🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.55 AU - 0.79 AU

Year: 206 Days

Day: 13.2 Hours

Environment

Temp: 117 °C

Axial Tilt: 35.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 83,291,523 km

• M1: 41,139 km (0.09 R)
• M2: 152,739 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.81 AU - 2.05 AU

Year: 1005 Days

Day: 41.4 Hours

Environment

Temp: -79 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.46 AU - 4.18 AU

Year: 2798 Days

Day: 39.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.12 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714

Radius: 13.1

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.71 AU - 5.11 AU

Year: 3470 Days

Day: 10.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,291,523 km

• M1: 163,211 km (0.052 R)
• M2: 586,723 km (0.094 R)
• M3: 1,293,722 km (0.04 R)
• M4: 1,903,932 km (0.118 R)
• M5: 2,575,178 km (0.071 R)
• M6: 3,325,112 km (0.081 R)
• M7: 3,792,755 km (0.115 R)
• M8: 4,789,974 km (0.119 R)
• M9: 6,470,706 km (0.093 R)
• M10: 7,047,406 km (0.098 R)
• M11: 8,694,778 km (0.109 R)
• M12: 9,134,745 km (0.095 R)
• M13: 10,835,075 km (0.107 R)
• M14: 12,368,004 km (0.047 R)
• M15: 12,831,309 km (0.109 R)
• M16: 13,991,141 km (0.088 R)
• M17: 14,596,713 km (0.048 R)
• M18: 15,752,207 km (0.053 R)
• M19: 18,304,795 km (0.049 R)
• M20: 20,407,992 km (0.106 R)
• M21: 24,000,884 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.1

Radius: 14.5

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.17 AU - 6.73 AU

Year: 4768 Days

Day: 6.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,291,523 km

• M1: 195,375 km (0.084 R)
• M2: 655,089 km (0.088 R)
• M3: 1,196,633 km (0.104 R)
• M4: 1,705,117 km (0.101 R)
• M5: 2,664,039 km (0.118 R)
• M6: 4,908,456 km (0.079 R)
• M7: 5,794,374 km (0.102 R)
• M8: 8,820,590 km (0.116 R)
• M9: 9,754,529 km (0.039 R)
• M10: 11,237,044 km (0.09 R)
• M11: 12,731,228 km (0.073 R)
• M12: 18,347,880 km (0.078 R)
• M13: 20,050,004 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.4

Radius: 14.7

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.06 AU - 8.16 AU

Year: 7867 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,291,523 km

• M1: 182,809 km (0.08 R)
• M2: 1,254,378 km (0.086 R)
• M3: 2,421,690 km (0.047 R)
• M4: 3,038,034 km (0.08 R)
• M5: 4,337,740 km (0.096 R)
• M6: 4,951,690 km (0.115 R)
• M7: 5,489,643 km (0.074 R)
• M8: 6,095,066 km (0.061 R)
• M9: 6,992,504 km (0.035 R)
• M10: 8,183,901 km (0.105 R)
• M11: 8,718,714 km (0.098 R)
• M12: 11,053,188 km (0.028 R)
• M13: 12,158,717 km (0.1 R)
• M14: 12,809,168 km (0.071 R)
• M15: 15,217,843 km (0.046 R)
• M16: 16,585,617 km (0.097 R)
• M17: 20,200,948 km (0.077 R)
• M18: 23,448,569 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.4

Radius: 3.6

Gravity: 60.06 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 11.17 AU - 18.57 AU

Year: 21488 Days

Day: 17 Hours

Environment

Temp: -190 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,291,523 km

• M1: 44,879 km (0.117 R)
• M2: 1,031,477 km (0.032 R)
• M3: 1,224,608 km (0.099 R)
• M4: 1,457,831 km (0.073 R)
• M5: 1,872,217 km (0.088 R)
• M6: 2,054,128 km (0.051 R)
• M7: 2,430,068 km (0.029 R)
• M8: 2,573,083 km (0.079 R)
• M9: 2,696,651 km (0.051 R)
• M10: 3,553,099 km (0.068 R)
• M11: 4,193,528 km (0.1 R)
• M12: 5,293,072 km (0.088 R)
• M13: 10,141,539 km (0.039 R)
• M14: 10,264,359 km (0.103 R)
• M15: 12,022,134 km (0.113 R)
• M16: 15,139,155 km (0.1 R)
• M17: 16,371,393 km (0.056 R)
• M18: 18,754,935 km (0.096 R)
• M19: 20,174,170 km (0.047 R)
• M20: 23,224,471 km (0.07 R)
• M21: 24,525,973 km (0.114 R)
• M22: 26,801,805 km (0.093 R)
• M23: 27,870,383 km (0.039 R)
• M24: 28,354,332 km (0.108 R)
• M25: 37,607,110 km (0.096 R)
• M26: 42,987,547 km (0.073 R)
• M27: 43,148,364 km (0.111 R)
• M28: 45,442,448 km (0.116 R)
• M29: 47,129,912 km (0.119 R)
• M30: 50,271,766 km (0.106 R)
• M31: 65,717,148 km (0.118 R)
• M32: 67,221,055 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 14,746 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit