🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.8

Radius: 13.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.54 AU - 0.66 AU

Year: 315 Days

Day: 8 Hours

Environment

Temp: -150 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,352,772 km

• M1: 172,935 km (0.079 R)
• M2: 613,800 km (0.089 R)
• M3: 1,138,589 km (0.117 R)
• M4: 1,896,303 km (0.052 R)
• M5: 2,414,659 km (0.082 R)
• M6: 3,046,261 km (0.118 R)
• M7: 3,513,456 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.1

Radius: 11.2

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.69 AU - 0.77 AU

Year: 423 Days

Day: 12.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 137.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,352,772 km

• M1: 139,276 km (0.037 R)
• M2: 528,679 km (0.08 R)
• M3: 1,240,166 km (0.096 R)
• M4: 1,685,968 km (0.098 R)
• M5: 2,072,230 km (0.116 R)
• M6: 2,465,373 km (0.111 R)
• M7: 3,077,976 km (0.105 R)
• M8: 3,503,732 km (0.071 R)
• M9: 4,514,415 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.4

Radius: 13.3

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.82 AU - 1.14 AU

Year: 658 Days

Day: 12.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,352,772 km

• M1: 165,605 km (0.115 R)
• M2: 1,011,431 km (0.11 R)
• M3: 1,457,981 km (0.111 R)
• M4: 1,930,561 km (0.064 R)
• M5: 2,841,761 km (0.069 R)
• M6: 3,717,657 km (0.119 R)
• M7: 4,650,100 km (0.095 R)
• M8: 5,397,192 km (0.084 R)
• M9: 6,122,592 km (0.112 R)
• M10: 6,677,002 km (0.115 R)
• M11: 7,377,120 km (0.088 R)
• M12: 8,320,783 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.1

Radius: 13.9

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.78 AU - 1.92 AU

Year: 1707 Days

Day: 9.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,352,772 km

• M1: 174,431 km (0.074 R)
• M2: 975,827 km (0.1 R)
• M3: 1,506,301 km (0.112 R)
• M4: 2,314,578 km (0.097 R)
• M5: 2,868,539 km (0.112 R)
• M6: 3,593,191 km (0.068 R)
• M7: 4,081,180 km (0.095 R)
• M8: 5,170,551 km (0.12 R)
• M9: 5,611,865 km (0.103 R)
• M10: 7,305,612 km (0.044 R)
• M11: 7,834,740 km (0.077 R)
• M12: 9,676,439 km (0.056 R)
• M13: 10,281,413 km (0.059 R)
• M14: 10,911,669 km (0.11 R)
• M15: 12,560,985 km (0.116 R)
• M16: 13,200,367 km (0.114 R)
• M17: 14,072,223 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.2

Radius: 13

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.84 AU - 2.38 AU

Year: 2079 Days

Day: 10.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,352,772 km

• M1: 161,715 km (0.086 R)
• M2: 570,267 km (0.103 R)
• M3: 987,944 km (0.045 R)
• M4: 1,461,422 km (0.063 R)
• M5: 2,221,528 km (0.089 R)
• M6: 2,700,391 km (0.034 R)
• M7: 3,980,500 km (0.062 R)
• M8: 4,446,797 km (0.107 R)
• M9: 5,305,788 km (0.098 R)
• M10: 7,381,907 km (0.094 R)
• M11: 9,269,084 km (0.093 R)
• M12: 9,675,242 km (0.085 R)
• M13: 10,928,723 km (0.084 R)
• M14: 11,809,555 km (0.066 R)
• M15: 15,013,343 km (0.098 R)
• M16: 15,717,351 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.9

Radius: 8.9

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.18 AU - 3.4 AU

Year: 3161 Days

Day: 7.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,352,772 km

• M1: 110,852 km (0.053 R)
• M2: 788,680 km (0.109 R)
• M3: 1,219,971 km (0.098 R)
• M4: 1,710,203 km (0.052 R)
• M5: 2,655,811 km (0.114 R)
• M6: 3,154,570 km (0.114 R)
• M7: 4,383,666 km (0.069 R)
• M8: 4,700,664 km (0.12 R)
• M9: 5,130,609 km (0.084 R)
• M10: 6,936,255 km (0.084 R)
• M11: 9,953,794 km (0.114 R)
• M12: 11,031,796 km (0.117 R)
• M13: 14,631,719 km (0.079 R)
• M14: 15,916,765 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.6

Radius: 11.2

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.87 AU - 3.55 AU

Year: 3901 Days

Day: 10.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,352,772 km

• M1: 143,764 km (0.09 R)
• M2: 622,178 km (0.106 R)
• M3: 1,292,526 km (0.051 R)
• M4: 2,201,333 km (0.047 R)
• M5: 3,032,498 km (0.117 R)
• M6: 3,511,810 km (0.117 R)
• M7: 8,447,044 km (0.083 R)
• M8: 11,400,704 km (0.112 R)
• M9: 14,934,505 km (0.086 R)
• M10: 16,021,334 km (0.094 R)
• M11: 17,480,212 km (0.083 R)
• M12: 18,968,860 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.8

Radius: 6.6

Gravity: 13.06 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 8.32 AU - 12.06 AU

Year: 22062 Days

Day: 15.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,352,772 km

• M1: 82,129 km (0.103 R)
• M2: 377,286 km (0.091 R)
• M3: 916,586 km (0.114 R)
• M4: 1,361,640 km (0.087 R)
• M5: 1,703,172 km (0.071 R)
• M6: 2,267,455 km (0.102 R)
• M7: 2,511,748 km (0.097 R)
• M8: 3,186,883 km (0.062 R)
• M9: 5,000,159 km (0.098 R)
• M10: 5,224,257 km (0.111 R)
• M11: 11,827,058 km (0.055 R)
• M12: 12,565,024 km (0.11 R)
• M13: 14,431,108 km (0.097 R)
• M14: 15,195,553 km (0.084 R)
• M15: 15,429,973 km (0.052 R)
• M16: 15,826,258 km (0.112 R)
• M17: 17,823,240 km (0.025 R)
• M18: 22,410,659 km (0.098 R)
• M19: 23,748,064 km (0.082 R)
• M20: 35,310,782 km (0.115 R)
• M21: 37,259,743 km (0.064 R)
• M22: 43,221,518 km (0.064 R)
• M23: 53,669,582 km (0.115 R)
• M24: 55,868,970 km (0.09 R)
• M25: 62,425,845 km (0.041 R)
• M26: 63,027,827 km (0.104 R)
• M27: 73,416,651 km (0.108 R)
• M28: 74,311,994 km (0.084 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 14,427 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit