🌌 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: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.64 AU - 0.7 AU

Year: 349 Days

Day: 18.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 141.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,383,732 km

• M1: 48,021 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.5

Radius: 8.3

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.71 AU - 0.81 AU

Year: 421 Days

Day: 14.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,383,732 km

• M1: 103,223 km (0.087 R)
• M2: 397,332 km (0.088 R)
• M3: 676,781 km (0.104 R)
• M4: 949,946 km (0.06 R)
• M5: 1,364,632 km (0.076 R)
• M6: 1,753,437 km (0.088 R)
• M7: 2,302,311 km (0.029 R)
• M8: 2,588,342 km (0.084 R)
• M9: 3,003,476 km (0.068 R)
• M10: 3,629,544 km (0.08 R)
• M11: 3,890,442 km (0.08 R)
• M12: 4,605,520 km (0.118 R)
• M13: 4,927,006 km (0.036 R)
• M14: 5,201,219 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276

Radius: 8.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.57 AU - 2.01 AU

Year: 1523 Days

Day: 5.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,383,732 km

• M1: 102,175 km (0.074 R)
• M2: 371,751 km (0.094 R)
• M3: 676,781 km (0.07 R)
• M4: 1,061,995 km (0.095 R)
• M5: 1,435,392 km (0.075 R)
• M6: 1,710,801 km (0.045 R)
• M7: 1,991,896 km (0.081 R)
• M8: 2,624,695 km (0.088 R)
• M9: 2,936,008 km (0.101 R)
• M10: 3,356,378 km (0.105 R)
• M11: 4,167,946 km (0.089 R)
• M12: 5,393,153 km (0.096 R)
• M13: 7,832,945 km (0.111 R)
• M14: 8,244,189 km (0.041 R)
• M15: 8,751,326 km (0.109 R)
• M16: 9,392,802 km (0.116 R)
• M17: 9,652,204 km (0.119 R)
• M18: 9,946,014 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362

Radius: 13.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.61 AU - 2.57 AU

Year: 1921 Days

Day: 13.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,383,732 km

• M1: 169,794 km (0.083 R)
• M2: 639,381 km (0.116 R)
• M3: 1,132,905 km (0.114 R)
• M4: 2,287,651 km (0.105 R)
• M5: 3,174,616 km (0.077 R)
• M6: 3,698,359 km (0.063 R)
• M7: 5,758,770 km (0.117 R)
• M8: 7,113,080 km (0.098 R)
• M9: 9,576,059 km (0.12 R)
• M10: 11,329,496 km (0.117 R)
• M11: 12,524,334 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.8

Radius: 9.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.62 AU - 2.68 AU

Year: 2743 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,383,732 km

• M1: 116,986 km (0.042 R)
• M2: 583,132 km (0.099 R)
• M3: 917,035 km (0.087 R)
• M4: 1,212,940 km (0.093 R)
• M5: 1,898,696 km (0.107 R)
• M6: 2,529,550 km (0.08 R)
• M7: 3,237,747 km (0.071 R)
• M8: 4,340,433 km (0.117 R)
• M9: 5,493,533 km (0.06 R)
• M10: 6,540,419 km (0.057 R)
• M11: 7,027,809 km (0.116 R)
• M12: 7,539,284 km (0.103 R)
• M13: 8,801,591 km (0.091 R)
• M14: 9,807,188 km (0.075 R)
• M15: 10,138,547 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.6

Radius: 9.9

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.59 AU - 3.95 AU

Year: 3760 Days

Day: 5.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,383,732 km

• M1: 124,765 km (0.055 R)
• M2: 781,798 km (0.098 R)
• M3: 1,257,370 km (0.087 R)
• M4: 1,750,744 km (0.074 R)
• M5: 2,071,781 km (0.084 R)
• M6: 2,662,244 km (0.059 R)
• M7: 3,262,730 km (0.095 R)
• M8: 3,669,187 km (0.084 R)
• M9: 4,318,591 km (0.08 R)
• M10: 5,310,575 km (0.104 R)
• M11: 6,022,062 km (0.105 R)
• M12: 7,291,400 km (0.099 R)
• M13: 9,316,507 km (0.104 R)
• M14: 11,552,097 km (0.087 R)
• M15: 12,744,991 km (0.096 R)
• M16: 13,295,212 km (0.1 R)
• M17: 14,712,801 km (0.11 R)
• M18: 15,486,372 km (0.052 R)
• M19: 16,579,184 km (0.07 R)
• M20: 17,661,225 km (0.048 R)
• M21: 18,032,228 km (0.056 R)
• M22: 18,471,597 km (0.116 R)
• M23: 19,437,102 km (0.107 R)
• M24: 21,259,204 km (0.078 R)
• M25: 21,679,125 km (0.089 R)
• M26: 23,712,310 km (0.098 R)
• M27: 24,088,399 km (0.058 R)
• M28: 24,544,822 km (0.113 R)
• M29: 25,790,374 km (0.088 R)
• M30: 26,108,269 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.8

Radius: 10.9

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.85 AU - 4.27 AU

Year: 4271 Days

Day: 11.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,383,732 km

• M1: 135,536 km (0.07 R)
• M2: 497,862 km (0.11 R)
• M3: 886,667 km (0.068 R)
• M4: 1,259,464 km (0.075 R)
• M5: 2,260,573 km (0.09 R)
• M6: 2,635,765 km (0.083 R)
• M7: 3,388,990 km (0.111 R)
• M8: 4,020,592 km (0.109 R)
• M9: 4,377,084 km (0.107 R)
• M10: 6,330,982 km (0.038 R)
• M11: 6,684,033 km (0.105 R)
• M12: 7,465,083 km (0.048 R)
• M13: 8,690,440 km (0.119 R)
• M14: 11,162,096 km (0.106 R)
• M15: 14,123,086 km (0.096 R)
• M16: 14,728,060 km (0.102 R)
• M17: 15,121,951 km (0.056 R)
• M18: 25,031,464 km (0.068 R)
• M19: 25,673,987 km (0.059 R)
• M20: 26,081,042 km (0.06 R)
• M21: 26,492,437 km (0.092 R)
• M22: 28,181,396 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.5

Radius: 11.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.13 AU - 4.71 AU

Year: 4935 Days

Day: 11.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,383,732 km

• M1: 138,079 km (0.071 R)
• M2: 638,185 km (0.102 R)
• M3: 1,000,810 km (0.102 R)
• M4: 1,416,093 km (0.105 R)
• M5: 5,014,820 km (0.111 R)
• M6: 6,597,266 km (0.09 R)
• M7: 8,523,937 km (0.101 R)
• M8: 9,412,698 km (0.109 R)
• M9: 12,451,629 km (0.088 R)
• M10: 14,412,109 km (0.081 R)
• M11: 18,238,374 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.3

Radius: 9.2

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.02 AU - 6.32 AU

Year: 7474 Days

Day: 6 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,383,732 km

• M1: 114,442 km (0.117 R)
• M2: 898,485 km (0.086 R)
• M3: 1,587,084 km (0.079 R)
• M4: 1,889,122 km (0.112 R)
• M5: 2,213,300 km (0.106 R)
• M6: 2,935,858 km (0.099 R)
• M7: 3,574,791 km (0.062 R)
• M8: 3,952,077 km (0.097 R)
• M9: 4,252,170 km (0.109 R)
• M10: 4,567,672 km (0.112 R)
• M11: 6,319,762 km (0.087 R)
• M12: 7,801,828 km (0.074 R)
• M13: 8,479,806 km (0.097 R)
• M14: 9,907,418 km (0.096 R)
• M15: 16,325,316 km (0.039 R)
• M16: 17,234,123 km (0.097 R)
• M17: 17,971,641 km (0.114 R)
• M18: 23,085,195 km (0.114 R)
• M19: 23,408,327 km (0.1 R)
• M20: 25,240,003 km (0.063 R)
• M21: 25,929,051 km (0.108 R)
• M22: 28,998,500 km (0.1 R)
• M23: 29,564,279 km (0.105 R)
• M24: 30,815,217 km (0.027 R)
• M25: 31,801,216 km (0.032 R)
• M26: 33,525,631 km (0.105 R)
• M27: 35,848,437 km (0.114 R)
• M28: 36,500,085 km (0.071 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.8

Radius: 10.3

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.73 AU - 5.77 AU

Year: 8767 Days

Day: 10.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,383,732 km

• M1: 160,219 km (0.074 R)
• M2: 758,012 km (0.047 R)
• M3: 1,338,602 km (0.09 R)
• M4: 2,229,457 km (0.106 R)
• M5: 3,409,934 km (0.075 R)
• M6: 4,112,595 km (0.03 R)
• M7: 4,881,079 km (0.117 R)
• M8: 5,556,364 km (0.109 R)
• M9: 7,765,177 km (0.108 R)
• M10: 8,397,976 km (0.12 R)
• M11: 8,727,091 km (0.1 R)
• M12: 10,223,369 km (0.036 R)
• M13: 10,742,174 km (0.116 R)
• M14: 14,232,143 km (0.06 R)
• M15: 14,760,224 km (0.086 R)
• M16: 16,680,013 km (0.098 R)
• M17: 18,690,908 km (0.099 R)
• M18: 26,294,967 km (0.072 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 11,496 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit