Stripes on Jupiter

April 26, 2008 on 6:46 am | In Astronomy, Hardware | No Comments

I got to see the stripes on Jupiter for the first time this morning. I was up at 5:50 this morning and decided to venture into the backyard. The sky was clear but lightening already, so the only two objects still visible in the sky were the Moon and Jupiter, about 5 degrees apart in the southern sky. It only took a couple of minutes to get everything set up; my Meade 4502 sits under a covered porch in the backyard and was acclimatized. With my medium eyepiece in I was able to see four of the moons and barely see three distinct stripes on Jupiter. I tried viewing with my 4mm eyepiece, but it had been inside the house and fogged up just as I was getting Jupiter in focus.

On a side note, I put the telescope together with the garage sale mount on the Meade legs. The garage sale mount works better for small adjustments since I don’t have the motors for the Meade mount. The Meade tripod is a lot better than the wooden legs the garage sale mount came with, so it all works out for the best. I’ll post some pictures in a week or two.

Chabot Space and Science Center

April 25, 2008 on 8:20 am | In Astronomy | No Comments

Took the family to the Chabot Space and Science Center last weekend. We had a lot of fun and the kids want to go back again, but at six and eight, the boys are near the limit of what’s really the target audience for Chabot. My guess would be that any kid over the age of ten is probably going to be bored by Chabot fairly quick. There are a few things that will keep older kids interested, but I don’t think it’s enough for more than an hour of entertainment.

The boys favorite part was the Ask Jeeves Planetarium. We watched a show called Beyond Blastoff: Surviving in Space. We, meaning the wife and I, had decided to become members at Chabot, since the difference between a membership and day use for a family of four was less than it would cost for two visits and gave us reduced entry costs to a number of other museums. Membership also comes with a separate line for the theater, so we were the first one’s allowed in. We chose seats as close to the center of the theater as possible, but the truth be told, I don’t think there were any really bad seats in the whole place. The boy’s favorite part of the whole movie was an animated sequence where a scientist subjected astronaut ‘Chad’ and his clones to all of the hazards of space one by one. They particularly liked the part where cosmic radiation turned Chad into a living DNA molecule. My wife’s favorite part was listening to Ewen McGregor narrate.

For adults, the majority of the Center get’s boring pretty quickly, but it is definitely set up with a lot of photo ops in mind. There’s a mock up of a Mercury lander (or is it a shuttle, I forget) for the kids to sit in. There’s a series of interactive exhibits that are very similar to what you can find at the Exporitorium, each of which are designed to show a particular aspect of space. There was even a real meteorite that one of guides was letting the children (and adults) hold.

The draw for me was the telescopes; Chabot is home to the largest refractor (20″) in the world that’s still open to the public. They also have a 36″ reflector. Both telescopes are open to the public Friday nights. I don’t know when, but I’ll make the time to get there soon! Hidden in one corner of the observatory was a cache of 10 or so smaller telescopes, some of which are models I’ve been looking at purchasing when I have a few (hundred) dollars to spare. Later in the afternoon they had a scope set up for viewing the sun, but I didn’t get to see any of the sun spots they said might be visible.

If you have young children and an afternoon to spare, Chabot is well worth the visit. If nothing else the drive up is beautiful and it’s worth taking a look down on Oakland. Both of my boys want to go back, though my youngest says he prefers the Exploritorium. Given that we’ve been there half a dozen times in the last two years, I’m ready for something different, a role Chabot fills well.

The boys trying to look weightless

Beehive Cluster by Bradford

April 16, 2008 on 3:41 pm | In Astrophotography | No Comments

I’ve put my personal attempts at astrophotography on hold for a while. My new telescope uses .965″ eyepieces, meaning the adapter I have for the Canon Rebel XTI won’t work. But I’m still playing with some of the online observatories I found last month. I’ve been a little surprised by the Bradford Robotic Telescope; I was under the impression that they had such a big backlog that it could take up to 6 months to get a picture, but I’ve gotten my first two in under a month. The first, a picture of the Orion Nebula, was overexposed to the point of being useless. I figure it was probably taken close to sunset given the time of year and low altitude of Orion in the sky right now. I’ve requested another picture with a shorter exposure time, but I’m figuring it’ll run into similar problems.

On the other hand, my second request turned out pretty well. It’s also overexposed, but not to same degree. You can take a look at it here. There’s a hair or a scratch on the lens which would probably annoy the heck out of me if I was actually paying for this. I’m giving this photo another try with a shorter exposure time and a neutral filter, so I’ll hope for the best and post it in the WPG2 folder when it comes in. Some time in May.

New Telescope: Meade 4504

April 13, 2008 on 7:40 am | In Hardware | 1 Comment

Thursday night I found a telescope for sale on Craigslist, a Meade
4504 4.5″. I knew from the price and make of the telescope that this
wouldn’t be the final telescope I ever wanted, but given the budgetary
constraints my wife has put me under, I figured it’d be ‘good enough
for now’. Several phone calls and a 20 minute drive later I was at the
owner’s house for a look at the telescope. The 4504 is shipped with a
Goto system which is notoriously questionable, but this one had been
lost and in any case I was more interested in the telescope itself than
the electronic starfinder. The owner had bought it used, but it was
obvious he had kept it clean and that it’d been well taken care of. 30
minutes and a little haggling later and I went home with my new tube.

Earlier in the day I had found a tripod and mount with hand driven mechanisms,
but I decided to give the Meade it’s first try with the tripod it came
with. Shortly before sunset I set it up in my backyard and left it out
there while I played some tabletop games with friends (St. Petersburg,
if anyone plays). After a couple of hours, shortly after 10 pm PDT, we
went out and started playing with the telescope. The first few stars
were very clear and bright, but otherwise unimpressive to the guys.
Then we found Saturn.

It’s hard to explain the thrill of seeing the rings around Saturn for the first time through your own scope; a
little fiddling and suddenly the rings came in with enough clarity to
take my breath away. Here was this tiny telescope in my own backyard
with enough resolution to be able to tell beyond a shadow of a doubt
that it was Saturn we were looking at. For nearly an hour we all took
turns at the scope looking at the little dot with a ring around it.
There were a number of accidental bumps and I had to resight each time,
but it was well worth looking at Saturn with the three different 1″
eyepieces that came with it. I’m 6′4″ and I’d set the scope at a
comfortable height for me, which made viewing extremely difficult for
anyone else. We finished up the night looking at the craters on the
moon, which turned out to be a good thing, since the brightness of the
moon all but ruined our night vision.

I’m an early riser and this morning was no exception, with a
dream waking me up at 5:45. Since the sun hadn’t really started to
lighten the sky yet, I decided it’d be a good time to take a look at
the stars again. I was half awake and just picked the brightest object
I could see in the southern sky. Imagine my surprise when it turned
out to be Jupiter and I could see four of it’s moons without even
trying. I tried to view it under higher magnification, but my
hamhandedness prior to coffee made all but the widest angle lens
unusable. Still, seeing one moon to the right and three to the left
was an impressive way to start the morning.

I like the Meade 4504, and for $60 it was a steal. If I really do decide I want to
continue with astronomy I’ll definitely need something better in the
long run. But as a first time telescope on a limited budget, it’s more
than met my expectations. I never suspected I’d be able to see as much
as I can with it. I’m going to place it on my garage sale tripod
tonight and play with it some more. The Meade tripod is touchy as all
get out, and I hope the other tripod will be a little easier to deal
with. I don’t like the fact that the eye pieces aren’t a standard
size, but I’ll figure out a way to deal with that sooner rather than
later. In the mean time, I’m readjusting the height of the tripod and
setting it up so the kids can view Saturn for themselves tonight.

Headed to the Ferguson Observatory tonight

April 5, 2008 on 10:36 am | In Astronomy | No Comments

Every month the Ferguson Observatory at Sugarloaf Ridge State Park has a open house where folks from all around the area can come out and take a look at the stars. The kids and I went last month but the sky was unluckily partially obscured most of the night. We’ve got clear skies right now, so if it continues we’ll take a trip out there again. Unluckily the site doesn’t open until 9:00 pm, so I may not be able to take the kids; their bed time is 7:30 and they’re usually asleep by 8:00. Still, even if I have to go alone, it’ll be worth the drive out there.

Entries and comments feeds. Valid XHTML and CSS. ^Top^
17 queries. 0.276 seconds.
Powered by WordPress with jd-nebula theme design by John Doe.