Re: Laptops in the field (was Re: (IAAC) Re: Uranometria)
There are any number of programs that have this feature. The freeware
Cartes de Ciel, as well as the commercial Skycharts are 2 others that
I am familiar with. Also, for those of us who use Macs, there is a
small freeware program called "Red" which will do the same thing no
matter what program is running. It's available at:
>You can do the same with Starry Night Pro.
>----- Original Message -----
>From: "Mark Wilson" <firstname.lastname@example.org>
>Sent: 28 September 2001 02:13
>Subject: Re: Laptops in the field (was Re: (IAAC) Re: Uranometria)
>> I use a laptop in the field with several programs. I know at least one of
>> ***** them can turn the entire pc screen red to cut down on brightness.
>> Without ****** looking, I believe that one is skymap pro 7.
>> ----- Original Message -----
>> From: Jeffrey D. Gortatowsky <email@example.com>
>> To: <firstname.lastname@example.org>
>> Sent: Thursday, September 27, 2001 7:15 PM
>> Subject: Laptops in the field (was Re: (IAAC) Re: Uranometria)
>> > > I must admit, however, that I've never attempted to use a PC in the
>> > > field. It seems to me that the amount of light emitted by the
>> > > screen - even in red-mode - would preclude full dark adaptation.
>> > > I'd certainly be interested in hearing about anyone's experiences[...]
>> > >
>> > > Clear skies,
>> > > Don
>> > Hi Don!
>> > I place several layers of rubylith over the screen. I don't think my dark
>> > adaptation is hurt anymore than by a red flashlight of sufficient
>> > brillianceto illuminate your chart. But you may be right. I have not done
>> > an 'experiment'.
>> > My laptop will run on it's own battery for at least 2 hours (4 if I take
>> > out the CD and buy a 2nd internal battery). I also use a heavy 34amp/hr
>> > "jumpstart" like device with a small built-in inverter ($79). It'll go all
>> > night and recharge from the truck or an AC outlet. Or I can run it
>> > literally for nights at a time on a heavy deep cycle and the inverter.
>> > I have such a beast as well for multi-night star parties. I use a soft
>> > sided cooler that acts as a case for it as well as all cables and inverter
>> > [...]
>> > Clear, dark, and quiet skies,
>> > Jeff
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