🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.9

Radius: 11.2

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.72 AU - 0.94 AU

Year: 513 Days

Day: 11.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,522,328 km

• M1: 139,276 km (0.058 R)
• M2: 515,813 km (0.053 R)
• M3: 944,561 km (0.092 R)
• M4: 2,034,681 km (0.045 R)
• M5: 2,846,997 km (0.105 R)
• M6: 4,145,207 km (0.098 R)
• M7: 5,061,046 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.3

Radius: 12

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.14 AU - 1.32 AU

Year: 925 Days

Day: 6.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,522,328 km

• M1: 150,495 km (0.073 R)
• M2: 628,610 km (0.099 R)
• M3: 1,004,101 km (0.057 R)
• M4: 1,382,284 km (0.099 R)
• M5: 2,442,784 km (0.055 R)
• M6: 3,999,798 km (0.097 R)
• M7: 5,283,946 km (0.118 R)
• M8: 6,138,150 km (0.035 R)
• M9: 8,515,111 km (0.094 R)
• M10: 9,229,441 km (0.067 R)
• M11: 10,223,369 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.7

Radius: 11.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.67 AU - 1.73 AU

Year: 1503 Days

Day: 12.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,522,328 km

• M1: 146,307 km (0.117 R)
• M2: 546,032 km (0.114 R)
• M3: 1,036,264 km (0.107 R)
• M4: 1,489,097 km (0.075 R)
• M5: 1,856,360 km (0.039 R)
• M6: 2,806,456 km (0.12 R)
• M7: 3,345,457 km (0.089 R)
• M8: 5,346,179 km (0.119 R)
• M9: 7,272,252 km (0.105 R)
• M10: 8,181,508 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.1

Radius: 8.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.92 AU - 2.62 AU

Year: 2320 Days

Day: 6.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,522,328 km

• M1: 109,506 km (0.071 R)
• M2: 703,708 km (0.039 R)
• M3: 1,000,511 km (0.096 R)
• M4: 1,834,519 km (0.071 R)
• M5: 2,188,467 km (0.108 R)
• M6: 3,478,749 km (0.029 R)
• M7: 4,271,468 km (0.088 R)
• M8: 4,627,062 km (0.114 R)
• M9: 5,775,525 km (0.12 R)
• M10: 6,905,737 km (0.104 R)
• M11: 7,557,984 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.9

Radius: 14.9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.39 AU - 3.87 AU

Year: 4691 Days

Day: 12.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,522,328 km

• M1: 185,352 km (0.091 R)
• M2: 660,475 km (0.103 R)
• M3: 1,547,440 km (0.11 R)
• M4: 2,153,611 km (0.111 R)
• M5: 3,280,532 km (0.118 R)
• M6: 4,582,033 km (0.029 R)
• M7: 5,351,116 km (0.099 R)
• M8: 6,705,725 km (0.059 R)
• M9: 7,434,865 km (0.097 R)
• M10: 8,309,863 km (0.119 R)
• M11: 8,952,685 km (0.093 R)
• M12: 9,663,274 km (0.085 R)
• M13: 10,447,766 km (0.066 R)
• M14: 13,796,065 km (0.094 R)
• M15: 17,232,179 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.1

Radius: 12.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.76 AU - 4.22 AU

Year: 5406 Days

Day: 5.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,522,328 km

• M1: 154,385 km (0.084 R)
• M2: 817,852 km (0.094 R)
• M3: 2,094,370 km (0.107 R)
• M4: 2,813,936 km (0.116 R)
• M5: 3,334,686 km (0.098 R)
• M6: 4,095,840 km (0.084 R)
• M7: 5,107,421 km (0.105 R)
• M8: 6,305,550 km (0.05 R)
• M9: 7,440,250 km (0.078 R)
• M10: 8,508,080 km (0.079 R)
• M11: 11,420,900 km (0.045 R)
• M12: 12,368,453 km (0.065 R)
• M13: 14,942,434 km (0.115 R)
• M14: 16,637,677 km (0.07 R)
• M15: 17,212,581 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.7

Radius: 7.9

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.57 AU - 7.09 AU

Year: 10802 Days

Day: 18.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,522,328 km

• M1: 99,183 km (0.034 R)
• M2: 450,290 km (0.105 R)
• M3: 760,855 km (0.118 R)
• M4: 1,091,616 km (0.106 R)
• M5: 1,686,866 km (0.063 R)
• M6: 2,874,673 km (0.077 R)
• M7: 3,666,793 km (0.09 R)
• M8: 3,928,440 km (0.116 R)
• M9: 4,177,072 km (0.04 R)
• M10: 8,570,761 km (0.046 R)
• M11: 11,960,200 km (0.036 R)
• M12: 12,807,074 km (0.058 R)
• M13: 15,961,644 km (0.063 R)
• M14: 19,671,372 km (0.11 R)
• M15: 22,467,207 km (0.102 R)
• M16: 23,754,347 km (0.116 R)
• M17: 26,123,827 km (0.072 R)
• M18: 26,386,820 km (0.1 R)
• M19: 30,934,596 km (0.106 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 13,928 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit