🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.8

Radius: 8.3

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.61 AU - 0.63 AU

Year: 331 Days

Day: 14 Hours

Environment

Temp: -154 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,372,686 km

• M1: 103,372 km (0.09 R)
• M2: 389,104 km (0.085 R)
• M3: 665,711 km (0.109 R)
• M4: 969,544 km (0.091 R)
• M5: 1,395,599 km (0.073 R)
• M6: 1,659,489 km (0.076 R)
• M7: 1,957,189 km (0.117 R)
• M8: 2,589,390 km (0.045 R)
• M9: 3,298,334 km (0.1 R)
• M10: 3,854,539 km (0.109 R)
• M11: 4,130,696 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.3

Radius: 14

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.98 AU - 1.34 AU

Year: 847 Days

Day: 6.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,372,686 km

• M1: 174,132 km (0.113 R)
• M2: 633,697 km (0.109 R)
• M3: 1,142,778 km (0.098 R)
• M4: 1,653,954 km (0.082 R)
• M5: 2,134,911 km (0.084 R)
• M6: 2,709,965 km (0.119 R)
• M7: 3,145,594 km (0.099 R)
• M8: 3,775,551 km (0.11 R)
• M9: 4,624,519 km (0.092 R)
• M10: 5,308,929 km (0.077 R)
• M11: 5,815,617 km (0.11 R)
• M12: 6,747,014 km (0.118 R)
• M13: 8,535,307 km (0.118 R)
• M14: 9,455,483 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.4

Radius: 8.6

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.15 AU - 1.25 AU

Year: 892 Days

Day: 13.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,372,686 km

• M1: 106,962 km (0.093 R)
• M2: 525,089 km (0.1 R)
• M3: 961,765 km (0.119 R)
• M4: 1,498,522 km (0.059 R)
• M5: 2,140,147 km (0.117 R)
• M6: 2,754,246 km (0.051 R)
• M7: 3,611,442 km (0.108 R)
• M8: 4,584,128 km (0.111 R)
• M9: 5,103,681 km (0.107 R)
• M10: 5,582,544 km (0.095 R)
• M11: 5,925,123 km (0.119 R)
• M12: 6,324,549 km (0.089 R)
• M13: 7,558,732 km (0.095 R)
• M14: 8,518,552 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.4

Radius: 14

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.48 AU - 1.62 AU

Year: 1309 Days

Day: 9.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,372,686 km

• M1: 174,132 km (0.085 R)
• M2: 810,671 km (0.112 R)
• M3: 1,630,467 km (0.1 R)
• M4: 2,071,931 km (0.085 R)
• M5: 3,219,047 km (0.111 R)
• M6: 5,439,678 km (0.09 R)
• M7: 7,336,130 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.3

Radius: 12.3

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.57 AU - 3.31 AU

Year: 3419 Days

Day: 12.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,372,686 km

• M1: 153,039 km (0.058 R)
• M2: 536,757 km (0.039 R)
• M3: 969,544 km (0.098 R)
• M4: 1,424,172 km (0.098 R)
• M5: 2,558,722 km (0.093 R)
• M6: 3,138,264 km (0.099 R)
• M7: 3,708,830 km (0.115 R)
• M8: 4,649,951 km (0.117 R)
• M9: 5,872,764 km (0.106 R)
• M10: 6,270,395 km (0.116 R)
• M11: 6,771,398 km (0.106 R)
• M12: 7,854,187 km (0.119 R)
• M13: 9,653,551 km (0.03 R)
• M14: 10,747,410 km (0.069 R)
• M15: 13,001,701 km (0.097 R)
• M16: 14,669,717 km (0.095 R)
• M17: 15,058,970 km (0.112 R)
• M18: 15,455,106 km (0.094 R)
• M19: 19,051,738 km (0.117 R)
• M20: 19,809,152 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.1

Radius: 9.3

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.79 AU - 3.49 AU

Year: 3774 Days

Day: 10.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 109.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,372,686 km

• M1: 115,789 km (0.118 R)
• M2: 580,739 km (0.118 R)
• M3: 999,164 km (0.111 R)
• M4: 1,340,098 km (0.088 R)
• M5: 1,685,519 km (0.092 R)
• M6: 3,042,372 km (0.082 R)
• M7: 3,544,123 km (0.084 R)
• M8: 4,100,328 km (0.049 R)
• M9: 4,763,196 km (0.12 R)
• M10: 6,484,021 km (0.107 R)
• M11: 7,620,665 km (0.046 R)
• M12: 8,074,994 km (0.098 R)
• M13: 9,076,552 km (0.071 R)
• M14: 10,410,665 km (0.1 R)
• M15: 11,058,424 km (0.115 R)
• M16: 12,010,016 km (0.075 R)
• M17: 14,867,784 km (0.075 R)
• M18: 15,302,217 km (0.104 R)
• M19: 17,482,306 km (0.1 R)
• M20: 20,189,878 km (0.105 R)
• M21: 20,992,770 km (0.05 R)
• M22: 21,747,342 km (0.087 R)
• M23: 22,307,286 km (0.046 R)
• M24: 23,092,975 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427.1

Radius: 6.7

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.07 AU - 7.43 AU

Year: 10598 Days

Day: 20.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,372,686 km

• M1: 84,224 km (0.076 R)
• M2: 295,755 km (0.053 R)
• M3: 634,594 km (0.065 R)
• M4: 996,023 km (0.078 R)
• M5: 1,241,812 km (0.079 R)
• M6: 1,967,960 km (0.031 R)
• M7: 2,414,360 km (0.047 R)
• M8: 3,321,522 km (0.097 R)
• M9: 3,852,145 km (0.088 R)
• M10: 4,465,796 km (0.107 R)
• M11: 4,693,932 km (0.045 R)
• M12: 5,081,241 km (0.119 R)
• M13: 7,543,772 km (0.111 R)
• M14: 8,897,184 km (0.118 R)
• M15: 10,960,737 km (0.083 R)
• M16: 12,021,236 km (0.062 R)
• M17: 12,689,490 km (0.076 R)
• M18: 14,779,821 km (0.092 R)
• M19: 16,205,339 km (0.061 R)
• M20: 19,629,185 km (0.117 R)
• M21: 19,934,515 km (0.074 R)
• M22: 20,243,135 km (0.113 R)
• M23: 25,805,932 km (0.104 R)
• M24: 30,335,606 km (0.114 R)
• M25: 31,155,851 km (0.104 R)
• M26: 36,621,260 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.1

Radius: 4.7

Gravity: 30.2 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.92 AU - 8.12 AU

Year: 15405 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 68.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,372,686 km

• M1: 58,493 km (0.039 R)
• M2: 327,619 km (0.111 R)
• M3: 499,657 km (0.035 R)
• M4: 789,278 km (0.115 R)
• M5: 1,944,623 km (0.101 R)
• M6: 3,137,217 km (0.103 R)
• M7: 3,814,147 km (0.05 R)
• M8: 5,234,130 km (0.058 R)
• M9: 11,538,633 km (0.094 R)
• M10: 11,845,608 km (0.08 R)
• M11: 15,147,981 km (0.097 R)
• M12: 17,446,104 km (0.083 R)
• M13: 18,261,113 km (0.088 R)
• M14: 19,878,715 km (0.099 R)
• M15: 22,719,279 km (0.08 R)
• M16: 23,986,971 km (0.096 R)
• M17: 26,133,252 km (0.117 R)
• M18: 30,803,099 km (0.117 R)
• M19: 34,459,570 km (0.107 R)
• M20: 36,918,959 km (0.106 R)
• M21: 38,667,459 km (0.088 R)
• M22: 39,909,870 km (0.062 R)
• M23: 40,329,791 km (0.119 R)
• M24: 42,328,718 km (0.052 R)
• M25: 50,821,538 km (0.062 R)
• M26: 54,858,437 km (0.107 R)
• M27: 56,249,996 km (0.094 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: 481 - 15,753 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit