🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.2

Radius: 13.4

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.78 AU - 0.82 AU

Year: 477 Days

Day: 9.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,073,181 km

• M1: 171,439 km (0.079 R)
• M2: 714,479 km (0.077 R)
• M3: 1,726,060 km (0.108 R)
• M4: 2,357,662 km (0.102 R)
• M5: 2,992,855 km (0.063 R)
• M6: 4,272,216 km (0.038 R)
• M7: 5,747,700 km (0.061 R)
• M8: 6,477,887 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.3

Radius: 9.2

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.05 AU - 1.11 AU

Year: 748 Days

Day: 7.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,073,181 km

• M1: 114,442 km (0.108 R)
• M2: 549,473 km (0.107 R)
• M3: 1,213,987 km (0.088 R)
• M4: 1,578,856 km (0.086 R)
• M5: 2,043,956 km (0.105 R)
• M6: 2,847,296 km (0.096 R)
• M7: 3,446,137 km (0.088 R)
• M8: 3,761,638 km (0.079 R)
• M9: 5,013,473 km (0.076 R)
• M10: 6,279,520 km (0.061 R)
• M11: 7,030,202 km (0.056 R)

Planet 3 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.8

Radius: 3.8

Gravity: 13.63 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 6.33 AU - 7.51 AU

Year: 12139 Days

Day: 19.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,073,181 km

• M1: 47,273 km (0.11 R)
• M2: 326,273 km (0.044 R)
• M3: 602,131 km (0.113 R)
• M4: 861,983 km (0.098 R)
• M5: 1,386,473 km (0.073 R)
• M6: 1,669,063 km (0.073 R)
• M7: 2,435,005 km (0.075 R)
• M8: 3,236,101 km (0.115 R)
• M9: 3,755,355 km (0.112 R)
• M10: 3,923,952 km (0.11 R)
• M11: 7,060,421 km (0.115 R)
• M12: 9,602,987 km (0.101 R)
• M13: 10,428,168 km (0.108 R)
• M14: 13,241,207 km (0.052 R)
• M15: 13,915,744 km (0.079 R)
• M16: 14,612,870 km (0.112 R)
• M17: 14,790,741 km (0.051 R)
• M18: 18,868,031 km (0.114 R)
• M19: 20,451,675 km (0.099 R)
• M20: 21,351,805 km (0.116 R)
• M21: 23,962,587 km (0.119 R)
• M22: 27,402,889 km (0.083 R)
• M23: 32,852,889 km (0.099 R)
• M24: 34,398,534 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339

Radius: 3.4

Gravity: 29.33 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.7 AU - 9.56 AU

Year: 15458 Days

Day: 22.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,073,181 km

• M1: 43,383 km (0.1 R)
• M2: 187,297 km (0.076 R)
• M3: 699,520 km (0.119 R)
• M4: 2,122,046 km (0.092 R)
• M5: 3,093,086 km (0.05 R)
• M6: 3,381,959 km (0.09 R)
• M7: 3,662,156 km (0.115 R)
• M8: 6,526,207 km (0.066 R)
• M9: 6,839,914 km (0.095 R)
• M10: 8,195,869 km (0.045 R)
• M11: 8,468,586 km (0.12 R)
• M12: 10,496,983 km (0.076 R)
• M13: 11,538,185 km (0.068 R)
• M14: 11,708,577 km (0.081 R)
• M15: 19,988,669 km (0.104 R)
• M16: 20,984,393 km (0.088 R)
• M17: 22,012,728 km (0.115 R)
• M18: 25,586,322 km (0.052 R)
• M19: 27,258,228 km (0.114 R)
• M20: 27,459,587 km (0.06 R)
• M21: 27,967,172 km (0.12 R)
• M22: 28,584,712 km (0.11 R)
• M23: 33,049,461 km (0.096 R)
• M24: 38,713,685 km (0.114 R)
• M25: 45,980,850 km (0.058 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994.3

Radius: 4.8

Gravity: 43.16 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.9 AU - 10.82 AU

Year: 17587 Days

Day: 19.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,073,181 km

• M1: 59,690 km (0.068 R)
• M2: 310,715 km (0.071 R)
• M3: 505,342 km (0.094 R)
• M4: 1,098,198 km (0.092 R)
• M5: 1,986,809 km (0.042 R)
• M6: 3,030,254 km (0.09 R)
• M7: 3,476,505 km (0.116 R)
• M8: 7,164,242 km (0.094 R)
• M9: 8,158,769 km (0.047 R)
• M10: 8,635,088 km (0.059 R)
• M11: 9,701,272 km (0.11 R)
• M12: 11,169,575 km (0.084 R)
• M13: 12,432,481 km (0.026 R)
• M14: 14,769,648 km (0.047 R)
• M15: 17,212,133 km (0.093 R)
• M16: 21,065,175 km (0.105 R)
• M17: 21,559,148 km (0.094 R)
• M18: 26,584,738 km (0.065 R)
• M19: 27,511,198 km (0.079 R)
• M20: 32,599,919 km (0.025 R)
• M21: 33,127,551 km (0.112 R)
• M22: 33,526,977 km (0.109 R)
• M23: 41,277,942 km (0.12 R)
• M24: 50,492,273 km (0.082 R)
• M25: 55,761,709 km (0.041 R)
• M26: 64,645,279 km (0.093 R)
• M27: 68,663,179 km (0.045 R)
• M28: 68,879,198 km (0.061 R)
• M29: 75,111,595 km (0.16 R)
• M30: 78,836,432 km (0.098 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 12,251 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit