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Search: Posts Made By: mithrandir
Forum: General Chat Today, 03:00 PM
Replies: 8
Views: 219
Posted By mithrandir
If you look at the HDOP and VDOP figures from...

If you look at the HDOP and VDOP figures from your GPS the number is measured in units of the nominal accuracy of the device. Most of mine are only quoted to give a figure within 2 or 5m, but since...
Forum: General Chat Today, 09:52 AM
Replies: 1
Views: 108
Posted By mithrandir
Is it really from Terry's account or just some...

Is it really from Terry's account or just some cretin using his email address and an open relay. I've had that happen to me several times.

You need to look closely at all the "received" lines in...
Forum: ATM and DIY Projects 24-11-2014, 06:16 PM
Replies: 9
Views: 279
Posted By mithrandir
Those digital calipers are useful. My son and I...

Those digital calipers are useful. My son and I both find you need to take out the battery when not in use as the switch only turns off the display and the battery goes flat pretty quickly.
Forum: Astrophotography and Imaging Equipment and Discussions 24-11-2014, 01:02 PM
Replies: 14
Views: 338
Posted By mithrandir
The street lights here were blacked out a couple...

The street lights here were blacked out a couple of nights ago. It made no difference since there's so much LP from the rest of Sydney.
Forum: General Chat 22-11-2014, 10:16 PM
Replies: 11
Views: 203
Posted By mithrandir
Iridium flares come from the Iridium...

Iridium flares come from the Iridium communications satellites. Other satellites can flare (eg tumbling ones) but not with the predictability of these. The flares come from sunlight reflecting off...
Forum: Beginners Talk 13-11-2014, 09:44 AM
Replies: 16
Views: 328
Posted By mithrandir
The compass will be affected by any magnetic...

The compass will be affected by any magnetic material within a few metres - like steel telescope tubes or mounts.
Forum: Astrophotography and Imaging Equipment and Discussions 12-11-2014, 06:55 PM
Replies: 46
Views: 1,721
Posted By mithrandir
The bwallan in that thread with all the a7s...

The bwallan in that thread with all the a7s knowledge is the guy I've been quoting. I hope at some stage to be well enough to visit him in Alberta.
Forum: Beginners Talk 12-11-2014, 02:08 PM
Replies: 16
Views: 328
Posted By mithrandir
Try ebay for "Globalsat ND-105C GPS USB" or...

Try ebay for "Globalsat ND-105C GPS USB" or "GlobalSat BU-353 S4 USB GPS"

The price has gone up from the model ND-100S which I have but still far cheaper than Garmin (and I have two of those too).
Forum: Celestial and Astronomical Events 12-11-2014, 01:59 PM
Replies: 31
Views: 1,083
Posted By mithrandir
Rosetta live feed from ESA

http://rosetta.esa.int/
Forum: Beginners Equipment Discussions 11-11-2014, 10:59 PM
Replies: 10
Views: 235
Posted By mithrandir
Trev, you might be able to increase the RAM. My...

Trev, you might be able to increase the RAM. My netbook arrived with 1GB but supports 2GB and adding the extra 1GB made quite a difference.
Forum: Beginners Talk 11-11-2014, 10:57 PM
Replies: 16
Views: 328
Posted By mithrandir
Gabriel, you can look up the location of any...

Gabriel, you can look up the location of any Australian location with an official place name at http://www.ga.gov.au/map/names/

It won't be as good as you'd get from a GPS but will get you in the...
Forum: General Chat 11-11-2014, 06:15 PM
Replies: 5
Views: 141
Posted By mithrandir
We were just walking out of the SAN (Sydney...

We were just walking out of the SAN (Sydney Adventist Hospital) at 11am when the minute silence notification came over the PA.
Forum: Beginners Talk 11-11-2014, 03:32 PM
Replies: 16
Views: 328
Posted By mithrandir
Just don't trust the scale on the mount to be...

Just don't trust the scale on the mount to be accurate. You should check it with another device like a digital level.
Forum: General Chat 11-11-2014, 11:40 AM
Replies: 20
Views: 319
Posted By mithrandir
Happy Birthday Andrew. My better half's...

Happy Birthday Andrew. My better half's brother-in-law has exactly 33 years head start on you.
Forum: Deep Space 10-11-2014, 10:32 AM
Replies: 18
Views: 355
Posted By mithrandir
Mike, you can download Aladin (it needs Java)...

Mike, you can download Aladin (it needs Java) from http://aladin.u-strasbg.fr/aladin.gml (or run it online) and it will do all the hard work getting the data from Simbad.

You open your...
Forum: Deep Space 10-11-2014, 10:25 AM
Replies: 18
Views: 355
Posted By mithrandir
Are your two images oriented the same way? A...

Are your two images oriented the same way?

A quick Aladin+Simbad search only shows up a few blue star candidates - one B8 and six F[568]
Forum: Astrophotography and Imaging Equipment and Discussions 09-11-2014, 06:12 PM
Replies: 46
Views: 1,721
Posted By mithrandir
Brian must have noticed my post. Here's the reply...

Brian must have noticed my post. Here's the reply he sent me, with a couple of edits for correct typos:
Forum: Beginners Equipment Discussions 08-11-2014, 09:22 PM
Replies: 14
Views: 496
Posted By mithrandir
How useful a 1mW laser is depends on the light...

How useful a 1mW laser is depends on the light pollution. Around here they are next to useless. It takes about 10mW to provide a line visible to anyone more than arm's length from the person holding...
Forum: Astrophotography and Imaging Equipment and Discussions 08-11-2014, 09:05 AM
Replies: 46
Views: 1,721
Posted By mithrandir
Very funny. Sony seem to have no plans to release...

Very funny. Sony seem to have no plans to release a proper SDK for the alpha series so you can do the sort of automation you can with Canon. You can control if over wifi so it might be possible to...
Forum: Astrophotography and Imaging Equipment and Discussions 08-11-2014, 09:01 AM
Replies: 46
Views: 1,721
Posted By mithrandir
Here's a link to some of Brian's images with an...

Here's a link to some of Brian's images with an AT8RC on Google+ https://plus.google.com/photos/116260312230579398213/albums/6076178317417761713

The RRP in Oz is about $2400 body only but I got a...
Forum: Astrophotography and Imaging Equipment and Discussions 07-11-2014, 10:51 PM
Replies: 46
Views: 1,721
Posted By mithrandir
I've got an unmodified a7s. It's low noise up to...

I've got an unmodified a7s. It's low noise up to ISO6400, reasonable up to 56000 and tops out at 409600 (yes that is four hundred and ninety six thousand) which lets you shoot handheld in almost...
Forum: General Chat 07-11-2014, 10:44 PM
Replies: 77
Views: 1,156
Posted By mithrandir
What is getting up everyone's nose is the...

What is getting up everyone's nose is the investors forcing intending resident buyers out of the market.

As said by various people, when we bought our first property (a unit) in 1976 it was $28K....
Forum: Astrophotography and Imaging Equipment and Discussions 07-11-2014, 10:25 PM
Replies: 2
Views: 309
Posted By mithrandir
From Sony's announcement: 172750

From Sony's announcement:

172750
Forum: General Chat 07-11-2014, 03:50 PM
Replies: 77
Views: 1,156
Posted By mithrandir
You obviously don't live in Sydney. For 3-4 times...

You obviously don't live in Sydney. For 3-4 times average earnings in most suburbs you can't buy a doghouse.

I'd have less of an issue with negative gearing if it only applied to new construction.
Forum: General Chat 06-11-2014, 12:41 PM
Replies: 9
Views: 288
Posted By mithrandir
I'm getting a bit blase about MRIs. I'm down for...

I'm getting a bit blase about MRIs. I'm down for my third one this year the week after next.
Showing results 1 to 25 of 500

 
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