🌌 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: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.47 AU - 0.55 AU

Year: 235 Days

Day: 35.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,624,695 km

• M1: 152,590 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 26.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,624,695 km

• M1: 44,580 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.8

Radius: 11.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.68 AU - 0.72 AU

Year: 378 Days

Day: 7.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,624,695 km

• M1: 144,212 km (0.096 R)
• M2: 535,261 km (0.107 R)
• M3: 981,362 km (0.045 R)
• M4: 1,367,773 km (0.064 R)
• M5: 1,836,613 km (0.043 R)
• M6: 2,596,421 km (0.069 R)
• M7: 3,668,738 km (0.1 R)
• M8: 4,299,293 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679

Radius: 11.2

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.81 AU - 0.85 AU

Year: 488 Days

Day: 10.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,624,695 km

• M1: 139,276 km (0.105 R)
• M2: 501,302 km (0.029 R)
• M3: 929,302 km (0.084 R)
• M4: 1,642,136 km (0.082 R)
• M5: 2,253,842 km (0.083 R)
• M6: 2,608,837 km (0.115 R)
• M7: 3,324,813 km (0.032 R)
• M8: 3,867,255 km (0.117 R)
• M9: 4,526,981 km (0.117 R)
• M10: 4,970,539 km (0.081 R)
• M11: 5,544,546 km (0.104 R)
• M12: 5,927,516 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.7

Radius: 8.7

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.01 AU - 1.29 AU

Year: 796 Days

Day: 7.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,624,695 km

• M1: 109,506 km (0.055 R)
• M2: 437,873 km (0.105 R)
• M3: 732,880 km (0.094 R)
• M4: 2,167,374 km (0.061 R)
• M5: 2,734,948 km (0.109 R)
• M6: 4,109,454 km (0.077 R)
• M7: 5,912,706 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.7

Radius: 14.1

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.06 AU - 2.6 AU

Year: 2296 Days

Day: 7.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,624,695 km

• M1: 175,628 km (0.107 R)
• M2: 686,355 km (0.037 R)
• M3: 1,163,423 km (0.093 R)
• M4: 2,964,731 km (0.058 R)
• M5: 3,645,102 km (0.117 R)
• M6: 4,344,921 km (0.106 R)
• M7: 5,018,111 km (0.111 R)
• M8: 5,785,099 km (0.032 R)
• M9: 6,465,022 km (0.084 R)
• M10: 8,302,831 km (0.064 R)
• M11: 8,964,204 km (0.098 R)
• M12: 10,058,662 km (0.074 R)
• M13: 11,479,542 km (0.093 R)
• M14: 12,217,509 km (0.103 R)
• M15: 13,383,474 km (0.092 R)
• M16: 14,108,725 km (0.1 R)
• M17: 15,440,894 km (0.086 R)
• M18: 15,986,627 km (0.099 R)
• M19: 17,064,330 km (0.109 R)
• M20: 18,575,867 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.6

Radius: 13.8

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.96 AU - 2.8 AU

Year: 2371 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,624,695 km

• M1: 171,589 km (0.05 R)
• M2: 649,255 km (0.116 R)
• M3: 1,530,386 km (0.083 R)
• M4: 1,994,439 km (0.111 R)
• M5: 2,925,835 km (0.081 R)
• M6: 3,404,100 km (0.105 R)
• M7: 3,992,618 km (0.064 R)
• M8: 4,499,306 km (0.117 R)
• M9: 5,593,764 km (0.12 R)
• M10: 6,151,614 km (0.078 R)
• M11: 7,409,134 km (0.078 R)
• M12: 8,370,898 km (0.109 R)
• M13: 10,656,604 km (0.087 R)
• M14: 11,396,815 km (0.051 R)
• M15: 11,881,960 km (0.092 R)
• M16: 12,465,243 km (0.1 R)
• M17: 13,111,356 km (0.068 R)
• M18: 14,284,353 km (0.101 R)
• M19: 15,526,015 km (0.103 R)
• M20: 16,376,030 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.6

Radius: 10

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.52 AU - 5.3 AU

Year: 5980 Days

Day: 11.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,624,695 km

• M1: 125,513 km (0.115 R)
• M2: 458,218 km (0.092 R)
• M3: 1,136,495 km (0.117 R)
• M4: 1,766,003 km (0.086 R)
• M5: 2,146,580 km (0.083 R)
• M6: 2,549,896 km (0.056 R)
• M7: 3,259,588 km (0.054 R)
• M8: 4,458,765 km (0.05 R)
• M9: 5,596,456 km (0.061 R)
• M10: 6,456,046 km (0.102 R)
• M11: 7,701,897 km (0.075 R)
• M12: 8,690,739 km (0.025 R)
• M13: 9,369,614 km (0.106 R)
• M14: 11,441,844 km (0.058 R)
• M15: 14,106,182 km (0.108 R)
• M16: 14,622,145 km (0.088 R)
• M17: 15,257,636 km (0.116 R)
• M18: 17,569,073 km (0.106 R)
• M19: 19,465,077 km (0.106 R)
• M20: 20,169,533 km (0.055 R)
• M21: 20,495,207 km (0.118 R)
• M22: 20,957,166 km (0.083 R)
• M23: 21,561,242 km (0.066 R)
• M24: 24,387,894 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 856.9

Radius: 6.9

Gravity: 18 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.6 AU - 10.28 AU

Year: 20235 Days

Day: 15.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 82,624,695 km

• M1: 87,964 km (0.112 R)
• M2: 381,475 km (0.081 R)
• M3: 651,948 km (0.088 R)
• M4: 1,025,942 km (0.072 R)
• M5: 1,728,603 km (0.09 R)
• M6: 4,232,872 km (0.063 R)
• M7: 4,832,759 km (0.069 R)
• M8: 5,774,478 km (0.104 R)
• M9: 6,511,846 km (0.105 R)
• M10: 6,833,032 km (0.101 R)
• M11: 7,457,753 km (0.067 R)
• M12: 7,758,594 km (0.084 R)
• M13: 8,119,873 km (0.107 R)
• M14: 9,157,035 km (0.114 R)
• M15: 9,502,158 km (0.027 R)
• M16: 9,975,934 km (0.115 R)
• M17: 11,228,966 km (0.115 R)
• M18: 13,010,676 km (0.06 R)
• M19: 15,371,480 km (0.091 R)
• M20: 18,183,023 km (0.08 R)
• M21: 21,020,595 km (0.043 R)
• M22: 24,140,459 km (0.093 R)
• M23: 25,021,740 km (0.115 R)
• M24: 25,245,389 km (0.09 R)
• M25: 28,034,192 km (0.062 R)
• M26: 30,382,729 km (0.059 R)
• M27: 31,409,569 km (0.115 R)
• M28: 37,183,299 km (0.116 R)
• M29: 38,357,792 km (0.11 R)
• M30: 44,276,033 km (0.076 R)
• M31: 51,493,981 km (0.095 R)
• M32: 59,061,239 km (0.058 R)
• M33: 63,731,086 km (0.099 R)
• M34: 66,476,507 km (0.036 R)
• M35: 68,641,337 km (0.097 R)
• M36: 69,079,809 km (0.039 R)
• M37: 73,110,873 km (0.081 R)
• M38: 74,488,669 km (0.059 R)
• M39: 76,823,443 km (0.103 R)
• M40: 80,416,186 km (0.085 R)
• M41: 82,624,699 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 243 - 13,900 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit