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These images are from a converted webcam, the SAC7B,
which I got at the beginning
of 2002. I have now started using a Canon EOS
300D DSLR, which I got in mid 2004. Images from the Canon are in
the DSLR Gallery. The SAC7
is still in use, but now as an autoguider.
I have a special interest in how the objects shown
here relate to the universe as a whole. So on the SAC7 pages there is
a chart showing, on a log scale, how far away the object is.
Between the closest object (the Moon) and the farthest there are 18
orders of magnitude. In comparison, there are 10 orders of
magnitude between the size of humans and the atom, and another 8
between humans and the distance to the moon. So the Earth-Moon
system bears the same relationship to the universe, as the atom does
to it.
In order for these images to be displayed
properly, adjust your monitor so that all of the gradations of black
to white in the following chart are distinguishable, especially the
two darkest shades. Generally monitor contrast should be set as
high as is consistent with comfortable viewing, and then the
brightness adjusted. The darkest shade should appear black.


SAC7B Images |
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The Solar System |
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| The Moon |
Venus |
Mars |
Jupiter |
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| Saturn |
Uranus |
Pluto |
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Our Galaxy |
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| The Orion Nebula, M42 |
M43 |
The Eagle Nebula, M16 |
The Pleaides, M45 |
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| NGC 1977 |
The Crab Nebula, M1 |
Globular Cluster, M3 |
The Ring Nebula, M57 |
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| The Trifid Nebula, M20 |
The Bug Nebula |
The Omega Nebula, M17 |
The Dumbell Nebula, M27 |
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| NGC 6888, The Crescent Nebula |
The Milky Way, with a digicam |
M8, The Lagoon Nebula |
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Out to 100 mln light yrs |
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| M51 |
NGC 5128, or Centaurus A. |
M83 |
M90 |
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| NGC 2997 |
M104, The Sombrero Galaxy |
The Antennae Galaxies |
NGC 3190, Trio of galaxies in Leo - 53
mln lyrs |
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| M96 |
NGC 253 |
NGC 7331 |
NGC 6822, Barnard's Galaxy |
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More than 100 mln light yrs |
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| NGC 3169 with supernova SN2003cg |
Coma Cluster of Galaxies |
Quasar, 13 bln lyrs away |
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The Large Scale Structure of the
Universe |
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| An animation showing the large scale
structure of the universe - data from 2dFGRS
(this page is large because of the animation) |
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Visitor
since 20th Sept 2008
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