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For RISC OS users interested in all aspects of astronomy, atmospheric and earth sciences.

news Astronomical news for RISC OS users

software Software reviews and links

hardware Astronomical equipment and RISC OS

graphics Picture galleries and image processing

resources Links, downloads and useful information

members Pages by the members of the ROAST mailing list

about Information about this site

recent updates

32-bit XEarth
30 Nov 2006
An Iyonix-compatible port of
the XEarth application, which
draws an ever-changing view of
the Earth on your pinboard.
Now with graphical configuration,
image and animation support.

Rainbow supernumaries
3 Aug 2006
A rainbow with clearly visible
supernumerary bows

New Moon pictures
14 Jul 2006
A series of images of the moon
at various phases

Cassini movie
3 May 2006
How to make a movie from
raw Cassini images

Lunar halo
17 Nov 2005
A complete lunar halo

Sunspot group
25 Jul 2004
A large sunspot group

Venus transit
24 Jun 2004
Nick Bailey photographed the Venus
transit using a solar filter

Venus transit
8 Jun 2004
Photos of the rare transit of
Venus across the face of the sun

New photographs
27 Mar 2004
Recent images of Mercury
and iridescent clouds

Mars in 3D
8 Jan 2004
Viewing stereo images
from the Mars Rover

Leeds aurora
30 Oct 2003
Aurora picture from Leeds, UK