🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.49 AU - 0.53 AU

Year: 239 Days

Day: 32 Hours

Environment

Temp: -120 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.46 AU - 0.62 AU

Year: 260 Days

Day: 43.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,516,196 km

• M1: 97,538 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.2

Radius: 11.7

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.88 AU - 0.96 AU

Year: 579 Days

Day: 11.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,516,196 km

• M1: 146,157 km (0.067 R)
• M2: 809,175 km (0.094 R)
• M3: 1,221,167 km (0.071 R)
• M4: 1,899,295 km (0.05 R)
• M5: 2,691,714 km (0.118 R)
• M6: 3,130,635 km (0.112 R)
• M7: 3,743,687 km (0.102 R)
• M8: 4,126,956 km (0.084 R)
• M9: 5,588,378 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.9

Radius: 14.1

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.34 AU - 3.48 AU

Year: 3256 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,516,196 km

• M1: 175,478 km (0.082 R)
• M2: 797,506 km (0.053 R)
• M3: 1,301,801 km (0.108 R)
• M4: 1,741,170 km (0.079 R)
• M5: 2,441,736 km (0.085 R)
• M6: 3,710,626 km (0.076 R)
• M7: 4,481,055 km (0.103 R)
• M8: 4,953,784 km (0.11 R)
• M9: 5,972,695 km (0.095 R)
• M10: 6,636,610 km (0.087 R)
• M11: 7,253,552 km (0.088 R)
• M12: 8,891,649 km (0.054 R)
• M13: 10,848,239 km (0.074 R)
• M14: 11,531,004 km (0.065 R)
• M15: 13,412,496 km (0.117 R)
• M16: 14,199,680 km (0.114 R)
• M17: 15,121,802 km (0.072 R)
• M18: 16,412,981 km (0.066 R)
• M19: 18,188,109 km (0.111 R)
• M20: 19,214,201 km (0.044 R)
• M21: 19,961,592 km (0.09 R)
• M22: 21,316,051 km (0.119 R)
• M23: 23,007,405 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.3

Radius: 8.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.04 AU - 3.68 AU

Year: 4040 Days

Day: 8.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,516,196 km

• M1: 109,954 km (0.107 R)
• M2: 399,127 km (0.109 R)
• M3: 1,143,975 km (0.074 R)
• M4: 2,427,525 km (0.06 R)
• M5: 3,324,962 km (0.076 R)
• M6: 7,129,835 km (0.111 R)
• M7: 7,740,493 km (0.099 R)
• M8: 10,841,358 km (0.058 R)
• M9: 11,576,781 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.7

Radius: 4.4

Gravity: 31.8 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.65 AU - 7.65 AU

Year: 12542 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,516,196 km

• M1: 54,753 km (0.072 R)
• M2: 218,562 km (0.045 R)
• M3: 357,838 km (0.041 R)
• M4: 504,294 km (0.045 R)
• M5: 1,043,595 km (0.044 R)
• M6: 1,365,529 km (0.088 R)
• M7: 2,021,516 km (0.077 R)
• M8: 2,520,575 km (0.091 R)
• M9: 2,799,126 km (0.117 R)
• M10: 4,093,596 km (0.117 R)
• M11: 4,327,717 km (0.105 R)
• M12: 5,814,570 km (0.118 R)
• M13: 6,186,022 km (0.06 R)
• M14: 9,342,088 km (0.103 R)
• M15: 9,594,459 km (0.094 R)
• M16: 11,721,592 km (0.115 R)
• M17: 13,686,111 km (0.106 R)
• M18: 15,505,969 km (0.107 R)
• M19: 19,535,088 km (0.089 R)
• M20: 21,481,805 km (0.106 R)
• M21: 26,152,101 km (0.064 R)
• M22: 27,778,529 km (0.118 R)
• M23: 28,722,342 km (0.032 R)
• M24: 30,895,999 km (0.1 R)
• M25: 34,597,948 km (0.073 R)
• M26: 35,323,348 km (0.047 R)
• M27: 42,728,742 km (0.069 R)
• M28: 44,409,325 km (0.1 R)
• M29: 45,988,181 km (0.107 R)
• M30: 48,350,780 km (0.108 R)
• M31: 50,329,062 km (0.041 R)
• M32: 53,637,718 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.2

Radius: 6.9

Gravity: 16.95 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.2 AU - 8.44 AU

Year: 15743 Days

Day: 18 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,516,196 km

• M1: 105,466 km (0.072 R)
• M2: 335,698 km (0.068 R)
• M3: 985,252 km (0.08 R)
• M4: 1,447,808 km (0.094 R)
• M5: 1,842,597 km (0.099 R)
• M6: 2,164,083 km (0.095 R)
• M7: 2,635,466 km (0.038 R)
• M8: 3,095,928 km (0.025 R)
• M9: 3,386,148 km (0.092 R)
• M10: 3,665,597 km (0.064 R)
• M11: 4,176,324 km (0.11 R)
• M12: 4,531,320 km (0.114 R)
• M13: 7,465,981 km (0.038 R)
• M14: 9,763,355 km (0.109 R)
• M15: 10,564,602 km (0.081 R)
• M16: 10,801,415 km (0.081 R)
• M17: 11,224,328 km (0.094 R)
• M18: 13,027,282 km (0.107 R)
• M19: 14,427,817 km (0.083 R)
• M20: 16,394,730 km (0.062 R)
• M21: 18,108,673 km (0.057 R)
• M22: 21,225,095 km (0.116 R)
• M23: 22,761,914 km (0.092 R)
• M24: 25,203,950 km (0.033 R)
• M25: 28,954,817 km (0.034 R)
• M26: 30,721,868 km (0.107 R)
• M27: 32,809,955 km (0.104 R)
• M28: 40,935,213 km (0.075 R)
• M29: 44,682,939 km (0.088 R)
• M30: 54,773,914 km (0.056 R)
• M31: 55,128,311 km (0.093 R)
• M32: 57,651,728 km (0.071 R)
• M33: 58,386,553 km (0.046 R)
• M34: 65,482,728 km (0.109 R)
• M35: 67,698,272 km (0.077 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: 488 - 14,848 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit