🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.55 AU - 0.59 AU

Year: 282 Days

Day: 44.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,929,930 km

• M1: 37,699 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.8

Radius: 13.8

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.88 AU - 1.04 AU

Year: 617 Days

Day: 6.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,929,930 km

• M1: 171,589 km (0.092 R)
• M2: 712,385 km (0.104 R)
• M3: 1,353,562 km (0.073 R)
• M4: 1,812,528 km (0.069 R)
• M5: 2,386,684 km (0.115 R)
• M6: 3,230,865 km (0.101 R)
• M7: 3,710,476 km (0.036 R)
• M8: 4,601,930 km (0.11 R)
• M9: 5,098,894 km (0.105 R)
• M10: 5,876,504 km (0.12 R)
• M11: 6,312,881 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.8

Radius: 12.4

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.73 AU - 1.89 AU

Year: 1597 Days

Day: 12.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 156.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,929,930 km

• M1: 154,235 km (0.107 R)
• M2: 640,129 km (0.036 R)
• M3: 1,145,172 km (0.118 R)
• M4: 1,738,028 km (0.073 R)
• M5: 2,374,268 km (0.088 R)
• M6: 3,549,060 km (0.062 R)
• M7: 4,343,574 km (0.094 R)
• M8: 4,742,253 km (0.054 R)
• M9: 6,064,249 km (0.094 R)
• M10: 6,957,049 km (0.119 R)
• M11: 7,421,401 km (0.059 R)
• M12: 8,565,226 km (0.059 R)
• M13: 9,195,781 km (0.094 R)
• M14: 10,692,358 km (0.114 R)
• M15: 11,763,928 km (0.05 R)
• M16: 12,149,591 km (0.082 R)
• M17: 13,948,206 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.5

Radius: 11.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.52 AU - 2.82 AU

Year: 2862 Days

Day: 10.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,929,930 km

• M1: 148,251 km (0.066 R)
• M2: 676,781 km (0.032 R)
• M3: 1,806,693 km (0.039 R)
• M4: 2,335,522 km (0.115 R)
• M5: 2,825,455 km (0.099 R)
• M6: 3,365,952 km (0.077 R)
• M7: 4,441,710 km (0.098 R)
• M8: 5,461,968 km (0.054 R)
• M9: 6,251,396 km (0.113 R)
• M10: 7,380,710 km (0.114 R)
• M11: 7,962,795 km (0.046 R)
• M12: 8,509,276 km (0.05 R)
• M13: 10,756,237 km (0.101 R)
• M14: 11,667,288 km (0.063 R)
• M15: 12,079,130 km (0.05 R)
• M16: 12,543,333 km (0.088 R)
• M17: 13,195,579 km (0.116 R)
• M18: 14,146,723 km (0.109 R)
• M19: 15,932,772 km (0.118 R)
• M20: 16,749,875 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 11.9

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.68 AU - 4.6 AU

Year: 5526 Days

Day: 12.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,929,930 km

• M1: 147,952 km (0.086 R)
• M2: 796,309 km (0.068 R)
• M3: 3,445,538 km (0.093 R)
• M4: 5,553,073 km (0.033 R)
• M5: 7,730,769 km (0.1 R)
• M6: 8,556,549 km (0.084 R)
• M7: 9,361,087 km (0.115 R)
• M8: 10,944,431 km (0.111 R)
• M9: 12,699,513 km (0.093 R)
• M10: 13,441,668 km (0.079 R)
• M11: 14,264,755 km (0.107 R)
• M12: 15,066,600 km (0.092 R)
• M13: 18,142,332 km (0.098 R)
• M14: 19,083,752 km (0.108 R)
• M15: 22,033,373 km (0.096 R)
• M16: 24,360,816 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 101.2

Radius: 7

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.19 AU - 6.67 AU

Year: 9473 Days

Day: 17.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,929,930 km

• M1: 89,160 km (0.118 R)
• M2: 360,830 km (0.083 R)
• M3: 604,675 km (0.073 R)
• M4: 970,292 km (0.079 R)
• M5: 1,242,410 km (0.085 R)
• M6: 1,487,751 km (0.089 R)
• M7: 1,729,052 km (0.049 R)
• M8: 2,615,569 km (0.119 R)
• M9: 2,917,308 km (0.082 R)
• M10: 3,279,784 km (0.084 R)
• M11: 3,816,391 km (0.073 R)
• M12: 4,161,065 km (0.074 R)
• M13: 5,453,441 km (0.118 R)
• M14: 6,501,374 km (0.101 R)
• M15: 8,766,884 km (0.092 R)
• M16: 10,076,464 km (0.087 R)
• M17: 12,232,019 km (0.108 R)
• M18: 13,319,596 km (0.074 R)
• M19: 14,470,452 km (0.094 R)
• M20: 15,255,692 km (0.082 R)
• M21: 17,025,584 km (0.091 R)
• M22: 19,175,305 km (0.037 R)
• M23: 20,444,643 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.7

Radius: 3.5

Gravity: 74.91 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.95 AU - 7.53 AU

Year: 11479 Days

Day: 16.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 57,929,930 km

• M1: 43,533 km (0.062 R)
• M2: 153,936 km (0.11 R)
• M3: 506,688 km (0.111 R)
• M4: 626,815 km (0.119 R)
• M5: 863,928 km (0.095 R)
• M6: 1,247,347 km (0.044 R)
• M7: 1,455,288 km (0.095 R)
• M8: 1,653,804 km (0.117 R)
• M9: 2,104,992 km (0.068 R)
• M10: 2,258,928 km (0.11 R)
• M11: 2,789,551 km (0.037 R)
• M12: 3,860,523 km (0.081 R)
• M13: 4,487,188 km (0.082 R)
• M14: 4,974,578 km (0.109 R)
• M15: 5,283,348 km (0.103 R)
• M16: 7,149,881 km (0.093 R)
• M17: 8,759,404 km (0.056 R)
• M18: 10,763,716 km (0.105 R)
• M19: 15,504,473 km (0.098 R)
• M20: 16,610,151 km (0.113 R)
• M21: 18,649,319 km (0.105 R)
• M22: 19,142,544 km (0.093 R)
• M23: 19,560,071 km (0.107 R)
• M24: 28,475,506 km (0.064 R)
• M25: 30,353,258 km (0.104 R)
• M26: 35,093,566 km (0.072 R)
• M27: 38,557,654 km (0.079 R)
• M28: 39,626,082 km (0.096 R)
• M29: 40,714,257 km (0.116 R)
• M30: 42,242,699 km (0.088 R)
• M31: 43,092,265 km (0.099 R)
• M32: 44,533,641 km (0.069 R)
• M33: 44,679,498 km (0.099 R)
• M34: 52,711,707 km (0.119 R)
• M35: 55,363,928 km (0.056 R)
• M36: 56,551,735 km (0.08 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 19,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit