🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.1

Radius: 10.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.47 AU - 0.65 AU

Year: 289 Days

Day: 11.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,232,402 km

• M1: 128,056 km (0.064 R)
• M2: 495,019 km (0.079 R)
• M3: 846,574 km (0.118 R)
• M4: 1,176,886 km (0.113 R)
• M5: 1,871,619 km (0.112 R)
• M6: 2,264,762 km (0.08 R)
• M7: 2,820,369 km (0.062 R)
• M8: 3,180,152 km (0.038 R)
• M9: 3,788,865 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.4

Radius: 14

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.56 AU - 0.58 AU

Year: 297 Days

Day: 9.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,232,402 km

• M1: 174,132 km (0.049 R)
• M2: 738,415 km (0.107 R)
• M3: 1,334,413 km (0.108 R)
• M4: 2,144,485 km (0.105 R)
• M5: 2,598,814 km (0.116 R)
• M6: 3,138,713 km (0.113 R)
• M7: 3,637,921 km (0.104 R)
• M8: 4,473,874 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.7

Radius: 14.3

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.7 AU - 0.76 AU

Year: 431 Days

Day: 6.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 49,232,402 km

• M1: 178,021 km (0.069 R)
• M2: 645,664 km (0.094 R)
• M3: 1,144,274 km (0.085 R)
• M4: 1,817,165 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.2

Radius: 12.8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.86 AU - 1.24 AU

Year: 743 Days

Day: 5.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,232,402 km

• M1: 159,172 km (0.113 R)
• M2: 603,927 km (0.072 R)
• M3: 1,065,735 km (0.046 R)
• M4: 1,484,908 km (0.116 R)
• M5: 1,886,130 km (0.082 R)
• M6: 2,605,097 km (0.108 R)
• M7: 3,252,258 km (0.118 R)
• M8: 4,225,841 km (0.109 R)
• M9: 5,067,777 km (0.109 R)
• M10: 6,163,582 km (0.058 R)
• M11: 7,675,268 km (0.077 R)
• M12: 8,375,686 km (0.108 R)
• M13: 8,955,377 km (0.094 R)
• M14: 9,477,624 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.8

Radius: 12.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.19 AU - 1.45 AU

Year: 1047 Days

Day: 12.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,232,402 km

• M1: 155,432 km (0.082 R)
• M2: 649,404 km (0.092 R)
• M3: 1,087,277 km (0.073 R)
• M4: 3,389,140 km (0.052 R)
• M5: 4,457,717 km (0.058 R)
• M6: 6,315,424 km (0.113 R)
• M7: 9,312,168 km (0.12 R)

Asteroid Belt

Center: 1.75 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.5

Radius: 8.2

Gravity: 13.57 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.68 AU - 2.68 AU

Year: 2222 Days

Day: 8.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,232,402 km

• M1: 102,026 km (0.11 R)
• M2: 378,183 km (0.114 R)
• M3: 832,063 km (0.039 R)
• M4: 1,208,751 km (0.059 R)
• M5: 1,902,885 km (0.101 R)
• M6: 2,283,911 km (0.119 R)
• M7: 2,746,019 km (0.118 R)
• M8: 3,356,527 km (0.098 R)
• M9: 4,868,364 km (0.025 R)
• M10: 6,047,045 km (0.062 R)
• M11: 6,396,655 km (0.068 R)
• M12: 6,674,758 km (0.052 R)
• M13: 7,774,751 km (0.049 R)
• M14: 8,091,749 km (0.037 R)
• M15: 10,596,915 km (0.101 R)
• M16: 11,145,789 km (0.076 R)
• M17: 12,471,376 km (0.058 R)
• M18: 17,503,848 km (0.097 R)
• M19: 18,662,334 km (0.057 R)
• M20: 19,174,258 km (0.03 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 251

Radius: 5.3

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 7.78 AU - 9.28 AU

Year: 17196 Days

Day: 22.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,232,402 km

• M1: 65,973 km (0.035 R)
• M2: 231,877 km (0.097 R)
• M3: 483,351 km (0.119 R)
• M4: 1,001,707 km (0.099 R)
• M5: 1,380,190 km (0.119 R)
• M6: 2,658,653 km (0.066 R)
• M7: 4,727,891 km (0.05 R)
• M8: 5,137,939 km (0.103 R)
• M9: 5,957,137 km (0.096 R)
• M10: 9,858,799 km (0.115 R)
• M11: 12,894,289 km (0.099 R)
• M12: 15,730,964 km (0.119 R)
• M13: 20,151,282 km (0.115 R)
• M14: 20,974,369 km (0.091 R)
• M15: 25,144,859 km (0.069 R)
• M16: 29,207,039 km (0.099 R)
• M17: 29,520,447 km (0.057 R)
• M18: 32,778,240 km (0.043 R)
• M19: 34,030,524 km (0.054 R)
• M20: 40,125,739 km (0.111 R)
• M21: 43,429,459 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 13,201 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit