🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.47 AU - 0.75 AU

Year: 308 Days

Day: 42.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.8

Radius: 11.9

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.73 AU - 1.01 AU

Year: 524 Days

Day: 12 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,088,201 km

• M1: 147,952 km (0.077 R)
• M2: 787,184 km (0.09 R)
• M3: 1,221,616 km (0.081 R)
• M4: 1,592,619 km (0.072 R)
• M5: 2,163,185 km (0.106 R)
• M6: 2,664,936 km (0.06 R)
• M7: 3,080,071 km (0.1 R)
• M8: 3,463,041 km (0.089 R)
• M9: 4,268,476 km (0.056 R)
• M10: 4,809,272 km (0.092 R)
• M11: 5,531,830 km (0.118 R)
• M12: 6,010,244 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.3

Radius: 9.1

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.99 AU - 1.15 AU

Year: 715 Days

Day: 12.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,088,201 km

• M1: 113,246 km (0.031 R)
• M2: 431,739 km (0.077 R)
• M3: 779,704 km (0.086 R)
• M4: 1,222,215 km (0.101 R)
• M5: 2,096,315 km (0.071 R)
• M6: 2,673,015 km (0.096 R)
• M7: 4,011,467 km (0.088 R)
• M8: 4,349,558 km (0.116 R)
• M9: 4,770,826 km (0.045 R)
• M10: 5,713,591 km (0.083 R)
• M11: 6,181,085 km (0.112 R)
• M12: 6,940,294 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.9

Radius: 9.2

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.16 AU - 1.16 AU

Year: 807 Days

Day: 10.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 138.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,088,201 km

• M1: 114,442 km (0.102 R)
• M2: 491,579 km (0.049 R)
• M3: 835,205 km (0.111 R)
• M4: 1,206,956 km (0.052 R)
• M5: 1,586,037 km (0.105 R)
• M6: 1,888,524 km (0.115 R)
• M7: 2,588,342 km (0.077 R)
• M8: 2,882,452 km (0.102 R)
• M9: 3,199,150 km (0.108 R)
• M10: 3,657,518 km (0.105 R)
• M11: 4,225,093 km (0.031 R)
• M12: 4,652,943 km (0.105 R)
• M13: 5,128,365 km (0.065 R)
• M14: 5,496,076 km (0.117 R)
• M15: 6,091,177 km (0.112 R)
• M16: 6,526,207 km (0.063 R)
• M17: 7,337,476 km (0.105 R)
• M18: 7,705,038 km (0.095 R)
• M19: 8,937,276 km (0.114 R)
• M20: 9,672,998 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 12.6

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.7 AU - 3.06 AU

Year: 3156 Days

Day: 14.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,088,201 km

• M1: 156,928 km (0.072 R)
• M2: 1,194,838 km (0.083 R)
• M3: 2,196,546 km (0.095 R)
• M4: 3,371,038 km (0.081 R)
• M5: 4,970,240 km (0.068 R)
• M6: 9,398,486 km (0.103 R)
• M7: 10,260,020 km (0.113 R)
• M8: 11,438,852 km (0.095 R)
• M9: 16,088,054 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.2

Radius: 9.6

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.13 AU - 3.45 AU

Year: 3853 Days

Day: 7.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 46,088,201 km

• M1: 119,379 km (0.119 R)
• M2: 452,384 km (0.089 R)
• M3: 977,472 km (0.118 R)
• M4: 1,326,933 km (0.115 R)
• M5: 1,691,204 km (0.081 R)
• M6: 2,216,891 km (0.069 R)
• M7: 2,641,150 km (0.083 R)
• M8: 4,248,430 km (0.08 R)
• M9: 4,811,666 km (0.096 R)
• M10: 5,501,013 km (0.081 R)
• M11: 6,367,783 km (0.102 R)
• M12: 7,136,866 km (0.096 R)
• M13: 8,753,121 km (0.085 R)
• M14: 9,817,360 km (0.045 R)
• M15: 10,640,298 km (0.103 R)
• M16: 12,378,775 km (0.038 R)
• M17: 12,693,529 km (0.106 R)
• M18: 13,385,868 km (0.086 R)
• M19: 13,861,440 km (0.056 R)
• M20: 14,348,081 km (0.105 R)
• M21: 14,745,563 km (0.076 R)
• M22: 16,141,760 km (0.097 R)
• M23: 16,463,694 km (0.103 R)
• M24: 17,120,280 km (0.06 R)
• M25: 18,080,249 km (0.093 R)
• M26: 19,135,363 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.7

Radius: 14.5

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.79 AU - 3.89 AU

Year: 4859 Days

Day: 12.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 178.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,088,201 km

• M1: 180,265 km (0.116 R)
• M2: 728,093 km (0.112 R)
• M3: 1,186,311 km (0.036 R)
• M4: 2,096,764 km (0.113 R)
• M5: 2,602,255 km (0.118 R)
• M6: 3,378,668 km (0.044 R)
• M7: 3,843,618 km (0.092 R)
• M8: 5,864,237 km (0.12 R)
• M9: 8,590,957 km (0.036 R)
• M10: 9,193,388 km (0.118 R)
• M11: 11,127,538 km (0.078 R)
• M12: 12,307,716 km (0.04 R)
• M13: 12,879,778 km (0.041 R)
• M14: 13,974,835 km (0.074 R)
• M15: 24,851,797 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.6

Radius: 6.6

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.23 AU - 10.39 AU

Year: 16884 Days

Day: 21.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,088,201 km

• M1: 82,129 km (0.05 R)
• M2: 337,194 km (0.083 R)
• M3: 718,070 km (0.077 R)
• M4: 928,554 km (0.074 R)
• M5: 1,533,827 km (0.113 R)
• M6: 1,811,630 km (0.069 R)
• M7: 2,210,757 km (0.072 R)
• M8: 2,895,916 km (0.058 R)
• M9: 4,163,608 km (0.033 R)
• M10: 4,828,122 km (0.067 R)
• M11: 5,695,939 km (0.113 R)
• M12: 7,326,406 km (0.109 R)
• M13: 7,736,304 km (0.082 R)
• M14: 7,946,938 km (0.101 R)
• M15: 10,069,133 km (0.083 R)
• M16: 15,393,471 km (0.097 R)
• M17: 23,111,225 km (0.077 R)
• M18: 23,373,171 km (0.107 R)
• M19: 29,140,917 km (0.112 R)
• M20: 32,624,453 km (0.119 R)
• M21: 33,620,476 km (0.103 R)
• M22: 37,206,935 km (0.112 R)
• M23: 38,661,027 km (0.096 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: 256 - 17,435 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit