Saturday, July 25, 2020
#565 Night of the Comet
What’s the ground truth about this comet? It’s the best we’ve
had in years—maybe since Hale Bopp departed the inner Solar System. But
don’t fool yourself: Hale-Bopp wasn’t just a naked eye object; it was a
naked eye object for a long, long time. And it wasn’t just bright; it was
BRIGHT. At its height, it was visible in near daylight. This visitor, on the
other hand, now requires binoculars to be seen if, like most of us, you are a
denizen of suburbia. In fact, its position meant that even when it was at its
brightest most observers needed optical aid to see much of it. If anything.
Wish I could have seen NEOWISE in its morning passage. I
love morning comets—maybe because they remind me of my first one, long ago Ikeya-Seki. The stars just didn’t align for your old Uncle this time, though.
As you might not be surprised to hear, it being July and me being down here in
Possum Swamp, the weather, including the dawn weather, has been lousy. But there was more to it than that;
your old uncle was too worried to be much in the mood to wake up at oh-dark-thirty
for comet chasing.
“Worried about what?” I
was potentially exposed to the COVID 19 virus. The details don’t matter. Well,
except for the fact that everybody involved was masked and wearing gloves and
the place where the exposure occurred was disinfected. Those things meant I wouldn’t
get sick. But I wouldn’t know that for at least ten days.
Where are you little Panstarrs? |
All this happened fairly quickly considering the fact that our poor state is
facing a huge spike in cases. About an hour after we arrived, one of the heroic
nurses was at my car window taking my temperature and my blood oxygen level. The
bad? I was running a modest fever. The good? My blood oxygen level was fine, which
I was told is more important than your temperature. Soon, a nurse had a swab up
my nose. Despite what you may have heard, that is uncomfortable but not
painful. I liken it to the feeling you’d get as a kid when you accidentally inhaled
some heavily chlorinated pool water.
Next? Back home at the New Manse, there was nothing to do
but wait and see. The fever had been worrying, but I was pretty sure I had a
mild sinus infection. At any rate, Miss D. had ordered one of those gun-like infrared
thermometers and a pulse-oxy meter from Amazon. Both insisted I was fine. Blood
oxygen in the high 90s and no more fever. Of course, your old Unk being the way
he is, that didn’t help. Every morning I’d awaken with a slightly scratchy
throat (from a night in the air conditioning) and would be sure I had
IT.
We continued to be symptom free, and five days after we were tested the results came in: NEGATIVE. In a few more days, the two weeks of
our self-quarantine were up and I was a free man. Well, free enough to at least
journey to Publix at 7 a.m. once a week for groceries and to the comic book store on Wednesdays to clear my box. The whole thing had
spooked me, and other than that I am sticking close to home. Let this be a cautionary
tale: the only reason, I’m convinced, I
wasn’t sickened and maybe worse (at my age I am definitely an “elevated risk”
kinda guy) was the mask, the gloves, social distancing, and the disinfecting we
did. I hope you also do these things, muchachos. If you are like most amateur
astronomers and like me, you are not in the spring chicken demographic and do not
want to play around with this stuff.
Be that as it may; the end of my quarantine also brought a
temporary lifting of the early evening clouds—Neo had now moved into the evening
sky. I was ready to tackle another comet in a long string of “my” comets. But how, exactly, would I do that?
The finished mount did look funky. |
Next question? Which binoculars? Over many years
of (occasionally) serious observing, I’ve accumulated numerous pairs of
glasses. I’ve never considered myself a real binocular fan, but, like cats, they’ve
just come to me: everything from a sophisticated
pair of 40mm roof prism binocs, to the everyday bread-and-butter 10x50s, to my big
honkin’ Zhumell Tachyon 25x100s.
Yeah, 100mm binoculars, the “six-inch refractor” of the
binocular game. We all want ‘em—or think we do. To make a long story short, about
nine years ago I found you could buy a pair of Chinese 25x100s for about
250 bucks. Not only that; they were garnering a reputation for excellent
optics. Only 250 for 4-inch binoculars? Yep. Naturally I ordered a pair and
found them to be excellent optically and at least good mechanically (you can
still buy the Tachyons, but the price is about double what it was a decade
ago).
The thing about 100mm binoculars…well the things?
They are great on the sky. Not only do they obviously gather a lot of light;
they have enough power to make them more usable in compromised skies than, say,
7x binoculars. I’ve even resolved the rings of Saturn with ‘em with fair ease.
That’s the good thing. The bad thing is that when you pass 70mms, binoculars’
weight increases exponentially. You might conceivably be able to hand-hold 80mm
glasses for short periods. 100mms? Fuhgeddabout it. And a tripod, even a big, heavy
video tripod, ain’t good enough. You need a genuine binocular mount.
And there are some very good binocular mounts out there. Like
those sold by Oberwerk (nee Bigbinoculars.com). But they don’t come cheap, and
you simply cannot compromise when it comes to 100mm binoculars. “Good enough” won’t
do. The problem was that, as you well know, Unk is a stingy soul and was even
before he retired. The solution came fairly quickly, though, in the form of the
EZ Binocular Mount kit.
Out on the CAV field. |
The assembly of the kit is a story in itself, which you can
read about here—as you may know, Unk’s
mechanical skills are somewhat lacking. I got it together successfully with the
assistance of Miss Dorothy, but was still a little skeptical. Let’s face it; it
looks funky. You’d never mistake it for anything but a kit. Ah, but when
you mount those big glasses on it out in the dark, it’s a different story. The
Peterson EZ binocular kit works better than any binocular mount I have ever
used, big or small. If my backyard experiences weren’t enough to convince me,
using the EZ on Comet Panstarrs back in 2013 sure did.
So, the Zhumells have gotten a lot of use over the nine
years I’ve owned them? Not really. The problem is that even 25x binoculars need
a dark sky to really strut their stuff. Oh, they can do alright in the typical
compromised backyard…but given the fact that you have to set up the mount to
use them at all, it’s really no more labor intensive to assemble a telescope.
And much as I love binoculars, there’s simply no doubt a scope is a more versatile
and better choice most of the time.
But not all the time. The exception is when a comet
is in the sky. Again, there is nothing, muchachos, and I do mean nothing,
that will give you a better look at a comet than big binos. Not only do you
have a wide field and plenty of light gathering power, you get that 3D effect inherent
in binoculars. There’s also the fact that it’s just more comfortable to use
both eyes than one. So, I grabbed the Zhumells' case and started hunting
for the EZ mount.
However, it was hot, muggy, buggy, and your Unk was feeling
lazy. Of course, I still have the Peterson mount, but I haven’t used it since we
moved out here to the suburbs, and knew it was in parts and pieces in several
boxes that are located somewhere. I decided to cheat. I’ve got a big
enough Manfrotto camera tripod, and since the comet would be close to the
horizon, surely that would be good enough, wouldn’t it?
ALCON 2003 |
Well, alrighty then. No 100mm binoculars for NEOWISE. We
have one of Explore Scientific’s 100mm short focal length achromatic refractors
here. On the SkyWatcher AZ-4 alt-azimuth tripod it’s not much of a pain to
set up, and it ought to perform well on the comet. But I found myself fixated
on binoculars. As above, they really are the perfect instrument for comet
viewing (and comet hunting…like many others, the late, great Comet Hyakutake was
discovered with giant binoculars). And then the solution came to me: the good, old Burgess binoculars.
As y’all have probably divined, I am not the world’s biggest
supporter of the Astronomical League. We can talk about that some Sunday perhaps,
but for now I’ll just say that whatever my feelings about the AL, I had a great
time speaking at the organization’s 2003 convention in Nashville. What went on at
the Embassy Suites hotel all those years ago (seems like just yesterday to your
aging correspondent)? Well, in addition to talks, dinners, even a little video
observing in the parking lot, and the usual things found at conventions of all
kinds, there were vendors—folks selling astrostuff.
Now, in those days, Unk was still very definitely an
astronomy gear junkie. There was simply no way I’d go home without something
new. But what? Well, there was Bill
Burgess (who is still in the astronomy business and doing well, I hear) with
his wares. Which included a pair of 15x70 binos he was offering for—get this—50
bucks. Trying them out in the dealer room, it was obvious they were well
built and seemed good optically (the stars are, of course, the only true test
for astronomy binoculars). At any rate, how could I go wrong for fifty bucks?
I couldn’t, as tests in the front yard of good, old Chaos
Manor South (remember those hallowed halls, muchachos?) showed when Dorothy and
I got home. The humble Burgesses soon became my go-to glasses. In addition to
being high in quality and rugged, their strength was and is that they offer
more light gathering power than the usual 10x50s, but in a package that is
reasonably hand-holdable. Unlike 80s, I can use these 70s for extended periods effectively
and without strain.
The legendary Burgess 15x70s. |
There things remained for several days. Which was not all
bad. While I waited for semi-clear conditions, the comet continued to rise
higher above the horizon though it was dimming a bit. Finally, early last week,
I got what I reckoned might be my last crack at NEOWISE what with a storm
churning up in the Gulf of Mexico.
Out to the deck me and the Burgesses went again. Same
routine: scan down from the bowl of the
dipper while moving to the west. And there is it was. My lasting impression of this one?
It was a perfect little comet in the Burgesses with a tiny head, some coma visible,
and a cute little tail that extended farther than I thought it would in the
nasty skies. A friend, a talented observer, managed to see the comet much better than I did from
darker skies, and was able to glimpse the ion tail. Me? No way, but I was satisfied
with what I’d seen. Which was admittedly better than what I saw of Comet
Ikeya-Seki all those decades ago. Frankly, I’ve never seen a bad comet, y’all, and
this was most assuredly a good one. Hope you saw her or get to see her before she is gone.
What next? Obviously, I need to proceed to night three of the New Herschel Project. But as you can probably tell from the above, the weather down here in the Swamp is unlikely to allow that anytime soon. So, it’s, as Rod’s Mama used to tell him frequently when he wanted something, a great, big “We’ll see.”
Just finished reading the new Janassaries book 4 and it took me back to my student days of the 80s when I read the first three. Also an excellent read.
Hi Daz:
I was a big fan of Jerry and his Chaos Manor (the second Chaos Manor; the first belonged to a renowned jazz historian). I should reread Mote one of these days. :)
Uncle Rod
Plague has us all on edge. Tired of working from home.
Fleep KA4KOE
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