🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.5

Radius: 12

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.55 AU - 0.57 AU

Year: 295 Days

Day: 6.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 87,969,993 km

• M1: 149,448 km (0.06 R)
• M2: 539,749 km (0.089 R)
• M3: 1,077,105 km (0.093 R)
• M4: 1,647,222 km (0.111 R)

Asteroid Belt

Center: 1.13 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.4

Radius: 13.1

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.51 AU - 1.89 AU

Year: 1558 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,969,993 km

• M1: 163,810 km (0.083 R)
• M2: 581,786 km (0.099 R)
• M3: 1,155,793 km (0.118 R)
• M4: 1,805,497 km (0.04 R)
• M5: 2,298,721 km (0.118 R)
• M6: 2,730,610 km (0.079 R)
• M7: 3,308,955 km (0.025 R)
• M8: 4,367,211 km (0.107 R)
• M9: 4,893,795 km (0.083 R)
• M10: 5,843,143 km (0.052 R)
• M11: 7,119,363 km (0.088 R)
• M12: 7,547,213 km (0.06 R)
• M13: 8,425,651 km (0.039 R)
• M14: 9,371,259 km (0.104 R)
• M15: 10,625,189 km (0.12 R)
• M16: 11,728,772 km (0.037 R)
• M17: 12,213,769 km (0.034 R)
• M18: 12,750,975 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.5

Radius: 13.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.67 AU - 1.95 AU

Year: 1712 Days

Day: 5.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,969,993 km

• M1: 171,738 km (0.106 R)
• M2: 663,766 km (0.115 R)
• M3: 1,163,273 km (0.119 R)
• M4: 1,968,259 km (0.055 R)
• M5: 2,537,479 km (0.091 R)
• M6: 3,015,743 km (0.044 R)
• M7: 3,584,066 km (0.094 R)
• M8: 4,614,646 km (0.097 R)
• M9: 6,064,099 km (0.083 R)
• M10: 6,609,384 km (0.09 R)
• M11: 7,500,987 km (0.052 R)
• M12: 8,208,136 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.9

Radius: 12.5

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.7 AU - 3.88 AU

Year: 5186 Days

Day: 11.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,969,993 km

• M1: 155,432 km (0.053 R)
• M2: 705,204 km (0.111 R)
• M3: 3,455,711 km (0.116 R)
• M4: 4,730,883 km (0.058 R)
• M5: 7,462,091 km (0.072 R)
• M6: 8,039,689 km (0.106 R)
• M7: 9,698,729 km (0.081 R)
• M8: 12,350,651 km (0.068 R)
• M9: 15,684,738 km (0.107 R)
• M10: 23,379,754 km (0.118 R)
• M11: 23,916,212 km (0.088 R)
• M12: 24,696,963 km (0.07 R)
• M13: 27,057,168 km (0.11 R)
• M14: 29,475,268 km (0.094 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.6

Radius: 6.7

Gravity: 11.17 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.33 AU - 7.15 AU

Year: 9667 Days

Day: 22.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 87,969,993 km

• M1: 83,625 km (0.074 R)
• M2: 376,987 km (0.081 R)
• M3: 616,493 km (0.116 R)
• M4: 850,165 km (0.085 R)
• M5: 2,116,361 km (0.1 R)
• M6: 2,378,307 km (0.116 R)
• M7: 2,701,139 km (0.034 R)
• M8: 3,206,481 km (0.092 R)
• M9: 3,823,123 km (0.077 R)
• M10: 4,159,868 km (0.086 R)
• M11: 5,103,831 km (0.115 R)
• M12: 5,675,294 km (0.05 R)
• M13: 6,466,368 km (0.04 R)
• M14: 6,758,233 km (0.118 R)
• M15: 7,686,488 km (0.072 R)
• M16: 8,479,656 km (0.096 R)
• M17: 9,372,157 km (0.116 R)
• M18: 10,375,061 km (0.102 R)
• M19: 13,163,565 km (0.092 R)
• M20: 13,751,784 km (0.035 R)
• M21: 14,357,356 km (0.115 R)
• M22: 14,666,725 km (0.114 R)
• M23: 15,234,898 km (0.113 R)
• M24: 17,165,608 km (0.115 R)
• M25: 21,025,682 km (0.081 R)
• M26: 21,505,143 km (0.099 R)
• M27: 22,819,809 km (0.113 R)
• M28: 28,908,741 km (0.118 R)
• M29: 36,799,580 km (0.083 R)
• M30: 39,035,021 km (0.101 R)
• M31: 40,124,692 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.3

Radius: 6.9

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.91 AU - 6.59 AU

Year: 9692 Days

Day: 18.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,969,993 km

• M1: 89,908 km (0.063 R)
• M2: 460,313 km (0.069 R)
• M3: 721,959 km (0.047 R)
• M4: 983,157 km (0.119 R)
• M5: 1,589,178 km (0.05 R)
• M6: 2,224,221 km (0.044 R)
• M7: 3,513,156 km (0.093 R)
• M8: 5,394,798 km (0.051 R)
• M9: 5,653,154 km (0.055 R)
• M10: 7,499,940 km (0.084 R)
• M11: 8,111,795 km (0.099 R)
• M12: 12,613,494 km (0.095 R)
• M13: 13,536,812 km (0.089 R)
• M14: 14,197,287 km (0.1 R)
• M15: 16,576,790 km (0.062 R)
• M16: 17,825,185 km (0.085 R)
• M17: 18,691,656 km (0.069 R)
• M18: 21,458,917 km (0.074 R)
• M19: 23,705,578 km (0.081 R)
• M20: 24,312,646 km (0.103 R)
• M21: 25,108,357 km (0.034 R)
• M22: 33,067,562 km (0.097 R)
• M23: 34,927,812 km (0.114 R)
• M24: 38,378,885 km (0.114 R)
• M25: 40,309,296 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.6

Radius: 5.4

Gravity: 30.47 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.74 AU - 12.02 AU

Year: 21829 Days

Day: 19.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,969,993 km

• M1: 70,909 km (0.082 R)
• M2: 904,768 km (0.094 R)
• M3: 1,955,693 km (0.087 R)
• M4: 2,536,731 km (0.085 R)
• M5: 7,302,620 km (0.111 R)
• M6: 8,347,262 km (0.066 R)
• M7: 12,787,028 km (0.102 R)
• M8: 15,339,466 km (0.106 R)
• M9: 16,260,690 km (0.036 R)
• M10: 19,726,424 km (0.101 R)
• M11: 20,315,241 km (0.111 R)
• M12: 23,327,095 km (0.069 R)
• M13: 27,584,800 km (0.096 R)
• M14: 33,703,802 km (0.084 R)
• M15: 48,534,037 km (0.094 R)
• M16: 49,966,437 km (0.119 R)
• M17: 56,762,070 km (0.058 R)
• M18: 58,753,517 km (0.096 R)
• M19: 60,379,795 km (0.085 R)
• M20: 64,576,464 km (0.115 R)
• M21: 64,791,287 km (0.077 R)
• M22: 78,814,142 km (0.049 R)
• M23: 87,181,301 km (0.102 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 14,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit