🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.2

Radius: 13.1

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.55 AU - 0.65 AU

Year: 327 Days

Day: 8.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 22,871,412 km

• M1: 162,912 km (0.036 R)
• M2: 582,684 km (0.097 R)
• M3: 1,063,342 km (0.081 R)
• M4: 1,495,530 km (0.029 R)
• M5: 2,388,480 km (0.039 R)
• M6: 2,972,809 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.1

Radius: 14.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.54 AU - 0.68 AU

Year: 335 Days

Day: 12.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,871,412 km

• M1: 185,352 km (0.063 R)
• M2: 701,464 km (0.101 R)
• M3: 1,198,279 km (0.067 R)
• M4: 1,754,633 km (0.089 R)
• M5: 2,855,225 km (0.115 R)
• M6: 4,114,241 km (0.094 R)
• M7: 4,586,372 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.2

Radius: 15

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.68 AU - 0.8 AU

Year: 447 Days

Day: 5.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,871,412 km

• M1: 186,549 km (0.101 R)
• M2: 847,472 km (0.084 R)
• M3: 1,389,166 km (0.12 R)
• M4: 1,920,388 km (0.106 R)
• M5: 2,482,876 km (0.082 R)
• M6: 3,144,398 km (0.119 R)
• M7: 4,343,275 km (0.117 R)
• M8: 5,343,038 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.9

Radius: 12.4

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.74 AU - 1.12 AU

Year: 630 Days

Day: 12.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,871,412 km

• M1: 154,235 km (0.09 R)
• M2: 568,921 km (0.106 R)
• M3: 1,089,970 km (0.112 R)
• M4: 1,622,688 km (0.088 R)
• M5: 2,065,947 km (0.102 R)
• M6: 2,570,989 km (0.105 R)
• M7: 3,365,204 km (0.098 R)
• M8: 3,794,700 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.7

Radius: 13.3

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.17 AU - 1.31 AU

Year: 971 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,871,412 km

• M1: 166,054 km (0.103 R)
• M2: 582,983 km (0.111 R)
• M3: 1,298,659 km (0.089 R)
• M4: 1,714,691 km (0.117 R)
• M5: 2,138,202 km (0.041 R)
• M6: 2,931,071 km (0.114 R)
• M7: 3,545,470 km (0.117 R)
• M8: 4,011,467 km (0.102 R)
• M9: 4,739,410 km (0.083 R)
• M10: 5,482,463 km (0.081 R)
• M11: 6,459,486 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.2

Radius: 12.1

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.7 AU - 1.72 AU

Year: 1572 Days

Day: 11.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,871,412 km

• M1: 150,495 km (0.06 R)
• M2: 635,342 km (0.088 R)
• M3: 1,493,735 km (0.037 R)
• M4: 2,203,577 km (0.091 R)
• M5: 2,643,993 km (0.1 R)
• M6: 3,050,749 km (0.04 R)
• M7: 3,829,107 km (0.093 R)
• M8: 5,074,809 km (0.105 R)
• M9: 7,384,151 km (0.111 R)
• M10: 7,989,873 km (0.116 R)
• M11: 8,566,273 km (0.11 R)
• M12: 9,072,961 km (0.076 R)
• M13: 9,499,315 km (0.116 R)
• M14: 10,077,062 km (0.067 R)
• M15: 10,463,324 km (0.101 R)
• M16: 10,859,459 km (0.046 R)
• M17: 12,030,212 km (0.084 R)
• M18: 12,993,024 km (0.079 R)
• M19: 13,963,166 km (0.115 R)
• M20: 15,208,718 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.4

Radius: 8.1

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.98 AU - 3 AU

Year: 2762 Days

Day: 13.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,871,412 km

• M1: 101,128 km (0.063 R)
• M2: 677,529 km (0.096 R)
• M3: 964,457 km (0.119 R)
• M4: 1,621,043 km (0.075 R)
• M5: 1,971,401 km (0.088 R)
• M6: 2,650,575 km (0.092 R)
• M7: 3,080,968 km (0.11 R)
• M8: 4,371,848 km (0.09 R)
• M9: 5,242,059 km (0.095 R)
• M10: 5,651,808 km (0.094 R)
• M11: 6,707,669 km (0.084 R)
• M12: 7,427,833 km (0.05 R)
• M13: 8,057,042 km (0.11 R)
• M14: 10,762,220 km (0.058 R)
• M15: 12,563,678 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701

Radius: 13.7

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.4 AU - 3.16 AU

Year: 3258 Days

Day: 7.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,871,412 km

• M1: 170,841 km (0.097 R)
• M2: 833,709 km (0.117 R)
• M3: 1,645,128 km (0.093 R)
• M4: 2,104,094 km (0.061 R)
• M5: 2,618,711 km (0.101 R)
• M6: 4,221,502 km (0.074 R)
• M7: 6,065,745 km (0.112 R)
• M8: 6,520,522 km (0.105 R)
• M9: 8,892,995 km (0.119 R)
• M10: 9,709,051 km (0.091 R)
• M11: 10,293,829 km (0.117 R)
• M12: 10,943,234 km (0.095 R)
• M13: 11,880,764 km (0.109 R)
• M14: 12,504,736 km (0.072 R)
• M15: 14,609,578 km (0.096 R)
• M16: 15,119,109 km (0.113 R)
• M17: 15,640,457 km (0.058 R)
• M18: 17,560,696 km (0.047 R)
• M19: 18,965,420 km (0.113 R)
• M20: 19,942,593 km (0.1 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: 251 - 15,951 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit