🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.61 AU - 0.73 AU

Year: 354 Days

Day: 19.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 14.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.75 AU - 0.75 AU

Year: 419 Days

Day: 7.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 36,193,508 km

• M1: 184,155 km (0.03 R)
• M2: 782,846 km (0.09 R)
• M3: 1,401,582 km (0.1 R)
• M4: 2,077,914 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121

Radius: 9.1

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.66 AU - 0.94 AU

Year: 462 Days

Day: 8.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,193,508 km

• M1: 113,096 km (0.098 R)
• M2: 452,085 km (0.065 R)
• M3: 1,076,207 km (0.09 R)
• M4: 1,764,656 km (0.1 R)
• M5: 2,214,198 km (0.043 R)
• M6: 2,712,957 km (0.108 R)
• M7: 3,179,852 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433

Radius: 12.2

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.28 AU - 2.74 AU

Year: 2568 Days

Day: 10.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,193,508 km

• M1: 151,692 km (0.087 R)
• M2: 553,363 km (0.097 R)
• M3: 1,026,989 km (0.059 R)
• M4: 1,622,389 km (0.097 R)
• M5: 2,440,390 km (0.064 R)
• M6: 4,019,396 km (0.044 R)
• M7: 4,950,642 km (0.036 R)
• M8: 5,679,483 km (0.115 R)
• M9: 6,070,233 km (0.116 R)
• M10: 6,690,017 km (0.095 R)
• M11: 7,182,194 km (0.079 R)
• M12: 8,239,552 km (0.078 R)
• M13: 8,677,724 km (0.09 R)
• M14: 9,465,356 km (0.087 R)
• M15: 11,760,038 km (0.071 R)
• M16: 13,141,874 km (0.028 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.1

Radius: 8.4

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.25 AU - 4.93 AU

Year: 6349 Days

Day: 12.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,193,508 km

• M1: 105,915 km (0.08 R)
• M2: 382,971 km (0.093 R)
• M3: 672,742 km (0.101 R)
• M4: 1,596,658 km (0.098 R)
• M5: 2,166,028 km (0.074 R)
• M6: 3,812,801 km (0.081 R)
• M7: 5,034,866 km (0.109 R)
• M8: 5,664,224 km (0.104 R)
• M9: 6,102,247 km (0.089 R)
• M10: 6,437,645 km (0.06 R)
• M11: 6,980,087 km (0.11 R)
• M12: 8,303,131 km (0.082 R)
• M13: 10,503,117 km (0.11 R)
• M14: 12,280,788 km (0.086 R)
• M15: 14,787,600 km (0.109 R)
• M16: 16,363,464 km (0.116 R)
• M17: 16,774,409 km (0.112 R)
• M18: 17,494,723 km (0.056 R)
• M19: 18,360,895 km (0.088 R)
• M20: 19,713,559 km (0.03 R)
• M21: 21,618,687 km (0.116 R)
• M22: 23,643,495 km (0.091 R)
• M23: 25,009,922 km (0.035 R)
• M24: 25,633,894 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.3

Radius: 11.4

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.99 AU - 5.51 AU

Year: 7767 Days

Day: 5.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,193,508 km

• M1: 141,819 km (0.059 R)
• M2: 500,854 km (0.079 R)
• M3: 855,849 km (0.073 R)
• M4: 1,779,915 km (0.114 R)
• M5: 2,786,560 km (0.062 R)
• M6: 3,463,041 km (0.105 R)
• M7: 4,033,458 km (0.05 R)
• M8: 4,551,066 km (0.11 R)
• M9: 5,205,557 km (0.098 R)
• M10: 6,268,450 km (0.097 R)
• M11: 7,630,987 km (0.116 R)
• M12: 8,687,298 km (0.104 R)
• M13: 9,227,945 km (0.076 R)
• M14: 11,404,145 km (0.078 R)
• M15: 12,725,692 km (0.082 R)
• M16: 15,605,451 km (0.098 R)
• M17: 16,269,965 km (0.057 R)
• M18: 17,232,029 km (0.112 R)
• M19: 19,118,458 km (0.12 R)
• M20: 21,058,743 km (0.074 R)
• M21: 21,543,290 km (0.1 R)
• M22: 24,697,561 km (0.098 R)
• M23: 26,338,052 km (0.066 R)
• M24: 27,090,080 km (0.098 R)
• M25: 29,132,241 km (0.084 R)
• M26: 29,633,244 km (0.113 R)
• M27: 32,760,737 km (0.073 R)
• M28: 33,850,408 km (0.108 R)
• M29: 41,529,715 km (0.075 R)
• M30: 43,714,443 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376

Radius: 12.2

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 5.4 AU - 6.06 AU

Year: 8856 Days

Day: 6 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,193,508 km

• M1: 151,842 km (0.08 R)
• M2: 551,418 km (0.091 R)
• M3: 1,134,550 km (0.05 R)
• M4: 2,129,376 km (0.077 R)
• M5: 2,746,467 km (0.086 R)
• M6: 3,370,739 km (0.073 R)
• M7: 4,187,693 km (0.053 R)
• M8: 4,576,348 km (0.075 R)
• M9: 7,478,996 km (0.082 R)
• M10: 7,897,870 km (0.1 R)
• M11: 8,866,815 km (0.071 R)
• M12: 10,095,463 km (0.074 R)
• M13: 11,484,479 km (0.038 R)
• M14: 12,567,119 km (0.107 R)
• M15: 15,540,077 km (0.11 R)
• M16: 19,305,755 km (0.083 R)
• M17: 21,820,495 km (0.106 R)
• M18: 25,645,862 km (0.098 R)
• M19: 27,671,567 km (0.111 R)
• M20: 29,142,114 km (0.094 R)
• M21: 30,664,422 km (0.06 R)
• M22: 31,150,765 km (0.044 R)
• M23: 35,229,102 km (0.104 R)
• M24: 36,085,550 km (0.068 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 526 - 16,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit