🌌 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: 232.1

Radius: 12

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.47 AU - 0.65 AU

Year: 279 Days

Day: 10.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 64,012,342 km

• M1: 149,448 km (0.07 R)
• M2: 617,989 km (0.116 R)
• M3: 1,065,885 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.9

Radius: 10.2

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.58 AU - 0.68 AU

Year: 333 Days

Day: 14.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,012,342 km

• M1: 127,009 km (0.085 R)
• M2: 526,585 km (0.053 R)
• M3: 976,425 km (0.036 R)
• M4: 1,325,886 km (0.039 R)
• M5: 2,093,173 km (0.083 R)
• M6: 2,540,172 km (0.083 R)
• M7: 2,969,069 km (0.095 R)
• M8: 3,468,277 km (0.081 R)
• M9: 3,815,643 km (0.088 R)
• M10: 4,289,270 km (0.102 R)
• M11: 4,635,589 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.7

Radius: 9.9

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.73 AU - 1.77 AU

Year: 1544 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,012,342 km

• M1: 123,119 km (0.103 R)
• M2: 440,267 km (0.094 R)
• M3: 787,334 km (0.042 R)
• M4: 1,107,473 km (0.106 R)
• M5: 1,930,860 km (0.103 R)
• M6: 2,395,062 km (0.11 R)
• M7: 3,119,116 km (0.057 R)
• M8: 3,828,509 km (0.106 R)
• M9: 5,162,024 km (0.083 R)
• M10: 6,908,130 km (0.115 R)
• M11: 7,613,933 km (0.093 R)
• M12: 8,717,517 km (0.091 R)
• M13: 9,169,153 km (0.061 R)
• M14: 10,152,310 km (0.069 R)
• M15: 10,891,623 km (0.112 R)
• M16: 11,309,749 km (0.06 R)
• M17: 12,364,713 km (0.087 R)
• M18: 12,781,492 km (0.043 R)
• M19: 13,090,562 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.8

Radius: 11.8

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.29 AU - 3.65 AU

Year: 4310 Days

Day: 6.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,012,342 km

• M1: 146,756 km (0.119 R)
• M2: 548,575 km (0.065 R)
• M3: 931,396 km (0.061 R)
• M4: 1,732,942 km (0.115 R)
• M5: 2,715,052 km (0.101 R)
• M6: 3,720,798 km (0.097 R)
• M7: 4,321,733 km (0.106 R)
• M8: 5,013,473 km (0.073 R)
• M9: 5,630,415 km (0.092 R)
• M10: 6,848,441 km (0.07 R)
• M11: 8,425,202 km (0.054 R)
• M12: 9,135,493 km (0.114 R)
• M13: 13,353,555 km (0.072 R)
• M14: 14,540,464 km (0.099 R)
• M15: 15,159,650 km (0.096 R)
• M16: 16,632,441 km (0.088 R)
• M17: 17,877,694 km (0.11 R)
• M18: 18,917,848 km (0.111 R)
• M19: 21,549,573 km (0.08 R)
• M20: 23,561,814 km (0.065 R)
• M21: 25,859,488 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.9

Radius: 13.3

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.89 AU - 5.29 AU

Year: 6558 Days

Day: 13.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,012,342 km

• M1: 165,455 km (0.092 R)
• M2: 3,456,459 km (0.07 R)
• M3: 5,498,619 km (0.063 R)
• M4: 5,948,759 km (0.113 R)
• M5: 6,423,583 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.5

Radius: 5.2

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 5.98 AU - 8.64 AU

Year: 13180 Days

Day: 20.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,012,342 km

• M1: 64,925 km (0.093 R)
• M2: 451,038 km (0.057 R)
• M3: 630,405 km (0.045 R)
• M4: 1,798,765 km (0.089 R)
• M5: 3,492,213 km (0.07 R)
• M6: 6,034,329 km (0.113 R)
• M7: 7,289,156 km (0.111 R)
• M8: 7,756,799 km (0.083 R)
• M9: 13,072,311 km (0.047 R)
• M10: 18,345,187 km (0.072 R)
• M11: 19,355,122 km (0.104 R)
• M12: 19,799,129 km (0.107 R)
• M13: 26,385,474 km (0.096 R)
• M14: 30,564,191 km (0.113 R)
• M15: 30,964,665 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.1

Radius: 3.4

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 7.76 AU - 12.74 AU

Year: 21883 Days

Day: 22.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,012,342 km

• M1: 63,729 km (0.091 R)
• M2: 264,489 km (0.104 R)
• M3: 875,596 km (0.111 R)
• M4: 1,115,851 km (0.119 R)
• M5: 1,950,307 km (0.108 R)
• M6: 7,546,315 km (0.084 R)
• M7: 9,474,033 km (0.048 R)
• M8: 21,025,981 km (0.115 R)
• M9: 27,231,450 km (0.091 R)
• M10: 27,526,008 km (0.112 R)
• M11: 30,062,889 km (0.046 R)
• M12: 40,482,081 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.5

Radius: 6.9

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 8.44 AU - 13.08 AU

Year: 23537 Days

Day: 19.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 64,012,342 km

• M1: 87,515 km (0.095 R)
• M2: 342,729 km (0.097 R)
• M3: 721,062 km (0.101 R)
• M4: 947,553 km (0.09 R)
• M5: 1,183,618 km (0.115 R)
• M6: 1,504,207 km (0.05 R)
• M7: 3,538,438 km (0.061 R)
• M8: 3,819,832 km (0.066 R)
• M9: 4,116,036 km (0.033 R)
• M10: 4,363,919 km (0.098 R)
• M11: 6,028,345 km (0.117 R)
• M12: 6,596,518 km (0.12 R)
• M13: 8,076,639 km (0.08 R)
• M14: 9,985,059 km (0.077 R)
• M15: 11,372,580 km (0.107 R)
• M16: 12,175,472 km (0.089 R)
• M17: 14,453,697 km (0.091 R)
• M18: 15,692,817 km (0.086 R)
• M19: 17,641,628 km (0.101 R)
• M20: 20,904,208 km (0.08 R)
• M21: 24,346,156 km (0.099 R)
• M22: 28,037,334 km (0.096 R)
• M23: 30,891,362 km (0.086 R)
• M24: 32,085,303 km (0.102 R)
• M25: 33,062,326 km (0.068 R)
• M26: 33,309,611 km (0.091 R)
• M27: 33,682,858 km (0.051 R)
• M28: 35,981,579 km (0.057 R)
• M29: 36,506,219 km (0.066 R)
• M30: 37,705,395 km (0.084 R)
• M31: 41,173,672 km (0.108 R)
• M32: 48,417,949 km (0.095 R)
• M33: 55,415,689 km (0.11 R)
• M34: 55,939,880 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 12,071 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit