🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.87 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.49 AU - 3.97 AU

Year: 2520 Days

Day: 14.8 Hours

Environment

Temp: -117 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.02 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.6

Radius: 8.6

Gravity: 13.29 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 6.15 AU - 6.47 AU

Year: 5545 Days

Day: 11.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 91,390,200 km

• M1: 106,962 km (0.055 R)
• M2: 689,197 km (0.101 R)
• M3: 1,003,503 km (0.075 R)
• M4: 1,378,993 km (0.107 R)
• M5: 1,790,238 km (0.117 R)
• M6: 2,248,456 km (0.08 R)
• M7: 2,614,372 km (0.033 R)
• M8: 2,919,552 km (0.032 R)
• M9: 3,932,479 km (0.107 R)
• M10: 4,257,406 km (0.109 R)
• M11: 4,627,212 km (0.111 R)
• M12: 5,646,721 km (0.118 R)
• M13: 6,808,947 km (0.084 R)
• M14: 8,405,306 km (0.102 R)
• M15: 9,031,672 km (0.025 R)
• M16: 13,293,716 km (0.096 R)
• M17: 13,685,812 km (0.057 R)
• M18: 18,873,716 km (0.09 R)
• M19: 19,728,818 km (0.096 R)
• M20: 21,363,174 km (0.089 R)
• M21: 22,449,105 km (0.101 R)
• M22: 23,490,007 km (0.116 R)
• M23: 27,885,342 km (0.109 R)
• M24: 28,159,705 km (0.057 R)
• M25: 28,436,012 km (0.089 R)
• M26: 31,397,302 km (0.107 R)
• M27: 32,093,231 km (0.091 R)
• M28: 35,621,198 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349

Radius: 8.8

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.24 AU - 8.8 AU

Year: 7214 Days

Day: 8.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,390,200 km

• M1: 109,506 km (0.112 R)
• M2: 385,514 km (0.113 R)
• M3: 1,369,569 km (0.09 R)
• M4: 1,820,008 km (0.11 R)
• M5: 3,174,916 km (0.055 R)
• M6: 3,610,245 km (0.105 R)
• M7: 3,899,268 km (0.102 R)
• M8: 6,475,942 km (0.105 R)
• M9: 9,338,497 km (0.093 R)
• M10: 10,102,494 km (0.12 R)
• M11: 11,997,600 km (0.09 R)
• M12: 12,543,931 km (0.03 R)
• M13: 16,843,523 km (0.084 R)
• M14: 19,423,638 km (0.119 R)
• M15: 21,020,894 km (0.091 R)
• M16: 22,108,471 km (0.116 R)
• M17: 22,404,824 km (0.116 R)
• M18: 23,770,952 km (0.11 R)
• M19: 24,553,499 km (0.044 R)
• M20: 24,871,394 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 14

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 9 AU - 9.66 AU

Year: 9970 Days

Day: 7.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 91,390,200 km

• M1: 185,950 km (0.034 R)
• M2: 690,544 km (0.101 R)
• M3: 1,591,273 km (0.091 R)
• M4: 2,849,241 km (0.107 R)
• M5: 3,425,642 km (0.049 R)
• M6: 4,422,113 km (0.114 R)
• M7: 5,849,426 km (0.096 R)
• M8: 6,514,987 km (0.117 R)
• M9: 6,986,520 km (0.044 R)
• M10: 7,823,221 km (0.026 R)
• M11: 10,312,978 km (0.064 R)
• M12: 11,511,107 km (0.108 R)
• M13: 12,027,220 km (0.107 R)
• M14: 13,605,627 km (0.116 R)
• M15: 15,387,039 km (0.095 R)
• M16: 17,618,740 km (0.07 R)
• M17: 18,382,736 km (0.099 R)
• M18: 19,650,728 km (0.11 R)
• M19: 21,402,668 km (0.089 R)
• M20: 22,009,138 km (0.104 R)
• M21: 23,347,440 km (0.113 R)
• M22: 23,990,263 km (0.052 R)
• M23: 26,284,346 km (0.119 R)
• M24: 27,383,142 km (0.108 R)
• M25: 29,035,900 km (0.111 R)
• M26: 29,672,588 km (0.114 R)
• M27: 30,535,917 km (0.118 R)
• M28: 33,226,585 km (0.075 R)
• M29: 40,506,615 km (0.104 R)
• M30: 42,786,487 km (0.056 R)
• M31: 44,868,141 km (0.062 R)
• M32: 47,747,751 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.2

Radius: 13.8

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 8.05 AU - 13.07 AU

Year: 12005 Days

Day: 13.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 91,390,200 km

• M1: 175,179 km (0.115 R)
• M2: 725,849 km (0.081 R)
• M3: 1,214,286 km (0.043 R)
• M4: 1,652,458 km (0.109 R)
• M5: 2,198,790 km (0.089 R)
• M6: 4,356,290 km (0.069 R)
• M7: 5,238,618 km (0.089 R)
• M8: 6,043,156 km (0.048 R)
• M9: 6,719,936 km (0.081 R)
• M10: 7,670,481 km (0.063 R)
• M11: 10,054,622 km (0.114 R)
• M12: 15,066,301 km (0.103 R)
• M13: 16,539,989 km (0.102 R)
• M14: 18,514,831 km (0.076 R)
• M15: 21,994,777 km (0.112 R)
• M16: 23,118,556 km (0.07 R)
• M17: 24,083,911 km (0.083 R)
• M18: 26,719,825 km (0.072 R)
• M19: 27,354,419 km (0.065 R)
• M20: 29,993,775 km (0.116 R)
• M21: 35,266,501 km (0.078 R)
• M22: 36,030,348 km (0.059 R)
• M23: 37,855,592 km (0.076 R)
• M24: 40,291,793 km (0.103 R)
• M25: 41,831,155 km (0.109 R)
• M26: 44,581,811 km (0.089 R)
• M27: 45,325,312 km (0.099 R)
• M28: 50,441,260 km (0.057 R)
• M29: 54,057,939 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.6

Radius: 5.3

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 12.9 AU - 19.16 AU

Year: 22453 Days

Day: 16.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 91,390,200 km

• M1: 66,272 km (0.104 R)
• M2: 298,597 km (0.1 R)
• M3: 580,440 km (0.071 R)
• M4: 1,038,658 km (0.109 R)
• M5: 2,263,117 km (0.037 R)
• M6: 3,370,889 km (0.076 R)
• M7: 6,248,254 km (0.073 R)
• M8: 6,730,707 km (0.069 R)
• M9: 22,480,222 km (0.106 R)
• M10: 31,282,560 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 3.5

Gravity: 67.14 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 12.76 AU - 20.78 AU

Year: 24026 Days

Day: 22.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 91,390,200 km

• M1: 56,398 km (0.074 R)
• M2: 178,919 km (0.105 R)
• M3: 299,645 km (0.056 R)
• M4: 476,619 km (0.084 R)
• M5: 660,175 km (0.04 R)
• M6: 819,048 km (0.113 R)
• M7: 1,016,218 km (0.072 R)
• M8: 1,985,014 km (0.061 R)
• M9: 2,113,968 km (0.1 R)
• M10: 3,036,837 km (0.095 R)
• M11: 4,899,330 km (0.093 R)
• M12: 5,845,986 km (0.079 R)
• M13: 7,719,101 km (0.116 R)
• M14: 10,336,315 km (0.083 R)
• M15: 10,790,345 km (0.066 R)
• M16: 11,393,523 km (0.106 R)
• M17: 13,953,143 km (0.08 R)
• M18: 16,257,997 km (0.098 R)
• M19: 19,382,349 km (0.115 R)
• M20: 19,873,180 km (0.049 R)
• M21: 27,149,770 km (0.114 R)
• M22: 41,422,154 km (0.076 R)
• M23: 47,164,618 km (0.062 R)
• M24: 48,588,940 km (0.078 R)
• M25: 53,799,284 km (0.069 R)
• M26: 55,157,633 km (0.071 R)
• M27: 56,340,054 km (0.067 R)
• M28: 82,386,091 km (0.088 R)

Kuiper Belt

Range: 31.4 - 50.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 16,032 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit