🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.5

Radius: 9.6

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.95 AU - 1.59 AU

Year: 1006 Days

Day: 6.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 124 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,810,037 km

• M1: 119,379 km (0.056 R)
• M2: 434,731 km (0.052 R)
• M3: 903,122 km (0.041 R)
• M4: 1,360,443 km (0.108 R)
• M5: 1,813,874 km (0.039 R)
• M6: 2,430,666 km (0.074 R)
• M7: 2,830,242 km (0.114 R)
• M8: 3,142,303 km (0.077 R)
• M9: 3,505,228 km (0.086 R)
• M10: 3,806,817 km (0.107 R)
• M11: 4,348,212 km (0.115 R)
• M12: 4,731,481 km (0.087 R)
• M13: 5,082,887 km (0.075 R)
• M14: 6,059,013 km (0.044 R)
• M15: 7,525,072 km (0.053 R)
• M16: 7,859,124 km (0.082 R)
• M17: 8,253,015 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.6

Radius: 8.2

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.37 AU - 2.93 AU

Year: 3032 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,810,037 km

• M1: 102,026 km (0.119 R)
• M2: 370,105 km (0.042 R)
• M3: 680,670 km (0.076 R)
• M4: 983,905 km (0.09 R)
• M5: 1,591,572 km (0.115 R)
• M6: 2,682,140 km (0.104 R)
• M7: 4,754,220 km (0.057 R)
• M8: 5,473,786 km (0.092 R)
• M9: 6,319,164 km (0.118 R)
• M10: 7,188,178 km (0.106 R)
• M11: 7,557,236 km (0.049 R)
• M12: 8,501,647 km (0.074 R)
• M13: 8,775,561 km (0.081 R)
• M14: 10,583,900 km (0.091 R)
• M15: 11,388,886 km (0.117 R)
• M16: 14,383,835 km (0.06 R)
• M17: 15,219,938 km (0.101 R)
• M18: 19,064,453 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.2

Radius: 8

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.45 AU - 5.21 AU

Year: 6333 Days

Day: 11.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,810,037 km

• M1: 105,766 km (0.043 R)
• M2: 1,165,517 km (0.035 R)
• M3: 1,421,180 km (0.088 R)
• M4: 2,395,511 km (0.079 R)
• M5: 3,282,626 km (0.117 R)
• M6: 4,728,190 km (0.035 R)
• M7: 6,257,380 km (0.119 R)
• M8: 6,927,578 km (0.093 R)
• M9: 7,312,643 km (0.091 R)
• M10: 8,196,467 km (0.103 R)
• M11: 9,851,319 km (0.04 R)
• M12: 10,133,760 km (0.099 R)
• M13: 15,047,451 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.3

Radius: 15

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.85 AU - 4.85 AU

Year: 6377 Days

Day: 9.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 39,810,037 km

• M1: 200,012 km (0.103 R)
• M2: 722,408 km (0.084 R)
• M3: 1,204,562 km (0.114 R)
• M4: 2,191,010 km (0.072 R)
• M5: 2,833,084 km (0.117 R)
• M6: 3,440,003 km (0.096 R)
• M7: 3,957,761 km (0.113 R)
• M8: 4,947,650 km (0.059 R)
• M9: 6,231,350 km (0.1 R)
• M10: 7,610,343 km (0.107 R)
• M11: 8,413,683 km (0.112 R)
• M12: 9,009,083 km (0.077 R)
• M13: 10,190,158 km (0.043 R)
• M14: 10,867,537 km (0.078 R)
• M15: 12,045,770 km (0.088 R)
• M16: 13,421,173 km (0.085 R)
• M17: 14,176,792 km (0.062 R)
• M18: 15,583,012 km (0.117 R)
• M19: 18,743,117 km (0.112 R)
• M20: 25,857,693 km (0.109 R)
• M21: 27,766,412 km (0.099 R)
• M22: 31,659,248 km (0.098 R)
• M23: 32,375,971 km (0.049 R)
• M24: 33,208,483 km (0.094 R)
• M25: 35,791,590 km (0.08 R)
• M26: 38,274,914 km (0.073 R)
• M27: 38,854,905 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697

Radius: 8.2

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.84 AU - 4.9 AU

Year: 6421 Days

Day: 8.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,810,037 km

• M1: 102,475 km (0.101 R)
• M2: 447,746 km (0.074 R)
• M3: 854,353 km (0.109 R)
• M4: 1,411,456 km (0.051 R)
• M5: 1,958,835 km (0.107 R)
• M6: 5,459,275 km (0.075 R)
• M7: 6,487,461 km (0.079 R)
• M8: 8,922,017 km (0.098 R)
• M9: 10,065,244 km (0.118 R)
• M10: 12,427,843 km (0.109 R)
• M11: 12,693,529 km (0.12 R)
• M12: 14,079,104 km (0.03 R)
• M13: 15,562,666 km (0.108 R)
• M14: 17,945,611 km (0.059 R)
• M15: 19,975,804 km (0.095 R)
• M16: 20,933,679 km (0.097 R)
• M17: 24,403,452 km (0.111 R)
• M18: 34,297,855 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.3

Radius: 15

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.89 AU - 5.59 AU

Year: 7254 Days

Day: 7.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,810,037 km

• M1: 188,194 km (0.101 R)
• M2: 1,134,999 km (0.103 R)
• M3: 1,834,369 km (0.101 R)
• M4: 2,833,084 km (0.099 R)
• M5: 3,502,685 km (0.106 R)
• M6: 6,699,741 km (0.082 R)
• M7: 8,396,330 km (0.072 R)
• M8: 11,378,414 km (0.114 R)
• M9: 13,021,896 km (0.09 R)
• M10: 13,721,865 km (0.064 R)
• M11: 15,133,620 km (0.097 R)
• M12: 20,181,052 km (0.113 R)
• M13: 21,278,652 km (0.12 R)
• M14: 23,507,211 km (0.082 R)
• M15: 25,255,561 km (0.064 R)
• M16: 27,277,377 km (0.103 R)
• M17: 28,912,032 km (0.057 R)
• M18: 39,028,289 km (0.096 R)
• M19: 40,117,212 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196

Radius: 6.2

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.82 AU - 8.98 AU

Year: 14150 Days

Day: 21.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,810,037 km

• M1: 77,193 km (0.032 R)
• M2: 414,386 km (0.073 R)
• M3: 1,036,115 km (0.09 R)
• M4: 1,416,093 km (0.069 R)
• M5: 1,638,695 km (0.054 R)
• M6: 2,344,498 km (0.115 R)
• M7: 2,544,510 km (0.061 R)
• M8: 3,649,739 km (0.112 R)
• M9: 6,509,003 km (0.064 R)
• M10: 11,140,553 km (0.036 R)
• M11: 11,552,097 km (0.107 R)
• M12: 13,243,600 km (0.073 R)
• M13: 14,297,966 km (0.09 R)
• M14: 20,804,127 km (0.095 R)
• M15: 24,737,354 km (0.103 R)
• M16: 28,466,979 km (0.066 R)
• M17: 29,821,737 km (0.08 R)
• M18: 38,513,224 km (0.099 R)
• M19: 39,335,115 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 18,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit