Celestial Navigation

[iangrant]

The GHA penny has sort of dropped! now prehaps I can move onto declination.

Not quite ready to throw away the GPS yet!

Ian

 

[ChrisE]

I can lend you a spare astolabe, if this helps.

Chris

 

[boatmike]

Some say you are declining rapidly already..... And please tell Chris its an ASTROLABE, not an ASTOLABE....

 

[iangrant]

Chris, thanks

I've borrowed CN by Tom Cunliffe from Tome and am reading it again (and again). I'm just getting there so any other stuff will probably only confuse the issue!
It is bloody tuff learning from a book again, it's funny how reading and absorbing are two different things! - I'm gettin' too old!


Ian

 

[ChrisE]

Pendant!

 

[iangrant]

Now look 'ere matey with yer two keels, droppin' in like that all insultin' like - another word and I'll say catermerangues are for poofs


Ian

 

[Sybarite]

That's putting Das Boot in .....

John

 

[Das_Boot]

I am also doing celesetial nav. I dont trust the owners of the sattelites to keep them switched on. I have so far ignored Star sightings and am sticking with doing the noon sighting. It is difficult however to ever get one but keep trying. It gets a bit boring when you check your lat and long for the same place everyday. Learning the position of the stars in the northern hemisphere is great when I can see them.

 

[iangrant]

All the freeware stuff including the Almanac here


Ian

 

[wooslehunter]

I found a nice tool to generate my own excecises. Have a search around the web for Skymap Pro. This is essentially a star atlas. But you can set the observatory position and time and then read back the altitude of the bodies. The height is relative to the horizon so no need to account for dip but since it's designed to drive a telescope you do need to correct for refraction.

 

[Das_Boot]

Cheers I am using a german one I found onboard the math is the same but it runs out this year.

 

[boatmike]

Funny you should say that dearest.....

 

[iangrant]

Have you met weekend Julie? He's doin' a sewing course starting this weekend in Emsworth..

Ian

 

[boatmike]

MMMMMM Nice.... Spookily enough I just finished sowing up a hole in my fleece darling. Looks loooovely!

 

[Rowana]

[ QUOTE ]
Spookily enough I just finished sowing up a hole in my fleece darling.

[/ QUOTE ]

As long as you didn't get them round the wrong way ! !

/forums/images/graemlins/blush.gif /forums/images/graemlins/blush.gif /forums/images/graemlins/blush.gif

 

[tome]

[ QUOTE ]
Have you met weekend Julie? He's doin' a sewing course starting this weekend in Emsworth..

Ian

[/ QUOTE ]

No stopping me now mate, done the dodgers wheel cover next.

Had to laugh when I went to Hawke House marine for the vynil letters. Told him what we wanted, he took a sheet of vynil and just drew the shapes of the letters in biro around his templates and handed me the sheet to go and cut! I'd sort of expected a neat collection of 6 A's 2 M's and 2 Y's...

 

[iangrant]

Tee hee - out with the seamstress scissors then..

I've got a cockpit tent if you want to use it as a model?

Oh BTW did I leave my sextant on Amaya.

Ian

 

[tome]

I've already got a knackered cockpit tent ta, but decided it's quite an advanced task for now. Building up to it, mind!

I'll check for the sextant (any idea where you stowed it) and if found will return with pink cardie tomorrow . You and the ear flicker about?

 

[snowleopard]

[ QUOTE ]
I am also doing celesetial nav. I dont trust the owners of the sattelites to keep them switched on

[/ QUOTE ]

After recent postings here, I'm surprised you trust the owner of the other heavenly bodies to leave them switched on /forums/images/graemlins/wink.gif

 

[iangrant]

It's a grey moment I'm afraid - you know what they say - think hard about the last time you remember seeing the object and it won't be far from there. I remember seeing it on Amaya but then - blank, well I was a little feverish at the time (alcohol enduced 48 hour flu me thinks).

Yes I think the ear flicker will be out tomorow with me in tow, looks a bit wet and 'orrible to take her out this weekend - might slip out meself though sat/sun if a bronze or silver pass is offered...