flickering red and green as well as
your common-or-garden white last night towards the south-western
sky? Fascinating. At first I thought it was a plane but that
realised it wasn't moving.

Richard

Try uk.sci.astronomy

Stars don't flicker red and green. It may have been a geostationary
satellite or a planet.

Steve

Steve, the answer to your query (Sirius) has been given elsewhere, but a
couple of points:

1. I do not think that there are any geostationary satellites that are
even close to being visible to the naked eye, and

2. Planets seldom twinkle (the main reason being their apparent diameter
in the range of about 5-50 arc-seconds, compared with that of stars not many
of whose diameters are greater than 0.05 arc-seconds), the usual exception
being Mercury, whose apparent diameter is the smallest of all the classical
planets and is usually viewed when close to the horizon.

Roger