🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.2

Radius: 14.7

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.46 AU - 0.7 AU

Year: 305 Days

Day: 7.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 22,508,849 km

• M1: 182,958 km (0.065 R)
• M2: 1,020,856 km (0.114 R)
• M3: 1,555,070 km (0.064 R)
• M4: 2,370,977 km (0.115 R)
• M5: 2,874,074 km (0.058 R)
• M6: 3,732,467 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.8

Radius: 8.1

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.48 AU - 0.68 AU

Year: 305 Days

Day: 12.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,508,849 km

• M1: 100,679 km (0.099 R)
• M2: 392,246 km (0.05 R)
• M3: 1,031,477 km (0.031 R)
• M4: 1,357,601 km (0.105 R)
• M5: 1,758,972 km (0.098 R)
• M6: 2,764,269 km (0.066 R)
• M7: 3,156,066 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.3

Radius: 11.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.61 AU - 0.89 AU

Year: 448 Days

Day: 13.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,508,849 km

• M1: 144,212 km (0.115 R)
• M2: 507,436 km (0.037 R)
• M3: 877,840 km (0.096 R)
• M4: 1,626,727 km (0.086 R)
• M5: 2,597,169 km (0.115 R)
• M6: 3,333,639 km (0.061 R)
• M7: 4,153,884 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 14.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.71 AU - 1.17 AU

Year: 629 Days

Day: 10.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 22,508,849 km

• M1: 176,675 km (0.118 R)
• M2: 743,801 km (0.097 R)
• M3: 1,527,245 km (0.104 R)
• M4: 2,563,509 km (0.11 R)
• M5: 3,425,193 km (0.073 R)
• M6: 4,101,824 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.6

Radius: 13.1

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.83 AU - 1.29 AU

Year: 753 Days

Day: 10.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,508,849 km

• M1: 162,912 km (0.066 R)
• M2: 606,171 km (0.053 R)
• M3: 1,167,163 km (0.069 R)
• M4: 1,763,460 km (0.1 R)
• M5: 2,331,632 km (0.119 R)
• M6: 3,070,945 km (0.094 R)
• M7: 3,724,089 km (0.116 R)
• M8: 4,435,427 km (0.099 R)
• M9: 4,982,357 km (0.071 R)
• M10: 5,497,572 km (0.085 R)
• M11: 6,528,152 km (0.104 R)
• M12: 7,101,261 km (0.063 R)
• M13: 8,048,216 km (0.076 R)
• M14: 8,552,510 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.9

Radius: 13.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.68 AU - 3.46 AU

Year: 3713 Days

Day: 5.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,508,849 km

• M1: 172,935 km (0.053 R)
• M2: 1,440,478 km (0.106 R)
• M3: 2,028,547 km (0.083 R)
• M4: 2,625,293 km (0.083 R)
• M5: 3,385,699 km (0.065 R)
• M6: 6,226,263 km (0.066 R)
• M7: 7,361,861 km (0.107 R)
• M8: 8,066,168 km (0.086 R)
• M9: 9,382,629 km (0.116 R)
• M10: 10,767,008 km (0.097 R)
• M11: 12,595,393 km (0.079 R)
• M12: 13,398,434 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.1

Radius: 11.6

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.72 AU - 5.5 AU

Year: 7973 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 22,508,849 km

• M1: 144,212 km (0.114 R)
• M2: 665,561 km (0.059 R)
• M3: 1,213,089 km (0.093 R)
• M4: 1,693,747 km (0.107 R)
• M5: 2,300,217 km (0.119 R)
• M6: 2,963,983 km (0.098 R)
• M7: 3,583,617 km (0.045 R)
• M8: 4,234,817 km (0.083 R)
• M9: 4,617,189 km (0.094 R)
• M10: 6,279,969 km (0.057 R)
• M11: 7,459,847 km (0.086 R)
• M12: 8,565,675 km (0.048 R)
• M13: 9,452,940 km (0.07 R)
• M14: 10,449,561 km (0.079 R)
• M15: 11,306,457 km (0.107 R)
• M16: 12,763,092 km (0.077 R)
• M17: 14,159,588 km (0.088 R)
• M18: 14,708,762 km (0.067 R)
• M19: 15,463,034 km (0.066 R)
• M20: 16,709,783 km (0.05 R)
• M21: 19,402,694 km (0.09 R)
• M22: 20,004,526 km (0.103 R)
• M23: 20,852,298 km (0.109 R)
• M24: 24,746,480 km (0.038 R)
• M25: 27,003,612 km (0.037 R)
• M26: 30,997,128 km (0.065 R)
• M27: 32,656,916 km (0.059 R)
• M28: 36,040,371 km (0.077 R)
• M29: 38,343,131 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 580.8

Radius: 6.4

Gravity: 14.18 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7.46 AU - 7.56 AU

Year: 14206 Days

Day: 24.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 22,508,849 km

• M1: 93,947 km (0.068 R)
• M2: 336,745 km (0.111 R)
• M3: 648,656 km (0.079 R)
• M4: 1,363,435 km (0.063 R)
• M5: 1,609,972 km (0.107 R)
• M6: 2,063,104 km (0.09 R)
• M7: 2,430,517 km (0.043 R)
• M8: 2,979,541 km (0.089 R)
• M9: 3,449,727 km (0.11 R)
• M10: 4,201,157 km (0.045 R)
• M11: 5,023,347 km (0.031 R)
• M12: 5,296,662 km (0.108 R)
• M13: 5,910,612 km (0.07 R)
• M14: 9,501,260 km (0.115 R)
• M15: 9,973,241 km (0.081 R)
• M16: 11,424,341 km (0.039 R)
• M17: 13,267,386 km (0.086 R)
• M18: 15,228,914 km (0.111 R)
• M19: 17,221,856 km (0.103 R)
• M20: 19,299,173 km (0.078 R)
• M21: 21,094,497 km (0.059 R)
• M22: 21,537,905 km (0.105 R)
• M23: 25,711,087 km (0.1 R)
• M24: 27,248,504 km (0.106 R)
• M25: 27,986,620 km (0.12 R)
• M26: 28,414,320 km (0.112 R)
• M27: 29,834,453 km (0.082 R)
• M28: 32,461,840 km (0.084 R)
• M29: 32,933,971 km (0.104 R)
• M30: 34,013,021 km (0.09 R)
• M31: 39,228,302 km (0.077 R)
• M32: 41,955,471 km (0.112 R)
• M33: 44,806,507 km (0.12 R)
• M34: 48,394,911 km (0.092 R)
• M35: 55,462,812 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 12.5

Radius: 4.4

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 9.85 AU - 11.35 AU

Year: 23822 Days

Day: 23.8 Hours

Environment

Temp: -244 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,508,849 km

• M1: 54,753 km (0.119 R)
• M2: 369,058 km (0.036 R)
• M3: 537,206 km (0.117 R)
• M4: 6,164,479 km (0.106 R)
• M5: 7,271,952 km (0.096 R)
• M6: 11,768,116 km (0.078 R)
• M7: 13,080,239 km (0.068 R)
• M8: 21,383,071 km (0.057 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: 377 - 16,349 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit