Re: Re: Backyard observing 10/09/01

From: Chuck Olson (chuckolson01@No-Spam)
Date: Wed Oct 10 2001 - 15:59:57 MST

  • Next message: Dan Wright: "Re: Is observing dangerous? (was Informal Survey)"

    That's pretty funny - - "Cordless". Reminds me of the nickname they gave one of the characters
    in "Ghost Busters".

    Chuck

    ----- Original Message -----
    From: "Dan Wright" <slcdmw01@No-Spam>
    To: <sf-bay-tac@No-Spam>
    Sent: Wednesday, October 10, 2001 3:19 PM
    Subject: [TAC] Re: Backyard observing 10/09/01

    > Hey! I did some backyard observing last night, too, from my house in Palo
    > Alto.
    >
    > I go outside at 10:45 PM and look at the sky with just my eyes. My backyard
    > faces east. I recognize Cassiopeia, but I can't recognize or name anything
    > else (from this you can tell I haven't yet earned my Certificate for having
    > Observed Every Object in the Universe) :-)
    >
    > Next I get binoculars. The seeing from Palo Alto is surprisingly good. There
    > is this window in the sky, in the general area of Cassiopeia, where for some
    > reason the light-polluted mist is rolled back, like God parting the Red Sea,
    > and the view through binocs knocks my socks off.
    >
    > Below Cassiopeia I witness an awesome stretch of sky with stars crowded all
    > over the place. What is that? I go inside and fire up SkyGlobe 3.6
    > (incredible freeware assembly-language program) to find out. OK it's named
    > Perseus. Look! I learn that both Cassiopeia and Perseus are thick in the
    > middle of the Milky Way. Heck, I learn something new every day. I see also,
    > from this software, that Saturn should be prominent.
    >
    > Right. So I open the shed and drag out my very best telescope (happens to be
    > my only scope): an equatorially mounted Celestron 60mm refractor "Firstscope".
    > Oh boy. A book tells me one of the stars in Cassiopeia is supposed to be a
    > double. Skyglobe calls this star "ETA CAS". You're supposed to be able to
    > split it, if you can achieve 100X magnification.
    >
    > The little plastic spotter is almost useless, so forget that. I sight along
    > the barrel of the refractor to get it in the neighborhood of Cassiopeia, then I
    > go hunting around using my Celestron 25mm "Wide View" eyepiece. Dang I have
    > the best equipment, don't you think?! Each time I mention my eyepiece, a
    > choir of brass horns should play fanfare ... so, 25mm Wide-View! Tat-Tata-Da!
    > Yeah!
    >
    > Anyway. I see lots of stars but I can't be certain I've got ETA CAS. I trade
    > off between quick looks through the binoculars and quick looks through the
    > scope, to help sort things out. But it's difficult because the scope view is
    > inverted! Maybe if I hold the binoculars upside-down ... no, that doesn't help
    > ;-) OK eventually I'm 100% certain I've got ETA CAS centered in view.
    >
    > The scope is 900mm focal length, so my 25mm "Wide View" eyepiece (Tat-Tata-Da!)
    > gives 900/25 = 36 magnification, right? Is that how you calculate it? Next I
    > put in my 2X barlow. That means 72 power, right? Well, can't split it. Next
    > I use my 10mm eyepiece, 90 power. I start to imagine I'm splitting it. I go
    > for broke and use the 10mm with the barlow, but I just don't know. The image
    > seems wobbly and vague. Maybe the magnification is beyond the seeing. Or
    > maybe I just need to get my dang contact lenses to settle down. OK now I think
    > I've split it. A smaller dim dot to the right of the main star in my view. Or
    > maybe I'm just imagining it.
    >
    > My wife starts calling from the bedroom. I can hear her from out in the
    > backyard. When are you coming to bed? Pretty soon dear, but I'm still kind of
    > awake.
    >
    > I'm buzzing with this soft excited feeling, that I've been susceptible to all
    > my life, that comes onto me when I'm working hands-on with fine systems or
    > mechanisms or instruments. You can bet this science-excited feeling is the
    > reason I wound up here in Silicon Valley, instead of staying in my native Salt
    > Lake and becoming a truck driver.
    >
    > OK so I point the thing at Saturn, and Saturn looks fine. I mean, it looks
    > really great. Stunning through my 25mm Wide-View (Tat-Tata-Da!) + barlow, and,
    > like, 3D and close enough to touch through my 10mm. I can see that gap in the
    > rings, you know, whatever that gap is called. But using the 10mm and barlow
    > together, I see the wobbly vague effect again. Maybe those lenses are not
    > meant for each other.
    >
    > My wife calls for me again. Says the bed's too cold and she can't heat it
    > herself. It's a female metabolism thing. She uses our wife-husband
    > code-nickname for me, "cordless". "Cordless!" It means she wants my
    > high-metabolism, "cordless" auto-heat-generating self in bed with her, so she
    > can get to sleep. OK.
    >
    > I did not leave the scope set up. I packed away the eyepieces, then tucked the
    > scope (tripod and all) under one arm and carried it back to the shed. I'll
    > observe tonight too if those clouds don't show up.
    >
    > Well, here's looking up your old address!
    >
    > Salutations from Dan Wright
    >
    >
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