Viewing Mars is by far the most exciting and agonizing component of this
journey. The excitement starts when the Sun begins to set and the
sky is clear, even though Mars won’t appear for a few hours, I collect
my equipment and pre-stage them.
My equipment includes binoculars (one mounted on a tripod & one not),
telescopes (two borrowed), rig for taking fixes (inclinometer & round
protractor mounted on a frame), books (Moore, Field Guide), planisphere,
flashlights, lantern, clipboard & pencils.
Pre-staging the equipment is simply putting the binoculars and telescopes
on my porch to acclimate them to the outside temperature, which is definitely
cooler than inside my house. I found out the hard way that optical
equipment needed to reach ‘thermal equilibrium’. When I first started
to observe with my 10 x 50 binoculars it would not keep in focus and I
thought that it was of poor quality, but I found that after about and hour
or so they worked great. A few days later a friend loaned me a telescope
and told me that I should set it out on my porch “to cool down the lens”
at least a half hour before I intended to use it.
My excitement turns into anticipation as soon as I see Antares because
I know Mars isn’t far behind. I start thinking, I wonder if I’ll
see Antares’ green friend, or if Mars will reveal any surface features,
or asteroids, or Moons, or anything different.
Usually after Antares makes his appearance I move my equipment to the observation
area (back yard). The spot I use was selected by trial and error;
my early observations were taken from a spot that hampered (trees in back
yard and horizon) my viewing of Mars and Antares but gave me full view
of the whole sky. My current spot precludes observing the northern
sky, but gives me better viewing of my two primary targets.
They both rise in the southeast, I track their movements by taking fixes
(altitude and azimuth measurements), and watch them with binoculars till
they come south. My southern horizon is framed by two trees and the
red specters are high enough in the sky that I get about two hours of unimpeded
viewing of either entity – unfortunately, simultaneous viewing of both
of them in the frame is limited because as Mars enters, Antares is preparing
to exit. But as soon as they both are ‘framed’ I make several
sketches – naked eye of the whole frame, and binocular and telescope views
of Mars. I have early binocular view sketches of Antares but they
are basically the same, whereas the star fields around Mars change.
Agony and frustration arises from the elements and inexperience.
On several occasions while I was waiting for Mars to enter the frame, clouds
or fog would come out of nowhere. Last week Thursday (24 May 01)
for example, I was looking at Antares through my binoculars, then I noticed
that the other stars in my field of view were fading – I removed the binoculars
and saw that Antares and all the other stars around him disappeared.
Just like that, one minute bright and beautiful, and the next minute gone.
Another ‘element’ problem is condensation on my binoculars and telescope
(another lesson learned the hard way). When I first started observing
I noticed that after awhile my binoculars wouldn’t stay in focus, I thought
it was because of the cold, which in April was near freezing – there would
be a light coat of ice on the table I used. So I started covering
my equipment with scarves and towels, they helped, but then they
would get saturated with moisture and my binoculars would get ‘foggy’.
I now use plastic bags to cover my equipment; if I’m not looking through
them they are covered up – this has been successful to date.
My lack of experience led me to collect useless data, early on I neglected
to sketch the star field behind Mars, or note colors or shape. Also,
inexperience at using the equipment (telescopes) and knowing what I’m looking
at set me back.
However, I’ve gained some experience and in spite of the elements I have
had some nights of good viewing.
Sketches,
comments and analysis …
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