🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.59 AU - 0.75 AU

Year: 201 Days

Day: 21.5 Hours

Environment

Temp: 212 °C

Axial Tilt: 130 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.86 AU - 1.04 AU

Year: 340 Days

Day: 26 Hours

Environment

Temp: 47 °C

Axial Tilt: 28.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.35 AU - 1.83 AU

Year: 736 Days

Day: 27.2 Hours

Environment

Temp: -42 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 59,312,457 km

• M1: 35,305 km (0.12 R)
• M2: 475,422 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 9.5

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4 AU - 5.54 AU

Year: 3824 Days

Day: 12.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,312,457 km

• M1: 118,182 km (0.112 R)
• M2: 693,386 km (0.054 R)
• M3: 1,133,054 km (0.103 R)
• M4: 1,973,794 km (0.115 R)
• M5: 2,373,819 km (0.069 R)
• M6: 3,051,049 km (0.088 R)
• M7: 4,312,308 km (0.079 R)
• M8: 4,610,307 km (0.118 R)
• M9: 5,200,471 km (0.088 R)
• M10: 6,073,524 km (0.099 R)
• M11: 8,269,321 km (0.115 R)
• M12: 8,731,280 km (0.071 R)
• M13: 9,175,585 km (0.11 R)
• M14: 10,987,066 km (0.046 R)
• M15: 12,376,381 km (0.074 R)
• M16: 12,893,691 km (0.083 R)
• M17: 16,666,549 km (0.084 R)
• M18: 17,672,894 km (0.07 R)
• M19: 18,831,829 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.1

Radius: 14

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.51 AU - 5.83 AU

Year: 4315 Days

Day: 9.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,312,457 km

• M1: 197,469 km (0.059 R)
• M2: 1,095,655 km (0.097 R)
• M3: 1,730,847 km (0.11 R)
• M4: 5,160,977 km (0.114 R)
• M5: 6,266,206 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.9

Radius: 13.9

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.99 AU - 7.79 AU

Year: 7375 Days

Day: 11.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,312,457 km

• M1: 173,683 km (0.093 R)
• M2: 816,505 km (0.086 R)
• M3: 1,432,699 km (0.066 R)
• M4: 2,775,340 km (0.118 R)
• M5: 3,869,499 km (0.112 R)
• M6: 5,350,966 km (0.105 R)
• M7: 5,994,985 km (0.095 R)
• M8: 7,255,646 km (0.1 R)
• M9: 8,563,880 km (0.102 R)
• M10: 10,813,383 km (0.029 R)
• M11: 11,395,468 km (0.086 R)
• M12: 19,254,293 km (0.099 R)
• M13: 19,966,229 km (0.079 R)
• M14: 20,621,917 km (0.119 R)
• M15: 21,518,457 km (0.09 R)
• M16: 23,792,494 km (0.104 R)
• M17: 25,451,385 km (0.032 R)
• M18: 26,483,012 km (0.078 R)
• M19: 28,906,049 km (0.099 R)
• M20: 30,697,483 km (0.067 R)
• M21: 31,375,760 km (0.088 R)
• M22: 34,918,387 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 14.8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 8.26 AU - 9.38 AU

Year: 9616 Days

Day: 10.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,312,457 km

• M1: 184,305 km (0.039 R)
• M2: 1,042,548 km (0.051 R)
• M3: 1,534,874 km (0.086 R)
• M4: 2,154,808 km (0.066 R)
• M5: 2,940,047 km (0.118 R)
• M6: 3,837,933 km (0.045 R)
• M7: 4,391,445 km (0.064 R)
• M8: 5,352,462 km (0.046 R)
• M9: 5,851,222 km (0.101 R)
• M10: 6,553,284 km (0.117 R)
• M11: 8,006,478 km (0.057 R)
• M12: 9,045,435 km (0.089 R)
• M13: 10,361,298 km (0.108 R)
• M14: 13,598,297 km (0.111 R)
• M15: 14,294,974 km (0.118 R)
• M16: 16,077,433 km (0.058 R)
• M17: 19,058,769 km (0.025 R)
• M18: 24,364,257 km (0.093 R)
• M19: 30,778,565 km (0.036 R)
• M20: 32,902,855 km (0.059 R)
• M21: 34,800,205 km (0.068 R)
• M22: 37,329,456 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992.4

Radius: 6.5

Gravity: 23.49 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 11.18 AU - 17.7 AU

Year: 20143 Days

Day: 22.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,312,457 km

• M1: 81,082 km (0.052 R)
• M2: 483,351 km (0.032 R)
• M3: 741,557 km (0.12 R)
• M4: 964,009 km (0.09 R)
• M5: 1,275,621 km (0.106 R)
• M6: 1,513,930 km (0.07 R)
• M7: 1,744,461 km (0.037 R)
• M8: 2,081,505 km (0.117 R)
• M9: 3,660,660 km (0.114 R)
• M10: 4,423,160 km (0.038 R)
• M11: 5,326,731 km (0.103 R)
• M12: 8,493,120 km (0.069 R)
• M13: 10,626,834 km (0.111 R)
• M14: 14,381,591 km (0.107 R)
• M15: 15,918,410 km (0.033 R)
• M16: 18,102,988 km (0.114 R)
• M17: 18,562,702 km (0.089 R)
• M18: 26,542,701 km (0.108 R)
• M19: 29,219,456 km (0.117 R)
• M20: 33,426,298 km (0.114 R)
• M21: 41,410,486 km (0.119 R)
• M22: 43,999,576 km (0.106 R)
• M23: 49,497,747 km (0.111 R)
• M24: 61,213,654 km (0.086 R)
• M25: 61,419,799 km (0.115 R)
• M26: 61,833,288 km (0.071 R)
• M27: 63,295,308 km (0.036 R)
• M28: 71,179,415 km (0.072 R)
• M29: 72,093,757 km (0.071 R)
• M30: 72,553,920 km (0.094 R)
• M31: 74,414,170 km (0.118 R)
• M32: 78,715,408 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.2

Radius: 4.7

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 13.81 AU - 21.83 AU

Year: 27614 Days

Day: 22.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 59,312,457 km

• M1: 59,839 km (0.11 R)
• M2: 381,475 km (0.113 R)
• M3: 1,087,876 km (0.09 R)
• M4: 1,331,571 km (0.082 R)
• M5: 2,055,176 km (0.098 R)
• M6: 2,754,396 km (0.085 R)
• M7: 3,133,477 km (0.048 R)
• M8: 3,284,272 km (0.105 R)
• M9: 3,546,367 km (0.106 R)
• M10: 4,053,354 km (0.062 R)
• M11: 5,457,929 km (0.117 R)
• M12: 6,093,271 km (0.081 R)
• M13: 7,644,451 km (0.114 R)
• M14: 8,486,538 km (0.114 R)
• M15: 10,133,461 km (0.108 R)
• M16: 11,089,690 km (0.052 R)
• M17: 12,540,042 km (0.091 R)
• M18: 12,857,339 km (0.085 R)
• M19: 13,774,374 km (0.063 R)
• M20: 14,874,666 km (0.1 R)
• M21: 15,087,394 km (0.089 R)
• M22: 16,633,338 km (0.118 R)
• M23: 17,405,413 km (0.11 R)
• M24: 20,122,410 km (0.11 R)
• M25: 21,176,626 km (0.083 R)
• M26: 21,445,902 km (0.111 R)
• M27: 31,315,771 km (0.11 R)
• M28: 33,330,555 km (0.075 R)
• M29: 35,682,683 km (0.048 R)
• M30: 45,005,622 km (0.088 R)
• M31: 49,431,176 km (0.114 R)
• M32: 52,646,632 km (0.063 R)
• M33: 58,252,214 km (0.11 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: 283 - 10,622 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit