🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867

Radius: 9.4

Gravity: 9.81 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.53 AU - 0.81 AU

Year: 366 Days

Day: 10.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,431,090 km

• M1: 116,986 km (0.103 R)
• M2: 409,599 km (0.092 R)
• M3: 949,946 km (0.028 R)
• M4: 1,444,068 km (0.119 R)
• M5: 1,868,627 km (0.112 R)
• M6: 2,214,198 km (0.11 R)
• M7: 2,641,749 km (0.072 R)
• M8: 3,134,973 km (0.112 R)
• M9: 3,751,167 km (0.074 R)
• M10: 4,075,046 km (0.047 R)
• M11: 4,375,588 km (0.088 R)
• M12: 4,690,940 km (0.039 R)
• M13: 5,239,815 km (0.098 R)
• M14: 5,712,694 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.1

Radius: 14.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.66 AU - 0.8 AU

Year: 416 Days

Day: 10.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,431,090 km

• M1: 179,218 km (0.111 R)
• M2: 723,904 km (0.075 R)
• M3: 1,754,783 km (0.106 R)
• M4: 2,580,713 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.4

Radius: 10.8

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1 AU - 1.04 AU

Year: 687 Days

Day: 8.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 180 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,431,090 km

• M1: 134,339 km (0.052 R)
• M2: 607,517 km (0.071 R)
• M3: 952,938 km (0.049 R)
• M4: 1,327,831 km (0.115 R)
• M5: 1,886,280 km (0.074 R)
• M6: 2,273,588 km (0.098 R)
• M7: 2,769,505 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 14.8

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.72 AU - 1.88 AU

Year: 1610 Days

Day: 7 Hours

Environment

Temp: -192 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,431,090 km

• M1: 184,005 km (0.102 R)
• M2: 652,247 km (0.1 R)
• M3: 1,150,557 km (0.098 R)
• M4: 1,689,110 km (0.104 R)
• M5: 2,745,420 km (0.115 R)
• M6: 3,596,632 km (0.071 R)
• M7: 4,497,959 km (0.111 R)
• M8: 5,208,549 km (0.104 R)
• M9: 5,896,998 km (0.054 R)
• M10: 6,440,039 km (0.08 R)
• M11: 7,016,290 km (0.063 R)
• M12: 8,033,854 km (0.089 R)
• M13: 9,776,071 km (0.117 R)
• M14: 10,863,049 km (0.033 R)
• M15: 13,402,324 km (0.117 R)
• M16: 13,954,190 km (0.078 R)
• M17: 14,832,778 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895

Radius: 10.7

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.78 AU - 2.62 AU

Year: 2176 Days

Day: 14.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,431,090 km

• M1: 135,984 km (0.087 R)
• M2: 487,390 km (0.09 R)
• M3: 834,457 km (0.111 R)
• M4: 1,182,422 km (0.11 R)
• M5: 1,598,603 km (0.057 R)
• M6: 2,241,126 km (0.093 R)
• M7: 3,146,941 km (0.072 R)
• M8: 3,921,110 km (0.048 R)
• M9: 4,448,143 km (0.027 R)
• M10: 4,840,090 km (0.091 R)
• M11: 5,184,464 km (0.09 R)
• M12: 5,896,849 km (0.12 R)
• M13: 6,729,211 km (0.063 R)
• M14: 8,042,980 km (0.092 R)
• M15: 8,494,915 km (0.063 R)
• M16: 10,063,299 km (0.106 R)
• M17: 11,131,877 km (0.069 R)
• M18: 11,775,596 km (0.093 R)
• M19: 12,830,860 km (0.063 R)
• M20: 15,323,759 km (0.119 R)
• M21: 16,477,607 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.4

Radius: 8.8

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.54 AU - 5.28 AU

Year: 6176 Days

Day: 12.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,431,090 km

• M1: 126,560 km (0.081 R)
• M2: 442,361 km (0.111 R)
• M3: 898,784 km (0.118 R)
• M4: 1,561,203 km (0.097 R)
• M5: 2,690,219 km (0.108 R)
• M6: 4,162,561 km (0.061 R)
• M7: 5,228,446 km (0.111 R)
• M8: 6,661,444 km (0.105 R)
• M9: 7,223,483 km (0.027 R)
• M10: 9,019,405 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.9

Radius: 11.3

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.82 AU - 5.62 AU

Year: 7953 Days

Day: 6 Hours

Environment

Temp: -232 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,431,090 km

• M1: 173,683 km (0.09 R)
• M2: 854,952 km (0.055 R)
• M3: 1,381,686 km (0.045 R)
• M4: 2,163,484 km (0.104 R)
• M5: 3,973,918 km (0.084 R)
• M6: 4,648,006 km (0.089 R)
• M7: 5,145,419 km (0.109 R)
• M8: 6,533,986 km (0.114 R)
• M9: 8,974,077 km (0.084 R)
• M10: 11,181,543 km (0.091 R)
• M11: 11,641,557 km (0.043 R)
• M12: 12,981,654 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.8

Radius: 6.7

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.54 AU - 9.22 AU

Year: 14751 Days

Day: 20.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,431,090 km

• M1: 83,326 km (0.073 R)
• M2: 304,282 km (0.117 R)
• M3: 1,052,421 km (0.099 R)
• M4: 1,379,592 km (0.115 R)
• M5: 1,610,271 km (0.107 R)
• M6: 2,203,577 km (0.12 R)
• M7: 2,462,830 km (0.059 R)
• M8: 3,224,881 km (0.085 R)
• M9: 3,535,746 km (0.087 R)
• M10: 4,025,828 km (0.095 R)
• M11: 5,045,936 km (0.053 R)
• M12: 6,522,617 km (0.112 R)
• M13: 7,668,237 km (0.102 R)
• M14: 8,179,413 km (0.074 R)
• M15: 12,184,597 km (0.089 R)
• M16: 18,435,394 km (0.097 R)
• M17: 20,137,818 km (0.099 R)
• M18: 25,776,162 km (0.089 R)
• M19: 28,700,651 km (0.074 R)
• M20: 33,827,669 km (0.036 R)
• M21: 38,172,889 km (0.119 R)
• M22: 38,540,750 km (0.038 R)
• M23: 39,658,396 km (0.113 R)
• M24: 40,161,942 km (0.086 R)
• M25: 45,572,299 km (0.108 R)

Asteroid Belt

Center: 9.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.7

Radius: 6.1

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.86 AU - 12.64 AU

Year: 21883 Days

Day: 23.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,431,090 km

• M1: 76,145 km (0.083 R)
• M2: 267,032 km (0.053 R)
• M3: 1,742,965 km (0.094 R)
• M4: 3,437,161 km (0.107 R)
• M5: 5,510,438 km (0.094 R)
• M6: 11,618,219 km (0.112 R)
• M7: 14,114,260 km (0.095 R)
• M8: 14,573,525 km (0.107 R)
• M9: 16,152,381 km (0.116 R)
• M10: 17,465,252 km (0.049 R)
• M11: 18,847,537 km (0.117 R)
• M12: 27,469,311 km (0.106 R)
• M13: 29,228,282 km (0.099 R)
• M14: 36,279,728 km (0.097 R)
• M15: 43,003,554 km (0.111 R)
• M16: 46,946,355 km (0.104 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 12,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit