🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.45 AU - 0.63 AU

Year: 256 Days

Day: 29.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,039,412 km

• M1: 195,375 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.5

Radius: 13.1

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.79 AU - 1.29 AU

Year: 685 Days

Day: 12.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,039,412 km

• M1: 163,062 km (0.099 R)
• M2: 581,786 km (0.095 R)
• M3: 1,022,501 km (0.114 R)
• M4: 1,433,896 km (0.093 R)
• M5: 1,994,888 km (0.1 R)
• M6: 2,430,965 km (0.101 R)
• M7: 3,162,948 km (0.085 R)
• M8: 4,404,909 km (0.093 R)
• M9: 5,137,191 km (0.061 R)
• M10: 5,891,314 km (0.114 R)
• M11: 6,325,746 km (0.075 R)
• M12: 7,529,410 km (0.092 R)
• M13: 8,018,296 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543

Radius: 9.3

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.25 AU - 1.25 AU

Year: 902 Days

Day: 12.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,039,412 km

• M1: 116,387 km (0.051 R)
• M2: 692,189 km (0.09 R)
• M3: 1,263,653 km (0.094 R)
• M4: 1,565,392 km (0.037 R)
• M5: 2,245,763 km (0.033 R)
• M6: 2,984,328 km (0.067 R)
• M7: 3,444,790 km (0.11 R)
• M8: 4,090,455 km (0.079 R)
• M9: 4,608,961 km (0.113 R)
• M10: 4,937,179 km (0.091 R)
• M11: 5,602,141 km (0.098 R)
• M12: 5,976,585 km (0.076 R)
• M13: 6,325,746 km (0.071 R)
• M14: 7,573,243 km (0.086 R)
• M15: 7,958,008 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302

Radius: 12.3

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.14 AU - 2.46 AU

Year: 2252 Days

Day: 10 Hours

Environment

Temp: -192 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,039,412 km

• M1: 153,039 km (0.061 R)
• M2: 554,559 km (0.068 R)
• M3: 982,110 km (0.05 R)
• M4: 1,893,011 km (0.118 R)
• M5: 2,278,824 km (0.082 R)
• M6: 2,867,342 km (0.084 R)
• M7: 3,491,465 km (0.114 R)
• M8: 5,033,220 km (0.11 R)
• M9: 5,763,108 km (0.096 R)
• M10: 6,886,888 km (0.05 R)
• M11: 7,622,760 km (0.117 R)
• M12: 8,674,881 km (0.117 R)
• M13: 11,781,880 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.9

Radius: 11.9

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.79 AU - 5.89 AU

Year: 6875 Days

Day: 10.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 59,039,412 km

• M1: 148,999 km (0.03 R)
• M2: 654,191 km (0.119 R)
• M3: 1,325,138 km (0.048 R)
• M4: 2,149,422 km (0.087 R)
• M5: 2,601,657 km (0.103 R)
• M6: 3,267,666 km (0.075 R)
• M7: 4,019,096 km (0.093 R)
• M8: 4,882,426 km (0.103 R)
• M9: 5,358,596 km (0.11 R)
• M10: 6,369,728 km (0.106 R)
• M11: 6,830,040 km (0.12 R)
• M12: 7,312,344 km (0.108 R)
• M13: 10,169,663 km (0.091 R)
• M14: 10,799,919 km (0.118 R)
• M15: 11,507,667 km (0.093 R)
• M16: 13,184,659 km (0.105 R)
• M17: 16,224,338 km (0.11 R)
• M18: 21,695,581 km (0.04 R)
• M19: 22,254,179 km (0.084 R)
• M20: 25,455,723 km (0.085 R)
• M21: 26,256,820 km (0.117 R)
• M22: 30,815,516 km (0.084 R)
• M23: 33,598,635 km (0.064 R)
• M24: 35,544,753 km (0.115 R)
• M25: 36,321,465 km (0.074 R)
• M26: 38,486,745 km (0.086 R)
• M27: 39,423,676 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.5

Radius: 10.8

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.78 AU - 5.82 AU

Year: 9019 Days

Day: 5.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,039,412 km

• M1: 134,339 km (0.112 R)
• M2: 570,267 km (0.096 R)
• M3: 1,264,850 km (0.097 R)
• M4: 2,876,169 km (0.098 R)
• M5: 3,430,429 km (0.043 R)
• M6: 5,023,796 km (0.104 R)
• M7: 5,629,069 km (0.099 R)
• M8: 6,353,870 km (0.112 R)
• M9: 6,833,182 km (0.049 R)
• M10: 7,217,948 km (0.079 R)
• M11: 8,287,124 km (0.11 R)
• M12: 8,814,905 km (0.081 R)
• M13: 10,282,460 km (0.106 R)
• M14: 10,635,212 km (0.084 R)
• M15: 12,072,548 km (0.103 R)
• M16: 13,877,895 km (0.085 R)
• M17: 14,559,912 km (0.087 R)
• M18: 20,923,955 km (0.077 R)
• M19: 21,491,679 km (0.11 R)
• M20: 25,025,330 km (0.097 R)
• M21: 25,481,305 km (0.076 R)
• M22: 28,039,428 km (0.077 R)
• M23: 28,630,340 km (0.088 R)
• M24: 29,229,479 km (0.093 R)
• M25: 29,735,270 km (0.089 R)
• M26: 30,556,412 km (0.075 R)
• M27: 37,441,953 km (0.097 R)
• M28: 40,739,091 km (0.059 R)
• M29: 41,497,253 km (0.097 R)
• M30: 43,302,899 km (0.056 R)
• M31: 44,357,863 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659.6

Radius: 3.4

Gravity: 57.06 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.64 AU - 7.86 AU

Year: 13931 Days

Day: 23.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,039,412 km

• M1: 42,336 km (0.041 R)
• M2: 218,413 km (0.116 R)
• M3: 453,431 km (0.091 R)
• M4: 1,242,710 km (0.11 R)
• M5: 1,834,070 km (0.077 R)
• M6: 2,105,141 km (0.039 R)
• M7: 2,726,571 km (0.037 R)
• M8: 2,841,013 km (0.097 R)
• M9: 3,079,323 km (0.114 R)
• M10: 3,705,988 km (0.116 R)
• M11: 3,961,501 km (0.039 R)
• M12: 4,108,406 km (0.09 R)
• M13: 6,206,666 km (0.088 R)
• M14: 6,648,728 km (0.095 R)
• M15: 7,776,546 km (0.113 R)
• M16: 8,385,709 km (0.044 R)
• M17: 10,626,685 km (0.09 R)
• M18: 10,853,475 km (0.085 R)
• M19: 12,407,199 km (0.034 R)
• M20: 13,499,413 km (0.083 R)
• M21: 15,006,013 km (0.094 R)
• M22: 17,158,427 km (0.092 R)
• M23: 19,339,265 km (0.099 R)
• M24: 19,933,318 km (0.082 R)
• M25: 20,539,638 km (0.032 R)
• M26: 22,618,001 km (0.077 R)
• M27: 25,432,835 km (0.027 R)
• M28: 28,690,628 km (0.079 R)
• M29: 31,745,416 km (0.045 R)
• M30: 34,266,140 km (0.093 R)
• M31: 34,636,844 km (0.103 R)
• M32: 37,306,567 km (0.114 R)
• M33: 41,633,387 km (0.107 R)
• M34: 47,803,850 km (0.115 R)
• M35: 54,221,150 km (0.089 R)
• M36: 55,230,636 km (0.108 R)
• M37: 58,862,573 km (0.108 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 10,666 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit