🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.9

Radius: 8.9

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 259 Days

Day: 12.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,924,601 km

• M1: 110,702 km (0.111 R)
• M2: 442,511 km (0.101 R)
• M3: 749,037 km (0.101 R)
• M4: 1,109,268 km (0.069 R)
• M5: 1,553,574 km (0.104 R)
• M6: 2,090,929 km (0.114 R)
• M7: 2,666,133 km (0.048 R)
• M8: 3,219,496 km (0.065 R)
• M9: 3,722,294 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.8

Radius: 10.5

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.5 AU - 0.62 AU

Year: 289 Days

Day: 12.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 19,924,601 km

• M1: 130,599 km (0.105 R)
• M2: 465,848 km (0.073 R)
• M3: 804,238 km (0.116 R)
• M4: 1,155,045 km (0.084 R)
• M5: 1,701,975 km (0.082 R)
• M6: 2,600,909 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.3

Radius: 9.1

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.79 AU - 0.83 AU

Year: 503 Days

Day: 14.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,924,601 km

• M1: 113,096 km (0.066 R)
• M2: 570,716 km (0.065 R)
• M3: 868,116 km (0.104 R)
• M4: 1,266,795 km (0.12 R)
• M5: 1,594,115 km (0.094 R)
• M6: 1,993,541 km (0.076 R)
• M7: 2,370,827 km (0.077 R)
• M8: 2,708,469 km (0.064 R)
• M9: 3,057,332 km (0.114 R)
• M10: 3,858,578 km (0.109 R)
• M11: 4,210,582 km (0.113 R)
• M12: 4,611,654 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.4

Radius: 11.2

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.7 AU - 0.96 AU

Year: 522 Days

Day: 9.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,924,601 km

• M1: 139,276 km (0.057 R)
• M2: 487,689 km (0.087 R)
• M3: 1,005,597 km (0.107 R)
• M4: 1,665,473 km (0.069 R)
• M5: 2,229,307 km (0.04 R)
• M6: 2,694,557 km (0.106 R)
• M7: 3,142,752 km (0.077 R)
• M8: 3,530,510 km (0.115 R)
• M9: 3,938,314 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.6

Radius: 9.7

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.82 AU - 0.98 AU

Year: 589 Days

Day: 8.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,924,601 km

• M1: 120,576 km (0.114 R)
• M2: 431,291 km (0.076 R)
• M3: 899,382 km (0.07 R)
• M4: 1,262,756 km (0.06 R)
• M5: 1,645,427 km (0.052 R)
• M6: 2,014,036 km (0.046 R)
• M7: 2,682,140 km (0.086 R)
• M8: 4,225,841 km (0.037 R)
• M9: 4,645,911 km (0.056 R)
• M10: 5,408,113 km (0.105 R)
• M11: 5,772,533 km (0.108 R)
• M12: 6,270,993 km (0.04 R)
• M13: 7,553,645 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.6

Radius: 10.6

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.85 AU - 1.33 AU

Year: 786 Days

Day: 10.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 19,924,601 km

• M1: 131,796 km (0.041 R)
• M2: 759,359 km (0.079 R)
• M3: 1,492,688 km (0.051 R)
• M4: 2,216,592 km (0.093 R)
• M5: 2,902,049 km (0.093 R)
• M6: 3,602,915 km (0.077 R)
• M7: 6,160,440 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.1

Radius: 14.8

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.16 AU - 1.24 AU

Year: 907 Days

Day: 12.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,924,601 km

• M1: 184,005 km (0.089 R)
• M2: 891,753 km (0.099 R)
• M3: 1,564,345 km (0.108 R)
• M4: 2,154,509 km (0.115 R)
• M5: 4,222,400 km (0.108 R)
• M6: 5,563,096 km (0.067 R)
• M7: 6,139,048 km (0.053 R)
• M8: 7,219,294 km (0.049 R)
• M9: 7,680,654 km (0.106 R)
• M10: 9,297,208 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358

Radius: 14.6

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.17 AU - 1.35 AU

Year: 976 Days

Day: 5.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,924,601 km

• M1: 181,612 km (0.11 R)
• M2: 896,540 km (0.105 R)
• M3: 1,625,231 km (0.092 R)
• M4: 2,270,148 km (0.061 R)
• M5: 3,558,485 km (0.047 R)
• M6: 4,578,892 km (0.054 R)
• M7: 5,080,044 km (0.088 R)
• M8: 6,134,410 km (0.088 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.6

Radius: 8.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.34 AU - 2.52 AU

Year: 2615 Days

Day: 12.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,924,601 km

• M1: 112,049 km (0.078 R)
• M2: 478,264 km (0.058 R)
• M3: 829,969 km (0.102 R)
• M4: 1,223,561 km (0.064 R)
• M5: 2,089,134 km (0.11 R)
• M6: 2,646,536 km (0.074 R)
• M7: 2,990,611 km (0.093 R)
• M8: 3,512,708 km (0.118 R)
• M9: 3,947,589 km (0.075 R)
• M10: 4,636,636 km (0.115 R)
• M11: 5,182,519 km (0.106 R)
• M12: 5,888,771 km (0.067 R)
• M13: 6,252,892 km (0.114 R)
• M14: 6,787,854 km (0.116 R)
• M15: 8,700,313 km (0.107 R)
• M16: 9,045,585 km (0.119 R)
• M17: 9,763,505 km (0.084 R)
• M18: 10,554,130 km (0.065 R)
• M19: 11,165,536 km (0.089 R)
• M20: 12,223,642 km (0.115 R)
• M21: 14,407,322 km (0.103 R)
• M22: 14,846,841 km (0.089 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.9

Radius: 11.7

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.08 AU - 4.26 AU

Year: 4853 Days

Day: 8.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,924,601 km

• M1: 145,559 km (0.076 R)
• M2: 552,315 km (0.097 R)
• M3: 1,099,395 km (0.117 R)
• M4: 1,538,913 km (0.084 R)
• M5: 2,346,592 km (0.045 R)
• M6: 3,490,418 km (0.079 R)
• M7: 4,024,632 km (0.084 R)
• M8: 5,306,236 km (0.093 R)
• M9: 6,094,318 km (0.064 R)
• M10: 6,586,794 km (0.115 R)
• M11: 7,017,337 km (0.063 R)
• M12: 8,095,638 km (0.098 R)
• M13: 9,316,806 km (0.051 R)
• M14: 10,540,516 km (0.09 R)
• M15: 10,971,508 km (0.091 R)
• M16: 11,373,328 km (0.053 R)
• M17: 12,121,616 km (0.11 R)
• M18: 14,806,150 km (0.057 R)
• M19: 17,264,791 km (0.095 R)
• M20: 17,754,425 km (0.065 R)
• M21: 18,590,976 km (0.107 R)
• M22: 19,570,693 km (0.119 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 16,791 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit