Posts by hank

by hank
17.10.2007, 16:52
Forum: Ideas & News
Topic: stars.txt
Replies: 266
Views: 107423

Re: stars.txt

See my mail above. These refer to my datasets (visualbins & spectbins), didn't you know? These changes HAVE to be made via my PERL scripts that are in CVS. NO undocumented handicraft, please, after I worked for years to get the database properly documented... No, I didn't recall that there were...
by hank
17.10.2007, 16:41
Forum: Ideas & News
Topic: stars.txt
Replies: 266
Views: 107423

Re: stars.txt

The time consuming problem in this task is to find an objective criterion why to eliminate one orbit data set in favor of the other one about those few stars in question. Perhaps the duplicates could be removed to separate files (one for visual orbits and one for spectroscopic orbits), so that no d...
by hank
17.10.2007, 16:25
Forum: Ideas & News
Topic: stars.txt
Replies: 266
Views: 107423

Re: stars.txt

Cham wrote:Can't the binaries be corrected and updated on CVS ?

How would this be done? Who would do it?

I'm sure if corrected files were available there would be no problem getting them into CVS.

- Hank
by hank
16.10.2007, 17:06
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

The original purpose of this topic was to solicit volunteers to assist with Celestia development. (Programming skills helpful but not required.) So far we've heard from: Cham, rthorvald, ElChristou, phoenix, Hungry4info, yeus, Rassilon, BobHegwood Not a very long list. Anyone else out there willing ...
by hank
14.10.2007, 19:35
Forum: Physics and Astronomy
Topic: Quick question
Replies: 3
Views: 2349

Re: Quick question

I did a SIMBAD search on a star and under the 'flux' section, it told me: B 13.158 V 13.524 I 13.894 U 11.894 R 13.689 J 14.332 H 14.490 K 14.548 Now, if I understand correctly, V is visual magnitude. Are B, I, U, R, etc other wavelengths (IR, Ultraviolet, etc)? If so, what do each of them correspo...
by hank
13.10.2007, 20:04
Forum: Ideas & News
Topic: Unofficial Mac OS X build 2007-10-13
Replies: 20
Views: 12812

Re: Unofficial Mac OS X build 2007-10-13

...The main reason for this is because I want to change how opacity works so that the color is no longer automatically multiplied by alpha. Using a lower value of alpha to get a darker version of a color will no longer be feasible. Sorry, here is the answer to my question, but Chris could you expla...
by hank
13.10.2007, 19:56
Forum: Add-on development
Topic: Fictional star placement
Replies: 30
Views: 11115

Re: Fictional star placement

RA and Dec (with distance) are 3D coordinates. The map is 2D. You can't conclude that two stars have the same RA and Dec just because they lie on a line drawn from Sol on the map. But he can eliminate all but 2 possible placements (assuming he correctly converts his maps x,y co-ords to ra and dista...
by hank
13.10.2007, 03:11
Forum: Physics and Astronomy
Topic: The Fate of Project Constellation
Replies: 17
Views: 8378

Re: The Fate of Project Constellation

Over at the Planetary Society Weblog , Emily Lakdawalla reports on a presentation at the 39th meeting of the AAS Division of Planetary Sciences by Paul Abell from NASA's Johnson Space Center on the feasibility of a manned mission to a near-Earth object using the Crew Exploration Vehicle... The basic...
by hank
10.10.2007, 20:14
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

I hope you don't want to equalize the merits of people who made creative contributions to Celestia's code for > 5 years with some short-time efforts of users... So I don't see the sense of your at least for now remark... Fridger, My "at least for now" remark was just an indication that I didn't thi...
by hank
10.10.2007, 19:31
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

It might be a good idea to have a backup admin for the Celestia project at Sourceforge in any case. Agreed. It's an essential part of making Celestia development less bottlenecked by me (though I have no plans to leave the project). Would you be up for it, Hank? I note that you're also in Seattle--...
by hank
10.10.2007, 18:41
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

Chris, Hank suggested a Wiki for the following reason: I think it would be helpful if we could set up a Celestia development wiki somewhere that we could use to keep track of what needs to be done, who's doing what, and generally coordinate our development efforts going forward. - Hank The "we" he'...
by hank
10.10.2007, 18:26
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

I just created a wiki for Celestia on SourceForge Great! Thanks, Chris. I think it will help a lot. Maybe the SourceForge Wiki should focus on developer info, while the WikiBook should be more of a user's guide? Either that, or we should consolidate everything in one place or the other. I think the...
by hank
10.10.2007, 18:09
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

The admin of a SourceForge project has to configure and manage its Wiki. i.e. Chris for Celestia. A separate project would have a different admin. I was just thinking that having a different project with its own Wiki would avoid adding more administrative burden to Chris, leaving him more time for ...
by hank
10.10.2007, 01:06
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

Why not use a Wiki on SourceForge? Although the Celestia project itself does not currently have a Wiki, it seems reasonable to me that a separate project be created for this. Can a wiki be added to the Celestia project at Sourceforge? What would be the advantage of creating a separate project? - Hank
by hank
09.10.2007, 23:38
Forum: Celestia Users
Topic: What would be needed to go to a full 1.5.0 release?
Replies: 174
Views: 47158

Re: What would be needed to go to a full 1.5.0 release?

It seems that KDE projects use the phrase "The <program> developers" in their copyright notice, we could do the same and use "The Celestia developers" in the readme and about box. Sounds to me like a good model to follow. --Chris Sounds good to me, too. Particularly since I'm hopeful that the list ...
by hank
09.10.2007, 23:32
Forum: Celestia Users
Topic: Celestia development volunteers?
Replies: 156
Views: 52626

Re: Celestia development volunteers?

I think it would be helpful if we could set up a Celestia development wiki somewhere that we could use to keep track of what needs to be done, who's doing what, and generally coordinate our development efforts going forward.

- Hank
by hank
09.10.2007, 03:13
Forum: Add-on development
Topic: Fictional star placement
Replies: 30
Views: 11115

Re: Fictional star placement

Being it is a 2D map, what if I just use the RA and leave the DEC at "0"? Would that work? Thanks Tim To be clear, the three coordinates: RA, Dec and distance, are just one way of specifying a 3D location in space. It happens to be the one that Celestia uses. Another way is with galactic coordinate...
by hank
08.10.2007, 20:30
Forum: Add-on development
Topic: Fictional star placement
Replies: 30
Views: 11115

Re: Fictional star placement

I am using this map- http://www.civfanatics.net/uploads9/Star_trek_map2.jpg Thanks Tim It appears that your map is looking down from above the galactic pole. So it would allow you to determine distance and galactic longitude. If you had some way to determine galactic latitudes then you could conver...
by hank
08.10.2007, 18:13
Forum: Celestia Users
Topic: What would be needed to go to a full 1.5.0 release?
Replies: 174
Views: 47158

Re: What would be needed to go to a full 1.5.0 release?

I think the best way to prevent divisive competition and commercial exploitation of Celestia is to provide a high-visibility, commercial-quality, continuously-improving open source version of Celestia that is highly user-configurable and extensible to accommodate a wide variety of user needs and pre...
by hank
08.10.2007, 14:49
Forum: Physics and Astronomy
Topic: Why do things spin?
Replies: 22
Views: 9660

Re: Why do things spin?

Many components of the universe (moons, planets, stars, galaxies) spin. From my fairly mis-informed guess, I'm thinking these spins are due to the interaction of gravity, and frictional forces. Can someone with better insight explain the basic principles causing spins, or point me to an online refe...

Go to advanced search