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M45 - TSA102S
M45 - The Pleiades
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The Pleiades, also known as M45,
the Seven Sisters, Seven Stars, SED, Matariki (New
Zealand Maori), Subaru (Japan), or Bitang Skora
(Borneo Bidayuh) is an open cluster in the
constellation of Taurus. It is among the nearest
star clusters, and is probably the best known, and
is certainly the most obvious to the naked eye.
The cluster is dominated by hot
blue stars that have formed within the last 100
million years. Dust that forms a faint reflection
nebulosity around the brightest stars was thought
at first to be left over from the formation of the
cluster (hence the alternate name Maia Nebula
after the star Maia), but is now known to be an
unrelated dust cloud in the interstellar medium
that the stars are currently passing through.
Astronomers estimate that the cluster will survive
for about another 250 million years, after which
it will disperse due to gravitational interactions
with its galactic neighbourhood.
(From Wikipedia, the free encyclopaedia)
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Exposure Data
 | Instrument: Takahashi TSA102S (TOA Reducer/
Flattener) |
| F/stop: 5.8 |
| Exposure: |
| Camera: Hutech Canon EOS 40D DSLR |
| Sensitivity: ISO 1600 |
| Mount: Skywatcher EQ6 Pro |
| Date: November 29, 2008 |
| Exposure start: |
| Location: Heathcote, Victoria |
| Autoguider: Meade SCT 8", Meade DSI |
| Enhancement: Registar 1.0, Adobe Photoshop CS2,
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| Notes: Guiding PHD |
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Public Viewing
Nights |
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Just to let
everyone know, public viewing nights are held
every first Friday of the month. Clear or cloudy
nights the public viewing night goes ahead.
Members man a number of telescopes of various
sizes and types, and for those nights where the
sky is cloudy, extended astronomical presentations
are presented in the MPAS Viewing Centre.
So please come
along and enjoy our nights sky.
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