🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

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: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 34.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,766,902 km

• M1: 63,878 km (0.115 R)
• M2: 207,043 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719

Radius: 12.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.87 AU - 0.89 AU

Year: 533 Days

Day: 8.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,766,902 km

• M1: 151,393 km (0.113 R)
• M2: 944,411 km (0.112 R)
• M3: 1,515,576 km (0.071 R)
• M4: 1,928,017 km (0.077 R)
• M5: 2,743,625 km (0.078 R)
• M6: 3,777,047 km (0.04 R)
• M7: 4,533,563 km (0.087 R)
• M8: 6,140,095 km (0.091 R)
• M9: 6,818,671 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 10.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.98 AU - 1 AU

Year: 636 Days

Day: 13.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,766,902 km

• M1: 134,488 km (0.117 R)
• M2: 499,208 km (0.105 R)
• M3: 1,029,383 km (0.103 R)
• M4: 1,445,564 km (0.108 R)
• M5: 1,850,526 km (0.07 R)
• M6: 2,867,342 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.8

Radius: 10.8

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.5 AU - 1.62 AU

Year: 1258 Days

Day: 10.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,766,902 km

• M1: 134,339 km (0.098 R)
• M2: 586,124 km (0.116 R)
• M3: 951,442 km (0.067 R)
• M4: 1,622,539 km (0.106 R)
• M5: 2,232,898 km (0.11 R)
• M6: 2,771,749 km (0.093 R)
• M7: 3,221,441 km (0.047 R)
• M8: 3,676,218 km (0.119 R)
• M9: 4,173,631 km (0.07 R)
• M10: 4,698,570 km (0.043 R)
• M11: 5,606,479 km (0.102 R)
• M12: 6,670,868 km (0.117 R)
• M13: 7,577,431 km (0.038 R)

Asteroid Belt

Center: 2.84 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.8

Radius: 12.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.3 AU - 4.92 AU

Year: 5380 Days

Day: 14.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 47,766,902 km

• M1: 159,322 km (0.067 R)
• M2: 576,401 km (0.053 R)
• M3: 1,212,640 km (0.101 R)
• M4: 1,800,859 km (0.059 R)
• M5: 2,440,540 km (0.087 R)
• M6: 2,860,760 km (0.109 R)
• M7: 3,626,552 km (0.101 R)
• M8: 4,153,884 km (0.067 R)
• M9: 5,334,959 km (0.106 R)
• M10: 5,957,885 km (0.078 R)
• M11: 7,208,373 km (0.047 R)
• M12: 7,674,072 km (0.034 R)
• M13: 8,587,217 km (0.093 R)
• M14: 10,905,535 km (0.06 R)
• M15: 12,309,810 km (0.118 R)
• M16: 12,717,614 km (0.106 R)
• M17: 15,357,568 km (0.068 R)
• M18: 16,805,974 km (0.119 R)
• M19: 19,973,111 km (0.117 R)
• M20: 21,623,475 km (0.047 R)
• M21: 22,143,327 km (0.118 R)
• M22: 23,831,838 km (0.109 R)
• M23: 26,354,507 km (0.111 R)
• M24: 28,514,850 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.7

Radius: 10.4

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.5 AU - 5.7 AU

Year: 7437 Days

Day: 5.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,766,902 km

• M1: 129,402 km (0.051 R)
• M2: 585,975 km (0.115 R)
• M3: 1,230,442 km (0.087 R)
• M4: 1,852,620 km (0.069 R)
• M5: 2,561,116 km (0.108 R)
• M6: 3,085,456 km (0.065 R)
• M7: 3,930,235 km (0.117 R)
• M8: 4,558,846 km (0.076 R)
• M9: 5,490,691 km (0.113 R)
• M10: 6,102,396 km (0.085 R)
• M11: 8,938,323 km (0.06 R)
• M12: 9,278,509 km (0.106 R)
• M13: 9,745,553 km (0.104 R)
• M14: 11,908,290 km (0.074 R)
• M15: 14,117,551 km (0.083 R)
• M16: 15,158,453 km (0.087 R)
• M17: 16,305,719 km (0.098 R)
• M18: 17,983,908 km (0.116 R)
• M19: 19,331,635 km (0.051 R)
• M20: 19,965,930 km (0.113 R)
• M21: 20,614,138 km (0.105 R)
• M22: 21,816,306 km (0.061 R)
• M23: 23,206,070 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 13.4

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.44 AU - 5.92 AU

Year: 7612 Days

Day: 10.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,766,902 km

• M1: 172,786 km (0.083 R)
• M2: 601,832 km (0.1 R)
• M3: 1,047,185 km (0.071 R)
• M4: 2,115,912 km (0.112 R)
• M5: 2,624,395 km (0.06 R)
• M6: 3,347,252 km (0.066 R)
• M7: 3,867,105 km (0.118 R)
• M8: 4,413,586 km (0.063 R)
• M9: 5,376,847 km (0.101 R)
• M10: 6,511,098 km (0.073 R)
• M11: 10,136,901 km (0.082 R)
• M12: 12,078,233 km (0.076 R)
• M13: 13,896,146 km (0.045 R)
• M14: 14,870,627 km (0.104 R)
• M15: 17,575,955 km (0.097 R)
• M16: 23,856,971 km (0.096 R)
• M17: 29,671,391 km (0.084 R)
• M18: 36,140,153 km (0.094 R)
• M19: 37,398,869 km (0.116 R)
• M20: 40,612,232 km (0.114 R)
• M21: 41,350,647 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166.9

Radius: 4.5

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.17 AU - 8.33 AU

Year: 13931 Days

Day: 20.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 107 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,766,902 km

• M1: 59,390 km (0.077 R)
• M2: 229,633 km (0.109 R)
• M3: 474,973 km (0.041 R)
• M4: 696,228 km (0.026 R)
• M5: 993,779 km (0.09 R)
• M6: 1,371,663 km (0.108 R)
• M7: 1,810,134 km (0.087 R)
• M8: 2,150,769 km (0.097 R)
• M9: 2,353,922 km (0.114 R)
• M10: 2,759,632 km (0.113 R)
• M11: 3,363,858 km (0.071 R)
• M12: 5,390,011 km (0.098 R)
• M13: 6,603,998 km (0.101 R)
• M14: 8,312,854 km (0.091 R)
• M15: 11,270,255 km (0.067 R)
• M16: 13,915,145 km (0.078 R)
• M17: 14,861,052 km (0.094 R)
• M18: 16,748,978 km (0.059 R)
• M19: 17,750,236 km (0.097 R)
• M20: 19,003,717 km (0.076 R)
• M21: 19,871,384 km (0.078 R)
• M22: 20,916,774 km (0.082 R)
• M23: 22,313,869 km (0.099 R)
• M24: 22,712,846 km (0.119 R)
• M25: 26,787,144 km (0.106 R)
• M26: 27,237,733 km (0.077 R)
• M27: 29,950,840 km (0.12 R)
• M28: 36,015,987 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564.6

Radius: 6.1

Gravity: 15.17 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.92 AU - 8.72 AU

Year: 14120 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,766,902 km

• M1: 76,445 km (0.114 R)
• M2: 427,700 km (0.1 R)
• M3: 1,511,387 km (0.054 R)
• M4: 1,774,979 km (0.116 R)
• M5: 2,415,706 km (0.11 R)
• M6: 2,711,312 km (0.045 R)
• M7: 4,084,022 km (0.062 R)
• M8: 6,440,787 km (0.053 R)
• M9: 8,249,724 km (0.118 R)
• M10: 8,533,212 km (0.116 R)
• M11: 11,677,161 km (0.063 R)
• M12: 12,094,988 km (0.046 R)
• M13: 12,338,234 km (0.094 R)
• M14: 12,771,769 km (0.036 R)
• M15: 13,538,308 km (0.089 R)
• M16: 15,163,091 km (0.061 R)
• M17: 16,463,844 km (0.08 R)
• M18: 17,603,181 km (0.092 R)
• M19: 20,378,820 km (0.053 R)
• M20: 28,458,452 km (0.078 R)
• M21: 33,436,620 km (0.077 R)
• M22: 34,157,532 km (0.115 R)
• M23: 35,381,991 km (0.109 R)
• M24: 37,401,412 km (0.116 R)
• M25: 44,061,809 km (0.11 R)
• M26: 47,293,422 km (0.066 R)
• M27: 49,430,128 km (0.11 R)
• M28: 52,916,507 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.4

Radius: 5.3

Gravity: 11.01 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.17 AU - 9.97 AU

Year: 14802 Days

Day: 23.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 47,766,902 km

• M1: 70,909 km (0.05 R)
• M2: 246,986 km (0.118 R)
• M3: 489,035 km (0.069 R)
• M4: 775,964 km (0.026 R)
• M5: 1,147,116 km (0.102 R)
• M6: 1,379,741 km (0.104 R)
• M7: 1,585,438 km (0.108 R)
• M8: 1,795,773 km (0.105 R)
• M9: 2,182,035 km (0.078 R)
• M10: 3,258,242 km (0.047 R)
• M11: 5,609,471 km (0.086 R)
• M12: 6,100,302 km (0.034 R)
• M13: 7,493,956 km (0.111 R)
• M14: 9,372,905 km (0.063 R)
• M15: 11,270,105 km (0.096 R)
• M16: 14,541,511 km (0.114 R)
• M17: 14,736,138 km (0.12 R)
• M18: 15,330,939 km (0.108 R)
• M19: 16,079,228 km (0.091 R)
• M20: 16,709,484 km (0.08 R)
• M21: 17,796,163 km (0.111 R)
• M22: 19,949,175 km (0.107 R)
• M23: 24,306,064 km (0.093 R)
• M24: 26,850,723 km (0.081 R)
• M25: 34,955,936 km (0.058 R)
• M26: 35,422,681 km (0.051 R)
• M27: 35,775,433 km (0.104 R)
• M28: 36,011,947 km (0.095 R)
• M29: 44,824,459 km (0.047 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 10,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit