Alternis Kerbol - Development thread

[NovaSilisko]

Damn it all. This is the bug I was talking about, when I launched this ship, this happened:

That's where it spawns. For no reason, at all. Console is vomiting nullrefs but I can't track down WHY it happens...

[Gojira]

It's tolerable. I'd probably laugh more than anything, like: "How did they get that thing ALL THE WAY OUT HERE?!"

[NovaSilisko]

Okay, finally got an acceptable temperature curve for Jool. You explode around 50 km up depending on how resilient your ship is. The atmosphere overall is higher but I might try to make it lower still. Something like 10km would be ideal...

[Gojira]

How would you change that?

[NovaSilisko]

How would you change that?

I don't even know. These are the temperature curve values right now:

I have absolutely no idea what any of these numbers mean, I just had the game spit out the default ones and tweaked the lower value, they're completely different from anything that the game actually does. It goes to something like -400 in the upper atmosphere then up to several thousand in the lower atmosphere, and I cannot comprehend or consider comprehending why.

[Gojira]

Just leave it then, figure it out later. Besides, given Jool's size and comparing it to Jupiter, I think 50km would be semi-realistic.

[NovaSilisko]

All right... getting stuff checked over and set up, hoping to release v0.000001 or whatever before christmas is over (I have several hours until it's over in Alaska so I should be good )

If this works well enough upon release, I'm taking a damn break from this. This has been a lot tougher than I anticipated/hoped.

Edited December 26, 2013 by NovaSilisko

[swiftgates24]

May I suggest releasing it at 11:59 PM GMT -12?

[NovaSilisko]

May I suggest releasing it at 11:59 PM GMT -12?

Nope! Begin Merry Christmas protocol! http://forum.kerbalspaceprogram.com/threads/63536-0-23-Alternis-Kerbol-Release-thread-v0-0-Mind-the-bugs

[team.leit]

Nope! Begin Merry Christmas protocol! http://forum.kerbalspaceprogram.com/threads/63536-0-23-Alternis-Kerbol-Release-thread-v0-0-Mind-the-bugs

I just went over and I am downloading right now. can't wait to see how it is!!!

[LaydeeDem]

Well I've been looking at your source code and it is MUCH cleaner than mine. Thanks for that.

[Krosulhah]

I just saw the jool-rise. And man it is BRILLIANT.

[Nephf]

I have some ideas for the medium version of this mod, the grey numbers are concrete sample values, that I meanly created with a randomizer:

• Kerbol
  Becomes an exact 10% scale of the RL sun
  Radius: 69634.2km
  Density: 14.08g/cm³
  Mass: 1.9891×10²⁸kg
  Surface Gravity: 274.0m/s²
  Rotation Period: ??? (192.62h)
  Axial Tilt: 0°-10° (7.25°)
  

  ---

  
  
• Moho
  Sub-Earth Barren Planet with high uncompressed density and superheated tenuous atmosphere
  Radius: 240-270km (254.64km)
  Density: 47-55g/cm³ (53.655g/cm³)
  Mass: 2.7216×10²¹-4.5346×10²¹kg (3.71085×10²¹kg)
  Surface Gravity: 3.15-4.15m/s² (3.820m/s²)
  Orbital Period: 25-30d (26.2233d)
  Inclination: 5°-10° (7.2911°)
  Eccentricity: ~0.2 (0.1921)
  Rotation Period: ??? (slow or in resonance to orbit) (17.4822d)
  Axial Tilt: 0°
  Surface Pressure: ~1mbar
  Scale Height: ???
  

  ---

  
  
• Eve
  Super-Earth Desert/Hell Planet with extreme dense atmosphere
  Radius: 750-830km (813.93km)
  Density: 72-85g/cm³ (78.167g/cm³)
  Mass: 1.2723×10²³-2.0358×10²³kg (1.76553×10²³kg)
  Surface Gravity: 15.1-19.7m/s² (17.787m/s²)
  Orbital Period: 65-75d (69.385d)
  Inclination: ~3° (3.4429°)
  Eccentricity: ~0 (0.009133)
  Rotation Period: ??? (87.7804d)
  Axial Tilt: ??? (174.8757°)
  Surface Pressure: ~100bar (113.437bar)
  Scale Height: ???
  

  ---

  
  
• Gilly
  Captured asteroid around Eve or comet/asteroid in Kerbol orbit (captured asteroid around Eve)
  Radius: <8km (6.88km)
  Density: ~20g/cm³ (19.15g/cm³)
  Mass: <4.29×10¹⁶kg (2.3406×10¹⁶)
  Surface Gravity: <0.045m/s² (0.0368m/s²)
  Orbital Period: 4-8d (172.154h)
  Inclination: >10° (18.1315°)
  Eccentricity: ~0.4 (0.3814)
  Rotation Period: ??? (8.1518h)
  Axial Tilt: ??? (7.902°)
  

  ---

  
  
• Kerbin
  Becomes an exact 10% scale of the RL Earth
  Radius: 637.81km
  Density: 55.15g/cm³
  Mass: 5.97219×10²²kg
  Surface Gravity: 9.81m/s²
  Orbital Period: 115.5d
  Inclination: 0°
  Eccentricity: <0.1 (0.01671)
  Rotation Period: 7.569d
  Axial Tilt: 23.44
  Surface Pressure: 1013mbar (21.0% O₂)
  Scale Height: ???
  

  ---

  
  
• Mun
  Becomes an exact 10% scale of the RL Moon
  Radius: 173.71km
  Density: 33.464g/cm³
  Mass: 7.3477×10²⁰kg
  Surface Gravity: 1.622m/s²
  Orbital Period: 8.6398d
  Inclination: 5.145° (to ecliptic)
  Eccentricity: <0.1 (0.0549)
  Rotation Period: 8.6398d
  Axial Tilt: 6.68° (1.543° to ecliptic)
  

  ---

  
  
• Minmus
  Becomes a large comet or a inner moon of Jool due to realism issues with the new Mun (large comet)
  Radius: --- (2.94km)
  Density: --- (6.2315g/cm³)
  Mass: --- (6.6550×10¹⁴kg)
  Surface Gravity: --- (5.128×10^-3m/s²)
  Orbital Period: --- (7821.06d)
  Inclination: --- (149.086°)
  Eccentricity: --- (0.9731)
  Rotation Period: ??? (56.284h)
  Axial Tilt: ??? (20.85°)
  

  ---

  
  
• Duna
  Sub-Earth Desert Planet tidally locked to its moon, Ike.
  Radius: 310-360km (343.63km)
  Density: 32.5-40 g/cm³ (37.88g/cm³)
  Mass: 4.0556×10²¹-7.8173×10²¹kg (6.4383×10²¹kg)
  Surface Gravity: 2.817-4.026m/s² (3.639m/s²)
  Orbital Period: 190-220d (208.842d)
  Inclination: ~2° (1.752°)
  Eccentricity: ~0.1 (0.09223)
  Rotation Period: 50-100h (58.5192h)
  Axial Tilt: 15°-30° (28.4974°)
  Surface Pressure: ~20mbar (21.68mbar)
  Scale Height: ???
  

  ---

  
  
• Ike
  Medium-sized rocky/icy moon of Duna
  Radius: 100-130km (114.98km)
  Density: 25-30g/cm³ (28.51g/cm³)
  Mass: 1.0472×10²⁰-2.7608×10²⁰kg (1.8152×10²⁰kg)
  Surface Gravity: 0.70-1.09m/s² (0.916m/s²)
  Orbital Period: 50-100h (58.5192h)
  Inclination: ~0° (0.175°)
  Eccentricity: ~0 (0.0061)
  Rotation Period: 50-100h (58.5192h)
  Axial Tilt: <5° (2.729°)
  

  ---

  
  
• Dres
  Rocky/icy dwarf-planet
  Radius: 70-90km (78.91km)
  Density: 20-22g/cm³ (20.47g/cm³)
  Mass: 2.8735×10¹⁹-6.7180×10¹⁹kg (4.2128×10¹⁹kg)
  Surface Gravity: 0.391-0.554m/s² (0.452m/s²)
  Orbital Period: 520-560d (537.714d)
  Inclination: 7°-10° (9.2931°)
  Eccentricity: ~0.12 (0.11715)
  Rotation Period: ??? (3.8123h)
  Axial Tilt: ??? (5.282°)
  

  ---

  
  
• Jool
  Gas Giant, density increased to legitimize large moons
  Radius: 7100-7400km (7275.33km)
  Density: 14-16g/cm³ (14.89g/cm³)
  Mass: 2.0989×10²⁵-2.7158×10²⁵kg (2.40225×10²⁵kg)
  Surface Gravity: 27.79-33.10m/s² (30.291m/s²)
  Orbital Period: 1300-1400d (1376.225d)
  Inclination: ~1° (1.071°)
  Eccentricity: <0.1 (0.3632)
  Rotation Period: <4h (3.3106h)
  Axial Tilt: ??? (4.487°)
  Surface Pressure: 1bar (atmosphere extends below "surface" until everything overheats)
  Scale Height: ???
  

  ---

  
  
• Laythe
  Large moon of Jool covered in large oceans, has much geologic activity (volcanoes)
  Radius: 350-400km (353.57km)
  Density: 35-40g/cm³ (36.38g/cm³)
  Mass: 6.2858×10²¹-1.0723×10²²kg (6.7352×10²¹kg)
  Surface Gravity: 3.42-4.47m/s² (3.596m/s²)
  Orbital Period: 13-15h (14.1463h)
  Inclination: ~0° (0.0761°)
  Eccentricity: ~0 (0.00478)
  Rotation Period: 13-15h (14.1463h)
  Axial Tilt: 0°
  Surface Pressure: >1bar (~10% O₂) (1240mbar (11.6% O₂))
  Scale Height: ???
  

  ---

  
  
• Vall
  Rocky/icy medium moon of Jool with redone surface
  Radius: 300-320km (304.72km)
  Density: 28-30g/cm³ (29.46g/cm³)
  Mass: 3.1667×10²¹-4.1177×10²¹kg (3.4883×10²¹kg)
  Surface Gravity: 2.35-2.68m/s² (2.507m/s²)
  Orbital Period: 26-30h (28.2926h)
  Inclination: ~0° (0.4342°)
  Eccentricity: ~0 (0.00843)
  Rotation Period: 26-30h (28.2926h)
  Axial Tilt: ???
  

  ---

  
  
• Tylo
  Rocky/Icy large moon of Jool with redone surface, maybe with some tenuous atmosphere
  Radius: 500-550km (506.15km)
  Density: 22-25 (24.46g/cm³)
  Mass: 1.152×10²²-1.742×10²²kg (1.3286×10²²kg)
  Surface Gravity: 3.08-3.84m/s² (3.461m/s²)
  Orbital Period: 52-60h (56.5851h)
  Inclination: ~1° (1.1152°)
  Eccentricity: ~0 (0.00109)
  Rotation Period: 52-60h (56.5851h)
  Axial Tilt: 0°
  Surface Pressure: ~1mbar
  Scale Height: ???
  

  ---

  
  
• Bop
  Medium captured asteroid around Jool
  Radius: <15km (12.85km)
  Density: 10-15g/cm³ (11.49g/cm³)
  Mass: <2.1206×10¹⁷kg (1.0221×10¹⁷kg)
  Surface Gravity: <0.063m/s² (0.0413m/s²)
  Orbital Period: ~40d (41.8661d)
  Inclination: 30°-40° (38.57°)
  Eccentricity: 0.15-0.25 (0.1948)
  Rotation Period: ??? (4.793h)
  Axial Tilt: ??? (15.653°)
  

  ---

  
  
• Pol
  Small captured asteroid around Jool
  Radius: <10km (8.516870811km)
  Density: 8-12g/cm³ (8.665g/cm³)
  Mass: <5.0265×10¹⁶(2.2423×10¹⁶kg)
  Surface Gravity: <0.034m/s² (0.0206m/s²)
  Orbital Period: ~60d (63.5879d)
  Inclination: 20°-30° (22.46°)
  Eccentricity: 0.2-0.3 (0.2813)
  Rotation Period: ??? (2.861h)
  Axial Tilt: ??? (10.279°)
  

  ---

  
  
• Eeloo
  Icy dwarf-planet in 3/2 resonance with Jool
  Radius: 100-150km (118.0798658km)
  Density: 20-23g/cm³ (20.264526g/cm³)
  Mass: 8.3776×10¹⁹-3.2515×10²⁰(1.3975×10²⁰kg)
  Surface Gravity: 0.56-0.96m/s² (0.669m/s²)
  Orbital Period: 1950-2100d (2064.338d)
  Inclination: 12°-17° (15.551°)
  Eccentricity: 0.25-0.3 (0.2782)
  Rotation Period: ??? (16.702h)
  Axial Tilt: ??? (94.175°)
  

All numbers are only of a suggestive nature and mainly derive from guessing the radius and the density of the bodies. Therefore other numbers as the actual mass can variate strongly. Since the rotation of non-locked bodies doesn't affect the system and are more or less totally random, I didn't suggested any boundries for them.

For the scale height of the atmosphere I've currently no conclusive idea of how to make it in a good fashion, so it fits the overal shape.

Ideas and constructive criticism are welcome

NICE!!!!!!! Really good job, you did a lot af work checking things out!

[DisarmingBaton5]

I've been trying this out and am really liking the warm lighting. I need to find out how to do this in my other install...

[blackheart612]

The warm lighting and the dark nights are really awesome. If only they could be on a non-alternis KSP. lol

[stefan1114ever]

Is there any new news? Since this thread isn't being used for two weeks...

[LostElement]

There is a problem with pol and bop. I tried to go to pol, and everytime I timewarp down below 1200 meter, my ship just explodes. Bop has this in several areas but you could tell it was near where the kraken is.

[DasBananenbrot]

Is there any new news? Since this thread isn't being used for two weeks...

Are you serious? This mod has it's thread in release section since the last posts were made here.....

[Ristse]

here is an idea! Make Eve Bright orange! it would contrast Beutifily! also have moho orbit eve as a moon and move eve closer to Kerbol (about halfway between moho and eve orbits) Plus make eve VERY flat and barren pretty much make it a cloudy desert with small pools of purple liquid as geysers or something. Anyways this mod looks AMAZING! thanks -Ristse