🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810

Radius: 11.1

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.9 AU - 0.96 AU

Year: 579 Days

Day: 9.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,777,880 km

• M1: 138,827 km (0.105 R)
• M2: 509,231 km (0.069 R)
• M3: 926,310 km (0.093 R)
• M4: 1,384,079 km (0.071 R)
• M5: 2,009,399 km (0.028 R)
• M6: 2,408,526 km (0.09 R)
• M7: 2,849,391 km (0.032 R)
• M8: 3,485,930 km (0.097 R)
• M9: 4,111,249 km (0.087 R)
• M10: 4,584,576 km (0.044 R)
• M11: 5,659,138 km (0.106 R)
• M12: 6,014,283 km (0.073 R)
• M13: 7,191,768 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 10

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.86 AU - 1.26 AU

Year: 705 Days

Day: 14.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 115.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,777,880 km

• M1: 126,859 km (0.051 R)
• M2: 755,619 km (0.032 R)
• M3: 1,086,230 km (0.093 R)
• M4: 1,964,818 km (0.118 R)
• M5: 3,050,450 km (0.113 R)
• M6: 4,117,083 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.7

Radius: 10.3

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.89 AU - 1.25 AU

Year: 715 Days

Day: 9.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,777,880 km

• M1: 128,205 km (0.036 R)
• M2: 465,399 km (0.094 R)
• M3: 881,730 km (0.083 R)
• M4: 1,358,199 km (0.105 R)
• M5: 1,808,638 km (0.117 R)
• M6: 2,422,438 km (0.065 R)
• M7: 3,169,979 km (0.091 R)
• M8: 3,641,362 km (0.103 R)
• M9: 4,207,291 km (0.117 R)
• M10: 4,536,855 km (0.038 R)
• M11: 5,514,776 km (0.108 R)
• M12: 6,157,299 km (0.067 R)
• M13: 7,075,530 km (0.09 R)
• M14: 7,448,478 km (0.055 R)
• M15: 8,082,623 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.3

Radius: 10.2

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.02 AU - 1.28 AU

Year: 796 Days

Day: 11.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,777,880 km

• M1: 128,654 km (0.054 R)
• M2: 484,996 km (0.072 R)
• M3: 861,833 km (0.116 R)
• M4: 1,180,327 km (0.06 R)
• M5: 1,586,635 km (0.047 R)
• M6: 2,027,350 km (0.113 R)
• M7: 2,359,308 km (0.108 R)
• M8: 3,068,402 km (0.113 R)
• M9: 3,644,952 km (0.111 R)
• M10: 4,250,524 km (0.095 R)
• M11: 4,968,145 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.4

Radius: 14.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.75 AU - 3.81 AU

Year: 4745 Days

Day: 6.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,777,880 km

• M1: 185,801 km (0.1 R)
• M2: 817,253 km (0.078 R)
• M3: 1,344,735 km (0.083 R)
• M4: 2,363,497 km (0.049 R)
• M5: 3,696,414 km (0.1 R)
• M6: 4,466,992 km (0.101 R)
• M7: 5,513,579 km (0.066 R)
• M8: 7,578,628 km (0.058 R)
• M9: 8,434,029 km (0.033 R)
• M10: 11,773,352 km (0.115 R)
• M11: 13,076,649 km (0.11 R)
• M12: 13,656,341 km (0.079 R)
• M13: 14,754,090 km (0.117 R)
• M14: 16,939,416 km (0.072 R)
• M15: 20,787,671 km (0.097 R)
• M16: 24,149,135 km (0.115 R)
• M17: 25,264,836 km (0.108 R)
• M18: 30,531,130 km (0.027 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.1

Radius: 8.1

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.69 AU - 5.15 AU

Year: 6000 Days

Day: 5.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,777,880 km

• M1: 200,611 km (0.059 R)
• M2: 651,948 km (0.06 R)
• M3: 1,421,180 km (0.103 R)
• M4: 1,941,182 km (0.058 R)
• M5: 2,425,281 km (0.109 R)
• M6: 5,794,973 km (0.105 R)
• M7: 6,371,673 km (0.083 R)
• M8: 7,439,053 km (0.1 R)
• M9: 7,877,225 km (0.109 R)
• M10: 10,248,950 km (0.107 R)
• M11: 16,742,545 km (0.103 R)
• M12: 21,873,453 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.1

Radius: 12.9

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.93 AU - 5.07 AU

Year: 6164 Days

Day: 5.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,777,880 km

• M1: 162,014 km (0.119 R)
• M2: 1,875,957 km (0.111 R)
• M3: 2,687,526 km (0.063 R)
• M4: 3,699,107 km (0.085 R)
• M5: 4,318,143 km (0.108 R)
• M6: 4,867,765 km (0.074 R)
• M7: 5,552,774 km (0.054 R)
• M8: 6,204,123 km (0.066 R)
• M9: 6,906,036 km (0.082 R)
• M10: 8,076,789 km (0.103 R)
• M11: 10,165,175 km (0.117 R)
• M12: 11,480,739 km (0.083 R)
• M13: 15,682,345 km (0.09 R)
• M14: 17,306,230 km (0.12 R)
• M15: 21,402,818 km (0.106 R)
• M16: 27,139,148 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 163.7

Radius: 5.6

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.51 AU - 12.45 AU

Year: 20357 Days

Day: 24.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,777,880 km

• M1: 69,713 km (0.074 R)
• M2: 295,905 km (0.119 R)
• M3: 563,984 km (0.076 R)
• M4: 898,485 km (0.075 R)
• M5: 1,294,470 km (0.059 R)
• M6: 1,707,360 km (0.104 R)
• M7: 3,145,894 km (0.094 R)
• M8: 3,553,997 km (0.093 R)
• M9: 3,996,657 km (0.062 R)
• M10: 5,345,730 km (0.061 R)
• M11: 7,092,136 km (0.101 R)
• M12: 8,050,460 km (0.04 R)
• M13: 8,720,209 km (0.062 R)
• M14: 9,045,136 km (0.105 R)
• M15: 11,275,640 km (0.111 R)
• M16: 14,036,469 km (0.099 R)
• M17: 18,628,974 km (0.114 R)
• M18: 19,323,856 km (0.11 R)
• M19: 21,596,397 km (0.063 R)
• M20: 21,934,937 km (0.088 R)
• M21: 23,059,764 km (0.119 R)
• M22: 26,664,175 km (0.114 R)
• M23: 28,956,762 km (0.082 R)
• M24: 30,947,162 km (0.074 R)
• M25: 31,485,714 km (0.083 R)
• M26: 40,973,510 km (0.086 R)
• M27: 42,015,609 km (0.115 R)
• M28: 42,410,847 km (0.091 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 10,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit