🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.3

Radius: 10.1

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.47 AU - 0.75 AU

Year: 329 Days

Day: 6.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,999,603 km

• M1: 125,662 km (0.113 R)
• M2: 455,226 km (0.102 R)
• M3: 774,767 km (0.111 R)
• M4: 1,104,182 km (0.114 R)
• M5: 2,169,768 km (0.098 R)
• M6: 2,539,424 km (0.105 R)
• M7: 3,239,691 km (0.086 R)
• M8: 3,646,747 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.6

Radius: 10.7

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.55 AU - 0.71 AU

Year: 345 Days

Day: 9.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 82,999,603 km

• M1: 134,189 km (0.095 R)
• M2: 533,316 km (0.11 R)
• M3: 1,032,824 km (0.041 R)
• M4: 1,760,019 km (0.118 R)
• M5: 3,211,417 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.4

Radius: 9.4

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.22 AU - 1.3 AU

Year: 976 Days

Day: 6 Hours

Environment

Temp: -175 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,999,603 km

• M1: 117,135 km (0.098 R)
• M2: 470,336 km (0.107 R)
• M3: 1,146,518 km (0.084 R)
• M4: 2,106,188 km (0.098 R)
• M5: 3,006,169 km (0.109 R)
• M6: 3,313,144 km (0.078 R)
• M7: 3,726,633 km (0.112 R)
• M8: 4,492,274 km (0.117 R)
• M9: 5,017,513 km (0.055 R)
• M10: 5,583,142 km (0.047 R)
• M11: 6,333,824 km (0.053 R)
• M12: 6,820,017 km (0.078 R)
• M13: 7,172,620 km (0.081 R)
• M14: 7,938,860 km (0.098 R)
• M15: 8,304,627 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.5

Radius: 14.3

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.32 AU - 2.88 AU

Year: 2894 Days

Day: 9.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,999,603 km

• M1: 178,171 km (0.033 R)
• M2: 920,177 km (0.065 R)
• M3: 1,462,618 km (0.116 R)
• M4: 3,330,946 km (0.098 R)
• M5: 4,460,709 km (0.096 R)
• M6: 5,631,462 km (0.067 R)
• M7: 6,143,237 km (0.073 R)
• M8: 7,084,955 km (0.066 R)
• M9: 7,713,416 km (0.096 R)
• M10: 8,217,112 km (0.113 R)
• M11: 8,709,139 km (0.098 R)
• M12: 9,788,937 km (0.088 R)
• M13: 10,455,694 km (0.08 R)
• M14: 11,432,120 km (0.114 R)
• M15: 12,769,525 km (0.092 R)
• M16: 14,255,630 km (0.055 R)
• M17: 17,302,191 km (0.09 R)
• M18: 18,223,265 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 13.1

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.71 AU - 3.01 AU

Year: 3339 Days

Day: 7 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,999,603 km

• M1: 166,951 km (0.095 R)
• M2: 704,307 km (0.103 R)
• M3: 1,122,732 km (0.084 R)
• M4: 1,561,503 km (0.051 R)
• M5: 1,995,935 km (0.11 R)
• M6: 2,894,569 km (0.085 R)
• M7: 3,402,604 km (0.052 R)
• M8: 4,368,856 km (0.084 R)
• M9: 5,040,850 km (0.118 R)
• M10: 5,755,928 km (0.085 R)
• M11: 6,269,647 km (0.082 R)
• M12: 6,702,433 km (0.037 R)
• M13: 7,155,266 km (0.069 R)
• M14: 7,628,444 km (0.045 R)
• M15: 8,091,001 km (0.115 R)
• M16: 10,095,911 km (0.083 R)
• M17: 10,768,653 km (0.101 R)
• M18: 11,312,441 km (0.088 R)
• M19: 14,732,249 km (0.068 R)
• M20: 17,912,699 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.1

Radius: 10.5

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.02 AU - 4.06 AU

Year: 4597 Days

Day: 6.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,999,603 km

• M1: 130,599 km (0.117 R)
• M2: 836,102 km (0.074 R)
• M3: 1,287,738 km (0.052 R)
• M4: 2,366,938 km (0.108 R)
• M5: 2,801,968 km (0.113 R)
• M6: 3,703,445 km (0.077 R)
• M7: 4,340,582 km (0.116 R)
• M8: 5,516,122 km (0.12 R)
• M9: 6,011,590 km (0.094 R)
• M10: 6,925,484 km (0.07 R)
• M11: 7,364,105 km (0.073 R)
• M12: 9,106,770 km (0.038 R)
• M13: 10,052,977 km (0.12 R)
• M14: 10,973,153 km (0.11 R)
• M15: 11,805,516 km (0.034 R)
• M16: 13,753,280 km (0.077 R)
• M17: 15,447,476 km (0.11 R)
• M18: 16,315,293 km (0.085 R)
• M19: 16,791,314 km (0.111 R)
• M20: 17,896,244 km (0.069 R)
• M21: 18,338,754 km (0.093 R)
• M22: 19,048,895 km (0.041 R)
• M23: 19,777,287 km (0.095 R)
• M24: 20,455,564 km (0.09 R)
• M25: 20,869,801 km (0.108 R)
• M26: 22,656,747 km (0.085 R)
• M27: 24,234,705 km (0.098 R)
• M28: 25,326,770 km (0.071 R)
• M29: 27,608,586 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 970.3

Radius: 7.4

Gravity: 17.72 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 8.72 AU - 10.1 AU

Year: 19925 Days

Day: 22.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 54.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,999,603 km

• M1: 114,293 km (0.057 R)
• M2: 474,524 km (0.084 R)
• M3: 713,731 km (0.092 R)
• M4: 1,011,132 km (0.057 R)
• M5: 1,283,849 km (0.095 R)
• M6: 2,255,786 km (0.069 R)
• M7: 2,778,780 km (0.087 R)
• M8: 3,042,073 km (0.09 R)
• M9: 4,546,279 km (0.105 R)
• M10: 6,046,746 km (0.058 R)
• M11: 6,909,178 km (0.075 R)
• M12: 8,112,543 km (0.091 R)
• M13: 8,932,190 km (0.118 R)
• M14: 10,992,751 km (0.103 R)
• M15: 11,587,253 km (0.094 R)
• M16: 13,057,501 km (0.101 R)
• M17: 16,110,793 km (0.11 R)
• M18: 20,680,858 km (0.117 R)
• M19: 21,586,075 km (0.114 R)
• M20: 23,691,815 km (0.047 R)
• M21: 24,239,044 km (0.084 R)
• M22: 25,472,329 km (0.111 R)
• M23: 31,345,990 km (0.055 R)
• M24: 48,953,809 km (0.115 R)
• M25: 50,199,061 km (0.09 R)
• M26: 59,915,593 km (0.119 R)
• M27: 63,413,490 km (0.052 R)
• M28: 84,983,259 km (0.066 R)
• M29: 85,238,473 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.5

Radius: 6.6

Gravity: 22.69 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 7.3 AU - 11.76 AU

Year: 20307 Days

Day: 23.8 Hours

Environment

Temp: -243 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 82,999,603 km

• M1: 82,129 km (0.097 R)
• M2: 295,605 km (0.057 R)
• M3: 696,228 km (0.06 R)
• M4: 993,629 km (0.073 R)
• M5: 1,454,390 km (0.102 R)
• M6: 2,112,172 km (0.066 R)
• M7: 2,979,391 km (0.094 R)
• M8: 4,030,466 km (0.119 R)
• M9: 6,151,016 km (0.086 R)
• M10: 6,419,993 km (0.046 R)
• M11: 7,677,812 km (0.12 R)
• M12: 9,982,217 km (0.065 R)
• M13: 10,671,265 km (0.1 R)
• M14: 11,935,367 km (0.092 R)
• M15: 20,564,621 km (0.103 R)
• M16: 21,677,928 km (0.108 R)
• M17: 24,468,228 km (0.118 R)
• M18: 25,258,404 km (0.119 R)
• M19: 26,182,171 km (0.057 R)
• M20: 31,802,413 km (0.105 R)
• M21: 32,069,296 km (0.072 R)
• M22: 33,564,227 km (0.069 R)
• M23: 35,390,069 km (0.077 R)
• M24: 37,726,937 km (0.05 R)
• M25: 44,180,889 km (0.083 R)
• M26: 45,183,194 km (0.102 R)
• M27: 61,259,131 km (0.095 R)
• M28: 66,125,700 km (0.047 R)
• M29: 69,884,047 km (0.111 R)
• M30: 74,720,097 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 753.2

Radius: 5.7

Gravity: 23.18 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 8.65 AU - 11.29 AU

Year: 21730 Days

Day: 19.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,999,603 km

• M1: 70,909 km (0.074 R)
• M2: 339,737 km (0.026 R)
• M3: 1,040,902 km (0.074 R)
• M4: 1,446,013 km (0.094 R)
• M5: 1,721,423 km (0.109 R)
• M6: 2,589,539 km (0.034 R)
• M7: 4,070,408 km (0.104 R)
• M8: 4,444,104 km (0.109 R)
• M9: 4,657,431 km (0.085 R)
• M10: 5,143,025 km (0.087 R)
• M11: 8,090,253 km (0.119 R)
• M12: 9,357,197 km (0.084 R)
• M13: 10,374,912 km (0.12 R)
• M14: 11,071,439 km (0.11 R)
• M15: 12,487,084 km (0.102 R)
• M16: 13,793,073 km (0.116 R)
• M17: 14,019,265 km (0.11 R)
• M18: 14,401,637 km (0.1 R)
• M19: 16,084,464 km (0.041 R)
• M20: 18,986,812 km (0.032 R)
• M21: 21,405,062 km (0.06 R)
• M22: 22,220,370 km (0.062 R)
• M23: 28,515,449 km (0.069 R)
• M24: 29,005,830 km (0.055 R)
• M25: 34,223,505 km (0.091 R)
• M26: 45,628,099 km (0.072 R)
• M27: 46,130,448 km (0.102 R)
• M28: 75,991,978 km (0.092 R)
• M29: 78,601,564 km (0.096 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 17,618 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit