Sun Gear - Revision history

Phkb: Updating BB links

2024-02-29T03:31:11Z

Updating BB links

Cholmondely: Added Phkb's "CommiesOrbitUpdate.oxz" fix

2024-02-05T18:48:57Z

Added Phkb's "CommiesOrbitUpdate.oxz" fix

Cholmondely: Added picture!

2023-02-25T20:23:50Z

Added picture!

Cholmondely: Added system data sheet

2023-02-25T20:00:04Z

Added system data sheet

Dybal: /* Sun properties */

2022-08-19T16:59:25Z

‎Sun properties

Cholmondely: /* Advanced System Data MFD */ Tweaks!

2021-07-16T13:18:24Z

‎Advanced System Data MFD: Tweaks!

Cholmondely: /* Sun Data info page */ Link!

2021-07-16T12:45:53Z

‎Sun Data info page: Link!

Cholmondely: Added a couple of pictures.

2021-06-15T08:11:08Z

Added a couple of pictures.

Cholmondely: Added Astrolibrary & Advanced System Data MFD

2021-05-06T22:48:31Z

Added Astrolibrary & Advanced System Data MFD

Cholmondely: Links & Tags

2021-02-22T16:43:12Z

Links & Tags

@@ Line 162: / Line 162: @@
 == Problem: positions of solar stations ==
-The coding used to move the sun further from the main planet can lead to conflicts with some of the other methods for placing stations near the sun - or other such. This is especially problematic for Commies OXP ([[SLAPU]]s & [[CZGF]]s) as well as [[Hathor Trade Station]]s and a few others. See [http://www.aegidian.org/bb/viewtopic.php?f=4&t=21298 Bizarre locations of Stranger's World Stations] for more on this.
+The coding used to move the sun further from the main planet can lead to conflicts with some of the other methods for placing stations near the sun - or other such. This is especially problematic for Commies OXP ([[SLAPU]]s & [[CZGF]]s) as well as [[Hathor Trade Station]]s and a few others. See [https://bb.oolite.space/viewtopic.php?f=4&t=21298 Bizarre locations of Stranger's World Stations] for more on this.
 === Solution ===
 [[User:Phkb|Phkb]] has crafted an AddOn for Sun Gear & Commies which fixes the issue for them: [https://app.box.com/s/xtdmsyy09o31pmicov0xvx2azhr69s7g CommiesOrbitUpdate.oxz] - just add this in to your regular cocktail mix of oxps, shake and enjoy!
@@ Line 173: / Line 173: @@
 == Links ==
-*Bulletin Board [http://www.aegidian.org/bb/viewtopic.php?f=4&t=19973 discussion]
+*Bulletin Board [https://bb.oolite.space/viewtopic.php?f=4&t=19973 discussion]
 *[[Strangers World]]

@@ Line 160: / Line 160: @@
 == Dependencies ==
 *[[Habitable Main Planets]] as mentioned above.
 == Credits ==
 *Wildblood - Distant Suns OXP/OXZ: initial concept of custom sun population & spectroscope script.
 *Tch - Tch_Russian_Systems OXP: idea of using RGB model for sun color instead simple named colors.

@@ Line 151: / Line 151: @@
   Gas giant - planet like Jupiter or Saturn
 == System Data Sheet ==
 This is accessed while docked through the Informational section on the [[F4 page (ship and system interfaces)]]. It gives the above information.

@@ Line 150: / Line 150: @@
   Ice giant - planet like Uranus or Neptune
   Gas giant - planet like Jupiter or Saturn
 === "Planet Data" / "Lunar Data" Interface ===

@@ Line 68: / Line 68: @@
 Sun mass and chemical composition are initial parameters in theory of star evolution. Having sun mass and chemical composition you’ll predict sun radius and temperature. Having sun radius and temperature you’ll calculate sun luminosity. Having sun luminosity you’ll calculate inner and outer radius of sun habitable zone. And having radius of main planet orbit in centre of habitable zone you’ll calculate main planet orbital period (local year). This is how matters stand in theoretical astrophysics and celestial mechanics.
-In astronomy we are usually know star magnitude and color. Well, star color and temperature are strongly correlated parameters (black body radiation approximation), so knowing star color you’ll know star temperature. For nearest stars you’ll also have distance measured directly with some error margins. Based on magnitude and distance you’ll calculate star luminosity. Based on star luminosity and temperature you’ll calculate star radius. In case of nearest binary stars with measurable orbital periods like Alpha Centauri you can estimate masses of components. In case of distant star you have only directly measured star magnitude and color, maybe sometimes distance with more wide error margins. You can estimate missing parameters based on known mean properties of stars of the same spectral class. This is how matters stand in real astronomy.
+In astronomy we usually know star magnitude and color. Well, star color and temperature are strongly correlated parameters (black body radiation approximation), so knowing star color you’ll know star temperature. For nearest stars you’ll also have distance measured directly with some error margins. Based on magnitude and distance you’ll calculate star luminosity. Based on star luminosity and temperature you’ll calculate star radius. In case of nearest binary stars with measurable orbital periods like Alpha Centauri you can estimate masses of components. In case of distant star you have only directly measured star magnitude and color, maybe sometimes distance with more wide error margins. You can estimate missing parameters based on known mean properties of stars of the same spectral class. This is how matters stand in real astronomy.
-And this is how matters stand in Ooniverse. We have only sun radius in planetinfo.plist, not sun mass nor temperature per se. But we can estimate missing parameters based on known properties of stars of the same radius.
+And this is how matters stand in Ooniverse: we have only sun radius in planetinfo.plist, not sun mass nor temperature per se. But we can estimate missing parameters based on known properties of stars of the same radius.
-Just for historical reasons I am using not Sun analog as standard candle, but sun of spectral class G0V (temperature 6000 K).
+Just for historical reasons I am not using Sun analog as standard candle, but sun of spectral class G0V (temperature 6000 K).
 *If you have sun with radius 0.96 of standard candle – this is our Sun twin: spectral class G2V, temperature 5800 K, luminosity 0.80, mean radius of habitable zone 0.90.
@@ Line 79: / Line 79: @@
 And so on.
-This is simplified and slightly shifted data – you’ll see in astronomy handbooks temperature of M0V red dwarf color 3750 K, not 4000, and temperature of K0V orange dwarf 5240 K, not 5000. Sun Gear is not intended for generating publications in Astrophysical Journal. :)
+This is simplified and slightly shifted data – you’ll see in astronomy handbooks temperature of M0V red dwarf color 3750 K, not 4000 K, and temperature of K0V orange dwarf 5240 K, not 5000 K. Sun Gear is not intended for generating publications in Astrophysical Journal. :-)
 *Radius of standard candle is 1,000,000 m in game units. So sun radii covers range from 460,000 m (M3.5V red dwarf) to 1,120,000 m (F6 white star). Sun analog (G2V) has radius 960,000 m in game units (radius of our Sun in real reality is 696,000 km).
 *Sun radii, temperatures and masses distribution is pseudo-randomly smoothed to avoid discrete gaps in data. Every sun has unique radius, temperature and mass.

@@ Line 138: / Line 138: @@
   Main planet period in days
   Sun distance
-  Solar wind flux: important for [[Hard Way]]
+  [[Solar Wind Flux|Solar wind flux]]: important for [[Hard Way]]
 === Planetary System Data info page ===

@@ Line 1: / Line 1: @@
 == Overview ==
 This OXP aims to make the suns in the solar systems more realistic. It also implements dynamic solar flares - and also a solar wind model allowing refueling with fuel scoops in space reasonably close to the sun (without needing to skim the sun)!
@@ Line 125: / Line 127: @@
 Advanced System Data MFD provides custom system info on two pages.
+[[File:Planetary System Data.png|thumb|right|Advanced System Data MFD: Planetary system data]]
 === Sun Data info page ===

← Older revision		Revision as of 22:48, 6 May 2021
Line 116:		Line 116:

	Magnetospheres of celestial bodies are simulated. Solar wind density is dropped to zero level near planets and moons.		Magnetospheres of celestial bodies are simulated. Solar wind density is dropped to zero level near planets and moons.
		+
		+	== AstroLibrary ==
		+
		+	AstroLibrary is a library, providing astronomic (oostronomic may be?) functions to calculate sun spectrum, main planet temperature (used in System Makeup OXP to set planet texture), main planet orbital period & planet and moon parameters (used in Planetary Systems OXP), solar wind density (used in Hard Way OXP to collect fuel) etc.
		+
		+
		+	== Advanced System Data MFD ==
		+
		+	Advanced System Data MFD provides custom system info on two pages.
		+
		+	=== Sun Data info page ===
		+
		+	Sun catalog number (galaxy sector and system ID)
		+	Sun spectral class
		+	Sun radius
		+	Sun mass
		+	Sun luminosity
		+	Solar activity
		+	Main planet period in days
		+	Sun distance
		+	Solar wind flux: important for [[Hard Way]]
		+
		+	=== Planetary System Data info page ===
		+	This provides list of additional planets in solar system. It displays only planet orbit radii in OU and planet class:
		+
		+	Dwarf terra - planet like Pluto or Ceres
		+	Miniterra - planet like Mercury
		+	Subterra - planet like Mars
		+	Terra - planet like Earth or Venus
		+	Superterra - planet like ... hmm, we have no such example in our Solar System. Gliese 667 Cc maybe?
		+	Ice giant - planet like Uranus or Neptune
		+	Gas giant - planet like Jupiter or Saturn

	== Dependencies ==		== Dependencies ==

@@ Line 105: / Line 105: @@
 == A little more about habitable zones ==
-Sun Gear calculates equilibrium temperature of main planet, providing this information for my other OXPs. System Makeup OXP, for example, uses this calculated main planet temperature to select planet texture. In the previous Sun Gear iterations I was using simple formula for such calculation, with no account taken of greenhouse effect. To generate various climate conditions I was using rule “large planets in systems of hot suns a bit closer to inner edge of habitable zone, small planets in systems of cold red dwarves – a bit closer to outer edge” in combination with pseudo-random distance offsets. Now Sun Gear taking greenhouse effect into account. Just rough formula, of course, based on estimation of atmosphere mass as function of planet radius. So large main planets in systems of white and yellow stars has more warm climate as compared with small main planets in systems of orange and red dwarves not due to more hot sun per se but due to more dense atmospheres providing more evident greenhouse effect.
+Sun Gear calculates equilibrium temperature of main planet, providing this information for my other OXPs. '''System Makeup OXP''', for example, uses this calculated main planet temperature to select planet texture. In the previous Sun Gear iterations I was using simple formula for such calculation, with no account taken of greenhouse effect. To generate various climate conditions I was using rule “large planets in systems of hot suns a bit closer to inner edge of habitable zone, small planets in systems of cold red dwarves – a bit closer to outer edge” in combination with pseudo-random distance offsets. Now Sun Gear taking greenhouse effect into account. Just rough formula, of course, based on estimation of atmosphere mass as function of planet radius. So large main planets in systems of white and yellow stars has more warm climate as compared with small main planets in systems of orange and red dwarves not due to more hot sun ''per se'' but due to more dense atmospheres providing more evident greenhouse effect.
 == Solar flares and solar wind ==
@@ Line 113: / Line 113: @@
 Corona flare is controlled dynamically by script. Most of time sun of system is in quiet state (corona_flare random value in range 0.1…0.2), but sometimes solar flares occurs and corona_flare rises randomly up to 0.5 (yes, I know, in reality it is NOT linear correlation between solar corona size and solar flares!). As a rule flare frequency increases from yellow to red stars. Peculiar suns with "solar activity" in system description has more frequent flares with higher magnitudes (corona_flare rises up to 1.0 in case of "deadly solar activity").
-Solar wind model is implemented. Solar wind allows to refuel ship without sunskimming (in some cases refuelling is possible en route from witchpoint to main planet). More detailed description of this feature will be in relevant topic.
+Solar wind model is implemented. Solar wind allows to refuel ship without sunskimming (in some cases refuelling is possible en route from witchpoint to main planet). More detailed description of this feature will be found in the [[Hard Way]] OXP.
 Magnetospheres of celestial bodies are simulated. Solar wind density is dropped to zero level near planets and moons.
 == Credits ==
@@ Line 128: / Line 131: @@
 *[[Strangers World]]
 [[Category:Stranger's World]]