Friday, August 10, 2018

In The Sweet Spot

Last night: I was already tired from a long day's work as I carried my Astroscan forward to the Sweet Spot beside the portside boat station--where the ship's engine and generator vibrations are damped-down by a happy coincidence of hull structures and cargo tank placement--and set up for a few hours of stargazing @ sea.

It was an absolutely beautiful night, with only a mild swell to move 'Laramie's hull, a light wind, and those clear, dark skies that can only be found hundreds of miles from the nearest streetlight or 7-Eleven. The kind of sky where the forms of familiar constellations become difficult to discern because of the multitudes of dimmer stars that seem to crowd them out and break up the patterns we grow accustomed to seeing in the heavens.

Seeing and transparency were excellent, and after acclimating my 'scope's optics to the warm, humid Mediterranean air I began to explore.

Open clusters, globulars, planetary nebulae and galaxies presented themselves for inspection; M51, 27, 31, 32, 110, the Coathangar, M13 and 92--all framed in my 40mm and 25mm eyepiece fields like precious jewels and minerals on display. Stars; Hershel's wonderful Garnet, the spooky duo of v (Nu)Draconis, Lyra's Double-Double and so many more...the time flew past as I drank in the light of distant stellar beacons. And as finale; the fuzzy apparition of Comet Giacobini-Zinner, traveling through Cassiopeia, a distinctly elongated blur in my optics.

And, just like that, four hours had passed. If I was tired when I toted my 'scope up to the bows, then I was reeling with exhaustion as I began the climb back to my stateroom and bunk. But I was also drunk with starlight, overpowered by Saturn, Jupiter and Mars, stunned by the vistas revealed by my little telescope as the ship carries me across the surface of the sea and beneath the stars.

Immensities below, infinities above...the word and concept of awe seem to lack sufficient depth and power. To feel the rumble of the engines, hear the rush of water down the sides and the occasional splash of an escorting dolphin, to drink in great draughts of wonder from above...THIS is why I do what I do, and this is why I cannot imagine ever stopping.

 I really do have the best job in the world.

Sunday, July 29, 2018

Sunday, July 22, 2018

f-stop: Sharing The Skies


The 8-day-old Gibbous Moon

Another very nice evening of "sidewalking" on the shore at Marathi; I had two dozen members-of-the-public join me to explore Luna, Jupiter, Saturn and double star Albireo. The little Mak is getting quite a work-out on this deployment, but the time for a rest is not yet here--we have the lunar eclipse coming up on the evening of the 27th, after all!

This, for me, is what it's all about. I don't go to the effort of toting a telescope on these cruises in hopes of carrying-out observations of galaxies or comets. (There is usually far too much light pollution in port areas and cities I visit for "serious" observing) I bring the optics along in order to share the planets and Moon with people I meet along the way.

This is a large part of my enjoyment and love of astronomy; the act of introducing strangers to the greater Universe around them is just as powerful and rewarding an experience as exploring the skies alone. I like--need--to share this sense of wonder with others. Call it Tom's addiction.

Photo: crewmembers from Spanish frigate 'Numancia'--our neighbors on the next pier over--join me to enjoy the satellites and cloud bands of Jupiter. Next stop--Saturn!

'Jupiter' es 'Yupiter' en EspaƱola!








Monday, July 16, 2018

f-stop: Moon Over Marathi

Moon, Venus, Regulus and Rho Leonis
A shot from last night; the 2d16h-old Moon (its "dark" face dimly illuminated by sunlight reflected off Earth), bright planet Venus, and two of the brighter stars in the constellation Leo, the blue spark of 1st-Magnitude star Regulus (a Leonis) to the lower left of Luna and the dimmer point of light that is Rho Leonis below Venus.

I love views and images like this one because of the sense of perspective they evoke; at the time I took this photo our natural satellite was 225,000 miles from Earth (1.2 light-second), Venus 87,000,000 miles away (nearly 8 light-minutes). In contrast, Regulus is estimated to be 79 light-years from our solar system, while Rho Leonis is far more remote at approximately 5,000 light-years.

Imagine the distances involved--we are looking back through time; photons streaming across enormous distances to be collected by my eye and camera lens--5 millennia captured in a single snapshot taken on a beach in Marathi, Crete.


 
Another photo of the Moon from last night. I love observing and photographing our largest natural satellite (apparently Earth picks up wandering rocks as "temp" moons every once in a while), and I'm surprised by the amount of identifiable detail one can see on even a hastily-composed snapshot of her disk. I made up a "key" to a few of the features to be seen on last night's image: how many can you pick out?

 

Saturday, July 14, 2018

f-stop: Young Moon

The 1d15h23m-old Moon over Souda, Crete
On my way back to the ship at twilight...a sudden rift in the clouds revealed the 1day15hr-old Moon only a few minutes from setting. I managed a brace of hand-held shots before Luna was again lost in the clouds.

One thing that never ceases to amaze me is that one can actually make out detail on a slender crescent like tonight's apparition. In the zoomed-in shot, look for the rounded edge of Mare Crisium (Sea of Crisis) at 3-o'clock, and the small indentation in the terminator that marks the crater Humbolt at about 5-o'clock on the lunar disk.
A hand-held zoom shot--note Mare Crisium and Crater Humbolt
In a few days these details will be lost in the crowd of features and details as our satellite teasingly reveals her face. Stay tuned.