One more image for
your collections. It is a composite, because the Sun was
overexposed in the frame
showing the tree silhouette from Waterford Michigan.
Canon EOS 10D, Questar
700mm, no filter.
Feel free to reduce the
brightness of this to your taste. I had to lighten it for my
printer.
Enjoy!
Dan Laszlo
Pres.-NCAS
Venus Transit, June 8 2004
from Dan Laszlo
His story follows:
The months before
the transit of Venus were good for suspense. A sunrise view could
be found in
the Eastern US, if the
fickle weather would hold. Travel North and East would give the longest
view.
Florida would give a relatively
short show. The Maritime Provinces would be fun to explore, but unfamiliar
and dicey for a trip on
short notice. I had fine memories of sunrises on Cape Hatteras, but
Iíve been
soaked in a downpour there.
I cringed as the weather satellites plotted frontal systems that blanketed
the
coast from Maine to the
Carolinas. I really started paying attention to the forecast models
in the week
before the event.
The large scale trends in clouds and humidity were not good for the Midwest
or Northeast
or Southeast. Moab,
Utah, looked great, too bad it was out of the transit zone. There
were exceptions,
little windows in Michigan
and New Jersey. My brother kindly hosted us in his home near Detroit
in the
weekend before the event.
We could make a last-day dash for a hole in the clouds if we had to.
As the
days wound down on the
Clear Sky Clock. prospects for New England improved some, but I did not
want
to risk getting clouded
out. Michigan looked about the best and would give us over an hour
to watch.
We tapped my brother's knowledge
of the neighborhood to find an uncluttered horizon. This is a project
in leafy Michigan.
His first choice was a local ski hill, which had great vistas. We
would have to lug equipment
some distance, so we kept
looking. A nearby megamall by I-75 was our next best prospect.
No shortage of
parking, and pretty clear
to the East, except for some power lines. With this adequate site
in mind, we looked
a little more for a site
with a more unwired look. The map showed a promising Bald Mountain
Park. Driving
by, we could not find the
mountain. Some gaps in the trees looked promising, so we went to
the township office
there to confirm access
to the park at 5 AM. The township officer confirmed the lack of mountain.
They needed
it somewhere else, so they
scraped it off, it's just flat here now . . . If you want a view
without trees, Iíd use
Friendship Park.î
As he recommended, we found horizon we needed, surrounding a soccer complex.
It was a
short drive away, had acres
of grass, and could be used early in the morning. We scouted a site
on a berm
along the west side of
the park, and used a compass so line up on a cleft in the trees to the
Northeast. Ever the
pessimists about local
clouds, we then drove up to Port Huron, to scout some sites on the beach.
There I was
reminded of the constant
wind off the lake. I would love the uncluttered horizon, but my scope
would get a severe
case of jitters in any
breeze. We headed home with the soccer fields our first choice.
The weather models were
still promising the night before. An earlier indication favoring
Northern Michigan
shifted south, so we should
get our shot. We turned in for a short nightís sleep.
Up at 4:30, a Last Quarter
Moon hung low in the South
for our drive. The NE horizon was lighting as we pulled up by the
berm. We were
able to glimpse Polaris
to set up our mount. We heard a faint hiss, and looked across the
soccer fields to see
the pale arcs of the sprinkler
system. We were then out of spray, but I have vivid memories of getting
doused
when a head pops up nearby.
It was a slight relief to be off to the edge of the field, but we remained
prepared
to grab the scope and run.
We then had about half an
hour to wait. This is most unfamiliar. Instead of a last minute
dash for holes in the
clouds, we stood with the
fields to ourselves as darkness lifted, the drone of Baldwin Avenue commuters
behind
us. The sprinkler
march continued. The time passed mercifully swiftly.
Our first hint of color
came on a distant jet contrail. It's coming, said Andrew, and the
low clouds took more
shape, not a threat.
They picked up a few crimson streaks as the sky lightened. We strained
to catch the Sun's
disk in the trees, and
I got my first peek in binoculars in the gap. ìGot it!î
I could faintly see the shape through
the clouds, how long to
make out Venus? He swung the scope over and I peered in binoculars
. . Oh, look at that!
Consciously, I had rehearsed
the view dozens of times. Sun comes up with a black speck on the
disk. I thought
the event might be anticlimactic.
Would I second-guess the trip?
Well, no! We had an
intensely red, banded Sun. The spot was peculiar, so unlike a giant
sunspot. The inky,
perfectly round spot on
the flattened Sun was somehow familiar . . . it immediately called up memories
of Jupiter
shadow transits.
Clouds striping the Sun reinforced the illusion. I felt I was standing
on a tropical moon, getting
a closeup view of a Jovian
world through the trees. Truly unearthly. These minutes were
the best.
Before long, the gas giant
was clear of the trees and punched through the clouds, and the time to
see it unfiltered
was over. Our H-alpha
scope was barely useable earlier, but was getting adequate light after
about a half hour.
Venus was the perfect little
black disk. Totally out of place among the wispy solar features.
The solar disk had
several decent little prominences
and an active region on the disk not far from Venus. The white light
view was
also worthwhile, especially
when Venus lined up on the Sunís rim at third contact. The
size difference was then
brought home. In
a solar eclipse, the Moon challenges the Sun. With Venus, reality
came home, a star is a
massive thing.. The
pace of the transit was restful, compared to the scramble during a total
solar eclipse.
We got a selection
of photos, but observed directly from 3rd to 4th contacts, looking for
the black drop in rippling air.
We watched for the last
hint of Venus by the chromosphere. We did not look for Venusí
atmosphere, guessing that
our air was too turbulent
to show it. We also took great pleasure as the sprinkler system passed
us by without a drop.
Mistakes were made.
I stupidly did not switch the camera sensitivity to high, so we ended up
with some really long
exposures, especially in
H-alpha. Should I take an ND3 Baader film next time? Would have been
great for the
low Sun. Did we get
mosquito bitten? Could have been much worse.
But, that was great!
I now have new appreciation for sunrise/sunset events. Turbulent
air will take some toll on the
details, but the twilight
hour is so unique. Would I travel just to see the transit overhead
around noon next time?
And miss the sunset?
I think not!
We wrapped up our morning
by Great Lakes Crossing when we found a local amateur group from McMath-Hulbert
Observatory. We got
a fine tour of this pioneering solar observatory.
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