🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799

Radius: 13.3

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.5 AU - 0.62 AU

Year: 289 Days

Day: 8.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,839,451 km

• M1: 165,455 km (0.054 R)
• M2: 682,465 km (0.12 R)
• M3: 1,103,135 km (0.087 R)
• M4: 1,570,478 km (0.108 R)
• M5: 2,032,586 km (0.094 R)
• M6: 2,532,692 km (0.045 R)
• M7: 2,953,960 km (0.108 R)
• M8: 3,533,352 km (0.05 R)
• M9: 4,087,612 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394

Radius: 14.3

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.18 AU - 1.2 AU

Year: 896 Days

Day: 11.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,839,451 km

• M1: 180,116 km (0.058 R)
• M2: 630,256 km (0.081 R)
• M3: 1,213,089 km (0.061 R)
• M4: 1,708,408 km (0.042 R)
• M5: 2,195,050 km (0.086 R)
• M6: 2,653,567 km (0.109 R)
• M7: 3,457,207 km (0.04 R)
• M8: 3,938,762 km (0.089 R)
• M9: 4,387,107 km (0.096 R)
• M10: 5,159,182 km (0.11 R)
• M11: 6,136,953 km (0.113 R)
• M12: 7,389,088 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.7

Radius: 8.6

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.3 AU - 1.54 AU

Year: 1168 Days

Day: 12.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,839,451 km

• M1: 106,962 km (0.104 R)
• M2: 456,872 km (0.081 R)
• M3: 754,272 km (0.08 R)
• M4: 1,160,281 km (0.102 R)
• M5: 1,432,998 km (0.112 R)
• M6: 2,524,464 km (0.057 R)
• M7: 2,859,713 km (0.085 R)
• M8: 3,186,883 km (0.076 R)
• M9: 3,458,404 km (0.097 R)
• M10: 3,887,899 km (0.045 R)
• M11: 4,737,316 km (0.118 R)
• M12: 5,162,024 km (0.12 R)
• M13: 5,483,510 km (0.111 R)
• M14: 5,856,308 km (0.05 R)
• M15: 6,285,803 km (0.082 R)
• M16: 6,590,684 km (0.114 R)
• M17: 6,905,438 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.3

Radius: 11.7

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.6 AU - 1.76 AU

Year: 1503 Days

Day: 13.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,839,451 km

• M1: 146,606 km (0.097 R)
• M2: 535,560 km (0.109 R)
• M3: 1,507,947 km (0.095 R)
• M4: 1,904,231 km (0.113 R)
• M5: 3,384,951 km (0.112 R)
• M6: 3,824,769 km (0.118 R)
• M7: 4,428,247 km (0.075 R)
• M8: 5,760,715 km (0.104 R)
• M9: 7,895,925 km (0.062 R)
• M10: 9,533,274 km (0.098 R)
• M11: 9,905,025 km (0.076 R)
• M12: 11,351,935 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.8

Radius: 8.8

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.25 AU - 2.77 AU

Year: 2745 Days

Day: 7 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,839,451 km

• M1: 111,301 km (0.1 R)
• M2: 448,195 km (0.111 R)
• M3: 818,151 km (0.112 R)
• M4: 1,680,732 km (0.113 R)
• M5: 2,241,724 km (0.062 R)
• M6: 3,192,119 km (0.113 R)
• M7: 3,750,568 km (0.026 R)
• M8: 5,274,073 km (0.096 R)
• M9: 8,208,884 km (0.085 R)

Asteroid Belt

Center: 3 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.4

Radius: 13

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.74 AU - 4.22 AU

Year: 4481 Days

Day: 5.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,839,451 km

• M1: 165,455 km (0.082 R)
• M2: 590,463 km (0.091 R)
• M3: 1,109,717 km (0.089 R)
• M4: 1,936,096 km (0.069 R)
• M5: 3,067,205 km (0.088 R)
• M6: 8,425,801 km (0.098 R)
• M7: 9,947,361 km (0.056 R)
• M8: 10,926,628 km (0.098 R)
• M9: 11,691,074 km (0.088 R)
• M10: 12,879,629 km (0.12 R)
• M11: 14,516,529 km (0.107 R)
• M12: 15,000,926 km (0.077 R)
• M13: 18,511,689 km (0.09 R)
• M14: 21,828,573 km (0.063 R)
• M15: 27,273,188 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.9

Radius: 7.7

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 9.06 AU - 9.14 AU

Year: 18948 Days

Day: 22.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 80,839,451 km

• M1: 112,498 km (0.064 R)
• M2: 1,086,081 km (0.108 R)
• M3: 1,836,613 km (0.081 R)
• M4: 2,097,362 km (0.08 R)
• M5: 2,630,080 km (0.092 R)
• M6: 4,648,903 km (0.111 R)
• M7: 5,004,049 km (0.082 R)
• M8: 6,140,843 km (0.08 R)
• M9: 6,608,636 km (0.06 R)
• M10: 8,577,194 km (0.092 R)
• M11: 8,866,367 km (0.103 R)
• M12: 9,211,788 km (0.082 R)
• M13: 9,515,173 km (0.069 R)
• M14: 10,302,656 km (0.052 R)
• M15: 10,739,930 km (0.058 R)
• M16: 11,828,404 km (0.103 R)
• M17: 12,614,392 km (0.116 R)
• M18: 15,251,353 km (0.031 R)
• M19: 15,604,853 km (0.069 R)
• M20: 18,076,958 km (0.086 R)
• M21: 19,118,757 km (0.12 R)
• M22: 22,211,843 km (0.075 R)
• M23: 29,806,179 km (0.107 R)
• M24: 32,290,252 km (0.039 R)
• M25: 35,154,004 km (0.098 R)
• M26: 39,097,703 km (0.079 R)
• M27: 48,001,618 km (0.061 R)
• M28: 51,245,798 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584

Radius: 6.1

Gravity: 15.69 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 8.48 AU - 12.66 AU

Year: 23720 Days

Day: 24.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,839,451 km

• M1: 75,846 km (0.072 R)
• M2: 297,550 km (0.079 R)
• M3: 562,787 km (0.114 R)
• M4: 924,216 km (0.1 R)
• M5: 1,415,046 km (0.058 R)
• M6: 1,811,032 km (0.085 R)
• M7: 3,250,163 km (0.104 R)
• M8: 3,628,347 km (0.042 R)
• M9: 8,841,234 km (0.106 R)
• M10: 9,176,184 km (0.104 R)
• M11: 9,519,511 km (0.045 R)
• M12: 10,789,298 km (0.1 R)
• M13: 11,107,492 km (0.11 R)
• M14: 12,031,708 km (0.046 R)
• M15: 17,433,687 km (0.057 R)
• M16: 25,470,533 km (0.11 R)
• M17: 37,090,997 km (0.059 R)
• M18: 37,379,721 km (0.11 R)
• M19: 41,117,424 km (0.101 R)
• M20: 44,769,407 km (0.11 R)
• M21: 48,804,660 km (0.099 R)
• M22: 49,850,050 km (0.11 R)
• M23: 59,543,244 km (0.108 R)
• M24: 76,089,965 km (0.06 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: 271 - 14,514 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit