🌌 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 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.47 AU - 0.67 AU

Year: 282 Days

Day: 37.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,375,188 km

• M1: 15,857 km (0.111 R)
• M2: 48,619 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.9

Radius: 8.8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.56 AU - 0.9 AU

Year: 409 Days

Day: 6.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,375,188 km

• M1: 109,506 km (0.045 R)
• M2: 444,006 km (0.09 R)
• M3: 855,849 km (0.036 R)
• M4: 1,297,762 km (0.119 R)
• M5: 1,682,378 km (0.085 R)
• M6: 2,229,457 km (0.106 R)
• M7: 2,673,613 km (0.069 R)
• M8: 3,626,851 km (0.054 R)
• M9: 4,340,732 km (0.03 R)
• M10: 5,192,692 km (0.068 R)
• M11: 5,819,956 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.2

Radius: 11.7

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.61 AU - 0.87 AU

Year: 418 Days

Day: 13.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,375,188 km

• M1: 160,519 km (0.101 R)
• M2: 659,427 km (0.105 R)
• M3: 1,412,503 km (0.053 R)
• M4: 1,976,038 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.2

Radius: 13.2

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.33 AU - 1.75 AU

Year: 1254 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,375,188 km

• M1: 164,109 km (0.106 R)
• M2: 582,534 km (0.096 R)
• M3: 1,166,863 km (0.061 R)
• M4: 1,900,491 km (0.09 R)
• M5: 2,423,486 km (0.026 R)
• M6: 2,938,401 km (0.052 R)
• M7: 3,354,583 km (0.053 R)
• M8: 4,651,447 km (0.084 R)
• M9: 5,552,774 km (0.057 R)
• M10: 6,087,736 km (0.116 R)
• M11: 6,702,433 km (0.072 R)
• M12: 7,602,414 km (0.112 R)
• M13: 8,316,146 km (0.116 R)
• M14: 9,556,162 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.1

Radius: 5.7

Gravity: 18.1 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.51 AU - 7.63 AU

Year: 11047 Days

Day: 23.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 68,375,188 km

• M1: 70,909 km (0.056 R)
• M2: 293,212 km (0.114 R)
• M3: 785,838 km (0.067 R)
• M4: 1,017,116 km (0.117 R)
• M5: 1,208,152 km (0.101 R)
• M6: 1,882,240 km (0.085 R)
• M7: 2,173,059 km (0.111 R)
• M8: 3,044,317 km (0.075 R)
• M9: 5,685,766 km (0.048 R)
• M10: 6,481,627 km (0.112 R)
• M11: 8,838,990 km (0.032 R)
• M12: 9,753,632 km (0.11 R)
• M13: 11,825,861 km (0.09 R)
• M14: 14,757,680 km (0.08 R)
• M15: 15,021,870 km (0.042 R)
• M16: 17,470,339 km (0.107 R)
• M17: 21,835,156 km (0.067 R)
• M18: 22,264,651 km (0.119 R)
• M19: 26,194,288 km (0.046 R)
• M20: 30,776,770 km (0.094 R)
• M21: 31,425,426 km (0.105 R)
• M22: 36,463,733 km (0.105 R)
• M23: 41,751,120 km (0.097 R)
• M24: 44,714,355 km (0.117 R)
• M25: 45,406,843 km (0.025 R)
• M26: 46,813,213 km (0.093 R)
• M27: 48,103,644 km (0.037 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881

Radius: 7.4

Gravity: 16.09 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 7.12 AU - 7.94 AU

Year: 13555 Days

Day: 19.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,375,188 km

• M1: 99,034 km (0.061 R)
• M2: 470,037 km (0.086 R)
• M3: 818,151 km (0.097 R)
• M4: 1,052,720 km (0.11 R)
• M5: 1,552,377 km (0.062 R)
• M6: 2,321,161 km (0.088 R)
• M7: 3,017,239 km (0.112 R)
• M8: 3,269,312 km (0.085 R)
• M9: 3,730,223 km (0.119 R)
• M10: 4,295,852 km (0.068 R)
• M11: 4,681,665 km (0.083 R)
• M12: 4,917,282 km (0.066 R)
• M13: 5,901,486 km (0.058 R)
• M14: 6,216,988 km (0.117 R)
• M15: 6,924,586 km (0.099 R)
• M16: 8,254,063 km (0.032 R)
• M17: 8,598,886 km (0.112 R)
• M18: 9,317,404 km (0.107 R)
• M19: 11,109,138 km (0.119 R)
• M20: 14,209,853 km (0.113 R)
• M21: 14,921,640 km (0.099 R)
• M22: 15,212,907 km (0.118 R)
• M23: 19,352,729 km (0.044 R)
• M24: 22,336,458 km (0.107 R)
• M25: 23,395,611 km (0.1 R)
• M26: 23,788,904 km (0.06 R)
• M27: 25,717,520 km (0.086 R)
• M28: 26,347,626 km (0.061 R)
• M29: 28,411,029 km (0.12 R)
• M30: 36,545,413 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.1

Radius: 5.6

Gravity: 13.84 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.77 AU - 12.65 AU

Year: 21402 Days

Day: 17.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,375,188 km

• M1: 69,713 km (0.088 R)
• M2: 387,758 km (0.12 R)
• M3: 1,049,728 km (0.12 R)
• M4: 2,224,969 km (0.118 R)
• M5: 3,023,373 km (0.118 R)
• M6: 6,589,038 km (0.106 R)
• M7: 8,607,861 km (0.059 R)
• M8: 8,866,516 km (0.103 R)
• M9: 9,618,694 km (0.111 R)
• M10: 13,814,765 km (0.106 R)
• M11: 15,880,712 km (0.111 R)
• M12: 16,745,836 km (0.062 R)
• M13: 18,228,501 km (0.067 R)
• M14: 18,655,453 km (0.105 R)
• M15: 22,217,229 km (0.051 R)
• M16: 27,302,210 km (0.063 R)
• M17: 32,359,665 km (0.057 R)
• M18: 35,701,981 km (0.076 R)
• M19: 38,844,284 km (0.102 R)
• M20: 41,135,674 km (0.067 R)
• M21: 42,612,804 km (0.113 R)
• M22: 56,441,781 km (0.109 R)
• M23: 62,217,605 km (0.098 R)
• M24: 64,950,459 km (0.101 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: 459 - 15,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit