🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.6 AU - 0.62 AU

Year: 308 Days

Day: 31.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167

Radius: 12.9

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.6 AU - 0.8 AU

Year: 378 Days

Day: 10.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 94,982,069 km

• M1: 160,369 km (0.112 R)
• M2: 617,390 km (0.088 R)
• M3: 1,071,570 km (0.062 R)
• M4: 1,750,594 km (0.099 R)
• M5: 2,189,963 km (0.109 R)
• M6: 2,854,776 km (0.094 R)
• M7: 3,278,138 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.4

Radius: 11.9

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.7 AU - 1 AU

Year: 506 Days

Day: 6.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 94,982,069 km

• M1: 147,952 km (0.087 R)
• M2: 635,342 km (0.104 R)
• M3: 1,019,061 km (0.074 R)
• M4: 1,462,469 km (0.081 R)
• M5: 1,887,177 km (0.117 R)
• M6: 2,347,490 km (0.117 R)
• M7: 2,882,452 km (0.074 R)
• M8: 3,535,297 km (0.102 R)
• M9: 4,199,511 km (0.119 R)
• M10: 4,621,826 km (0.115 R)
• M11: 5,433,993 km (0.102 R)
• M12: 6,172,259 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.2

Radius: 14.5

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.38 AU - 2.24 AU

Year: 1572 Days

Day: 7.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 94,982,069 km

• M1: 180,565 km (0.106 R)
• M2: 775,366 km (0.104 R)
• M3: 1,391,859 km (0.114 R)
• M4: 2,205,671 km (0.085 R)
• M5: 2,742,129 km (0.107 R)
• M6: 3,458,104 km (0.093 R)
• M7: 3,911,835 km (0.104 R)
• M8: 6,144,284 km (0.059 R)
• M9: 6,642,893 km (0.045 R)
• M10: 7,117,418 km (0.067 R)
• M11: 8,304,327 km (0.11 R)
• M12: 9,682,273 km (0.113 R)
• M13: 10,492,645 km (0.088 R)
• M14: 11,242,729 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.8

Radius: 5.6

Gravity: 17.88 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.57 AU - 7.29 AU

Year: 11779 Days

Day: 20.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 94,982,069 km

• M1: 69,713 km (0.052 R)
• M2: 274,213 km (0.114 R)
• M3: 631,004 km (0.089 R)
• M4: 1,472,791 km (0.059 R)
• M5: 3,486,678 km (0.097 R)
• M6: 6,891,376 km (0.077 R)
• M7: 8,243,740 km (0.095 R)
• M8: 8,424,305 km (0.079 R)
• M9: 8,934,733 km (0.094 R)
• M10: 10,589,884 km (0.105 R)
• M11: 12,146,150 km (0.051 R)
• M12: 13,161,920 km (0.04 R)
• M13: 13,722,164 km (0.11 R)
• M14: 13,912,303 km (0.096 R)
• M15: 14,233,190 km (0.117 R)
• M16: 16,052,151 km (0.089 R)
• M17: 16,476,410 km (0.117 R)
• M18: 21,139,526 km (0.081 R)
• M19: 23,048,544 km (0.034 R)
• M20: 23,407,579 km (0.093 R)
• M21: 24,975,215 km (0.082 R)
• M22: 25,544,884 km (0.101 R)
• M23: 33,413,133 km (0.115 R)
• M24: 35,874,916 km (0.1 R)
• M25: 36,478,394 km (0.066 R)
• M26: 37,211,423 km (0.108 R)
• M27: 40,112,425 km (0.078 R)
• M28: 40,631,978 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 955.3

Radius: 7.7

Gravity: 16.11 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 8.56 AU - 13.48 AU

Year: 23620 Days

Day: 21.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 94,982,069 km

• M1: 96,191 km (0.078 R)
• M2: 356,193 km (0.048 R)
• M3: 1,065,286 km (0.074 R)
• M4: 2,005,210 km (0.044 R)
• M5: 2,315,476 km (0.106 R)
• M6: 3,005,421 km (0.099 R)
• M7: 3,293,248 km (0.082 R)
• M8: 4,449,340 km (0.102 R)
• M9: 4,709,790 km (0.057 R)
• M10: 5,899,242 km (0.089 R)
• M11: 7,639,814 km (0.118 R)
• M12: 10,329,284 km (0.105 R)
• M13: 10,853,924 km (0.081 R)
• M14: 12,315,944 km (0.114 R)
• M15: 13,360,735 km (0.113 R)
• M16: 14,544,354 km (0.075 R)
• M17: 15,036,980 km (0.119 R)
• M18: 17,853,608 km (0.065 R)
• M19: 19,385,939 km (0.07 R)
• M20: 20,693,873 km (0.086 R)
• M21: 21,107,811 km (0.12 R)
• M22: 30,861,891 km (0.102 R)
• M23: 38,080,288 km (0.083 R)
• M24: 41,913,135 km (0.116 R)
• M25: 43,077,754 km (0.062 R)
• M26: 47,952,401 km (0.059 R)
• M27: 49,409,933 km (0.079 R)
• M28: 52,989,361 km (0.095 R)
• M29: 56,939,942 km (0.069 R)
• M30: 64,978,882 km (0.06 R)
• M31: 67,439,618 km (0.084 R)
• M32: 77,159,291 km (0.108 R)
• M33: 83,260,490 km (0.1 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 19,899 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit