🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.59 AU - 0.61 AU

Year: 296 Days

Day: 46.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 20.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,337,146 km

• M1: 319,541 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.7

Radius: 12

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.6 AU - 0.78 AU

Year: 364 Days

Day: 5.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,337,146 km

• M1: 149,598 km (0.101 R)
• M2: 539,749 km (0.115 R)
• M3: 1,017,116 km (0.111 R)
• M4: 1,483,113 km (0.111 R)
• M5: 2,074,922 km (0.088 R)
• M6: 2,515,787 km (0.07 R)
• M7: 2,965,927 km (0.094 R)
• M8: 3,541,131 km (0.08 R)
• M9: 4,017,301 km (0.101 R)
• M10: 4,886,465 km (0.107 R)
• M11: 5,446,260 km (0.073 R)

Asteroid Belt

Center: 2.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.5

Radius: 10.8

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.82 AU - 4.08 AU

Year: 4074 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,337,146 km

• M1: 134,937 km (0.088 R)
• M2: 515,813 km (0.109 R)
• M3: 1,127,220 km (0.036 R)
• M4: 1,469,799 km (0.049 R)
• M5: 2,084,048 km (0.045 R)
• M6: 2,578,170 km (0.118 R)
• M7: 3,167,885 km (0.061 R)
• M8: 3,974,965 km (0.105 R)
• M9: 5,654,500 km (0.034 R)
• M10: 6,257,829 km (0.059 R)
• M11: 6,621,501 km (0.037 R)
• M12: 7,391,481 km (0.058 R)
• M13: 8,113,291 km (0.104 R)
• M14: 8,731,429 km (0.096 R)
• M15: 9,147,910 km (0.116 R)
• M16: 10,647,329 km (0.108 R)
• M17: 11,749,267 km (0.103 R)
• M18: 12,925,555 km (0.039 R)
• M19: 14,386,678 km (0.044 R)
• M20: 15,732,011 km (0.086 R)
• M21: 16,693,626 km (0.102 R)
• M22: 17,935,139 km (0.109 R)
• M23: 22,307,735 km (0.114 R)
• M24: 25,690,891 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.1

Radius: 9.1

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.88 AU - 6.1 AU

Year: 9321 Days

Day: 11.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,337,146 km

• M1: 120,127 km (0.107 R)
• M2: 437,574 km (0.041 R)
• M3: 782,098 km (0.106 R)
• M4: 1,122,134 km (0.091 R)
• M5: 1,419,684 km (0.069 R)
• M6: 1,756,129 km (0.105 R)
• M7: 2,112,621 km (0.072 R)
• M8: 2,461,633 km (0.107 R)
• M9: 2,828,746 km (0.087 R)
• M10: 3,530,211 km (0.037 R)
• M11: 4,208,338 km (0.039 R)
• M12: 4,564,680 km (0.116 R)
• M13: 5,275,719 km (0.095 R)
• M14: 6,805,506 km (0.078 R)
• M15: 7,105,600 km (0.057 R)
• M16: 8,698,069 km (0.086 R)
• M17: 9,096,897 km (0.071 R)
• M18: 9,647,716 km (0.109 R)
• M19: 11,913,376 km (0.093 R)
• M20: 12,854,646 km (0.105 R)
• M21: 13,904,673 km (0.063 R)
• M22: 15,073,781 km (0.106 R)
• M23: 17,606,772 km (0.081 R)
• M24: 18,680,436 km (0.093 R)
• M25: 19,645,791 km (0.094 R)
• M26: 22,163,224 km (0.097 R)
• M27: 28,793,252 km (0.106 R)
• M28: 30,788,887 km (0.087 R)
• M29: 38,027,330 km (0.113 R)
• M30: 39,094,711 km (0.047 R)
• M31: 41,538,093 km (0.062 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463.1

Radius: 3.7

Gravity: 33.83 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 5.82 AU - 6.66 AU

Year: 9911 Days

Day: 24 Hours

Environment

Temp: -229 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,337,146 km

• M1: 47,722 km (0.07 R)
• M2: 165,605 km (0.096 R)
• M3: 602,131 km (0.074 R)
• M4: 771,775 km (0.06 R)
• M5: 1,659,040 km (0.071 R)
• M6: 1,776,325 km (0.113 R)
• M7: 1,899,145 km (0.097 R)
• M8: 3,532,006 km (0.077 R)
• M9: 4,841,137 km (0.106 R)
• M10: 5,205,108 km (0.082 R)
• M11: 5,685,467 km (0.081 R)
• M12: 6,159,992 km (0.041 R)
• M13: 7,342,712 km (0.078 R)
• M14: 9,250,534 km (0.078 R)
• M15: 9,434,689 km (0.119 R)
• M16: 10,244,313 km (0.074 R)
• M17: 31,008,497 km (0.106 R)
• M18: 33,754,516 km (0.031 R)
• M19: 34,963,566 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11.1

Radius: 7.7

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.14 AU - 6.74 AU

Year: 10391 Days

Day: 16.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,337,146 km

• M1: 95,892 km (0.1 R)
• M2: 390,750 km (0.097 R)
• M3: 731,384 km (0.086 R)
• M4: 2,480,183 km (0.111 R)
• M5: 3,910,189 km (0.102 R)
• M6: 6,300,165 km (0.029 R)
• M7: 6,585,298 km (0.075 R)
• M8: 11,088,942 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.8

Radius: 5

Gravity: 31.15 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 7.18 AU - 7.46 AU

Year: 12592 Days

Day: 24.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,337,146 km

• M1: 79,736 km (0.033 R)
• M2: 1,883,587 km (0.083 R)
• M3: 2,849,540 km (0.104 R)
• M4: 3,763,882 km (0.101 R)
• M5: 4,107,958 km (0.056 R)
• M6: 5,808,736 km (0.081 R)
• M7: 6,229,106 km (0.04 R)
• M8: 6,426,725 km (0.118 R)
• M9: 8,161,910 km (0.089 R)
• M10: 9,970,698 km (0.113 R)
• M11: 12,275,702 km (0.052 R)
• M12: 14,357,805 km (0.103 R)
• M13: 18,957,341 km (0.104 R)
• M14: 19,122,946 km (0.057 R)
• M15: 20,831,354 km (0.1 R)
• M16: 30,917,392 km (0.05 R)
• M17: 36,103,501 km (0.072 R)
• M18: 39,910,468 km (0.03 R)
• M19: 40,182,437 km (0.072 R)
• M20: 40,455,752 km (0.081 R)
• M21: 56,777,777 km (0.053 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 17,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit