🌌 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 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.56 AU - 0.62 AU

Year: 293 Days

Day: 27 Hours

Environment

Temp: -121 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,705,167 km

• M1: 106,364 km (0.039 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.53 AU - 0.79 AU

Year: 346 Days

Day: 23.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.3

Radius: 11.4

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.64 AU - 0.86 AU

Year: 419 Days

Day: 6.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,705,167 km

• M1: 141,819 km (0.1 R)
• M2: 545,583 km (0.072 R)
• M3: 957,875 km (0.059 R)
• M4: 1,803,851 km (0.055 R)
• M5: 2,192,506 km (0.089 R)
• M6: 2,680,943 km (0.076 R)
• M7: 3,362,362 km (0.079 R)
• M8: 3,766,725 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.4

Radius: 12.1

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.51 AU - 1.77 AU

Year: 1356 Days

Day: 7.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,705,167 km

• M1: 150,795 km (0.068 R)
• M2: 559,945 km (0.112 R)
• M3: 1,062,444 km (0.092 R)
• M4: 1,508,395 km (0.057 R)
• M5: 1,912,459 km (0.076 R)
• M6: 2,457,743 km (0.117 R)
• M7: 2,868,988 km (0.026 R)
• M8: 3,974,965 km (0.092 R)
• M9: 4,389,650 km (0.087 R)
• M10: 5,445,213 km (0.056 R)
• M11: 6,216,390 km (0.049 R)
• M12: 7,348,098 km (0.047 R)
• M13: 7,746,028 km (0.061 R)
• M14: 8,450,335 km (0.114 R)
• M15: 9,339,844 km (0.109 R)
• M16: 10,047,292 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751

Radius: 10.8

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.97 AU - 2.99 AU

Year: 3322 Days

Day: 5.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,705,167 km

• M1: 134,339 km (0.109 R)
• M2: 502,649 km (0.102 R)
• M3: 1,338,003 km (0.097 R)
• M4: 2,597,169 km (0.095 R)
• M5: 3,224,433 km (0.109 R)
• M6: 3,992,019 km (0.055 R)
• M7: 4,499,455 km (0.075 R)
• M8: 5,251,184 km (0.111 R)
• M9: 7,255,347 km (0.071 R)
• M10: 8,428,793 km (0.117 R)
• M11: 9,228,543 km (0.113 R)
• M12: 9,647,118 km (0.102 R)
• M13: 13,758,516 km (0.028 R)
• M14: 15,231,606 km (0.115 R)
• M15: 15,924,993 km (0.078 R)
• M16: 16,306,916 km (0.082 R)
• M17: 17,779,707 km (0.109 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 12,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit