🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 13.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.5 AU - 0.54 AU

Year: 259 Days

Day: 13.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,408,688 km

• M1: 166,652 km (0.088 R)
• M2: 628,161 km (0.067 R)
• M3: 1,199,177 km (0.104 R)
• M4: 1,849,628 km (0.117 R)
• M5: 2,271,793 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.6

Radius: 12

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.48 AU - 0.76 AU

Year: 337 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,408,688 km

• M1: 149,299 km (0.059 R)
• M2: 597,943 km (0.063 R)
• M3: 1,214,585 km (0.092 R)
• M4: 2,175,153 km (0.078 R)
• M5: 2,579,217 km (0.081 R)
• M6: 3,189,875 km (0.048 R)
• M7: 3,564,468 km (0.091 R)
• M8: 4,118,579 km (0.097 R)
• M9: 4,578,293 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.4

Radius: 10.9

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.93 AU - 1.99 AU

Year: 1894 Days

Day: 14.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,408,688 km

• M1: 135,984 km (0.103 R)
• M2: 584,180 km (0.116 R)
• M3: 1,569,730 km (0.115 R)
• M4: 2,872,429 km (0.046 R)
• M5: 3,300,428 km (0.092 R)
• M6: 6,355,217 km (0.036 R)
• M7: 9,912,654 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.3

Radius: 9.7

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.91 AU - 2.07 AU

Year: 1938 Days

Day: 14.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,408,688 km

• M1: 120,576 km (0.049 R)
• M2: 463,454 km (0.111 R)
• M3: 787,483 km (0.043 R)
• M4: 1,336,358 km (0.113 R)
• M5: 1,667,867 km (0.108 R)
• M6: 2,307,996 km (0.077 R)
• M7: 2,997,193 km (0.079 R)
• M8: 3,907,646 km (0.114 R)
• M9: 5,056,707 km (0.03 R)
• M10: 5,410,207 km (0.072 R)
• M11: 6,545,356 km (0.09 R)
• M12: 6,912,469 km (0.088 R)
• M13: 7,745,579 km (0.061 R)
• M14: 8,958,519 km (0.12 R)
• M15: 10,540,516 km (0.119 R)
• M16: 12,182,951 km (0.12 R)
• M17: 12,578,787 km (0.111 R)
• M18: 12,942,460 km (0.117 R)
• M19: 13,313,014 km (0.107 R)
• M20: 14,822,307 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.8

Radius: 11.2

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.65 AU - 5.99 AU

Year: 7304 Days

Day: 9.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,408,688 km

• M1: 139,575 km (0.062 R)
• M2: 642,224 km (0.116 R)
• M3: 1,037,312 km (0.088 R)
• M4: 1,406,370 km (0.118 R)
• M5: 1,936,096 km (0.077 R)
• M6: 2,355,269 km (0.078 R)
• M7: 3,048,655 km (0.103 R)
• M8: 8,154,131 km (0.061 R)
• M9: 9,131,155 km (0.058 R)
• M10: 9,692,147 km (0.109 R)
• M11: 11,712,765 km (0.114 R)
• M12: 13,388,710 km (0.078 R)
• M13: 20,808,465 km (0.038 R)
• M14: 21,932,993 km (0.088 R)
• M15: 24,548,711 km (0.054 R)
• M16: 30,486,849 km (0.039 R)
• M17: 31,351,076 km (0.072 R)
• M18: 34,660,331 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.8

Radius: 8.4

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.96 AU - 5.38 AU

Year: 8114 Days

Day: 9.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,408,688 km

• M1: 105,616 km (0.068 R)
• M2: 513,121 km (0.067 R)
• M3: 988,393 km (0.107 R)
• M4: 1,736,382 km (0.119 R)
• M5: 2,798,228 km (0.12 R)
• M6: 3,143,500 km (0.117 R)
• M7: 3,468,875 km (0.109 R)
• M8: 4,640,975 km (0.114 R)
• M9: 4,971,287 km (0.108 R)
• M10: 7,215,404 km (0.098 R)
• M11: 8,470,082 km (0.085 R)
• M12: 9,102,881 km (0.096 R)
• M13: 10,011,688 km (0.105 R)
• M14: 11,085,053 km (0.112 R)
• M15: 13,459,021 km (0.037 R)
• M16: 14,070,577 km (0.12 R)
• M17: 14,828,739 km (0.107 R)
• M18: 19,416,008 km (0.083 R)
• M19: 20,275,897 km (0.074 R)
• M20: 22,493,985 km (0.093 R)
• M21: 24,869,000 km (0.112 R)
• M22: 28,091,189 km (0.084 R)
• M23: 32,117,915 km (0.109 R)
• M24: 33,652,639 km (0.117 R)
• M25: 34,551,124 km (0.06 R)
• M26: 36,867,498 km (0.088 R)
• M27: 38,549,127 km (0.099 R)
• M28: 39,781,365 km (0.042 R)
• M29: 41,039,483 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 404

Radius: 7.9

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.51 AU - 10.71 AU

Year: 17439 Days

Day: 21 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,408,688 km

• M1: 105,466 km (0.107 R)
• M2: 496,964 km (0.032 R)
• M3: 1,747,902 km (0.12 R)
• M4: 2,112,621 km (0.083 R)
• M5: 2,444,429 km (0.094 R)
• M6: 2,788,355 km (0.108 R)
• M7: 4,592,954 km (0.113 R)
• M8: 4,916,983 km (0.12 R)
• M9: 6,096,113 km (0.119 R)
• M10: 7,810,505 km (0.096 R)
• M11: 11,208,920 km (0.096 R)
• M12: 11,918,014 km (0.106 R)
• M13: 19,197,745 km (0.057 R)
• M14: 19,954,860 km (0.055 R)
• M15: 21,618,538 km (0.11 R)
• M16: 23,183,631 km (0.054 R)
• M17: 26,434,692 km (0.081 R)
• M18: 29,201,056 km (0.081 R)
• M19: 32,154,716 km (0.093 R)
• M20: 34,068,073 km (0.117 R)
• M21: 36,564,861 km (0.071 R)
• M22: 39,047,438 km (0.101 R)
• M23: 39,315,068 km (0.063 R)
• M24: 50,896,487 km (0.086 R)
• M25: 54,651,693 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384.7

Radius: 7.1

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.24 AU - 10.32 AU

Year: 22751 Days

Day: 19.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,408,688 km

• M1: 89,160 km (0.094 R)
• M2: 643,121 km (0.115 R)
• M3: 1,540,409 km (0.112 R)
• M4: 2,326,995 km (0.095 R)
• M5: 4,172,285 km (0.109 R)
• M6: 4,694,381 km (0.117 R)
• M7: 5,370,115 km (0.051 R)
• M8: 5,596,456 km (0.086 R)
• M9: 8,731,280 km (0.054 R)
• M10: 9,151,051 km (0.1 R)
• M11: 9,918,040 km (0.102 R)
• M12: 10,317,316 km (0.06 R)
• M13: 12,410,639 km (0.069 R)
• M14: 13,626,272 km (0.047 R)
• M15: 14,119,945 km (0.094 R)
• M16: 16,449,931 km (0.111 R)
• M17: 17,253,122 km (0.112 R)
• M18: 18,937,445 km (0.081 R)
• M19: 20,544,724 km (0.089 R)
• M20: 32,509,861 km (0.096 R)
• M21: 33,772,916 km (0.11 R)
• M22: 42,342,481 km (0.097 R)
• M23: 45,857,582 km (0.113 R)
• M24: 48,577,421 km (0.113 R)
• M25: 57,015,488 km (0.096 R)
• M26: 62,635,581 km (0.09 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 15,121 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit