Thursday, January 26, 2017

Quick Post: First Light

Last night: "First Light" for my newest telescope, a 6" (1200mm fl) Skywatcher Newtonian which I've installed on an old Vixen Super Polaris mount and tripod. It's very old-school (that's how I roll), with not a single electronic circuit or motor to be seen, but I'm very pleased with my initial observations with this 'scope; Venus showed its half-phase very clearly, the Andromeda Galaxy and satellite galaxies M32 and M110 were beautiful (even in my light-polluted location), and the Double Cluster in Perseus filled the field at 30X--spectacular! I've wanted a long-tube reflector like this for many years, and sitting under the stars last night in my back garden with double star Gamma Andromedae sharply defined at 120X, I am quite happy with my new "optik tube".

This evening is forecast to be even better than last night...can you guess what I'll be doing?

Tuesday, January 17, 2017

On Watching The Skies

Of all the lessons I have learned in forty-five years as an amateur astronomer, the most poignant and heart-wrenching is this; the Universe is a fickle mistress.  She can bless the observer with moments of incredible beauty or cast him down into the depths of stargazing purgatory with what can only be described as terrible whimsy on Her part.

On some nights the ancient photons seem to shower down, effortlessly falling onto one's optics to form tapestries of nebular light and dusty shadow, glorious spheres of pinpoint stars or great spiral vistas; on other evenings the optics are hazed by heavy dew and stars vanish behind skeins of cirrus, curtains of stratus, walls of cumulus. Nights of exultation, evenings of despair.

We, the mortals who aspire to divine Her secrets, to learn Her ways; we make sacrifices and lay down offerings in plenty.  We study the elder volumes of stellar lore; books authored by other aspirants and seekers--from savants with names like Tirion, Pasachoff, Webb and Peltier, French, Rukl and Moore we seek guidance in our quests; lists of jewels in the heavens to be sought with avarice and passion, maps with which to chart our voyage along the Milky Way, down the Cascade, over lunar Alps and through the gap of Cassini.

We study the tomes, and wait for darkness.


And our equipment!  Great, glittering, intricate devices of silvered glass and cylindrical metal, gears and lightning constrained to our wills.  Purchased with treasure from merchants and artisans, or made with our own hands in hidden workshops, they are part and parcel of our quest for star-stuff.  Each optik tube, each carriage of iron and hardwood an extension of our wills, our desires. Their shapes and mechanisms are both defined by us and defining us as members of the legion of observers.

We prepare our tools, and watch the heavens for errant clouds.

Alone, facing the night in solitude, or in numbers gathered as for some arcane ceremony under the arch of night, we come to our chosen places as the sun falls from the heavens. Our tools are readied as dusk falls; the intruding light of day is replaced by faint ruby glows and pinpoints of green light as verdant fireflies in the twilight. White light is banished, cursed by all those gathered. Bands of harnessed energy are deployed against the fall of dew.

We wait. 

Finally, the moment arrives.  Now, after all of our preparations, wards and spells, it is She--the Universe Herself!--who rules the darkness, who will favor us, individually or together as is Her whim.  Will the heavens open before our optically-enhanced eyes to show us wonders or will those clouds far away to the west suddenly race toward us to manifest an overcast--or worse?  Will Sirius be steady and calm or flash angrily with the Universe's disdain for all of our studies and sacrifices, warning of poor seeing and a disappointing night?  Will our tools perform as designed, gears meshing and glass focusing with precision, or will they fail in the dark crucible of the middle-night?

All we can do now is bend to our eyepieces, tend to our charts and grimoires, hope for wonders in the night, and watch the skies.

Always, watching the skies.

Saturday, December 31, 2016

Telescope Test: Meade ETX 90 RA (1996)

My new-old telescope, an ETX 90 RA of late-'90s vintage

Had a good time in the wee hours this morning, trying out my free ETX 90 'scope ca.1996. I've got it mounted on an old Meade heavy-duty tripod (I'm well-known in my local astronomical community for over-mounting telescopes!), adding a Sky-Watcher " wedge and cheesy Tasco right-angle finder. The result: a rock-solid mounting for my initial tests on this 90mm Mak.

After a rough polar alignment I sighted the 'scope on Regulus and "engaged" the drive motor. Happily I couldn't detect any delay in the drive wind-up--it started tracking immediately (though at first the noise-level surprised me--this little motor seemed quite loud in the stillness of pre-dawn!).

Went inside to warm-up and get a cup of tea. When I came back outside fifteen minutes later Alpha Leonis was only slightly off-center in the eyepiece, probably more a result of my perfunctory alignment procedure than any error in the drive motor.

So far, so good.

The optics performed very acceptably; the defocused Regulus showed only a slighty off-centered Airy disk, and focused finely all over the field of view, a nicely defined point of blue light.

The only fly in the ointment was the finder scope. As mentioned I had replaced the factory-installed finder (the use of which required a greater level of gymnastic skill than I am comfortably capable of) with a cheap right-angle unit from my spare parts box. Unfortunately the Tasco unit was nearly useless. After only a few minutes I knew that the search for a usable and user-friendly finder would continue...perhaps I might have to invest in one of the Meade right-angle products after all.

As the dawn came up, I summarized the morning's session for my observing journal:

Vintage Meade ETX 90 RA telescope:       FREE
Meade Heavy Duty Tripod:                        $55.00 (Ebay, 2004)
Sky-Watcher Equatorial Wedge                  $65.00

Night under crystal-clear suburban skies with a "new" telescope and a fresh cup of tea: PRICELESS


Friday, December 30, 2016

Quick Post: The Stars In Their Courses...

I was driving in to work this morning (usual obscene hour=0430) and listening to BBC. The Business News included a consultation with several "Financial Astrologers", one of whom predicted a downturn in the FTSE next month due to a close encounter between Saturn and the Galactic Center, which, to her credit, she assured us were in no danger of collision as they are "millions and zillions" of miles apart in space. She also noted a possible downturn in the markets because of a nearby black hole...nice to know that the loonies are keeping current on their astrophysics!

Thursday, November 24, 2016

Ships Of Piraeus

HS Giorgios Averof

The Greek cruiser 'Giorgios Averof' and destroyer 'Velos' made for a terrific start to our afternoon in Piraeus! 'Averof' is a veteran of the Balkan Wars of the early 1900s, WWI and WWII, while 'Velos' is a former USN destroyer of the 'Fletcher' class. Both of these classic ships are beautifully preserved (inside and out) and presented. there is a LOT of love here.
HS Velos

Moored alongside 'Velos' lies 'Olympias', a reproduction of an ancient Greek Trireme of the type that fought the Persian fleet in the Battle of Salamis. (I would love to see her underway in the hands of professional oarsmen!)
An ancient Ship...and a modern Sailor!

Our final maritime specimen of the day is the steamship 'Hellas Liberty', one of only three remaining "Liberty" ships of WWII. Visiting her was a bit of a shock for me--she was in SUCH pristine condition inside and out that it was a bit difficult to believe she first kissed water over seventy years ago!
Steamship 'Hellas Liberty'
Okay, this veteran ship-spotter is pretty blown-away by all of the maritime history in evidence here in Piraeus! So much to see and do...and so very little time.


A few more photos of 'Hellas Liberty'...










Wednesday, November 23, 2016

Peristeri Nights


Athens, Day Five. Another day/night, another star party! This, the latest in a series of stargazing event in and around Athens, is part of a collaboration between National Geographic and the local astronomical scene (both Pro & Am) to generate interest in NatGeo's new production "Mars".

My great fortune is in 'Grumman's visit to Athens on the very week that this massive Outreach effort is happening--and that the good folks at the National Observatory Visitor Centre in Thissio not only kept me informed about the upcoming series of star parties but allowed me to join-in and actually participate in the events!

Now THIS is what I call a great port-visit...

Only one photo for this one--I was much too busy running the Astroscan and giving the good people of Peristeri (where last night's event was held) a peek at double star Albireo and the Pleiades, or "seven sisters", to manage more than a cursory photographic effort. Other scopes at the party concentrated on close-up views of Mars and double stars; I played to the Astroscan's strengths; wide field and low-power to present a fine view of M45.

Tonight; one last engagement in the star party marathon, on a hill to the south of Piraeus. Tomorrow morning it's back to work!

Monday, November 21, 2016

Stars Over Athens


Athens, Day Four. In the afternoon I rode the ship's bus into town and enjoyed a leisurely walk 'round and about. I WAS going to visit the "Olympeon" where the Temple of Zeus is located, but arrived at its gates just in time to have them closed in my face. (Note to the Athenian Tourist Department: Love your city but if you would, make an effort to standardize the opening/closing times of your glamour spots. Please & thank you!)

As evening came around I made my way to the National Gardens, specifically the rather imposing central edifice called the Zappeion. Arrived there just in time for sunset and the beginning of a star party sponsored by National Geographic to promote their new docudrama "Mars".

Appropriately, Mars was visible in the south--I believe it is in Capricornus these days--and telescopic attention was divided initially between the Red Planet and Venus. As I had no telescope with me on this expedition I concentrated on photography, and considering the lighting situation (the NatGeo folks had set up multi-coloured searchlights in addition to the normal lighting of a major building--good thing we weren't hunting galaxies!) I think they turned out pretty well...once I'd converted them to black & white!

I think the entire star party was an enormous success...several hundred members-of-the-public showed to enjoy both the telescopic views of our planetary neighbors and "Mars" Virtual-Reality trips courtesy of NatGeo. A good time, as they say, was had by all!

Tomorrow night: another NatGeo star party across town from here; I've been invited by the administrators (and my friends from Thissio observatory) to bring the Astroscan along and join the fun. Naturally I intend to go--if weather remains clear I'd love to be a part of this!

Of course, there's a language barrier here; I'd better learn the Greek for "Coathangar", "Pleiades", and "please don't knock over my telescope" before tomorrow night!