🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.5 AU - 0.6 AU

Year: 263 Days

Day: 44.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.4

Radius: 9.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.76 AU - 1.08 AU

Year: 570 Days

Day: 6.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 14,384,216 km

• M1: 120,127 km (0.088 R)
• M2: 438,621 km (0.098 R)
• M3: 756,516 km (0.115 R)
• M4: 1,463,815 km (0.119 R)
• M5: 1,897,200 km (0.11 R)
• M6: 2,656,110 km (0.116 R)
• M7: 3,690,729 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.4

Radius: 11.2

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.27 AU - 3.69 AU

Year: 3322 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 14,384,216 km

• M1: 139,724 km (0.078 R)
• M2: 503,397 km (0.098 R)
• M3: 917,035 km (0.119 R)
• M4: 1,324,689 km (0.101 R)
• M5: 1,910,365 km (0.102 R)
• M6: 2,296,477 km (0.102 R)
• M7: 2,838,171 km (0.088 R)
• M8: 3,620,568 km (0.039 R)
• M9: 4,024,632 km (0.09 R)
• M10: 4,687,799 km (0.051 R)
• M11: 5,124,026 km (0.094 R)
• M12: 5,516,272 km (0.028 R)
• M13: 6,361,201 km (0.101 R)
• M14: 6,924,885 km (0.055 R)
• M15: 7,639,066 km (0.058 R)
• M16: 9,147,461 km (0.104 R)
• M17: 9,831,422 km (0.108 R)
• M18: 10,808,297 km (0.071 R)
• M19: 13,817,607 km (0.08 R)
• M20: 15,609,640 km (0.074 R)
• M21: 16,988,334 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.4

Radius: 10.8

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.49 AU - 3.67 AU

Year: 4374 Days

Day: 9.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 14,384,216 km

• M1: 138,528 km (0.079 R)
• M2: 535,860 km (0.092 R)
• M3: 878,289 km (0.095 R)
• M4: 2,068,340 km (0.072 R)
• M5: 2,511,898 km (0.106 R)
• M6: 4,778,006 km (0.109 R)
• M7: 5,253,428 km (0.09 R)
• M8: 6,237,932 km (0.107 R)
• M9: 7,070,743 km (0.119 R)
• M10: 7,654,175 km (0.077 R)
• M11: 9,394,896 km (0.065 R)
• M12: 11,758,542 km (0.061 R)
• M13: 17,319,394 km (0.03 R)
• M14: 18,443,921 km (0.107 R)
• M15: 20,562,227 km (0.111 R)
• M16: 21,256,212 km (0.076 R)
• M17: 22,985,414 km (0.1 R)
• M18: 23,960,343 km (0.085 R)
• M19: 24,806,618 km (0.094 R)
• M20: 27,799,922 km (0.067 R)
• M21: 28,222,087 km (0.116 R)

Asteroid Belt

Center: 4.26 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.9

Radius: 11.4

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.63 AU - 5.23 AU

Year: 7068 Days

Day: 5.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 14,384,216 km

• M1: 143,614 km (0.032 R)
• M2: 507,735 km (0.081 R)
• M3: 1,119,590 km (0.075 R)
• M4: 1,595,611 km (0.059 R)
• M5: 2,341,655 km (0.095 R)
• M6: 3,133,327 km (0.093 R)
• M7: 3,580,176 km (0.062 R)
• M8: 4,095,242 km (0.116 R)
• M9: 4,800,895 km (0.077 R)
• M10: 5,428,757 km (0.11 R)
• M11: 8,004,533 km (0.071 R)
• M12: 9,558,556 km (0.1 R)
• M13: 10,651,518 km (0.096 R)
• M14: 11,931,777 km (0.07 R)
• M15: 13,197,973 km (0.081 R)
• M16: 17,533,319 km (0.103 R)
• M17: 22,005,099 km (0.094 R)
• M18: 26,179,478 km (0.102 R)
• M19: 26,999,723 km (0.099 R)
• M20: 29,563,531 km (0.045 R)
• M21: 34,082,584 km (0.098 R)
• M22: 35,945,526 km (0.113 R)
• M23: 39,278,567 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.5

Radius: 13.5

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.41 AU - 5.73 AU

Year: 7371 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 14,384,216 km

• M1: 168,148 km (0.105 R)
• M2: 958,025 km (0.113 R)
• M3: 1,683,574 km (0.088 R)
• M4: 2,163,933 km (0.084 R)
• M5: 3,809,510 km (0.095 R)
• M6: 4,348,511 km (0.085 R)
• M7: 5,026,638 km (0.064 R)
• M8: 6,631,374 km (0.114 R)
• M9: 8,135,282 km (0.101 R)
• M10: 10,093,219 km (0.089 R)
• M11: 11,080,116 km (0.115 R)
• M12: 14,307,540 km (0.102 R)
• M13: 14,797,174 km (0.073 R)
• M14: 16,070,402 km (0.119 R)
• M15: 17,623,527 km (0.067 R)
• M16: 20,482,641 km (0.072 R)
• M17: 20,948,489 km (0.096 R)
• M18: 21,500,804 km (0.064 R)
• M19: 23,893,473 km (0.083 R)
• M20: 27,197,641 km (0.095 R)
• M21: 27,950,118 km (0.054 R)
• M22: 28,813,298 km (0.063 R)
• M23: 30,794,871 km (0.106 R)
• M24: 33,719,809 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.4

Radius: 6.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 6.48 AU - 8.58 AU

Year: 13342 Days

Day: 17.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,384,216 km

• M1: 154,983 km (0.084 R)
• M2: 416,480 km (0.094 R)
• M3: 3,776,000 km (0.04 R)
• M4: 4,537,004 km (0.1 R)
• M5: 4,860,136 km (0.073 R)
• M6: 6,584,101 km (0.077 R)
• M7: 8,111,346 km (0.115 R)
• M8: 9,145,965 km (0.076 R)
• M9: 10,894,465 km (0.083 R)
• M10: 11,145,640 km (0.11 R)
• M11: 13,256,466 km (0.068 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 15,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit