🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.47 AU - 0.73 AU

Year: 305 Days

Day: 38.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.2

Radius: 8.2

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.22 AU - 1.5 AU

Year: 1040 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,626,986 km

• M1: 102,026 km (0.104 R)
• M2: 362,326 km (0.096 R)
• M3: 634,744 km (0.065 R)
• M4: 957,576 km (0.113 R)
• M5: 1,374,804 km (0.06 R)
• M6: 1,643,482 km (0.085 R)
• M7: 2,863,602 km (0.112 R)
• M8: 3,266,170 km (0.028 R)
• M9: 3,917,519 km (0.111 R)
• M10: 4,583,679 km (0.091 R)
• M11: 5,672,153 km (0.088 R)
• M12: 7,129,835 km (0.117 R)
• M13: 7,410,929 km (0.061 R)
• M14: 7,674,969 km (0.045 R)
• M15: 8,401,716 km (0.033 R)
• M16: 9,010,130 km (0.112 R)
• M17: 9,311,271 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.7

Radius: 12.3

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.09 AU - 2.67 AU

Year: 2409 Days

Day: 9.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,626,986 km

• M1: 153,039 km (0.11 R)
• M2: 549,174 km (0.069 R)
• M3: 990,188 km (0.101 R)
• M4: 2,059,364 km (0.049 R)
• M5: 2,915,662 km (0.112 R)
• M6: 4,671,942 km (0.045 R)
• M7: 5,327,180 km (0.112 R)
• M8: 5,864,685 km (0.075 R)
• M9: 6,766,312 km (0.108 R)
• M10: 7,309,202 km (0.101 R)
• M11: 8,744,893 km (0.091 R)
• M12: 9,777,717 km (0.066 R)
• M13: 12,209,131 km (0.113 R)
• M14: 13,145,913 km (0.056 R)
• M15: 13,542,796 km (0.047 R)
• M16: 15,796,189 km (0.064 R)
• M17: 18,234,634 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.9

Radius: 12.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.05 AU - 2.91 AU

Year: 2562 Days

Day: 9 Hours

Environment

Temp: -188 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,626,986 km

• M1: 159,322 km (0.117 R)
• M2: 809,175 km (0.119 R)
• M3: 1,939,237 km (0.1 R)
• M4: 2,428,422 km (0.074 R)
• M5: 3,035,341 km (0.066 R)
• M6: 3,592,144 km (0.117 R)
• M7: 6,255,136 km (0.118 R)
• M8: 7,011,951 km (0.037 R)
• M9: 7,490,365 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.7

Radius: 8.5

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.2 AU - 3.02 AU

Year: 2766 Days

Day: 5.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,626,986 km

• M1: 106,065 km (0.094 R)
• M2: 391,049 km (0.084 R)
• M3: 662,868 km (0.066 R)
• M4: 1,037,312 km (0.089 R)
• M5: 1,334,563 km (0.054 R)
• M6: 2,067,592 km (0.055 R)
• M7: 2,373,969 km (0.106 R)
• M8: 3,897,922 km (0.102 R)
• M9: 5,134,049 km (0.055 R)
• M10: 6,698,394 km (0.087 R)
• M11: 7,466,280 km (0.086 R)
• M12: 8,095,938 km (0.025 R)
• M13: 12,640,422 km (0.097 R)
• M14: 14,565,746 km (0.103 R)
• M15: 15,002,422 km (0.095 R)
• M16: 15,598,271 km (0.067 R)
• M17: 18,140,238 km (0.097 R)
• M18: 19,568,000 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.8

Radius: 13.5

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.54 AU - 4.18 AU

Year: 4975 Days

Day: 6.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,626,986 km

• M1: 167,849 km (0.111 R)
• M2: 607,218 km (0.12 R)
• M3: 1,335,460 km (0.111 R)
• M4: 2,476,294 km (0.05 R)
• M5: 3,004,823 km (0.088 R)
• M6: 3,553,548 km (0.119 R)
• M7: 4,128,452 km (0.112 R)
• M8: 4,610,906 km (0.093 R)
• M9: 5,037,559 km (0.058 R)
• M10: 5,765,801 km (0.114 R)
• M11: 6,674,758 km (0.11 R)
• M12: 7,708,180 km (0.106 R)
• M13: 9,472,537 km (0.104 R)
• M14: 10,506,857 km (0.079 R)
• M15: 11,452,166 km (0.086 R)
• M16: 11,904,101 km (0.074 R)
• M17: 12,496,509 km (0.055 R)
• M18: 13,924,420 km (0.098 R)
• M19: 14,967,716 km (0.102 R)
• M20: 17,209,589 km (0.104 R)
• M21: 17,694,436 km (0.105 R)
• M22: 18,747,904 km (0.063 R)
• M23: 19,434,559 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 10.1

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.68 AU - 5.52 AU

Year: 7556 Days

Day: 8.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,626,986 km

• M1: 125,662 km (0.076 R)
• M2: 643,420 km (0.099 R)
• M3: 2,324,751 km (0.083 R)
• M4: 2,990,461 km (0.056 R)
• M5: 4,385,162 km (0.114 R)
• M6: 5,213,187 km (0.113 R)
• M7: 5,792,130 km (0.065 R)
• M8: 9,313,215 km (0.109 R)
• M9: 10,462,127 km (0.071 R)
• M10: 11,429,128 km (0.066 R)
• M11: 15,121,353 km (0.082 R)
• M12: 16,763,189 km (0.101 R)
• M13: 17,779,109 km (0.037 R)
• M14: 20,397,520 km (0.06 R)
• M15: 22,114,604 km (0.113 R)
• M16: 22,469,301 km (0.047 R)
• M17: 23,703,483 km (0.109 R)
• M18: 26,625,279 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.1

Radius: 7.8

Gravity: 10.78 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 9.01 AU - 9.89 AU

Year: 19057 Days

Day: 19.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,626,986 km

• M1: 97,388 km (0.103 R)
• M2: 351,705 km (0.062 R)
• M3: 694,882 km (0.099 R)
• M4: 945,459 km (0.102 R)
• M5: 1,203,365 km (0.047 R)
• M6: 1,493,136 km (0.118 R)
• M7: 2,299,768 km (0.08 R)
• M8: 2,799,425 km (0.065 R)
• M9: 3,180,152 km (0.09 R)
• M10: 4,704,255 km (0.052 R)
• M11: 5,823,546 km (0.027 R)
• M12: 6,531,593 km (0.072 R)
• M13: 8,118,228 km (0.118 R)
• M14: 8,894,042 km (0.079 R)
• M15: 17,889,661 km (0.112 R)
• M16: 18,493,289 km (0.044 R)
• M17: 18,755,983 km (0.082 R)
• M18: 22,702,075 km (0.112 R)
• M19: 23,205,921 km (0.108 R)
• M20: 29,846,870 km (0.069 R)
• M21: 35,857,114 km (0.113 R)
• M22: 36,266,114 km (0.119 R)
• M23: 39,505,357 km (0.093 R)
• M24: 42,779,456 km (0.07 R)
• M25: 50,371,398 km (0.12 R)
• M26: 51,920,933 km (0.118 R)
• M27: 53,501,883 km (0.081 R)
• M28: 54,933,834 km (0.104 R)
• M29: 68,780,463 km (0.061 R)
• M30: 71,544,434 km (0.113 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 20,014 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit