🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.69 AU - 0.97 AU

Year: 270 Days

Day: 23.7 Hours

Environment

Temp: 117 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 114,936,908 km

• M1: 395,686 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.93 AU - 1.41 AU

Year: 451 Days

Day: 42.5 Hours

Environment

Temp: 20 °C

Axial Tilt: 0.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 114,936,908 km

• M1: 52,958 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.14 AU - 1.58 AU

Year: 565 Days

Day: 18 Hours

Environment

Temp: -7 °C

Axial Tilt: 44.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.92 AU - 2.28 AU

Year: 1085 Days

Day: 48 Hours

Environment

Temp: -56 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 114,936,908 km

• M1: 1,828,385 km (0.113 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.54 AU - 2.88 AU

Year: 1590 Days

Day: 34.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 114,936,908 km

• M1: 96,640 km (0.073 R)

Asteroid Belt

Center: 4.05 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701

Radius: 10.1

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.21 AU - 6.55 AU

Year: 4448 Days

Day: 5.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 114,936,908 km

• M1: 125,961 km (0.115 R)
• M2: 484,697 km (0.114 R)
• M3: 1,276,219 km (0.111 R)
• M4: 2,611,530 km (0.102 R)
• M5: 3,243,880 km (0.115 R)
• M6: 3,670,384 km (0.118 R)
• M7: 4,890,055 km (0.118 R)
• M8: 5,564,592 km (0.097 R)
• M9: 6,208,461 km (0.092 R)
• M10: 7,856,431 km (0.104 R)
• M11: 12,818,593 km (0.066 R)
• M12: 13,219,365 km (0.081 R)
• M13: 17,032,017 km (0.118 R)
• M14: 23,399,201 km (0.117 R)
• M15: 27,562,061 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 11.5

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.93 AU - 7.89 AU

Year: 5785 Days

Day: 5.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 114,936,908 km

• M1: 144,811 km (0.113 R)
• M2: 535,112 km (0.082 R)
• M3: 921,523 km (0.072 R)
• M4: 1,493,735 km (0.073 R)
• M5: 2,421,840 km (0.054 R)
• M6: 5,708,505 km (0.067 R)
• M7: 6,194,249 km (0.118 R)
• M8: 8,858,139 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.6

Radius: 12.8

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 6.14 AU - 7.56 AU

Year: 6390 Days

Day: 6.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 77.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 114,936,908 km

• M1: 159,172 km (0.12 R)
• M2: 731,534 km (0.1 R)
• M3: 1,356,553 km (0.067 R)
• M4: 2,385,787 km (0.109 R)
• M5: 4,116,784 km (0.049 R)
• M6: 5,741,566 km (0.099 R)
• M7: 6,443,629 km (0.113 R)
• M8: 9,639,040 km (0.045 R)
• M9: 11,025,961 km (0.027 R)
• M10: 12,267,025 km (0.074 R)
• M11: 13,267,835 km (0.042 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.2

Radius: 4.7

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 17.35 AU - 21.29 AU

Year: 30270 Days

Day: 20.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 114,936,908 km

• M1: 58,493 km (0.09 R)
• M2: 241,601 km (0.076 R)
• M3: 520,451 km (0.048 R)
• M4: 1,816,268 km (0.099 R)
• M5: 2,243,220 km (0.063 R)
• M6: 2,849,839 km (0.097 R)
• M7: 3,191,222 km (0.117 R)
• M8: 4,411,641 km (0.109 R)
• M9: 4,801,344 km (0.063 R)
• M10: 6,266,655 km (0.082 R)
• M11: 6,427,921 km (0.106 R)
• M12: 7,014,195 km (0.102 R)
• M13: 8,006,478 km (0.025 R)
• M14: 8,585,571 km (0.089 R)
• M15: 9,452,940 km (0.094 R)
• M16: 9,826,486 km (0.066 R)
• M17: 11,843,663 km (0.09 R)
• M18: 15,180,594 km (0.085 R)
• M19: 17,140,924 km (0.119 R)
• M20: 19,950,522 km (0.098 R)
• M21: 22,577,460 km (0.083 R)
• M22: 25,940,271 km (0.106 R)
• M23: 26,566,487 km (0.098 R)
• M24: 33,637,680 km (0.119 R)
• M25: 37,469,479 km (0.104 R)
• M26: 38,808,530 km (0.108 R)
• M27: 39,353,066 km (0.114 R)
• M28: 40,596,823 km (0.063 R)
• M29: 41,017,043 km (0.092 R)
• M30: 41,724,043 km (0.104 R)
• M31: 45,231,066 km (0.101 R)
• M32: 45,833,945 km (0.091 R)
• M33: 47,519,764 km (0.089 R)
• M34: 57,271,450 km (0.107 R)
• M35: 57,800,129 km (0.063 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.7

Radius: 3.5

Gravity: 80.47 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 15.88 AU - 23.34 AU

Year: 30954 Days

Day: 16.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 114,936,908 km

• M1: 43,683 km (0.103 R)
• M2: 242,049 km (0.083 R)
• M3: 479,760 km (0.111 R)
• M4: 856,747 km (0.093 R)
• M5: 1,283,699 km (0.077 R)
• M6: 1,904,082 km (0.104 R)
• M7: 2,565,603 km (0.082 R)
• M8: 3,433,271 km (0.076 R)
• M9: 8,374,638 km (0.119 R)
• M10: 11,373,328 km (0.054 R)
• M11: 11,820,476 km (0.071 R)
• M12: 12,201,950 km (0.043 R)
• M13: 12,434,725 km (0.078 R)
• M14: 13,150,999 km (0.117 R)
• M15: 16,764,087 km (0.113 R)
• M16: 17,538,705 km (0.102 R)
• M17: 18,951,208 km (0.119 R)
• M18: 19,158,850 km (0.057 R)
• M19: 22,693,249 km (0.071 R)
• M20: 23,282,066 km (0.106 R)
• M21: 26,508,743 km (0.06 R)
• M22: 29,046,820 km (0.097 R)
• M23: 31,161,236 km (0.118 R)
• M24: 35,535,927 km (0.094 R)
• M25: 37,134,380 km (0.082 R)
• M26: 39,960,882 km (0.08 R)
• M27: 41,688,588 km (0.102 R)
• M28: 42,393,493 km (0.108 R)
• M29: 43,465,512 km (0.077 R)
• M30: 44,190,164 km (0.11 R)
• M31: 48,320,561 km (0.097 R)
• M32: 57,555,238 km (0.049 R)
• M33: 57,772,902 km (0.085 R)
• M34: 59,089,813 km (0.051 R)
• M35: 70,851,796 km (0.06 R)
• M36: 73,633,119 km (0.064 R)
• M37: 86,054,230 km (0.115 R)
• M38: 93,957,486 km (0.069 R)
• M39: 95,472,164 km (0.112 R)
• M40: 103,290,448 km (0.071 R)
• M41: 112,540,982 km (0.109 R)

Kuiper Belt

Range: 30.8 - 51.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 20,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit