🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.45 AU - 0.59 AU

Year: 246 Days

Day: 17.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,413,277 km

• M1: 278,402 km (0.057 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.5 AU - 0.78 AU

Year: 336 Days

Day: 17.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.4

Radius: 12.4

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.59 AU - 0.89 AU

Year: 418 Days

Day: 10 Hours

Environment

Temp: -142 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 16,413,277 km

• M1: 154,235 km (0.038 R)
• M2: 629,508 km (0.12 R)
• M3: 1,193,193 km (0.098 R)
• M4: 1,776,624 km (0.109 R)
• M5: 2,174,704 km (0.07 R)
• M6: 2,561,415 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.9

Radius: 13.2

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.87 AU - 1.31 AU

Year: 747 Days

Day: 8.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,413,277 km

• M1: 164,109 km (0.063 R)
• M2: 617,091 km (0.072 R)
• M3: 1,289,384 km (0.095 R)
• M4: 1,728,155 km (0.06 R)
• M5: 2,334,176 km (0.098 R)

Asteroid Belt

Center: 1.43 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.4

Radius: 10

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.35 AU - 2.17 AU

Year: 1532 Days

Day: 12.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,413,277 km

• M1: 125,513 km (0.089 R)
• M2: 562,787 km (0.118 R)
• M3: 1,254,378 km (0.069 R)
• M4: 1,574,817 km (0.08 R)
• M5: 2,223,772 km (0.064 R)
• M6: 2,950,818 km (0.105 R)
• M7: 3,398,415 km (0.108 R)
• M8: 4,017,451 km (0.083 R)
• M9: 5,905,825 km (0.091 R)
• M10: 6,574,826 km (0.107 R)
• M11: 7,174,115 km (0.088 R)
• M12: 7,885,154 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946

Radius: 13.7

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.71 AU - 1.93 AU

Year: 1611 Days

Day: 13.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 16,413,277 km

• M1: 170,392 km (0.075 R)
• M2: 737,218 km (0.108 R)
• M3: 1,404,574 km (0.081 R)
• M4: 1,964,818 km (0.109 R)
• M5: 2,419,446 km (0.077 R)
• M6: 2,886,192 km (0.12 R)
• M7: 3,380,762 km (0.087 R)
• M8: 3,895,828 km (0.104 R)
• M9: 4,502,896 km (0.064 R)
• M10: 4,956,477 km (0.093 R)
• M11: 6,201,430 km (0.119 R)
• M12: 7,113,828 km (0.075 R)
• M13: 8,084,119 km (0.092 R)
• M14: 10,642,393 km (0.11 R)
• M15: 13,029,825 km (0.101 R)
• M16: 14,882,744 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.2

Radius: 11.7

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.01 AU - 2.01 AU

Year: 1869 Days

Day: 6.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,413,277 km

• M1: 158,723 km (0.093 R)
• M2: 523,892 km (0.081 R)
• M3: 900,430 km (0.074 R)
• M4: 1,462,020 km (0.098 R)
• M5: 1,900,192 km (0.101 R)
• M6: 2,745,271 km (0.065 R)
• M7: 3,878,474 km (0.06 R)
• M8: 4,419,570 km (0.115 R)
• M9: 4,963,358 km (0.057 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.6

Radius: 12.1

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.94 AU - 3.86 AU

Year: 4113 Days

Day: 9.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 92.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,413,277 km

• M1: 150,495 km (0.111 R)
• M2: 594,053 km (0.073 R)
• M3: 1,479,972 km (0.088 R)
• M4: 1,948,961 km (0.073 R)
• M5: 2,599,113 km (0.107 R)
• M6: 3,210,071 km (0.117 R)
• M7: 3,805,620 km (0.117 R)
• M8: 4,699,617 km (0.062 R)
• M9: 5,241,461 km (0.089 R)
• M10: 6,045,250 km (0.111 R)
• M11: 6,450,959 km (0.085 R)
• M12: 6,847,992 km (0.11 R)
• M13: 8,291,013 km (0.049 R)
• M14: 8,793,213 km (0.096 R)
• M15: 10,676,052 km (0.053 R)
• M16: 14,182,028 km (0.105 R)
• M17: 15,645,095 km (0.106 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 19,576 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit