🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.46 AU - 0.66 AU

Year: 271 Days

Day: 28.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 2.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,188,797 km

• M1: 36,801 km (0.069 R)
• M2: 106,514 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.3

Radius: 14.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.7 AU - 1.14 AU

Year: 570 Days

Day: 9 Hours

Environment

Temp: -162 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,188,797 km

• M1: 181,612 km (0.094 R)
• M2: 696,228 km (0.047 R)
• M3: 1,199,177 km (0.103 R)
• M4: 1,922,632 km (0.098 R)
• M5: 2,551,541 km (0.115 R)
• M6: 3,247,022 km (0.088 R)
• M7: 3,920,960 km (0.111 R)
• M8: 5,114,602 km (0.086 R)
• M9: 5,839,403 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.8

Radius: 10.1

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.89 AU - 1.01 AU

Year: 598 Days

Day: 11.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,188,797 km

• M1: 125,662 km (0.113 R)
• M2: 460,911 km (0.11 R)
• M3: 814,710 km (0.12 R)
• M4: 1,217,876 km (0.085 R)
• M5: 1,895,704 km (0.096 R)
• M6: 2,263,416 km (0.049 R)
• M7: 2,931,221 km (0.044 R)
• M8: 3,300,578 km (0.115 R)
• M9: 4,685,705 km (0.09 R)
• M10: 5,380,587 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.6

Radius: 14.4

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.65 AU - 2.45 AU

Year: 1895 Days

Day: 8.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,188,797 km

• M1: 179,069 km (0.111 R)
• M2: 648,656 km (0.083 R)
• M3: 1,161,777 km (0.096 R)
• M4: 1,609,972 km (0.091 R)
• M5: 2,549,297 km (0.108 R)
• M6: 3,169,530 km (0.087 R)
• M7: 4,596,544 km (0.082 R)
• M8: 5,219,171 km (0.099 R)
• M9: 5,837,309 km (0.07 R)
• M10: 6,525,609 km (0.119 R)
• M11: 7,174,714 km (0.058 R)
• M12: 8,065,120 km (0.097 R)
• M13: 8,974,227 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.1

Radius: 13.9

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.56 AU - 4.18 AU

Year: 4916 Days

Day: 13.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 135.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,188,797 km

• M1: 172,935 km (0.116 R)
• M2: 731,833 km (0.108 R)
• M3: 1,371,663 km (0.078 R)
• M4: 2,201,183 km (0.085 R)
• M5: 2,712,957 km (0.064 R)
• M6: 3,345,457 km (0.119 R)
• M7: 3,797,991 km (0.089 R)
• M8: 4,341,031 km (0.102 R)
• M9: 5,044,440 km (0.111 R)
• M10: 7,693,071 km (0.111 R)
• M11: 9,805,991 km (0.058 R)
• M12: 10,741,875 km (0.105 R)
• M13: 11,302,867 km (0.077 R)
• M14: 13,800,104 km (0.116 R)
• M15: 14,803,607 km (0.083 R)
• M16: 15,264,967 km (0.115 R)
• M17: 16,095,534 km (0.086 R)
• M18: 16,707,090 km (0.095 R)
• M19: 17,334,055 km (0.037 R)
• M20: 21,067,719 km (0.077 R)
• M21: 21,578,595 km (0.095 R)
• M22: 24,577,434 km (0.047 R)
• M23: 25,471,132 km (0.112 R)
• M24: 26,724,762 km (0.071 R)
• M25: 27,237,584 km (0.103 R)
• M26: 28,459,649 km (0.09 R)
• M27: 30,360,888 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.1

Radius: 5.5

Gravity: 21.95 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.55 AU - 7.07 AU

Year: 10234 Days

Day: 18.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,188,797 km

• M1: 68,665 km (0.079 R)
• M2: 300,692 km (0.118 R)
• M3: 533,316 km (0.079 R)
• M4: 923,767 km (0.116 R)
• M5: 1,433,447 km (0.067 R)
• M6: 2,388,629 km (0.119 R)
• M7: 4,001,294 km (0.116 R)
• M8: 4,222,699 km (0.05 R)
• M9: 7,560,228 km (0.119 R)
• M10: 8,427,147 km (0.052 R)
• M11: 13,341,737 km (0.044 R)
• M12: 22,899,245 km (0.035 R)
• M13: 29,718,515 km (0.08 R)
• M14: 33,416,125 km (0.045 R)
• M15: 39,646,577 km (0.095 R)
• M16: 40,283,565 km (0.115 R)
• M17: 43,706,215 km (0.074 R)
• M18: 43,977,286 km (0.119 R)
• M19: 45,906,051 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 971.3

Radius: 7.8

Gravity: 15.96 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.23 AU - 9.89 AU

Year: 16171 Days

Day: 18.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,188,797 km

• M1: 195,674 km (0.097 R)
• M2: 487,390 km (0.118 R)
• M3: 833,410 km (0.069 R)
• M4: 1,213,538 km (0.111 R)
• M5: 1,654,702 km (0.038 R)
• M6: 2,502,174 km (0.07 R)
• M7: 3,789,464 km (0.107 R)
• M8: 4,066,968 km (0.09 R)
• M9: 5,392,554 km (0.094 R)
• M10: 5,946,815 km (0.109 R)
• M11: 6,893,769 km (0.07 R)
• M12: 9,752,884 km (0.097 R)
• M13: 11,379,162 km (0.067 R)
• M14: 12,694,875 km (0.088 R)
• M15: 14,778,624 km (0.066 R)
• M16: 15,082,906 km (0.096 R)
• M17: 16,261,438 km (0.074 R)
• M18: 17,247,438 km (0.115 R)
• M19: 18,099,098 km (0.11 R)
• M20: 21,689,896 km (0.085 R)
• M21: 25,077,241 km (0.108 R)
• M22: 28,801,629 km (0.06 R)
• M23: 33,267,724 km (0.08 R)
• M24: 35,664,731 km (0.072 R)
• M25: 46,082,128 km (0.115 R)
• M26: 47,884,184 km (0.045 R)
• M27: 50,416,577 km (0.111 R)
• M28: 59,885,673 km (0.085 R)
• M29: 60,271,785 km (0.089 R)
• M30: 68,981,224 km (0.106 R)
• M31: 71,553,410 km (0.081 R)
• M32: 73,303,256 km (0.092 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 316 - 12,703 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit