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  #1  
Old 14-03-2014, 11:11 AM
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mental4astro (Alexander)
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Blue Mountains - Katoomba Airfield 29th March

Hi all,

The Airfield is kindly being made available to us on the 29th of March.

It's been a while since we've had access to the Airfield, so I'm hoping for a great night too.

If you haven't been to the Airfield before, you will be most welcome to join us. If you don't have a scope, no problem either - it is a great chance to see many different types of instruments, small and large, simple and complex, and what the heavens look like through the different scopes.

If you feel that your scope is 'inadequate', please do not hesitate to bring it! The sky here is brilliant (1000m above sea level, making the Airfield one of the highest observing areas close to Sydney) and it will be a great chance to give that scope a good workout. You learn a lot from the people there and you'll be learn how to get the most out of your scope and gear.

Even if all you have is a pair of binos, come and bring them too! Binoculars are a fantastic bit of gear, and their wide field of view offers views that large scopes just cannot give for all their aperture grunt.

This is also a good chance to suss out the condition of your gear before the IIS Astro Camp next month. Blow out cobwebs, re-familiarize yourself with your gear, iron out bugs, whatever, so you are not left out of sorts at the Astro Camp.

Access to the Airfield is via Medlow Bath, the first village west of Katoomba. At Medlow Bath's only set of lights, turn into Railway Parade. Then it's left into Rutland Rd that becomes Grand Canyon Rd. The Airfield is 4km from the Rutland Rd turn off. Note that the last 3km is unsealed and rain can cause nasty erosion of the road surface. While the road is occasionally regraded, it is still advisable to take it easy along here. It is an easy 2WD road, just use caution.

On entering the Airfield, turn into the left hand track and follow it past the 'No Entry' sign - there is no access to the observing area by going straight ahead. From here, turn right up the hill past the various buildings to the observing area. The pictures below show area maps and the location of the observing slab on the main runway.

The Airfield is totally BYO everything. There is no power available. There are loos for the ladies and kids. The office building also has a combustion heater for those freezing winter nights. We are also welcome to stay overnight - there is no quitting time, that is upto you when you've had enough. But we can use the office building for some shut eye as there are a few sofas there to crash on.

Just some notes: Come rugged up! It gets very cold up there, even during summer. Bring plenty of layers - if you've got them you can shed them, if you don't have them you will freeze. Bring a red-light torch. Red light causes the least amount of disruption to our dark adapted eyes. If you don't have a red-light torch, two, three or four layers of red cellophane over the torch face will do the trick. Cellophane is readily available from $2 shops, newsagents and even florists.

Last note, the hat gets passed around for the slab of Rod's preferred brew as a gift to say thanks for using his Airfield.

Any questions, just ask,

Mental.
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  #2  
Old 14-03-2014, 11:35 AM
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AG Hybrid (Adrian)
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Good to hear that Rod is recovering. Don't forget everyone to bring a fiver to contribute to the slab of beer we give Rob for access to his airfield.
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Old 14-03-2014, 12:50 PM
linstar88 (Linda and Guy)
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Hey gang,
I'll try to head out there, work and weather permitting. Thanks for chasing access here Alex looks like a really good spot to set up. Will bring the 12" if all goes well.

Guy
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Old 14-03-2014, 06:34 PM
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AstroJason (Jason)
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Great to hear Rod has been getting better. Really looking forward to this one and will likely stay all night if the weather is good to us.
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  #5  
Old 15-03-2014, 08:38 AM
jasonghaby (Jason)
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will be my first time at the airfield. really excited about this!!

Hopefully the weather plays nice.
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Old 16-03-2014, 05:06 AM
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i gota go.I haven't been before.......
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Old 16-03-2014, 03:53 PM
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killswitch (Edison)
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This ones long due.. ill be there
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Old 17-03-2014, 09:57 AM
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mental4astro (Alexander)
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For those of you coming to the Airfield for the first time and are using a sat. nav. system, some systems have the Airfield labelled as Katoomba Airport. If you put in Katoomba Airfield it will tell you no such place exists, and that you are a dill for entering the wrong address.

I'm hoping to be able to get to the Airfield quite early this time around, an hour or two before sunset. I've got a few things to do before nightfall, so I'm hoping to be there around 5pm. Normally we kick things of before sunset.

If you do find yourself there early and no other astro nuts are around, please announce yourself to the Airfield manager, Rod, to let him know your intensions for the astro viewing. There are some very expensive aircraft kept there which are jealously guarded. This last summer has seen the Airfield be the centre of action for the aircraft firefighting efforts. While the immediate threat has somewhat eased of bushfires, a helicopter has been based at the Airfield all summer long incase things start again.
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Old 22-03-2014, 10:02 PM
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Glad to hear Rod is recovering well.

Looking forward to the night out, the weather better buck it's ideas up cos it's been crap round here lately
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Old 22-03-2014, 10:31 PM
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mithrandir (Andrew)
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Quote:
Originally Posted by mental4astro View Post
For those of you coming to the Airfield for the first time and are using a sat. nav. system, some systems have the Airfield labelled as Katoomba Airport. If you put in Katoomba Airfield it will tell you no such place exists, and that you are a dill for entering the wrong address.
Or you could enter the co-ords.
The entrance from Grand Canyon Rd is at 33:40:6.36S 150:19:1.78E.
The "Observing Pad" is at 33:40:5.55S 150:19:8.86E
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Old 27-03-2014, 09:24 AM
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AG Hybrid (Adrian)
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I'm not liking our odds right now.
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Old 28-03-2014, 09:13 AM
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B*gger. Looks like I'm taking my daughter to the Lego movie instead...
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Old 28-03-2014, 04:11 PM
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Cripes, the forecast is for another soggy week.
Making other plans.
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Old 28-03-2014, 04:12 PM
icytailmark (Mark)
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Can i bring my C14? Id come if it was longer then 1 night.
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Old 28-03-2014, 04:28 PM
Wavytone
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A C14... would make an impressive rain gauge at the moment.
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Old 28-03-2014, 06:04 PM
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The upshot is. The moon will still be quite small next Saturday too.
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Old 28-03-2014, 06:35 PM
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andyc (Andy)
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Can't make it this week - went and qualified for the matchplay finals at the golf club and the scheduled match time is too late to drive up afterwards. But... If there was any hope of better weather next weekend I'd be tempted! The scope's gathering a bit of dust and no photons just now
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Old 28-03-2014, 08:45 PM
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Is this rain ever going to stop?
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  #19  
Old 28-03-2014, 10:26 PM
Wavytone
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Quote:
Originally Posted by Camelopardalis View Post
Is this rain ever going to stop?
LOL... Dunk the weather here does everything in extremes, compared to the UK. Read up on El Nino and La Nina.

For example in the 1980's we had the longest run of clear weather for stargazing in my memory, perhaps 7 years of blisteringly clear blue skies and utterly predictable observing nights month after month - it was a record drought BTW. 2000-2005 (another drought) comes close - Goulburn ran dry and and Sydney was running dangerously low on water (4 months supply from memory) to the point we had to build a desalination plant just in case it didn't rain. And sure enough as the plant came on line, it did rain and went into a La Nina (wet) cycle.

The snag is, here, droughts usually end with a bang - literally rain for a week or two causing major inland floods - followed by a year or two of soggy weather on the coast.

The other period that comes to mind is the "long wet" of 1989-1991 which lasted 18 months. There were 26 weekends in a row rained out, the rest overcast, and some (like me) sold their astro gear and simply waited, knowing that by the time it cleared up, the technology will have moved on significantly - or take the opportunity to build a new scope if you are so inclined.

The alternative is move to somewhere like the Nullarbor...

In NSW there are three distinct phenomena that feed cloud in...
- cyclones off NW western Australia tend to produce long tails of cloud that will stream over central and southern NSW, usually short-lived;
- subtropical depressions (lows) around the queensland border frequently produce streams of cloud that come this far south (and produce lasting rain);
- further south, the so-called "east coast lows" tend to form anywhere from the Victorian border to the latitude of Sydney. Forming off the coast, they produce a southerly airflow on the surface which invariable means a solid cloud deck, and usually rain.

The latter two are effectively large eddies that tend to stay stuck to the coastline for many days or weeks, pushing a southerly airflow on the surface which creates a solid cloud deck inland and producing coastal rain - until a great big fat high over central australia finally shoves them off to New Zealand. We are under this influence now, and the trouble is that being autumn, the sun no longer has enough heat to create a high pressure system large and strong enough to push this soggy airmass offshore.

Last edited by Wavytone; 28-03-2014 at 10:53 PM.
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Old 29-03-2014, 09:07 AM
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Interesting stuff, thanks! No kidding about the extremes
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