🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.6 AU - 0.64 AU

Year: 315 Days

Day: 14.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 42.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 49,743,600 km

• M1: 440,416 km (0.111 R)
• M2: 479,312 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.8

Radius: 9.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.67 AU - 0.85 AU

Year: 428 Days

Day: 11.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,743,600 km

• M1: 119,379 km (0.109 R)
• M2: 634,295 km (0.1 R)
• M3: 1,142,479 km (0.114 R)
• M4: 1,691,054 km (0.104 R)
• M5: 2,339,112 km (0.075 R)
• M6: 2,674,660 km (0.064 R)
• M7: 3,113,730 km (0.094 R)
• M8: 3,762,087 km (0.084 R)
• M9: 4,112,445 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.4

Radius: 14.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.75 AU - 0.91 AU

Year: 488 Days

Day: 6.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,743,600 km

• M1: 181,612 km (0.117 R)
• M2: 664,215 km (0.083 R)
• M3: 1,267,842 km (0.101 R)
• M4: 2,048,144 km (0.057 R)
• M5: 2,570,091 km (0.089 R)
• M6: 3,529,014 km (0.084 R)
• M7: 4,575,002 km (0.078 R)
• M8: 6,780,075 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.5

Radius: 13.2

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.04 AU - 1.16 AU

Year: 745 Days

Day: 5.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,743,600 km

• M1: 164,109 km (0.115 R)
• M2: 587,920 km (0.111 R)
• M3: 1,494,483 km (0.104 R)
• M4: 2,168,122 km (0.085 R)
• M5: 3,113,431 km (0.074 R)
• M6: 4,206,243 km (0.111 R)
• M7: 4,679,122 km (0.039 R)
• M8: 5,464,810 km (0.117 R)
• M9: 6,233,145 km (0.05 R)
• M10: 8,058,987 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.6

Radius: 8.4

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.92 AU - 3.16 AU

Year: 2614 Days

Day: 10.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,743,600 km

• M1: 104,569 km (0.105 R)
• M2: 393,442 km (0.113 R)
• M3: 1,128,716 km (0.079 R)
• M4: 1,568,085 km (0.085 R)
• M5: 2,092,126 km (0.077 R)
• M6: 2,667,031 km (0.111 R)
• M7: 3,168,483 km (0.053 R)
• M8: 3,655,274 km (0.103 R)
• M9: 5,619,494 km (0.095 R)
• M10: 6,871,030 km (0.12 R)
• M11: 7,195,957 km (0.094 R)
• M12: 7,531,206 km (0.063 R)
• M13: 9,583,389 km (0.103 R)
• M14: 9,989,547 km (0.1 R)
• M15: 11,236,745 km (0.08 R)
• M16: 12,238,153 km (0.098 R)
• M17: 12,628,454 km (0.119 R)
• M18: 14,755,436 km (0.11 R)
• M19: 15,699,848 km (0.067 R)
• M20: 17,272,271 km (0.101 R)
• M21: 17,763,700 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840

Radius: 12.8

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.75 AU - 5.37 AU

Year: 6287 Days

Day: 10.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,743,600 km

• M1: 160,219 km (0.097 R)
• M2: 558,449 km (0.117 R)
• M3: 1,064,239 km (0.113 R)
• M4: 1,482,216 km (0.088 R)
• M5: 2,558,872 km (0.068 R)
• M6: 3,078,275 km (0.089 R)
• M7: 3,761,339 km (0.105 R)
• M8: 5,310,425 km (0.092 R)
• M9: 6,096,113 km (0.118 R)
• M10: 7,066,405 km (0.102 R)
• M11: 8,586,170 km (0.084 R)
• M12: 9,714,287 km (0.09 R)
• M13: 13,749,690 km (0.117 R)
• M14: 15,352,781 km (0.1 R)
• M15: 17,477,370 km (0.031 R)
• M16: 20,832,251 km (0.102 R)
• M17: 23,266,658 km (0.074 R)
• M18: 24,258,043 km (0.115 R)
• M19: 24,934,524 km (0.106 R)
• M20: 26,148,511 km (0.11 R)
• M21: 28,882,113 km (0.098 R)
• M22: 29,834,154 km (0.051 R)
• M23: 30,905,424 km (0.1 R)
• M24: 32,713,614 km (0.101 R)
• M25: 34,804,244 km (0.092 R)
• M26: 35,556,572 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.9

Radius: 8

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.11 AU - 7.37 AU

Year: 12578 Days

Day: 20 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,743,600 km

• M1: 99,632 km (0.074 R)
• M2: 635,342 km (0.07 R)
• M3: 1,065,885 km (0.031 R)
• M4: 1,373,907 km (0.044 R)
• M5: 2,493,797 km (0.1 R)
• M6: 3,021,727 km (0.085 R)
• M7: 4,328,315 km (0.081 R)
• M8: 4,714,427 km (0.112 R)
• M9: 4,963,209 km (0.08 R)
• M10: 5,286,639 km (0.116 R)
• M11: 5,693,246 km (0.115 R)
• M12: 6,417,300 km (0.095 R)
• M13: 6,880,455 km (0.038 R)
• M14: 7,448,628 km (0.095 R)
• M15: 11,647,092 km (0.096 R)
• M16: 11,931,029 km (0.069 R)
• M17: 18,475,038 km (0.113 R)
• M18: 24,205,983 km (0.062 R)
• M19: 25,043,731 km (0.104 R)
• M20: 26,973,992 km (0.085 R)
• M21: 28,280,580 km (0.079 R)
• M22: 29,523,738 km (0.047 R)
• M23: 30,479,669 km (0.094 R)
• M24: 36,531,800 km (0.118 R)
• M25: 37,633,289 km (0.056 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 14,791 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit