🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.43 AU - 0.63 AU

Year: 249 Days

Day: 36.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.6

Radius: 10.3

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.92 AU - 1 AU

Year: 607 Days

Day: 13.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,653,806 km

• M1: 128,056 km (0.095 R)
• M2: 525,687 km (0.106 R)
• M3: 895,044 km (0.112 R)
• M4: 1,402,630 km (0.105 R)
• M5: 1,882,689 km (0.12 R)
• M6: 2,643,245 km (0.071 R)
• M7: 3,767,174 km (0.114 R)
• M8: 4,702,908 km (0.111 R)
• M9: 5,052,668 km (0.097 R)
• M10: 5,840,600 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320

Radius: 9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.03 AU - 1.45 AU

Year: 892 Days

Day: 12.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,653,806 km

• M1: 112,198 km (0.073 R)
• M2: 430,842 km (0.1 R)
• M3: 828,174 km (0.092 R)
• M4: 1,139,786 km (0.079 R)
• M5: 1,871,170 km (0.119 R)
• M6: 2,471,955 km (0.109 R)
• M7: 3,171,475 km (0.032 R)
• M8: 4,231,825 km (0.102 R)
• M9: 5,370,564 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 8.5

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.18 AU - 1.64 AU

Year: 1081 Days

Day: 12.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,653,806 km

• M1: 115,490 km (0.054 R)
• M2: 412,441 km (0.09 R)
• M3: 1,083,687 km (0.095 R)
• M4: 1,507,498 km (0.065 R)
• M5: 2,013,737 km (0.094 R)
• M6: 2,339,561 km (0.09 R)
• M7: 3,270,209 km (0.099 R)
• M8: 5,384,177 km (0.098 R)
• M9: 5,910,462 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.8

Radius: 10.7

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.39 AU - 1.77 AU

Year: 1282 Days

Day: 13.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,653,806 km

• M1: 133,292 km (0.114 R)
• M2: 531,970 km (0.087 R)
• M3: 953,686 km (0.078 R)
• M4: 1,496,128 km (0.097 R)
• M5: 1,894,358 km (0.117 R)
• M6: 2,270,746 km (0.036 R)
• M7: 2,722,980 km (0.07 R)
• M8: 3,384,203 km (0.037 R)
• M9: 4,601,032 km (0.112 R)
• M10: 4,966,201 km (0.044 R)
• M11: 5,582,544 km (0.083 R)
• M12: 6,088,933 km (0.116 R)
• M13: 6,530,246 km (0.059 R)
• M14: 7,425,141 km (0.097 R)
• M15: 8,148,596 km (0.12 R)
• M16: 8,570,312 km (0.115 R)
• M17: 9,923,874 km (0.116 R)
• M18: 10,835,075 km (0.107 R)
• M19: 11,730,268 km (0.114 R)
• M20: 12,196,116 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.3

Radius: 12.6

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.29 AU - 6.31 AU

Year: 9019 Days

Day: 5.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 85,653,806 km

• M1: 156,928 km (0.111 R)
• M2: 664,514 km (0.11 R)
• M3: 1,164,470 km (0.091 R)
• M4: 2,027,051 km (0.078 R)
• M5: 2,667,480 km (0.058 R)
• M6: 3,278,737 km (0.06 R)
• M7: 4,695,728 km (0.064 R)
• M8: 5,301,449 km (0.111 R)
• M9: 5,993,190 km (0.078 R)
• M10: 7,801,080 km (0.1 R)
• M11: 8,219,505 km (0.108 R)
• M12: 8,830,463 km (0.1 R)
• M13: 10,045,647 km (0.107 R)
• M14: 13,869,518 km (0.069 R)
• M15: 14,298,714 km (0.063 R)
• M16: 16,647,550 km (0.099 R)
• M17: 19,471,060 km (0.054 R)
• M18: 21,849,667 km (0.071 R)
• M19: 22,515,377 km (0.091 R)
• M20: 24,772,809 km (0.087 R)
• M21: 25,314,503 km (0.11 R)
• M22: 27,753,547 km (0.09 R)
• M23: 31,594,472 km (0.087 R)
• M24: 32,231,609 km (0.097 R)
• M25: 36,005,964 km (0.098 R)
• M26: 36,817,981 km (0.099 R)
• M27: 39,205,563 km (0.084 R)
• M28: 42,848,421 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.5

Radius: 8

Gravity: 15.15 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.36 AU - 6.42 AU

Year: 9230 Days

Day: 5.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,653,806 km

• M1: 125,513 km (0.052 R)
• M2: 416,630 km (0.118 R)
• M3: 812,167 km (0.112 R)
• M4: 1,135,448 km (0.03 R)
• M5: 1,529,937 km (0.11 R)
• M6: 1,863,541 km (0.12 R)
• M7: 3,166,538 km (0.083 R)
• M8: 4,556,153 km (0.112 R)
• M9: 4,927,455 km (0.118 R)
• M10: 5,765,801 km (0.068 R)
• M11: 6,089,830 km (0.072 R)
• M12: 6,464,124 km (0.069 R)
• M13: 8,251,519 km (0.079 R)
• M14: 10,345,590 km (0.113 R)
• M15: 12,117,428 km (0.082 R)
• M16: 12,411,537 km (0.087 R)
• M17: 13,698,976 km (0.064 R)
• M18: 14,342,397 km (0.075 R)
• M19: 17,414,838 km (0.106 R)
• M20: 19,104,246 km (0.079 R)
• M21: 21,153,438 km (0.062 R)
• M22: 21,666,110 km (0.083 R)
• M23: 22,539,163 km (0.075 R)
• M24: 24,542,129 km (0.06 R)
• M25: 27,866,493 km (0.075 R)
• M26: 28,898,718 km (0.104 R)
• M27: 32,035,786 km (0.083 R)
• M28: 36,480,638 km (0.055 R)
• M29: 41,187,286 km (0.091 R)
• M30: 42,525,588 km (0.084 R)
• M31: 43,754,535 km (0.101 R)
• M32: 44,030,842 km (0.08 R)
• M33: 48,022,263 km (0.117 R)
• M34: 48,759,481 km (0.057 R)
• M35: 49,804,273 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.4

Radius: 3

Gravity: 102.93 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.68 AU - 10.4 AU

Year: 20541 Days

Day: 24.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 85,653,806 km

• M1: 54,902 km (0.081 R)
• M2: 185,202 km (0.07 R)
• M3: 332,107 km (0.045 R)
• M4: 1,106,426 km (0.057 R)
• M5: 1,440,328 km (0.093 R)
• M6: 2,040,216 km (0.03 R)
• M7: 2,637,560 km (0.064 R)
• M8: 3,114,179 km (0.07 R)
• M9: 3,522,581 km (0.112 R)
• M10: 4,661,470 km (0.097 R)
• M11: 6,987,866 km (0.111 R)
• M12: 7,330,445 km (0.105 R)
• M13: 7,632,932 km (0.054 R)
• M14: 8,590,209 km (0.086 R)
• M15: 11,731,764 km (0.101 R)
• M16: 13,820,599 km (0.103 R)
• M17: 14,437,691 km (0.115 R)
• M18: 15,234,598 km (0.09 R)
• M19: 16,313,797 km (0.088 R)
• M20: 16,742,096 km (0.074 R)
• M21: 18,163,126 km (0.066 R)
• M22: 23,333,378 km (0.088 R)
• M23: 25,101,924 km (0.092 R)
• M24: 28,903,206 km (0.093 R)
• M25: 30,037,607 km (0.071 R)
• M26: 36,883,953 km (0.082 R)
• M27: 39,736,336 km (0.108 R)
• M28: 40,823,314 km (0.03 R)
• M29: 42,249,580 km (0.073 R)
• M30: 42,410,099 km (0.113 R)
• M31: 43,218,675 km (0.082 R)
• M32: 44,037,574 km (0.069 R)
• M33: 52,616,563 km (0.083 R)
• M34: 54,494,166 km (0.052 R)
• M35: 61,211,709 km (0.111 R)
• M36: 71,603,824 km (0.107 R)
• M37: 77,935,704 km (0.115 R)
• M38: 81,609,678 km (0.076 R)
• M39: 81,858,608 km (0.091 R)
• M40: 84,121,875 km (0.065 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 18,736 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit