🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.6

Radius: 9.9

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.55 AU - 0.59 AU

Year: 292 Days

Day: 6.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,437,428 km

• M1: 123,119 km (0.068 R)
• M2: 461,360 km (0.07 R)
• M3: 797,357 km (0.047 R)
• M4: 1,131,110 km (0.076 R)
• M5: 1,652,608 km (0.084 R)
• M6: 2,055,924 km (0.098 R)
• M7: 2,589,090 km (0.112 R)
• M8: 2,909,080 km (0.111 R)
• M9: 3,433,421 km (0.07 R)
• M10: 3,784,976 km (0.08 R)
• M11: 4,147,601 km (0.039 R)
• M12: 4,465,197 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.4

Radius: 12.3

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.68 AU - 1.1 AU

Year: 569 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,437,428 km

• M1: 153,039 km (0.094 R)
• M2: 536,458 km (0.12 R)
• M3: 991,983 km (0.12 R)
• M4: 1,629,570 km (0.106 R)
• M5: 2,096,764 km (0.096 R)
• M6: 2,882,452 km (0.068 R)
• M7: 3,470,820 km (0.113 R)
• M8: 4,066,070 km (0.11 R)
• M9: 4,495,117 km (0.097 R)
• M10: 5,069,722 km (0.047 R)
• M11: 6,117,506 km (0.101 R)
• M12: 6,968,418 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.4

Radius: 11.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.68 AU - 1.1 AU

Year: 569 Days

Day: 12.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,437,428 km

• M1: 143,464 km (0.093 R)
• M2: 668,403 km (0.096 R)
• M3: 1,055,862 km (0.071 R)
• M4: 2,080,906 km (0.04 R)
• M5: 2,701,139 km (0.104 R)
• M6: 3,238,495 km (0.098 R)
• M7: 5,080,493 km (0.096 R)
• M8: 5,523,153 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.7

Radius: 13

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.01 AU - 1.09 AU

Year: 730 Days

Day: 13.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,437,428 km

• M1: 161,715 km (0.059 R)
• M2: 649,105 km (0.116 R)
• M3: 1,054,067 km (0.084 R)
• M4: 1,699,133 km (0.096 R)
• M5: 2,169,618 km (0.1 R)
• M6: 3,457,057 km (0.065 R)
• M7: 4,032,560 km (0.079 R)
• M8: 4,915,636 km (0.116 R)
• M9: 5,447,756 km (0.107 R)
• M10: 5,980,324 km (0.119 R)
• M11: 7,476,453 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.3

Radius: 10.9

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.97 AU - 1.31 AU

Year: 826 Days

Day: 9.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,437,428 km

• M1: 135,536 km (0.051 R)
• M2: 491,878 km (0.066 R)
• M3: 1,007,392 km (0.079 R)
• M4: 1,947,615 km (0.103 R)
• M5: 2,309,642 km (0.115 R)
• M6: 2,881,704 km (0.113 R)
• M7: 3,688,635 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.4

Radius: 8.8

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.62 AU - 2.5 AU

Year: 2005 Days

Day: 6.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,437,428 km

• M1: 109,506 km (0.032 R)
• M2: 482,603 km (0.119 R)
• M3: 836,701 km (0.11 R)
• M4: 1,193,941 km (0.085 R)
• M5: 1,704,219 km (0.059 R)
• M6: 2,501,725 km (0.112 R)
• M7: 3,207,977 km (0.108 R)
• M8: 4,728,489 km (0.118 R)
• M9: 5,539,310 km (0.078 R)
• M10: 7,176,808 km (0.113 R)
• M11: 8,245,685 km (0.098 R)
• M12: 8,592,453 km (0.114 R)
• M13: 10,585,246 km (0.073 R)
• M14: 11,300,025 km (0.104 R)
• M15: 14,079,404 km (0.07 R)
• M16: 15,891,333 km (0.098 R)
• M17: 16,878,529 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.1

Radius: 11.2

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.19 AU - 4.95 AU

Year: 5569 Days

Day: 8 Hours

Environment

Temp: -230 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,437,428 km

• M1: 139,276 km (0.114 R)
• M2: 609,462 km (0.119 R)
• M3: 1,048,382 km (0.111 R)
• M4: 1,460,374 km (0.102 R)
• M5: 1,893,311 km (0.091 R)
• M6: 2,245,165 km (0.099 R)
• M7: 3,084,110 km (0.097 R)
• M8: 3,509,267 km (0.1 R)
• M9: 4,584,576 km (0.078 R)
• M10: 5,525,996 km (0.11 R)
• M11: 6,091,476 km (0.064 R)
• M12: 7,119,662 km (0.09 R)
• M13: 7,637,420 km (0.097 R)
• M14: 8,957,771 km (0.059 R)
• M15: 9,918,937 km (0.045 R)
• M16: 15,720,492 km (0.096 R)
• M17: 19,011,645 km (0.038 R)
• M18: 20,374,482 km (0.12 R)
• M19: 20,743,839 km (0.077 R)
• M20: 24,353,785 km (0.109 R)
• M21: 25,275,308 km (0.099 R)
• M22: 25,960,018 km (0.064 R)
• M23: 26,569,330 km (0.087 R)
• M24: 27,010,195 km (0.108 R)
• M25: 30,044,339 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.6

Radius: 5.3

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.96 AU - 6.54 AU

Year: 9352 Days

Day: 23.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,437,428 km

• M1: 66,122 km (0.048 R)
• M2: 444,455 km (0.036 R)
• M3: 678,277 km (0.099 R)
• M4: 889,359 km (0.081 R)
• M5: 2,027,500 km (0.12 R)
• M6: 5,559,506 km (0.069 R)
• M7: 5,919,588 km (0.077 R)
• M8: 8,108,205 km (0.058 R)
• M9: 8,453,925 km (0.075 R)
• M10: 9,174,837 km (0.068 R)
• M11: 9,849,225 km (0.072 R)
• M12: 12,319,833 km (0.104 R)
• M13: 29,171,734 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.4

Radius: 4.8

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 7.22 AU - 8.14 AU

Year: 14436 Days

Day: 23 Hours

Environment

Temp: -235 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,437,428 km

• M1: 59,690 km (0.081 R)
• M2: 235,317 km (0.094 R)
• M3: 752,178 km (0.104 R)
• M4: 956,080 km (0.064 R)
• M5: 1,540,559 km (0.092 R)
• M6: 1,814,173 km (0.077 R)
• M7: 2,071,631 km (0.103 R)
• M8: 2,234,244 km (0.038 R)
• M9: 2,832,636 km (0.079 R)
• M10: 2,992,556 km (0.092 R)
• M11: 3,836,587 km (0.05 R)
• M12: 5,057,605 km (0.085 R)
• M13: 5,323,739 km (0.076 R)
• M14: 5,537,066 km (0.063 R)
• M15: 6,145,181 km (0.075 R)
• M16: 8,276,203 km (0.071 R)
• M17: 11,650,084 km (0.08 R)
• M18: 12,219,154 km (0.07 R)
• M19: 12,915,383 km (0.097 R)
• M20: 13,079,641 km (0.116 R)
• M21: 13,412,496 km (0.057 R)
• M22: 14,327,886 km (0.11 R)
• M23: 18,685,073 km (0.116 R)
• M24: 23,603,851 km (0.113 R)
• M25: 23,767,511 km (0.109 R)
• M26: 26,845,188 km (0.104 R)
• M27: 28,850,997 km (0.057 R)
• M28: 30,371,061 km (0.074 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 14,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit