🌌 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: 463

Radius: 13.7

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.46 AU - 0.58 AU

Year: 259 Days

Day: 6 Hours

Environment

Temp: -132 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,455,634 km

• M1: 170,392 km (0.083 R)
• M2: 598,691 km (0.094 R)
• M3: 1,060,799 km (0.109 R)
• M4: 1,552,826 km (0.118 R)
• M5: 2,091,827 km (0.112 R)
• M6: 2,653,417 km (0.095 R)
• M7: 3,161,153 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.4

Radius: 14

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.43 AU - 0.61 AU

Year: 259 Days

Day: 9.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 75,455,634 km

• M1: 174,132 km (0.091 R)
• M2: 861,085 km (0.073 R)
• M3: 1,347,278 km (0.113 R)
• M4: 1,860,100 km (0.112 R)
• M5: 2,457,743 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.9

Radius: 11.7

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.54 AU - 0.84 AU

Year: 396 Days

Day: 6.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,455,634 km

• M1: 146,307 km (0.117 R)
• M2: 529,876 km (0.104 R)
• M3: 896,241 km (0.104 R)
• M4: 1,335,610 km (0.08 R)
• M5: 1,723,966 km (0.118 R)
• M6: 2,205,521 km (0.107 R)
• M7: 3,220,393 km (0.116 R)
• M8: 3,809,211 km (0.112 R)
• M9: 4,747,638 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.9

Radius: 8.2

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.7 AU - 1 AU

Year: 541 Days

Day: 11.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 75,455,634 km

• M1: 102,026 km (0.066 R)
• M2: 732,581 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.6

Radius: 9.5

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.36 AU - 1.62 AU

Year: 1255 Days

Day: 11.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,455,634 km

• M1: 118,182 km (0.094 R)
• M2: 419,622 km (0.096 R)
• M3: 724,802 km (0.117 R)
• M4: 1,208,302 km (0.116 R)
• M5: 1,699,731 km (0.101 R)
• M6: 2,028,697 km (0.065 R)
• M7: 2,689,770 km (0.066 R)
• M8: 2,989,265 km (0.111 R)
• M9: 3,718,554 km (0.11 R)
• M10: 4,952,288 km (0.116 R)
• M11: 7,077,026 km (0.106 R)
• M12: 8,204,695 km (0.118 R)
• M13: 10,208,559 km (0.118 R)
• M14: 10,587,640 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.6

Radius: 13.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.68 AU - 4.32 AU

Year: 5522 Days

Day: 13.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,455,634 km

• M1: 166,652 km (0.116 R)
• M2: 762,500 km (0.049 R)
• M3: 1,184,815 km (0.114 R)
• M4: 1,668,465 km (0.107 R)
• M5: 2,380,701 km (0.061 R)
• M6: 2,919,103 km (0.091 R)
• M7: 3,778,543 km (0.06 R)
• M8: 4,592,655 km (0.067 R)
• M9: 5,207,502 km (0.082 R)
• M10: 6,216,988 km (0.104 R)
• M11: 8,701,809 km (0.089 R)
• M12: 9,477,175 km (0.074 R)
• M13: 10,432,208 km (0.111 R)
• M14: 11,355,077 km (0.112 R)
• M15: 14,903,837 km (0.074 R)
• M16: 17,242,651 km (0.07 R)
• M17: 21,303,784 km (0.086 R)
• M18: 21,815,708 km (0.074 R)
• M19: 22,636,851 km (0.092 R)
• M20: 23,170,017 km (0.111 R)
• M21: 24,819,932 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.9

Radius: 13.8

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.45 AU - 5.63 AU

Year: 6677 Days

Day: 7.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,455,634 km

• M1: 172,786 km (0.048 R)
• M2: 769,232 km (0.095 R)
• M3: 1,850,376 km (0.067 R)
• M4: 2,468,066 km (0.114 R)
• M5: 5,657,492 km (0.095 R)
• M6: 7,299,179 km (0.117 R)
• M7: 7,890,240 km (0.039 R)
• M8: 14,741,374 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.4

Radius: 5.7

Gravity: 16.17 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 9.5 AU - 10.94 AU

Year: 22552 Days

Day: 18.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,455,634 km

• M1: 70,909 km (0.114 R)
• M2: 964,308 km (0.092 R)
• M3: 1,725,761 km (0.086 R)
• M4: 2,382,496 km (0.05 R)
• M5: 2,854,477 km (0.094 R)
• M6: 6,190,809 km (0.11 R)
• M7: 6,492,398 km (0.032 R)
• M8: 6,803,861 km (0.098 R)
• M9: 17,097,840 km (0.099 R)
• M10: 19,740,037 km (0.099 R)
• M11: 23,049,741 km (0.111 R)
• M12: 24,513,855 km (0.114 R)
• M13: 26,261,757 km (0.105 R)
• M14: 29,156,475 km (0.095 R)
• M15: 39,103,687 km (0.09 R)
• M16: 39,689,961 km (0.094 R)
• M17: 40,282,069 km (0.098 R)
• M18: 54,296,846 km (0.078 R)
• M19: 57,631,084 km (0.064 R)
• M20: 61,492,953 km (0.116 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 14,225 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit