🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.51 AU - 0.79 AU

Year: 344 Days

Day: 38.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,451,859 km

• M1: 219,460 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.6

Radius: 8.5

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.02 AU - 1.08 AU

Year: 706 Days

Day: 12 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,451,859 km

• M1: 105,766 km (0.049 R)
• M2: 386,860 km (0.11 R)
• M3: 848,370 km (0.071 R)
• M4: 1,888,524 km (0.073 R)
• M5: 2,166,626 km (0.05 R)
• M6: 2,776,836 km (0.116 R)
• M7: 3,258,840 km (0.027 R)
• M8: 3,771,213 km (0.114 R)
• M9: 4,485,991 km (0.119 R)
• M10: 4,839,342 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.2

Radius: 11.8

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.95 AU - 1.33 AU

Year: 798 Days

Day: 9.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,451,859 km

• M1: 146,756 km (0.071 R)
• M2: 662,270 km (0.086 R)
• M3: 1,033,272 km (0.068 R)
• M4: 1,824,944 km (0.073 R)
• M5: 2,226,166 km (0.064 R)
• M6: 2,740,483 km (0.085 R)
• M7: 3,707,634 km (0.112 R)
• M8: 4,138,924 km (0.109 R)
• M9: 4,761,102 km (0.094 R)
• M10: 5,289,182 km (0.083 R)
• M11: 6,173,605 km (0.062 R)
• M12: 6,966,474 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.5

Radius: 14.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.44 AU - 1.8 AU

Year: 1353 Days

Day: 10 Hours

Environment

Temp: -189 °C

Axial Tilt: 86.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,451,859 km

• M1: 179,069 km (0.094 R)
• M2: 707,598 km (0.064 R)
• M3: 1,156,691 km (0.119 R)
• M4: 2,194,601 km (0.116 R)
• M5: 2,677,503 km (0.086 R)
• M6: 3,615,781 km (0.077 R)
• M7: 4,095,840 km (0.1 R)
• M8: 4,792,966 km (0.092 R)
• M9: 5,406,617 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.4

Radius: 11.7

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.68 AU - 5.54 AU

Year: 7578 Days

Day: 7.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,451,859 km

• M1: 167,101 km (0.038 R)
• M2: 912,098 km (0.075 R)
• M3: 1,657,844 km (0.111 R)
• M4: 2,506,064 km (0.049 R)
• M5: 4,295,404 km (0.071 R)
• M6: 4,813,461 km (0.072 R)
• M7: 5,373,107 km (0.118 R)
• M8: 6,496,138 km (0.102 R)
• M9: 8,315,697 km (0.1 R)
• M10: 10,024,404 km (0.08 R)
• M11: 10,894,315 km (0.103 R)
• M12: 12,147,646 km (0.113 R)
• M13: 14,773,837 km (0.108 R)
• M14: 16,602,820 km (0.092 R)
• M15: 24,194,164 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.3

Radius: 4.5

Gravity: 40.61 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.74 AU - 8.8 AU

Year: 14208 Days

Day: 23.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,451,859 km

• M1: 72,106 km (0.066 R)
• M2: 383,270 km (0.097 R)
• M3: 1,085,333 km (0.116 R)
• M4: 1,239,568 km (0.08 R)
• M5: 1,758,224 km (0.085 R)
• M6: 2,496,040 km (0.077 R)
• M7: 3,901,213 km (0.119 R)
• M8: 4,111,548 km (0.074 R)
• M9: 4,687,051 km (0.047 R)
• M10: 5,724,512 km (0.071 R)
• M11: 7,905,499 km (0.047 R)
• M12: 11,474,306 km (0.05 R)
• M13: 16,217,606 km (0.096 R)
• M14: 17,077,644 km (0.119 R)
• M15: 18,050,030 km (0.094 R)
• M16: 20,193,469 km (0.105 R)
• M17: 22,500,717 km (0.116 R)
• M18: 27,411,715 km (0.09 R)
• M19: 29,652,991 km (0.107 R)
• M20: 30,582,742 km (0.083 R)
• M21: 39,840,606 km (0.115 R)
• M22: 45,711,275 km (0.114 R)
• M23: 46,018,998 km (0.099 R)
• M24: 49,983,790 km (0.028 R)
• M25: 51,631,461 km (0.049 R)
• M26: 53,655,969 km (0.082 R)
• M27: 56,968,814 km (0.106 R)
• M28: 61,907,040 km (0.111 R)
• M29: 63,614,550 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 360.6

Radius: 4.6

Gravity: 17.04 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.62 AU - 8.72 AU

Year: 15319 Days

Day: 15.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,451,859 km

• M1: 57,146 km (0.107 R)
• M2: 300,841 km (0.096 R)
• M3: 474,375 km (0.09 R)
• M4: 1,617,602 km (0.096 R)
• M5: 2,041,113 km (0.069 R)
• M6: 2,702,037 km (0.109 R)
• M7: 3,729,176 km (0.038 R)
• M8: 4,085,219 km (0.04 R)
• M9: 5,090,516 km (0.075 R)
• M10: 5,882,188 km (0.061 R)
• M11: 6,634,516 km (0.09 R)
• M12: 7,074,633 km (0.082 R)
• M13: 10,185,221 km (0.099 R)
• M14: 10,933,809 km (0.09 R)
• M15: 13,462,013 km (0.081 R)
• M16: 14,428,266 km (0.094 R)
• M17: 16,354,338 km (0.09 R)
• M18: 20,207,830 km (0.068 R)
• M19: 23,329,638 km (0.079 R)
• M20: 23,695,106 km (0.05 R)
• M21: 29,010,468 km (0.101 R)
• M22: 32,963,442 km (0.105 R)
• M23: 35,187,663 km (0.096 R)
• M24: 37,385,256 km (0.096 R)
• M25: 39,028,140 km (0.094 R)
• M26: 42,457,222 km (0.111 R)
• M27: 43,413,452 km (0.084 R)
• M28: 47,675,196 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.6

Radius: 7.3

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 8.52 AU - 11.64 AU

Year: 20994 Days

Day: 15.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 90.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,451,859 km

• M1: 92,900 km (0.037 R)
• M2: 514,168 km (0.096 R)
• M3: 860,337 km (0.081 R)
• M4: 1,357,002 km (0.104 R)
• M5: 1,610,571 km (0.119 R)
• M6: 1,877,154 km (0.093 R)
• M7: 2,454,901 km (0.098 R)
• M8: 2,736,444 km (0.11 R)
• M9: 3,145,295 km (0.083 R)
• M10: 4,215,070 km (0.047 R)
• M11: 5,277,065 km (0.069 R)
• M12: 5,509,241 km (0.081 R)
• M13: 6,119,750 km (0.113 R)
• M14: 7,768,468 km (0.075 R)
• M15: 8,641,671 km (0.092 R)
• M16: 9,019,704 km (0.116 R)
• M17: 10,101,447 km (0.055 R)
• M18: 11,459,197 km (0.049 R)
• M19: 11,849,647 km (0.04 R)
• M20: 12,181,755 km (0.076 R)
• M21: 13,074,555 km (0.065 R)
• M22: 22,144,225 km (0.058 R)
• M23: 23,263,666 km (0.051 R)
• M24: 27,190,909 km (0.09 R)
• M25: 28,711,272 km (0.041 R)
• M26: 29,553,059 km (0.088 R)
• M27: 31,665,531 km (0.056 R)
• M28: 32,954,167 km (0.116 R)
• M29: 37,454,520 km (0.093 R)
• M30: 39,777,027 km (0.076 R)
• M31: 47,651,260 km (0.05 R)
• M32: 48,491,402 km (0.07 R)
• M33: 55,943,769 km (0.042 R)
• M34: 56,691,011 km (0.055 R)
• M35: 57,255,743 km (0.115 R)
• M36: 59,358,490 km (0.088 R)
• M37: 59,746,398 km (0.102 R)
• M38: 72,181,421 km (0.069 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 18,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit