🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.69 AU - 0.77 AU

Year: 221 Days

Day: 46.6 Hours

Environment

Temp: 170 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 82,748,285 km

• M1: 61,485 km (0.099 R)
• M2: 188,942 km (0.047 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.37 AU - 4.41 AU

Year: 2722 Days

Day: 35.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.2

Radius: 12.7

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.99 AU - 8.21 AU

Year: 8178 Days

Day: 13.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,748,285 km

• M1: 158,723 km (0.077 R)
• M2: 737,218 km (0.076 R)
• M3: 1,144,424 km (0.089 R)
• M4: 2,096,614 km (0.099 R)
• M5: 2,563,659 km (0.072 R)
• M6: 4,214,322 km (0.106 R)
• M7: 4,849,365 km (0.093 R)
• M8: 6,004,559 km (0.06 R)
• M9: 6,522,168 km (0.108 R)
• M10: 7,568,455 km (0.074 R)
• M11: 11,537,736 km (0.074 R)
• M12: 12,285,426 km (0.083 R)
• M13: 13,996,526 km (0.099 R)
• M14: 20,155,321 km (0.067 R)
• M15: 22,282,154 km (0.11 R)
• M16: 29,457,616 km (0.086 R)
• M17: 35,866,239 km (0.107 R)
• M18: 40,295,832 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 14.4

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.32 AU - 10.12 AU

Year: 8361 Days

Day: 10.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,748,285 km

• M1: 179,368 km (0.088 R)
• M2: 636,689 km (0.086 R)
• M3: 1,156,242 km (0.117 R)
• M4: 1,606,831 km (0.084 R)
• M5: 2,178,295 km (0.115 R)
• M6: 3,338,576 km (0.078 R)
• M7: 3,865,459 km (0.107 R)
• M8: 6,702,733 km (0.116 R)
• M9: 7,627,846 km (0.111 R)
• M10: 8,505,836 km (0.04 R)
• M11: 9,127,864 km (0.112 R)
• M12: 10,166,671 km (0.112 R)
• M13: 11,074,132 km (0.119 R)
• M14: 12,479,604 km (0.078 R)
• M15: 14,806,449 km (0.047 R)
• M16: 17,907,314 km (0.076 R)
• M17: 20,226,679 km (0.069 R)
• M18: 20,935,923 km (0.106 R)
• M19: 25,546,080 km (0.118 R)
• M20: 26,189,351 km (0.072 R)
• M21: 30,792,777 km (0.077 R)
• M22: 36,833,389 km (0.112 R)
• M23: 38,488,540 km (0.09 R)
• M24: 38,970,395 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.8

Radius: 8.6

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.43 AU - 10.37 AU

Year: 10224 Days

Day: 8.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,748,285 km

• M1: 107,262 km (0.1 R)
• M2: 531,372 km (0.105 R)
• M3: 837,000 km (0.076 R)
• M4: 1,506,750 km (0.095 R)
• M5: 1,797,867 km (0.073 R)
• M6: 2,245,314 km (0.086 R)
• M7: 2,765,466 km (0.104 R)
• M8: 3,295,791 km (0.033 R)
• M9: 4,758,559 km (0.074 R)
• M10: 6,049,439 km (0.116 R)
• M11: 6,361,500 km (0.098 R)
• M12: 6,720,834 km (0.081 R)
• M13: 7,441,148 km (0.111 R)
• M14: 9,260,108 km (0.11 R)
• M15: 9,816,612 km (0.091 R)
• M16: 11,253,500 km (0.038 R)
• M17: 12,939,169 km (0.107 R)
• M18: 14,724,470 km (0.12 R)
• M19: 16,533,557 km (0.095 R)
• M20: 24,464,787 km (0.074 R)
• M21: 26,528,340 km (0.07 R)
• M22: 28,900,214 km (0.103 R)
• M23: 29,787,629 km (0.115 R)
• M24: 32,558,929 km (0.076 R)
• M25: 35,051,379 km (0.101 R)
• M26: 36,400,902 km (0.076 R)
• M27: 36,743,780 km (0.093 R)
• M28: 37,668,295 km (0.03 R)
• M29: 38,253,971 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.9

Radius: 7.3

Gravity: 16.92 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 10.01 AU - 16.65 AU

Year: 17266 Days

Day: 21.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,748,285 km

• M1: 94,247 km (0.061 R)
• M2: 668,104 km (0.096 R)
• M3: 1,108,819 km (0.056 R)
• M4: 2,275,832 km (0.098 R)
• M5: 8,184,350 km (0.051 R)
• M6: 9,417,784 km (0.12 R)
• M7: 11,018,631 km (0.08 R)
• M8: 12,586,866 km (0.06 R)
• M9: 14,224,065 km (0.051 R)
• M10: 16,402,808 km (0.114 R)
• M11: 19,887,691 km (0.106 R)
• M12: 20,830,157 km (0.119 R)
• M13: 21,802,244 km (0.1 R)
• M14: 24,151,978 km (0.067 R)
• M15: 26,665,521 km (0.103 R)
• M16: 39,339,453 km (0.089 R)
• M17: 50,164,056 km (0.118 R)
• M18: 59,666,812 km (0.057 R)
• M19: 61,819,974 km (0.101 R)
• M20: 63,216,919 km (0.062 R)
• M21: 66,905,105 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.1

Radius: 4.5

Gravity: 19.12 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 17.52 AU - 21.16 AU

Year: 30173 Days

Day: 19.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,748,285 km

• M1: 56,099 km (0.083 R)
• M2: 229,334 km (0.1 R)
• M3: 623,075 km (0.086 R)
• M4: 778,807 km (0.098 R)
• M5: 1,459,626 km (0.085 R)
• M6: 2,072,678 km (0.108 R)
• M7: 2,310,988 km (0.091 R)
• M8: 2,690,069 km (0.098 R)
• M9: 3,277,540 km (0.092 R)
• M10: 4,177,072 km (0.067 R)
• M11: 4,886,166 km (0.089 R)
• M12: 5,755,180 km (0.11 R)
• M13: 6,138,749 km (0.077 R)
• M14: 10,769,102 km (0.119 R)
• M15: 11,154,765 km (0.032 R)
• M16: 11,351,038 km (0.066 R)
• M17: 11,817,783 km (0.081 R)
• M18: 12,647,752 km (0.075 R)
• M19: 16,273,855 km (0.1 R)
• M20: 16,611,048 km (0.092 R)
• M21: 22,975,540 km (0.112 R)
• M22: 25,600,983 km (0.071 R)
• M23: 27,458,091 km (0.107 R)
• M24: 34,248,637 km (0.082 R)
• M25: 38,996,724 km (0.097 R)
• M26: 44,985,875 km (0.088 R)
• M27: 50,303,630 km (0.115 R)
• M28: 60,741,373 km (0.076 R)
• M29: 63,611,259 km (0.097 R)
• M30: 68,738,875 km (0.115 R)
• M31: 75,061,180 km (0.117 R)
• M32: 76,229,390 km (0.052 R)
• M33: 81,023,852 km (0.115 R)
• M34: 82,253,098 km (0.037 R)

Kuiper Belt

Range: 30.9 - 53.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 16,282 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit