🌌 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 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.44 AU - 0.7 AU

Year: 278 Days

Day: 26.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,966,276 km

• M1: 57,595 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.8

Radius: 11.2

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.76 AU - 0.86 AU

Year: 471 Days

Day: 5.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,966,276 km

• M1: 139,276 km (0.104 R)
• M2: 503,098 km (0.083 R)
• M3: 896,690 km (0.101 R)
• M4: 1,859,502 km (0.117 R)
• M5: 2,482,128 km (0.102 R)
• M6: 2,942,740 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.4

Radius: 13.3

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.18 AU - 1.36 AU

Year: 924 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,966,276 km

• M1: 165,455 km (0.119 R)
• M2: 676,033 km (0.033 R)
• M3: 1,195,736 km (0.04 R)
• M4: 1,675,197 km (0.07 R)
• M5: 2,112,023 km (0.079 R)
• M6: 2,571,737 km (0.054 R)
• M7: 3,074,535 km (0.107 R)
• M8: 4,280,593 km (0.111 R)
• M9: 4,840,389 km (0.107 R)
• M10: 5,914,053 km (0.117 R)
• M11: 6,365,539 km (0.068 R)
• M12: 6,840,213 km (0.031 R)
• M13: 7,930,782 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.4

Radius: 13.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.32 AU - 2.18 AU

Year: 1495 Days

Day: 5.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,966,276 km

• M1: 164,109 km (0.106 R)
• M2: 647,609 km (0.095 R)
• M3: 1,312,871 km (0.111 R)
• M4: 1,786,199 km (0.056 R)
• M5: 2,267,904 km (0.034 R)
• M6: 5,220,218 km (0.074 R)
• M7: 6,149,370 km (0.115 R)
• M8: 7,967,583 km (0.071 R)
• M9: 8,745,492 km (0.07 R)
• M10: 9,416,288 km (0.051 R)
• M11: 9,925,370 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 12.3

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.66 AU - 3.86 AU

Year: 3801 Days

Day: 11 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 53,966,276 km

• M1: 153,039 km (0.112 R)
• M2: 617,690 km (0.101 R)
• M3: 1,485,357 km (0.089 R)
• M4: 2,396,109 km (0.103 R)
• M5: 2,899,955 km (0.076 R)
• M6: 4,144,609 km (0.076 R)
• M7: 4,638,282 km (0.118 R)
• M8: 5,297,859 km (0.063 R)
• M9: 6,273,686 km (0.065 R)
• M10: 6,714,252 km (0.073 R)
• M11: 7,112,780 km (0.096 R)
• M12: 7,723,738 km (0.086 R)
• M13: 8,439,414 km (0.08 R)
• M14: 9,846,532 km (0.073 R)
• M15: 10,812,485 km (0.12 R)
• M16: 11,664,894 km (0.107 R)
• M17: 12,062,824 km (0.116 R)
• M18: 13,168,652 km (0.083 R)
• M19: 14,190,555 km (0.051 R)
• M20: 14,644,435 km (0.064 R)
• M21: 15,160,099 km (0.046 R)
• M22: 15,902,403 km (0.084 R)
• M23: 16,337,284 km (0.116 R)
• M24: 16,724,444 km (0.068 R)
• M25: 20,617,429 km (0.047 R)
• M26: 23,222,825 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.6

Radius: 13.5

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.63 AU - 5.51 AU

Year: 7371 Days

Day: 8.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,966,276 km

• M1: 179,667 km (0.098 R)
• M2: 621,579 km (0.096 R)
• M3: 2,141,045 km (0.092 R)
• M4: 2,632,175 km (0.118 R)
• M5: 4,580,238 km (0.065 R)
• M6: 5,099,941 km (0.115 R)
• M7: 6,293,134 km (0.115 R)
• M8: 7,507,569 km (0.062 R)
• M9: 13,088,617 km (0.071 R)
• M10: 14,503,364 km (0.095 R)
• M11: 15,437,902 km (0.07 R)
• M12: 18,340,549 km (0.1 R)
• M13: 19,657,160 km (0.109 R)
• M14: 23,815,083 km (0.077 R)
• M15: 27,481,428 km (0.071 R)
• M16: 30,492,085 km (0.028 R)
• M17: 34,583,737 km (0.068 R)
• M18: 39,864,093 km (0.082 R)
• M19: 41,079,127 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324.9

Radius: 6.4

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.97 AU - 8.97 AU

Year: 17346 Days

Day: 21.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,966,276 km

• M1: 80,484 km (0.109 R)
• M2: 300,243 km (0.118 R)
• M3: 530,324 km (0.105 R)
• M4: 3,375,526 km (0.101 R)
• M5: 5,055,810 km (0.116 R)
• M6: 6,575,874 km (0.11 R)
• M7: 7,060,870 km (0.118 R)
• M8: 12,131,340 km (0.112 R)
• M9: 13,877,147 km (0.056 R)
• M10: 15,926,638 km (0.101 R)
• M11: 17,098,139 km (0.105 R)
• M12: 17,705,058 km (0.11 R)
• M13: 20,108,946 km (0.114 R)
• M14: 25,750,132 km (0.115 R)
• M15: 27,053,429 km (0.027 R)
• M16: 38,582,488 km (0.084 R)
• M17: 49,108,493 km (0.072 R)
• M18: 51,734,534 km (0.062 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 11,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit