🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.42 AU - 0.6 AU

Year: 135 Days

Day: 25.4 Hours

Environment

Temp: 216 °C

Axial Tilt: 10.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.88 AU - 1.18 AU

Year: 388 Days

Day: 32.7 Hours

Environment

Temp: 30 °C

Axial Tilt: 40 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.63 AU - 2.51 AU

Year: 1104 Days

Day: 23.5 Hours

Environment

Temp: -85 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,038,306 km

• M1: 170,691 km (0.062 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.78 AU - 2.54 AU

Year: 1177 Days

Day: 20 Hours

Environment

Temp: -74 °C

Axial Tilt: 109.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,038,306 km

• M1: 167,250 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.09 AU - 4.91 AU

Year: 2967 Days

Day: 47.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.77 AU - 5.29 AU

Year: 3576 Days

Day: 27.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,038,306 km

• M1: 563,386 km (0.111 R)

Asteroid Belt

Center: 4.97 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.9

Radius: 10.5

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.86 AU - 5.96 AU

Year: 4667 Days

Day: 10.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,038,306 km

• M1: 131,646 km (0.116 R)
• M2: 506,688 km (0.108 R)
• M3: 1,088,325 km (0.114 R)
• M4: 1,655,300 km (0.078 R)
• M5: 2,001,171 km (0.057 R)
• M6: 2,425,879 km (0.031 R)
• M7: 3,014,846 km (0.094 R)
• M8: 3,556,689 km (0.049 R)
• M9: 3,903,906 km (0.102 R)
• M10: 4,318,741 km (0.084 R)
• M11: 5,186,109 km (0.112 R)
• M12: 5,661,382 km (0.072 R)
• M13: 6,669,073 km (0.061 R)
• M14: 8,416,975 km (0.11 R)
• M15: 9,609,718 km (0.116 R)
• M16: 11,039,575 km (0.057 R)
• M17: 15,521,377 km (0.09 R)
• M18: 16,963,351 km (0.087 R)
• M19: 18,072,171 km (0.119 R)
• M20: 21,891,404 km (0.113 R)
• M21: 22,300,704 km (0.11 R)
• M22: 23,346,393 km (0.055 R)
• M23: 24,351,392 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.3

Radius: 9.9

Gravity: 10.07 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.47 AU - 7.61 AU

Year: 6927 Days

Day: 11.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,038,306 km

• M1: 129,402 km (0.078 R)
• M2: 503,546 km (0.096 R)
• M3: 1,287,290 km (0.09 R)
• M4: 2,030,043 km (0.072 R)
• M5: 2,767,710 km (0.108 R)
• M6: 3,276,941 km (0.074 R)
• M7: 4,345,519 km (0.066 R)
• M8: 4,739,261 km (0.036 R)
• M9: 6,631,823 km (0.099 R)
• M10: 7,950,678 km (0.086 R)
• M11: 9,161,673 km (0.098 R)
• M12: 9,669,707 km (0.069 R)
• M13: 10,491,747 km (0.081 R)
• M14: 12,835,348 km (0.07 R)
• M15: 14,373,513 km (0.099 R)
• M16: 14,870,627 km (0.11 R)
• M17: 16,363,763 km (0.051 R)
• M18: 24,378,170 km (0.081 R)
• M19: 38,460,715 km (0.11 R)
• M20: 39,540,064 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.2

Radius: 9

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.67 AU - 8.71 AU

Year: 7908 Days

Day: 5.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,038,306 km

• M1: 111,899 km (0.044 R)
• M2: 452,982 km (0.111 R)
• M3: 738,714 km (0.109 R)
• M4: 1,162,226 km (0.062 R)
• M5: 1,847,085 km (0.1 R)
• M6: 2,450,712 km (0.103 R)
• M7: 2,738,838 km (0.11 R)
• M8: 3,202,591 km (0.103 R)
• M9: 5,065,384 km (0.116 R)
• M10: 5,407,963 km (0.107 R)
• M11: 8,910,498 km (0.102 R)
• M12: 11,817,484 km (0.071 R)
• M13: 13,872,061 km (0.115 R)
• M14: 16,489,724 km (0.118 R)
• M15: 16,829,910 km (0.087 R)
• M16: 18,455,889 km (0.097 R)
• M17: 21,690,644 km (0.099 R)
• M18: 22,347,080 km (0.086 R)
• M19: 24,483,636 km (0.102 R)
• M20: 24,837,734 km (0.09 R)
• M21: 29,958,170 km (0.052 R)
• M22: 34,507,292 km (0.053 R)
• M23: 35,176,593 km (0.059 R)
• M24: 36,311,293 km (0.06 R)
• M25: 40,598,618 km (0.078 R)
• M26: 41,972,974 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993.3

Radius: 6.7

Gravity: 22.13 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 10.41 AU - 15.79 AU

Year: 17584 Days

Day: 16.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 79,038,306 km

• M1: 85,720 km (0.072 R)
• M2: 425,307 km (0.118 R)
• M3: 686,953 km (0.032 R)
• M4: 1,019,061 km (0.085 R)
• M5: 1,244,505 km (0.073 R)
• M6: 1,930,411 km (0.083 R)
• M7: 3,269,461 km (0.103 R)
• M8: 3,767,024 km (0.115 R)
• M9: 4,912,495 km (0.114 R)
• M10: 6,273,536 km (0.094 R)
• M11: 7,422,897 km (0.05 R)
• M12: 8,438,666 km (0.096 R)
• M13: 8,924,710 km (0.082 R)
• M14: 10,312,230 km (0.09 R)
• M15: 11,508,415 km (0.117 R)
• M16: 13,727,400 km (0.109 R)
• M17: 14,399,543 km (0.072 R)
• M18: 16,298,987 km (0.106 R)
• M19: 21,171,390 km (0.025 R)
• M20: 25,019,047 km (0.097 R)
• M21: 28,222,985 km (0.079 R)
• M22: 29,553,059 km (0.113 R)
• M23: 30,047,032 km (0.074 R)
• M24: 31,561,710 km (0.108 R)
• M25: 35,292,830 km (0.04 R)
• M26: 39,159,187 km (0.103 R)
• M27: 46,880,233 km (0.101 R)
• M28: 47,890,168 km (0.056 R)
• M29: 48,230,054 km (0.111 R)
• M30: 52,254,835 km (0.097 R)
• M31: 52,795,781 km (0.108 R)
• M32: 58,219,003 km (0.111 R)
• M33: 64,621,194 km (0.114 R)
• M34: 67,563,784 km (0.067 R)
• M35: 68,205,858 km (0.063 R)
• M36: 69,937,603 km (0.098 R)
• M37: 72,814,071 km (0.083 R)
• M38: 76,229,839 km (0.087 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 17,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit