🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.48 AU - 0.76 AU

Year: 320 Days

Day: 29.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.59 AU - 0.69 AU

Year: 336 Days

Day: 35.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.5

Radius: 13.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1 AU - 1.2 AU

Year: 757 Days

Day: 14.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,303,442 km

• M1: 173,234 km (0.093 R)
• M2: 629,508 km (0.035 R)
• M3: 1,358,498 km (0.055 R)
• M4: 1,834,519 km (0.074 R)
• M5: 2,335,672 km (0.032 R)
• M6: 3,256,297 km (0.08 R)
• M7: 3,875,333 km (0.107 R)
• M8: 4,366,612 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.1

Radius: 8.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.51 AU - 2.79 AU

Year: 2830 Days

Day: 6 Hours

Environment

Temp: -207 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,303,442 km

• M1: 110,702 km (0.093 R)
• M2: 508,782 km (0.113 R)
• M3: 1,020,257 km (0.085 R)
• M4: 1,506,451 km (0.049 R)
• M5: 1,999,226 km (0.072 R)
• M6: 2,346,293 km (0.119 R)
• M7: 3,092,038 km (0.086 R)
• M8: 4,805,383 km (0.101 R)
• M9: 5,145,568 km (0.103 R)
• M10: 5,589,126 km (0.025 R)
• M11: 6,301,960 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.3

Radius: 12.4

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.73 AU - 2.99 AU

Year: 3173 Days

Day: 14.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,303,442 km

• M1: 155,432 km (0.09 R)
• M2: 2,160,941 km (0.068 R)
• M3: 2,776,686 km (0.066 R)
• M4: 4,282,239 km (0.103 R)
• M5: 5,035,016 km (0.074 R)
• M6: 7,191,319 km (0.073 R)
• M7: 7,710,873 km (0.057 R)
• M8: 8,411,290 km (0.112 R)
• M9: 13,237,766 km (0.113 R)
• M10: 14,603,894 km (0.104 R)
• M11: 15,017,532 km (0.11 R)
• M12: 15,724,382 km (0.072 R)
• M13: 16,305,869 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.3

Radius: 14.6

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.65 AU - 3.75 AU

Year: 4669 Days

Day: 8.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,303,442 km

• M1: 190,139 km (0.049 R)
• M2: 809,474 km (0.064 R)
• M3: 1,308,533 km (0.076 R)
• M4: 3,525,723 km (0.12 R)
• M5: 4,500,951 km (0.099 R)
• M6: 5,204,211 km (0.06 R)
• M7: 8,027,272 km (0.094 R)
• M8: 8,548,022 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.3

Radius: 11

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.11 AU - 4.77 AU

Year: 5130 Days

Day: 7.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 53,303,442 km

• M1: 137,929 km (0.082 R)
• M2: 500,106 km (0.108 R)
• M3: 1,149,360 km (0.112 R)
• M4: 1,694,196 km (0.112 R)
• M5: 2,372,921 km (0.109 R)
• M6: 2,794,488 km (0.063 R)
• M7: 3,653,928 km (0.094 R)
• M8: 4,269,074 km (0.119 R)
• M9: 4,734,473 km (0.093 R)
• M10: 5,706,560 km (0.104 R)
• M11: 7,120,559 km (0.081 R)
• M12: 10,535,131 km (0.062 R)
• M13: 11,242,729 km (0.085 R)
• M14: 12,700,560 km (0.109 R)
• M15: 14,337,460 km (0.055 R)
• M16: 14,796,725 km (0.112 R)
• M17: 16,295,546 km (0.105 R)
• M18: 17,893,252 km (0.043 R)
• M19: 21,323,680 km (0.103 R)
• M20: 22,149,910 km (0.097 R)
• M21: 24,188,031 km (0.092 R)
• M22: 25,502,547 km (0.085 R)
• M23: 26,605,233 km (0.094 R)
• M24: 27,739,484 km (0.055 R)
• M25: 28,633,631 km (0.107 R)
• M26: 29,546,926 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.3

Radius: 10.1

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.45 AU - 4.61 AU

Year: 5307 Days

Day: 11.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,303,442 km

• M1: 125,662 km (0.044 R)
• M2: 453,132 km (0.078 R)
• M3: 1,012,030 km (0.113 R)
• M4: 1,382,284 km (0.111 R)
• M5: 2,096,465 km (0.117 R)
• M6: 3,175,963 km (0.096 R)
• M7: 3,827,611 km (0.073 R)
• M8: 4,149,995 km (0.082 R)
• M9: 4,490,479 km (0.058 R)
• M10: 5,340,046 km (0.12 R)
• M11: 5,773,580 km (0.08 R)
• M12: 7,711,471 km (0.099 R)
• M13: 8,729,185 km (0.098 R)
• M14: 10,135,256 km (0.092 R)
• M15: 11,355,077 km (0.078 R)
• M16: 12,122,663 km (0.087 R)
• M17: 15,834,037 km (0.062 R)
• M18: 17,472,433 km (0.052 R)
• M19: 18,235,681 km (0.1 R)
• M20: 20,519,293 km (0.109 R)
• M21: 21,225,843 km (0.1 R)
• M22: 22,912,111 km (0.104 R)
• M23: 23,366,290 km (0.09 R)
• M24: 23,749,260 km (0.048 R)
• M25: 24,606,905 km (0.106 R)
• M26: 27,303,556 km (0.115 R)
• M27: 28,679,408 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.6

Radius: 5.4

Gravity: 30.16 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 5.19 AU - 7.39 AU

Year: 10349 Days

Day: 19.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,303,442 km

• M1: 67,169 km (0.1 R)
• M2: 310,715 km (0.051 R)
• M3: 611,107 km (0.087 R)
• M4: 803,041 km (0.103 R)
• M5: 1,150,258 km (0.081 R)
• M6: 1,577,659 km (0.061 R)
• M7: 1,763,011 km (0.108 R)
• M8: 2,330,136 km (0.097 R)
• M9: 3,011,405 km (0.097 R)
• M10: 3,225,031 km (0.074 R)
• M11: 3,423,398 km (0.096 R)
• M12: 4,039,591 km (0.1 R)
• M13: 5,148,261 km (0.036 R)
• M14: 6,215,941 km (0.084 R)
• M15: 6,602,652 km (0.113 R)
• M16: 6,801,916 km (0.086 R)
• M17: 7,254,300 km (0.098 R)
• M18: 8,780,198 km (0.109 R)
• M19: 9,416,288 km (0.084 R)
• M20: 10,454,198 km (0.111 R)
• M21: 10,945,328 km (0.083 R)
• M22: 14,153,903 km (0.119 R)
• M23: 14,890,523 km (0.069 R)
• M24: 20,438,360 km (0.083 R)
• M25: 23,160,892 km (0.057 R)
• M26: 23,344,449 km (0.076 R)
• M27: 31,733,299 km (0.112 R)
• M28: 32,301,471 km (0.108 R)
• M29: 32,992,165 km (0.055 R)
• M30: 49,409,634 km (0.055 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 17,789 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit