🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.2

Radius: 13.3

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.72 AU - 0.88 AU

Year: 462 Days

Day: 8.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,792,015 km

• M1: 165,455 km (0.107 R)
• M2: 589,266 km (0.117 R)
• M3: 1,305,541 km (0.076 R)
• M4: 1,829,283 km (0.097 R)
• M5: 2,249,054 km (0.075 R)
• M6: 2,744,672 km (0.065 R)
• M7: 3,312,994 km (0.094 R)
• M8: 3,839,429 km (0.11 R)
• M9: 4,363,471 km (0.118 R)
• M10: 4,950,942 km (0.099 R)
• M11: 5,590,772 km (0.079 R)
• M12: 6,065,595 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.1

Radius: 10.9

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.44 AU - 1.48 AU

Year: 1139 Days

Day: 6.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,792,015 km

• M1: 135,685 km (0.101 R)
• M2: 1,000,660 km (0.12 R)
• M3: 1,434,943 km (0.101 R)
• M4: 2,208,214 km (0.103 R)
• M5: 3,210,819 km (0.068 R)
• M6: 4,123,516 km (0.084 R)
• M7: 4,659,226 km (0.077 R)
• M8: 5,022,300 km (0.107 R)
• M9: 6,620,903 km (0.108 R)
• M10: 7,614,382 km (0.1 R)
• M11: 8,847,966 km (0.085 R)
• M12: 9,227,945 km (0.081 R)
• M13: 11,328,448 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.3

Radius: 11.2

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.61 AU - 4.31 AU

Year: 4156 Days

Day: 11.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,792,015 km

• M1: 152,141 km (0.046 R)
• M2: 564,283 km (0.098 R)
• M3: 1,075,160 km (0.039 R)
• M4: 1,869,225 km (0.116 R)
• M5: 2,839,068 km (0.116 R)
• M6: 3,849,303 km (0.094 R)
• M7: 4,707,097 km (0.066 R)
• M8: 6,037,172 km (0.108 R)
• M9: 6,587,841 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.7

Radius: 9.4

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.85 AU - 4.55 AU

Year: 4595 Days

Day: 12.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,792,015 km

• M1: 119,828 km (0.084 R)
• M2: 592,408 km (0.111 R)
• M3: 978,968 km (0.104 R)
• M4: 1,457,532 km (0.082 R)
• M5: 2,045,751 km (0.102 R)
• M6: 2,768,458 km (0.107 R)
• M7: 3,591,845 km (0.092 R)
• M8: 4,617,488 km (0.094 R)
• M9: 5,315,212 km (0.096 R)
• M10: 5,855,261 km (0.035 R)
• M11: 6,225,815 km (0.04 R)
• M12: 6,672,514 km (0.101 R)
• M13: 7,301,573 km (0.11 R)
• M14: 7,731,218 km (0.108 R)
• M15: 8,389,449 km (0.07 R)
• M16: 9,009,532 km (0.056 R)
• M17: 9,896,946 km (0.048 R)
• M18: 10,631,173 km (0.092 R)
• M19: 11,621,660 km (0.103 R)
• M20: 12,531,963 km (0.051 R)
• M21: 13,885,076 km (0.1 R)
• M22: 14,391,315 km (0.104 R)
• M23: 16,427,641 km (0.116 R)
• M24: 17,166,356 km (0.047 R)
• M25: 21,195,774 km (0.074 R)
• M26: 22,139,587 km (0.038 R)
• M27: 22,830,580 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.4

Radius: 4.4

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7.72 AU - 10.22 AU

Year: 17346 Days

Day: 18.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,792,015 km

• M1: 54,753 km (0.056 R)
• M2: 256,261 km (0.084 R)
• M3: 557,551 km (0.103 R)
• M4: 721,361 km (0.106 R)
• M5: 941,270 km (0.091 R)
• M6: 1,385,575 km (0.12 R)
• M7: 1,904,830 km (0.055 R)
• M8: 6,736,991 km (0.094 R)
• M9: 7,146,739 km (0.057 R)
• M10: 7,946,340 km (0.087 R)
• M11: 8,952,685 km (0.075 R)
• M12: 11,610,590 km (0.082 R)
• M13: 13,142,323 km (0.107 R)
• M14: 15,280,076 km (0.075 R)
• M15: 16,207,433 km (0.073 R)
• M16: 17,875,300 km (0.115 R)
• M17: 21,480,160 km (0.087 R)
• M18: 21,885,570 km (0.116 R)
• M19: 23,062,307 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.1

Radius: 5.6

Gravity: 15.53 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.5 AU - 11.9 AU

Year: 19506 Days

Day: 24 Hours

Environment

Temp: -240 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,792,015 km

• M1: 100,081 km (0.056 R)
• M2: 363,972 km (0.108 R)
• M3: 760,855 km (0.11 R)
• M4: 1,730,847 km (0.036 R)
• M5: 3,818,186 km (0.117 R)
• M6: 7,085,703 km (0.111 R)
• M7: 7,681,551 km (0.112 R)
• M8: 12,103,814 km (0.091 R)
• M9: 13,223,105 km (0.061 R)
• M10: 15,140,053 km (0.094 R)
• M11: 15,818,030 km (0.059 R)
• M12: 22,955,344 km (0.079 R)
• M13: 24,458,354 km (0.085 R)
• M14: 26,132,654 km (0.079 R)
• M15: 36,723,734 km (0.11 R)
• M16: 37,128,097 km (0.094 R)
• M17: 48,548,249 km (0.119 R)
• M18: 54,433,728 km (0.096 R)
• M19: 59,470,988 km (0.118 R)
• M20: 61,532,147 km (0.096 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 146 - 18,122 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit