🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.43 AU - 0.59 AU

Year: 239 Days

Day: 43.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.54 AU - 0.58 AU

Year: 275 Days

Day: 29.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 156.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,725,843 km

• M1: 30,967 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.5 AU - 0.7 AU

Year: 305 Days

Day: 21.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.5

Radius: 10

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.87 AU - 0.97 AU

Year: 579 Days

Day: 6.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,725,843 km

• M1: 124,615 km (0.107 R)
• M2: 461,061 km (0.085 R)
• M3: 909,106 km (0.096 R)
• M4: 1,603,091 km (0.045 R)
• M5: 2,388,928 km (0.063 R)
• M6: 2,944,535 km (0.119 R)
• M7: 3,517,944 km (0.12 R)
• M8: 4,253,815 km (0.044 R)
• M9: 5,055,211 km (0.064 R)
• M10: 5,729,150 km (0.042 R)
• M11: 6,562,859 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.7

Radius: 13.7

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.85 AU - 1.17 AU

Year: 666 Days

Day: 9 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,725,843 km

• M1: 170,392 km (0.065 R)
• M2: 798,254 km (0.095 R)
• M3: 1,322,744 km (0.062 R)
• M4: 1,782,010 km (0.114 R)
• M5: 2,230,803 km (0.078 R)
• M6: 2,677,652 km (0.075 R)
• M7: 3,122,556 km (0.076 R)
• M8: 3,770,166 km (0.116 R)
• M9: 4,225,093 km (0.115 R)
• M10: 5,054,314 km (0.116 R)
• M11: 6,028,495 km (0.089 R)
• M12: 7,234,254 km (0.049 R)
• M13: 7,988,825 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.1

Radius: 11.6

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.33 AU - 1.65 AU

Year: 1193 Days

Day: 6.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,725,843 km

• M1: 144,212 km (0.115 R)
• M2: 511,026 km (0.106 R)
• M3: 1,098,497 km (0.116 R)
• M4: 1,583,344 km (0.118 R)
• M5: 1,997,730 km (0.109 R)
• M6: 2,367,386 km (0.115 R)
• M7: 2,887,987 km (0.12 R)
• M8: 3,560,579 km (0.076 R)
• M9: 5,799,012 km (0.111 R)
• M10: 6,376,609 km (0.101 R)
• M11: 7,115,174 km (0.109 R)
• M12: 8,016,651 km (0.096 R)
• M13: 8,509,127 km (0.107 R)
• M14: 8,963,755 km (0.115 R)
• M15: 9,829,178 km (0.049 R)
• M16: 10,266,453 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225

Radius: 14.1

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.4 AU - 5.06 AU

Year: 6748 Days

Day: 14.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,725,843 km

• M1: 175,628 km (0.103 R)
• M2: 640,279 km (0.098 R)
• M3: 1,212,940 km (0.103 R)
• M4: 2,047,546 km (0.073 R)
• M5: 2,555,580 km (0.078 R)
• M6: 4,132,342 km (0.108 R)
• M7: 5,182,669 km (0.042 R)
• M8: 5,996,032 km (0.073 R)
• M9: 6,706,921 km (0.079 R)
• M10: 7,308,903 km (0.101 R)
• M11: 10,209,007 km (0.119 R)
• M12: 11,050,496 km (0.092 R)
• M13: 12,824,427 km (0.07 R)
• M14: 17,103,824 km (0.044 R)
• M15: 18,474,140 km (0.11 R)
• M16: 20,698,361 km (0.107 R)
• M17: 21,840,691 km (0.1 R)
• M18: 24,031,552 km (0.103 R)
• M19: 24,545,869 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.6

Radius: 5.8

Gravity: 27.54 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.7 AU - 9.72 AU

Year: 19849 Days

Day: 20.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 83,725,843 km

• M1: 78,389 km (0.113 R)
• M2: 593,305 km (0.069 R)
• M3: 814,112 km (0.12 R)
• M4: 999,763 km (0.099 R)
• M5: 1,410,858 km (0.059 R)
• M6: 1,593,965 km (0.106 R)
• M7: 2,445,626 km (0.087 R)
• M8: 3,105,801 km (0.112 R)
• M9: 3,447,932 km (0.036 R)
• M10: 3,658,715 km (0.09 R)
• M11: 3,975,115 km (0.069 R)
• M12: 7,593,887 km (0.081 R)
• M13: 9,439,626 km (0.112 R)
• M14: 9,674,793 km (0.1 R)
• M15: 10,403,934 km (0.037 R)
• M16: 10,591,679 km (0.103 R)
• M17: 11,498,392 km (0.043 R)
• M18: 12,385,806 km (0.1 R)
• M19: 12,738,857 km (0.094 R)
• M20: 16,734,018 km (0.11 R)
• M21: 21,796,559 km (0.108 R)
• M22: 22,001,508 km (0.053 R)
• M23: 24,122,208 km (0.053 R)
• M24: 24,451,622 km (0.099 R)
• M25: 24,895,629 km (0.111 R)
• M26: 26,144,173 km (0.045 R)
• M27: 28,398,014 km (0.086 R)
• M28: 31,687,671 km (0.11 R)
• M29: 36,217,345 km (0.119 R)
• M30: 39,313,872 km (0.114 R)
• M31: 46,704,156 km (0.096 R)
• M32: 49,477,102 km (0.074 R)
• M33: 52,725,620 km (0.061 R)
• M34: 58,056,989 km (0.039 R)
• M35: 60,852,674 km (0.069 R)
• M36: 62,903,511 km (0.104 R)
• M37: 63,736,622 km (0.11 R)
• M38: 69,111,075 km (0.102 R)
• M39: 75,246,083 km (0.08 R)
• M40: 77,131,166 km (0.051 R)
• M41: 78,806,363 km (0.09 R)
• M42: 79,531,614 km (0.096 R)
• M43: 81,981,428 km (0.093 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 11,717 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit