🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.54 AU - 0.72 AU

Year: 323 Days

Day: 27.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.3

Radius: 10.3

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.61 AU - 0.91 AU

Year: 428 Days

Day: 13.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 22,590,075 km

• M1: 128,056 km (0.086 R)
• M2: 463,454 km (0.081 R)
• M3: 869,762 km (0.032 R)
• M4: 1,285,046 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.3

Radius: 8.8

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.4 AU - 3.54 AU

Year: 3305 Days

Day: 11.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 22,590,075 km

• M1: 109,506 km (0.092 R)
• M2: 616,642 km (0.104 R)
• M3: 955,930 km (0.103 R)
• M4: 1,268,590 km (0.058 R)
• M5: 1,809,386 km (0.116 R)
• M6: 2,338,215 km (0.034 R)
• M7: 3,050,450 km (0.107 R)
• M8: 4,512,021 km (0.054 R)
• M9: 5,741,716 km (0.109 R)
• M10: 7,060,571 km (0.115 R)
• M11: 7,396,268 km (0.079 R)
• M12: 8,366,710 km (0.068 R)
• M13: 11,038,827 km (0.097 R)
• M14: 12,479,305 km (0.09 R)
• M15: 14,329,531 km (0.064 R)
• M16: 16,250,069 km (0.119 R)
• M17: 17,995,577 km (0.101 R)
• M18: 19,682,293 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.2

Radius: 11.7

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.63 AU - 4.87 AU

Year: 6684 Days

Day: 7.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 22,590,075 km

• M1: 145,708 km (0.113 R)
• M2: 642,822 km (0.071 R)
• M3: 1,347,428 km (0.119 R)
• M4: 2,205,821 km (0.047 R)
• M5: 3,092,188 km (0.112 R)
• M6: 4,551,964 km (0.118 R)
• M7: 5,158,583 km (0.076 R)
• M8: 5,917,194 km (0.088 R)
• M9: 6,289,094 km (0.111 R)
• M10: 7,538,835 km (0.117 R)
• M11: 9,530,282 km (0.036 R)
• M12: 14,769,499 km (0.084 R)
• M13: 16,165,396 km (0.117 R)
• M14: 16,895,584 km (0.099 R)
• M15: 18,925,926 km (0.083 R)
• M16: 20,417,716 km (0.105 R)
• M17: 23,888,237 km (0.104 R)
• M18: 24,315,788 km (0.102 R)
• M19: 25,098,184 km (0.061 R)
• M20: 25,987,245 km (0.077 R)
• M21: 28,684,045 km (0.099 R)
• M22: 31,255,932 km (0.058 R)
• M23: 34,627,868 km (0.092 R)
• M24: 39,889,225 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.5

Radius: 12.8

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.44 AU - 5.9 AU

Year: 8717 Days

Day: 5.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,590,075 km

• M1: 159,322 km (0.045 R)
• M2: 617,540 km (0.099 R)
• M3: 1,107,174 km (0.031 R)
• M4: 1,729,202 km (0.116 R)
• M5: 2,718,493 km (0.111 R)
• M6: 3,509,716 km (0.114 R)
• M7: 4,033,607 km (0.067 R)
• M8: 4,632,747 km (0.105 R)
• M9: 5,419,033 km (0.08 R)
• M10: 7,644,152 km (0.098 R)
• M11: 10,625,787 km (0.045 R)
• M12: 12,127,151 km (0.082 R)
• M13: 12,535,105 km (0.051 R)
• M14: 17,940,375 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.5

Radius: 7.4

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.49 AU - 11.21 AU

Year: 19960 Days

Day: 17.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 22,590,075 km

• M1: 106,214 km (0.08 R)
• M2: 493,673 km (0.075 R)
• M3: 747,690 km (0.092 R)
• M4: 1,390,363 km (0.085 R)
• M5: 1,777,522 km (0.07 R)
• M6: 2,460,137 km (0.08 R)
• M7: 5,705,214 km (0.114 R)
• M8: 6,050,336 km (0.114 R)
• M9: 6,782,468 km (0.118 R)
• M10: 7,663,749 km (0.119 R)
• M11: 8,421,911 km (0.119 R)
• M12: 10,535,131 km (0.069 R)
• M13: 12,462,400 km (0.119 R)
• M14: 13,508,987 km (0.073 R)
• M15: 14,401,637 km (0.094 R)
• M16: 14,684,078 km (0.1 R)
• M17: 15,627,592 km (0.088 R)
• M18: 17,078,392 km (0.118 R)
• M19: 17,554,562 km (0.095 R)
• M20: 18,285,497 km (0.089 R)
• M21: 19,462,533 km (0.106 R)
• M22: 19,807,955 km (0.096 R)
• M23: 20,069,602 km (0.092 R)
• M24: 22,530,038 km (0.034 R)
• M25: 23,881,654 km (0.07 R)
• M26: 24,577,434 km (0.085 R)
• M27: 28,592,192 km (0.069 R)
• M28: 31,105,436 km (0.042 R)
• M29: 34,135,990 km (0.084 R)
• M30: 34,891,609 km (0.094 R)
• M31: 38,160,173 km (0.106 R)
• M32: 46,211,081 km (0.092 R)
• M33: 46,517,757 km (0.087 R)
• M34: 53,278,384 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.9

Radius: 3.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 9.66 AU - 11.32 AU

Year: 21937 Days

Day: 23.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 129.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,590,075 km

• M1: 51,312 km (0.055 R)
• M2: 167,699 km (0.092 R)
• M3: 414,237 km (0.118 R)
• M4: 3,196,607 km (0.116 R)
• M5: 7,777,743 km (0.102 R)
• M6: 10,826,248 km (0.081 R)
• M7: 12,521,043 km (0.035 R)
• M8: 13,551,174 km (0.032 R)
• M9: 14,535,378 km (0.029 R)
• M10: 17,259,256 km (0.07 R)
• M11: 21,656,386 km (0.028 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 521 - 15,560 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit