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Old 25-02-2008, 10:37 PM
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erick (Eric)
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Thumbs up ISS buzzs Melbourne

Sometimes it just all works!

For Melbourne was predicted a -2.5 magnitude pass of the ISS tonight, almost directly overhead. All today I listened to forecasts of showers developing at night, and it was showering early this morning. But the clouds vanished late in the day and the sky remains clear even now. No wind and a nice warm (by Melbourne standards) evening.

I happened to have a collection of young people in the house tonight so I offered them an exciting sight in the backyard. Doesn't take much prompting to have young adolescents drop everything and pile out into a dark backyard!

I had carefully planned the timing and had a stopwatch running. We had ten minutes of pointing out stars, and, fantastically, what looked like two Iridium flares to the West, before the ISS was spotted, motoring towards us above the treeline. It was predicted to hit 84 deg and when it did, it clearly outshone Sirius. Most of them seemed quite stoked. It even registered as one bright pixel on their mobile phone cameras!

As I watched it go directly overhead, I checked the stopwatch. 21:20:09 Wow! only 2 secs out, and that was probably my poor estimation of the time of max elevation. We rushed to the other side of the tree to watch it head off south east, with the earth's shadow awaiting. Stopwatch in hand, I started a ten second countdown, and wonderfully, it faded from view over the last five seconds!

How do you know all this stuff, they asked!

Final views ranged from "Awesome!" "Cool!" to "Is that all?"

That was fun. Wed night we can do it all again with much the same magnitude, slightly lower maximum elevation, earlier transit (20:27:53 at maximum elevation), clouds permitting.

Eric
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Old 25-02-2008, 10:42 PM
Dennis
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Nice report Eric - it was enjoyable reading.

Cheers

Dennis
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Old 25-02-2008, 11:02 PM
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h0ughy (David)
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wonders will never cease, will they be back for more?
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Old 27-02-2008, 10:08 AM
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erick (Eric)
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Oh, and one sad thing Before it came and we were looking around the sky, several 12-14 year old sets of eyes said - "What's that little group of stars there?" Seeing where they were pointing, I knew it was the Pleiades, but, I was struggling to see only a few of them. Wish I'd started this hobby 40 years ago.
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Old 27-02-2008, 11:12 AM
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goober (Doug)
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That was a nice read, Eric, thanks. I sometimes have a colleague over from work with his 7 year old son. It's great seeing the reactions - it's always Saturn that sets them off.

I see six Pleiads from my backyard with my 42 year old 1x6mm binos.

That ISS pass is tonight at 20:27? Which direction is it coming from? I'll look out for it, thanks Eric!
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Old 27-02-2008, 12:43 PM
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erick (Eric)
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Same as Monday - coming from NW, leaving SE.

See attached
Attached Thumbnails
Click for full-size image (ISS track 27 Dec Melb.jpg)
33.8 KB11 views
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Old 27-02-2008, 02:14 PM
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JethroB76 (Jeff)
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Quote:
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1x6mm binos.
Thats some major aperture there Doug!
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Old 28-02-2008, 08:41 AM
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goober (Doug)
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Thats some major aperture there Doug!
Only eyeballs I have
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Old 28-02-2008, 11:24 AM
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erick (Eric)
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Duhh! I just worked it out. I was thinking, 42 years, that's an old set of bins! About as old as my original 7x50s


OK, anyone see anything over Melbourne? When I looked, heavy cloud horizon to horizon, so went back to other things.
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Old 28-02-2008, 12:00 PM
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goober (Doug)
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Quote:
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OK, anyone see anything over Melbourne? When I looked, heavy cloud horizon to horizon, so went back to other things.
Nah, clouded out and drizzling at 8:25pm for me.
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Old 29-02-2008, 02:36 PM
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So that is what I saw the other night, boy was it bright, but I didn't realise that it was the ISS.

Leon
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  #12  
Old 29-02-2008, 10:56 PM
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So that is what I saw the other night, boy was it bright, but I didn't realise that it was the ISS.

Leon
Only 300km away from us - straight up! They sure have bright headlights
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