🌌 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: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.61 AU - 0.73 AU

Year: 354 Days

Day: 46.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 13.1

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.95 AU - 1.17 AU

Year: 705 Days

Day: 11.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,715,189 km

• M1: 162,912 km (0.09 R)
• M2: 616,493 km (0.111 R)
• M3: 1,107,473 km (0.115 R)
• M4: 1,679,087 km (0.075 R)
• M5: 2,300,516 km (0.111 R)
• M6: 2,718,941 km (0.081 R)
• M7: 3,344,859 km (0.07 R)
• M8: 3,792,156 km (0.06 R)
• M9: 5,113,854 km (0.117 R)
• M10: 6,526,955 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527

Radius: 9.6

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.15 AU - 1.43 AU

Year: 946 Days

Day: 14.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,715,189 km

• M1: 119,379 km (0.093 R)
• M2: 488,886 km (0.093 R)
• M3: 839,842 km (0.096 R)
• M4: 1,244,355 km (0.04 R)
• M5: 1,544,299 km (0.114 R)
• M6: 1,939,686 km (0.1 R)
• M7: 2,434,556 km (0.113 R)
• M8: 2,826,053 km (0.07 R)
• M9: 3,193,017 km (0.105 R)
• M10: 3,634,779 km (0.06 R)
• M11: 4,506,187 km (0.101 R)
• M12: 8,332,901 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.9

Radius: 11

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.45 AU - 1.55 AU

Year: 1186 Days

Day: 9.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,715,189 km

• M1: 136,882 km (0.062 R)
• M2: 559,646 km (0.077 R)
• M3: 939,624 km (0.108 R)
• M4: 1,729,651 km (0.063 R)
• M5: 2,566,950 km (0.085 R)
• M6: 2,917,906 km (0.08 R)
• M7: 3,343,961 km (0.092 R)
• M8: 4,253,965 km (0.101 R)
• M9: 4,712,333 km (0.038 R)
• M10: 5,068,077 km (0.11 R)
• M11: 5,791,532 km (0.062 R)
• M12: 6,288,945 km (0.074 R)
• M13: 7,100,513 km (0.103 R)
• M14: 8,325,271 km (0.089 R)
• M15: 8,763,443 km (0.055 R)
• M16: 9,508,141 km (0.088 R)
• M17: 10,576,719 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.5

Radius: 10.4

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.63 AU - 2.15 AU

Year: 1678 Days

Day: 14.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,715,189 km

• M1: 140,472 km (0.119 R)
• M2: 491,429 km (0.074 R)
• M3: 829,819 km (0.112 R)
• M4: 1,371,364 km (0.11 R)
• M5: 2,403,439 km (0.054 R)
• M6: 3,465,285 km (0.051 R)
• M7: 5,108,917 km (0.109 R)
• M8: 6,064,548 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.1

Radius: 8.7

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.53 AU - 2.65 AU

Year: 2691 Days

Day: 12 Hours

Environment

Temp: -199 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,715,189 km

• M1: 108,159 km (0.074 R)
• M2: 387,458 km (0.06 R)
• M3: 805,285 km (0.091 R)
• M4: 1,179,579 km (0.073 R)
• M5: 1,583,643 km (0.094 R)
• M6: 2,181,137 km (0.064 R)
• M7: 2,481,978 km (0.117 R)
• M8: 3,411,729 km (0.119 R)
• M9: 3,877,726 km (0.108 R)
• M10: 4,259,799 km (0.099 R)
• M11: 5,386,571 km (0.112 R)
• M12: 6,504,964 km (0.067 R)
• M13: 7,074,932 km (0.042 R)
• M14: 7,554,543 km (0.107 R)
• M15: 7,865,258 km (0.065 R)
• M16: 9,802,101 km (0.106 R)
• M17: 10,172,057 km (0.098 R)
• M18: 12,940,216 km (0.074 R)
• M19: 13,749,540 km (0.096 R)
• M20: 17,166,356 km (0.085 R)
• M21: 17,487,841 km (0.096 R)
• M22: 18,588,732 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.5

Radius: 13.4

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.26 AU - 4.94 AU

Year: 5360 Days

Day: 8.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 23,715,189 km

• M1: 205,099 km (0.079 R)
• M2: 636,988 km (0.044 R)
• M3: 1,546,393 km (0.087 R)
• M4: 2,098,709 km (0.062 R)
• M5: 5,443,268 km (0.111 R)

Asteroid Belt

Center: 5.01 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.4

Radius: 9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 5.08 AU - 6.74 AU

Year: 9277 Days

Day: 15 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 23,715,189 km

• M1: 112,348 km (0.114 R)
• M2: 476,320 km (0.076 R)
• M3: 991,385 km (0.096 R)
• M4: 1,278,613 km (0.092 R)
• M5: 2,335,223 km (0.114 R)
• M6: 2,738,539 km (0.071 R)
• M7: 6,445,574 km (0.031 R)
• M8: 7,865,856 km (0.097 R)
• M9: 8,312,406 km (0.081 R)
• M10: 8,739,508 km (0.074 R)
• M11: 11,184,086 km (0.099 R)
• M12: 11,749,267 km (0.104 R)
• M13: 12,842,379 km (0.085 R)
• M14: 13,221,460 km (0.082 R)
• M15: 15,124,943 km (0.103 R)
• M16: 16,306,766 km (0.118 R)
• M17: 17,723,309 km (0.091 R)
• M18: 19,779,082 km (0.094 R)
• M19: 21,720,713 km (0.107 R)
• M20: 22,668,865 km (0.097 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 12,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit