🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.58 AU - 0.78 AU

Year: 199 Days

Day: 22.3 Hours

Environment

Temp: 217 °C

Axial Tilt: 16.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 97,037,740 km

• M1: 221,106 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.77 AU - 1.97 AU

Year: 907 Days

Day: 26.8 Hours

Environment

Temp: -50 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.05 AU - 2.51 AU

Year: 1221 Days

Day: 41.9 Hours

Environment

Temp: -68 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.1

Radius: 13.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.83 AU - 12.91 AU

Year: 12714 Days

Day: 7 Hours

Environment

Temp: -176 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 97,037,740 km

• M1: 169,195 km (0.097 R)
• M2: 632,649 km (0.076 R)
• M3: 1,298,360 km (0.088 R)
• M4: 1,769,743 km (0.081 R)
• M5: 2,356,615 km (0.045 R)
• M6: 2,859,713 km (0.037 R)
• M7: 3,902,709 km (0.081 R)
• M8: 4,441,710 km (0.12 R)
• M9: 5,538,113 km (0.07 R)
• M10: 6,115,411 km (0.048 R)
• M11: 8,306,571 km (0.082 R)
• M12: 8,973,179 km (0.042 R)
• M13: 9,917,441 km (0.109 R)
• M14: 11,564,813 km (0.101 R)
• M15: 12,510,870 km (0.084 R)
• M16: 14,243,064 km (0.055 R)
• M17: 15,527,661 km (0.09 R)
• M18: 18,698,537 km (0.07 R)
• M19: 21,693,636 km (0.086 R)
• M20: 22,447,310 km (0.046 R)
• M21: 24,274,050 km (0.1 R)
• M22: 26,291,975 km (0.103 R)
• M23: 27,632,971 km (0.101 R)
• M24: 33,566,621 km (0.104 R)
• M25: 34,802,000 km (0.092 R)
• M26: 40,173,311 km (0.069 R)
• M27: 42,080,086 km (0.069 R)
• M28: 42,598,442 km (0.06 R)
• M29: 44,046,400 km (0.049 R)
• M30: 44,984,678 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.5

Radius: 9.6

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 9.4 AU - 13.24 AU

Year: 13512 Days

Day: 10.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 97,037,740 km

• M1: 119,379 km (0.081 R)
• M2: 495,169 km (0.066 R)
• M3: 1,016,817 km (0.089 R)
• M4: 1,991,746 km (0.099 R)
• M5: 2,601,657 km (0.061 R)
• M6: 3,261,832 km (0.071 R)
• M7: 4,499,904 km (0.063 R)
• M8: 5,130,459 km (0.064 R)
• M9: 5,649,564 km (0.105 R)
• M10: 6,132,166 km (0.113 R)
• M11: 6,456,794 km (0.104 R)
• M12: 6,792,940 km (0.088 R)
• M13: 7,500,388 km (0.116 R)
• M14: 8,083,820 km (0.081 R)
• M15: 8,742,350 km (0.085 R)
• M16: 10,166,372 km (0.113 R)
• M17: 11,412,223 km (0.094 R)
• M18: 12,815,302 km (0.098 R)
• M19: 16,646,204 km (0.078 R)
• M20: 17,137,782 km (0.113 R)
• M21: 18,595,763 km (0.066 R)
• M22: 19,354,973 km (0.117 R)
• M23: 20,452,422 km (0.114 R)
• M24: 22,007,492 km (0.079 R)
• M25: 26,855,511 km (0.081 R)
• M26: 27,337,515 km (0.066 R)
• M27: 30,560,302 km (0.077 R)
• M28: 32,917,366 km (0.117 R)
• M29: 33,247,828 km (0.046 R)
• M30: 34,252,826 km (0.097 R)
• M31: 36,912,975 km (0.11 R)
• M32: 43,428,860 km (0.044 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528.7

Radius: 4.1

Gravity: 31.45 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 15.98 AU - 17.1 AU

Year: 23864 Days

Day: 15.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 97,037,740 km

• M1: 73,602 km (0.083 R)
• M2: 1,043,595 km (0.039 R)
• M3: 2,045,003 km (0.105 R)
• M4: 2,190,861 km (0.115 R)
• M5: 2,574,280 km (0.108 R)
• M6: 2,845,352 km (0.033 R)
• M7: 3,651,235 km (0.116 R)
• M8: 4,997,915 km (0.109 R)
• M9: 5,864,386 km (0.11 R)
• M10: 6,965,576 km (0.113 R)
• M11: 13,320,643 km (0.101 R)
• M12: 19,299,920 km (0.115 R)
• M13: 19,578,023 km (0.074 R)
• M14: 22,303,547 km (0.082 R)
• M15: 25,716,024 km (0.053 R)
• M16: 35,180,183 km (0.12 R)
• M17: 41,289,760 km (0.03 R)
• M18: 60,161,083 km (0.072 R)
• M19: 63,778,808 km (0.067 R)
• M20: 69,256,484 km (0.087 R)
• M21: 71,887,013 km (0.083 R)
• M22: 73,002,415 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.5

Radius: 7.1

Gravity: 16.02 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 14.22 AU - 21.28 AU

Year: 26530 Days

Day: 15.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 97,037,740 km

• M1: 88,263 km (0.051 R)
• M2: 348,713 km (0.097 R)
• M3: 682,465 km (0.064 R)
• M4: 911,350 km (0.108 R)
• M5: 1,207,404 km (0.104 R)
• M6: 1,428,510 km (0.105 R)
• M7: 1,954,496 km (0.105 R)
• M8: 2,477,341 km (0.096 R)
• M9: 3,176,561 km (0.102 R)
• M10: 5,408,113 km (0.046 R)
• M11: 5,839,254 km (0.065 R)
• M12: 6,868,337 km (0.104 R)
• M13: 10,810,092 km (0.063 R)
• M14: 13,408,008 km (0.113 R)
• M15: 18,519,319 km (0.118 R)
• M16: 19,597,471 km (0.111 R)
• M17: 20,407,394 km (0.095 R)
• M18: 20,924,853 km (0.092 R)
• M19: 21,663,866 km (0.104 R)
• M20: 28,599,223 km (0.106 R)
• M21: 29,772,519 km (0.12 R)
• M22: 30,170,599 km (0.1 R)
• M23: 32,354,279 km (0.119 R)
• M24: 35,377,353 km (0.104 R)
• M25: 36,425,436 km (0.083 R)
• M26: 40,825,409 km (0.064 R)
• M27: 41,812,306 km (0.101 R)
• M28: 45,567,063 km (0.081 R)
• M29: 60,471,947 km (0.033 R)
• M30: 65,259,827 km (0.108 R)
• M31: 66,608,153 km (0.065 R)
• M32: 69,128,129 km (0.073 R)
• M33: 72,426,463 km (0.069 R)
• M34: 76,322,590 km (0.053 R)
• M35: 83,473,069 km (0.119 R)
• M36: 85,061,349 km (0.104 R)
• M37: 94,158,246 km (0.113 R)

Kuiper Belt

Range: 30.9 - 57.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 15,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit