🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.56 AU - 0.6 AU

Year: 281 Days

Day: 41.5 Hours

Environment

Temp: -116 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.7

Radius: 14.5

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.69 AU - 1.13 AU

Year: 552 Days

Day: 12.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 96,060,055 km

• M1: 180,265 km (0.062 R)
• M2: 747,840 km (0.062 R)
• M3: 1,213,837 km (0.093 R)
• M4: 1,710,053 km (0.058 R)
• M5: 2,176,200 km (0.043 R)
• M6: 2,814,834 km (0.057 R)
• M7: 3,869,648 km (0.117 R)
• M8: 4,673,288 km (0.087 R)
• M9: 5,428,907 km (0.078 R)
• M10: 5,891,314 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.2

Radius: 12.7

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.04 AU - 1.32 AU

Year: 815 Days

Day: 10.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 96,060,055 km

• M1: 157,975 km (0.12 R)
• M2: 799,002 km (0.115 R)
• M3: 1,279,062 km (0.036 R)
• M4: 2,046,648 km (0.049 R)
• M5: 2,659,701 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.7

Radius: 13.1

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.74 AU - 2.9 AU

Year: 2247 Days

Day: 7.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 96,060,055 km

• M1: 162,912 km (0.094 R)
• M2: 730,935 km (0.08 R)
• M3: 1,179,280 km (0.074 R)
• M4: 1,839,455 km (0.085 R)
• M5: 2,505,914 km (0.091 R)
• M6: 3,194,214 km (0.027 R)
• M7: 5,560,702 km (0.113 R)
• M8: 6,353,870 km (0.079 R)
• M9: 6,820,017 km (0.08 R)
• M10: 8,039,390 km (0.07 R)
• M11: 8,684,605 km (0.106 R)
• M12: 10,006,003 km (0.091 R)
• M13: 10,753,245 km (0.095 R)
• M14: 12,741,849 km (0.065 R)
• M15: 14,166,170 km (0.06 R)
• M16: 16,549,564 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.7

Radius: 3.6

Gravity: 53.6 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 5.84 AU - 6.76 AU

Year: 10054 Days

Day: 16.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 96,060,055 km

• M1: 45,328 km (0.083 R)
• M2: 261,647 km (0.085 R)
• M3: 466,895 km (0.104 R)
• M4: 1,186,311 km (0.111 R)
• M5: 1,511,238 km (0.104 R)
• M6: 1,764,357 km (0.086 R)
• M7: 2,550,644 km (0.045 R)
• M8: 2,998,091 km (0.082 R)
• M9: 3,205,134 km (0.093 R)
• M10: 4,046,922 km (0.102 R)
• M11: 4,444,852 km (0.099 R)
• M12: 4,899,779 km (0.089 R)
• M13: 5,122,381 km (0.081 R)
• M14: 7,031,998 km (0.096 R)
• M15: 7,564,117 km (0.025 R)
• M16: 7,775,649 km (0.056 R)
• M17: 8,615,940 km (0.097 R)
• M18: 12,292,008 km (0.074 R)
• M19: 18,445,866 km (0.048 R)
• M20: 19,532,545 km (0.062 R)
• M21: 20,415,771 km (0.028 R)
• M22: 22,261,510 km (0.065 R)
• M23: 25,140,371 km (0.062 R)
• M24: 28,869,547 km (0.078 R)
• M25: 29,698,917 km (0.073 R)
• M26: 36,552,445 km (0.096 R)
• M27: 37,767,927 km (0.119 R)
• M28: 39,010,038 km (0.057 R)
• M29: 41,706,839 km (0.102 R)
• M30: 44,251,349 km (0.051 R)
• M31: 47,898,396 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.7

Radius: 3.2

Gravity: 38.45 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 8.67 AU - 8.89 AU

Year: 16542 Days

Day: 22 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 96,060,055 km

• M1: 76,445 km (0.05 R)
• M2: 392,545 km (0.1 R)
• M3: 771,925 km (0.072 R)
• M4: 1,329,177 km (0.079 R)
• M5: 1,699,133 km (0.04 R)
• M6: 1,916,798 km (0.092 R)
• M7: 3,992,169 km (0.102 R)
• M8: 4,688,248 km (0.112 R)
• M9: 4,849,664 km (0.08 R)
• M10: 5,859,898 km (0.117 R)
• M11: 5,971,797 km (0.116 R)
• M12: 8,908,553 km (0.089 R)
• M13: 11,363,753 km (0.084 R)
• M14: 12,807,672 km (0.12 R)
• M15: 13,769,736 km (0.094 R)
• M16: 18,338,156 km (0.095 R)
• M17: 18,819,711 km (0.071 R)
• M18: 20,314,792 km (0.117 R)
• M19: 21,442,461 km (0.099 R)
• M20: 22,979,280 km (0.062 R)
• M21: 26,371,412 km (0.119 R)
• M22: 32,119,860 km (0.05 R)
• M23: 44,699,096 km (0.105 R)
• M24: 47,646,024 km (0.089 R)
• M25: 50,719,812 km (0.093 R)
• M26: 54,909,749 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.3

Radius: 7.2

Gravity: 17.62 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 9.78 AU - 13.08 AU

Year: 24570 Days

Day: 17.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 96,060,055 km

• M1: 89,609 km (0.058 R)
• M2: 376,089 km (0.114 R)
• M3: 677,678 km (0.118 R)
• M4: 1,399,787 km (0.111 R)
• M5: 1,916,199 km (0.108 R)
• M6: 2,603,751 km (0.076 R)
• M7: 3,445,239 km (0.107 R)
• M8: 4,099,430 km (0.085 R)
• M9: 4,604,622 km (0.107 R)
• M10: 5,481,416 km (0.082 R)
• M11: 5,826,388 km (0.089 R)
• M12: 9,491,985 km (0.061 R)
• M13: 10,181,182 km (0.114 R)
• M14: 10,970,610 km (0.093 R)
• M15: 11,659,209 km (0.043 R)
• M16: 13,897,642 km (0.109 R)
• M17: 24,662,555 km (0.06 R)
• M18: 26,445,463 km (0.091 R)
• M19: 27,182,083 km (0.114 R)
• M20: 27,680,692 km (0.092 R)
• M21: 28,696,163 km (0.063 R)
• M22: 28,953,920 km (0.091 R)
• M23: 29,473,922 km (0.109 R)
• M24: 37,117,625 km (0.094 R)
• M25: 47,227,300 km (0.088 R)
• M26: 50,527,578 km (0.12 R)
• M27: 59,235,670 km (0.06 R)
• M28: 66,837,636 km (0.097 R)
• M29: 67,063,977 km (0.083 R)
• M30: 70,052,045 km (0.093 R)
• M31: 70,519,539 km (0.059 R)
• M32: 73,850,036 km (0.071 R)
• M33: 83,154,276 km (0.055 R)
• M34: 83,941,160 km (0.113 R)
• M35: 86,600,113 km (0.074 R)
• M36: 89,040,653 km (0.095 R)
• M37: 89,589,228 km (0.09 R)
• M38: 92,365,615 km (0.088 R)
• M39: 93,775,126 km (0.109 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: 159 - 19,735 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit