Sean Ceaser
Last night (March 28, 2003)
was a beautiful clear night for doing the Messier Marathon.
Not a cloud passed overhead all night. Seeing was fair as
there was a lot
of moisture in the air. Lindsay, Gail and Scott showed up
at the 248 site
and by the time the morning came around everything was drenched.
Gail
finished off her Finest NGCs last night, Scott was sketching M35
(and
loving it :) and doing some variable observing and Lindsay was
working on his
Beginners Cert.
I began the marathon at 8 PM. Cetus and Pisces were mostly
below the
horizon and M77 and M74 weren't visible. The sky was bright
from the
moisture which made some objects hard to find (M102) however
surprisingly
M 83 was fairly easy as was M101 and M33. Later on the sky
brightened
considerably and I got the poorest look at M17 in a dark sky that
I've
ever had with only portions of the neck showing. I saw 94
objects from 8 PM to
5 AM when the sun rose. I ended in Sagitarius and missed
M22, 28, 69, 70,
54, 6 and 7 although they were up. The sun was coming up at
that time and
most of the objects were low to the ground and washed out.
There were 96 Messiers that I found tonight.
M 77, 74, 75, 55, 72, 73 and 30 weren't visible from
Winnipeg this time of year.
During the Marathon I took a look up at Jupiter and bumped it up
to 400X
mag. It was fairly steady, about 5/ 10 seeing due to
moisture. Two
equitorial bands were visible and a hint of the temperate bands
too.
Saturn was beautiful, as usual. I was able to see the
Cassini division but not
the Enke at 400X. Saturn's shadow was visible on its rings.
Aurora was up most of the night and at about 2 AM it came
overhead, by
4:15 it disappeared. I slept in the car (with no heat!)
from 3 AM to 4:30
AM waiting for Sagitarius to come up. WHen I awoke
Sagitarius was fully
visible but M6 and M7 weren't visible to the naked eye. The
limiting
visual mag during the night was 5.3 and the limiting telescopic
mag was 11.0.
I'm out again tonight for another Marathon- any takers?
Anola maybe? The
clear Sky Clock is looking pretty good except for some predicted
cloud between
11 and 2 AM.
March 29/03 Last
night Gail, Stan and I went out to observe at Anola. I was
planning on doing the marathon again and gAIL was working on the
Herschel 400s. But our plans were preempted by a beautiful aurora
(and strong winds). Stan showed up and we all sat and
watched it. It began at about 830 PM and didn't end until
about 3 am this am. It was incredible- it went into the
southern sky with much overhead display. It danced and shot
like lightening. Stan commented that it looked like
"rock and roll hair". There were long whispy
strands that appeared like highlights in hair. It pulsated
and flickered- especially overhead. The wind picked up and
it got fairly chilly. We decided to look at Jupiter at high
mag but seeing was very poor. It seemed that there was high
humidity and Jupiter looked like it was underwater. Much
better seeing the night before.
There were clouds overhead at the beginning of the night but it
was clear for the remainder. It would have been a perfect
night for observing but for the aurora and poor seeing (which got
better as the night progressed). We changed venues and
travelled to Glenlea so we could use the warm room. There
we looked at Messiers and watched the aurora. We also
observed 4 Vesta, a bright asteroid now in Virgo, fairly close to
Vindemiatrix. I sketched the asteroid at 10:06 Pm and then
later at 1:50 AM. It was about 6th mag and slightly bluish.
It glowed exactly like a star. Without a finder
chart I couldn't have found it. It had moved about 20 arc
minutes in just under 4 hours travelling in a north- west
direction.
Stan, gAIL and I left Glenlea at just before 3 AM, but I ended up
turning around and setting up again as I wanted to capture the
morning Messiers that I had missed the night before. I
slept for another hour in the warm room and got up at 4:15 AM to
catch the Messiers in Sagittarius. I found M6 and 7 low in
the sky, which I had missed the morning before. I also
observed M22 and 28. I searched for M69, 70 and 54 but they
were too low and washed out. Surprisingly I glanced to the
eastern horizon and I spotted two familiar stars in Pegasus; Enif
and Baham. M15 was up! I glanced over and saw the
double stars alpha and beta Capricorni. M 72 and 73 were up
too and M2 as well! I was able to observe M15 and 2 but
couldn't see M 72, 73 or M75. So I stand corrected in the
number of Messier's observable from Wpg at this time;
Assuming that M54, 69, 70, 72 and 73 can be seen there is a total
of 106 Messiers that can be seen at this time. Only M77,
74, 55 and 30 can't be seen. Last night and tonight I've
observed 98 of them.
Look up!
Sean