🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.46 AU - 0.76 AU

Year: 180 Days

Day: 38.4 Hours

Environment

Temp: 125 °C

Axial Tilt: 15.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.18 AU - 1.54 AU

Year: 601 Days

Day: 43 Hours

Environment

Temp: -49 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.4 AU - 1.42 AU

Year: 634 Days

Day: 34 Hours

Environment

Temp: -33 °C

Axial Tilt: 84.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 31,851,366 km

• M1: 72,106 km (0.029 R)
• M2: 1,250,788 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.7

Radius: 11.9

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.21 AU - 7.23 AU

Year: 5875 Days

Day: 6.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,851,366 km

• M1: 147,952 km (0.112 R)
• M2: 613,950 km (0.102 R)
• M3: 1,076,057 km (0.069 R)
• M4: 1,507,947 km (0.074 R)
• M5: 1,916,947 km (0.115 R)
• M6: 2,400,747 km (0.064 R)
• M7: 2,982,383 km (0.072 R)
• M8: 3,578,830 km (0.118 R)
• M9: 6,104,341 km (0.094 R)
• M10: 6,916,807 km (0.119 R)
• M11: 7,444,439 km (0.072 R)
• M12: 8,615,641 km (0.06 R)
• M13: 9,790,433 km (0.117 R)
• M14: 11,619,416 km (0.087 R)
• M15: 12,774,611 km (0.056 R)
• M16: 18,227,902 km (0.109 R)
• M17: 19,236,491 km (0.104 R)
• M18: 19,970,568 km (0.082 R)
• M19: 21,559,896 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.3

Radius: 10.9

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.12 AU - 8.44 AU

Year: 7440 Days

Day: 14.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,851,366 km

• M1: 135,685 km (0.082 R)
• M2: 682,017 km (0.091 R)
• M3: 1,382,883 km (0.049 R)
• M4: 1,904,082 km (0.094 R)
• M5: 3,191,521 km (0.11 R)
• M6: 4,507,085 km (0.06 R)
• M7: 5,076,604 km (0.083 R)
• M8: 5,693,695 km (0.029 R)
• M9: 6,360,004 km (0.089 R)
• M10: 6,856,669 km (0.077 R)
• M11: 7,494,704 km (0.114 R)
• M12: 8,089,954 km (0.066 R)
• M13: 9,063,836 km (0.1 R)
• M14: 9,925,819 km (0.085 R)
• M15: 10,546,500 km (0.099 R)
• M16: 18,678,491 km (0.119 R)
• M17: 26,255,324 km (0.086 R)
• M18: 27,073,475 km (0.072 R)
• M19: 29,825,327 km (0.061 R)
• M20: 34,026,634 km (0.038 R)
• M21: 34,890,113 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791.5

Radius: 3.5

Gravity: 64.61 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 10.23 AU - 13.51 AU

Year: 15489 Days

Day: 21.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 31,851,366 km

• M1: 43,683 km (0.103 R)
• M2: 224,247 km (0.067 R)
• M3: 340,335 km (0.11 R)
• M4: 640,428 km (0.054 R)
• M5: 750,383 km (0.113 R)
• M6: 1,159,234 km (0.086 R)
• M7: 1,368,073 km (0.084 R)
• M8: 1,860,399 km (0.107 R)
• M9: 2,618,860 km (0.108 R)
• M10: 3,054,041 km (0.111 R)
• M11: 3,235,652 km (0.067 R)
• M12: 3,424,445 km (0.036 R)
• M13: 3,563,720 km (0.083 R)
• M14: 4,128,004 km (0.042 R)
• M15: 4,317,993 km (0.109 R)
• M16: 4,480,606 km (0.047 R)
• M17: 4,681,217 km (0.114 R)
• M18: 5,620,691 km (0.028 R)
• M19: 8,404,558 km (0.111 R)
• M20: 10,463,773 km (0.099 R)
• M21: 11,797,737 km (0.095 R)
• M22: 17,273,169 km (0.026 R)
• M23: 21,483,152 km (0.057 R)
• M24: 23,223,274 km (0.025 R)
• M25: 28,318,428 km (0.062 R)
• M26: 31,004,009 km (0.108 R)
• M27: 33,220,601 km (0.095 R)
• M28: 38,103,924 km (0.048 R)
• M29: 40,643,498 km (0.09 R)
• M30: 41,222,890 km (0.105 R)
• M31: 43,293,773 km (0.072 R)
• M32: 43,595,213 km (0.065 R)
• M33: 44,354,721 km (0.095 R)
• M34: 46,686,503 km (0.095 R)
• M35: 56,112,815 km (0.107 R)
• M36: 56,650,769 km (0.109 R)
• M37: 63,571,166 km (0.083 R)
• M38: 65,335,823 km (0.103 R)
• M39: 67,334,301 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.3

Radius: 6.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 14.5 AU - 14.64 AU

Year: 21064 Days

Day: 25 Hours

Environment

Temp: -196 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,851,366 km

• M1: 79,885 km (0.092 R)
• M2: 683,064 km (0.115 R)
• M3: 1,149,061 km (0.086 R)
• M4: 1,440,627 km (0.075 R)
• M5: 3,231,912 km (0.106 R)
• M6: 3,908,693 km (0.102 R)
• M7: 6,737,439 km (0.052 R)
• M8: 8,564,628 km (0.088 R)
• M9: 10,929,920 km (0.066 R)
• M10: 12,286,772 km (0.038 R)
• M11: 12,953,530 km (0.071 R)
• M12: 13,216,224 km (0.076 R)
• M13: 13,482,658 km (0.094 R)
• M14: 14,640,396 km (0.098 R)
• M15: 16,839,036 km (0.116 R)
• M16: 17,469,142 km (0.113 R)
• M17: 18,443,473 km (0.099 R)
• M18: 19,385,042 km (0.079 R)
• M19: 21,804,638 km (0.038 R)
• M20: 24,900,416 km (0.085 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 16,550 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit