🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.5 AU - 0.8 AU

Year: 338 Days

Day: 33.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 14.1

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.72 AU - 0.92 AU

Year: 479 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,732,072 km

• M1: 175,329 km (0.036 R)
• M2: 1,195,885 km (0.105 R)
• M3: 1,961,677 km (0.091 R)
• M4: 2,917,009 km (0.04 R)
• M5: 3,434,019 km (0.11 R)
• M6: 4,191,433 km (0.05 R)
• M7: 4,715,923 km (0.048 R)
• M8: 5,267,790 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.9

Radius: 14.3

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.24 AU - 1.86 AU

Year: 1246 Days

Day: 14 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,732,072 km

• M1: 177,872 km (0.118 R)
• M2: 629,358 km (0.112 R)
• M3: 1,308,084 km (0.104 R)
• M4: 1,854,116 km (0.097 R)
• M5: 2,320,263 km (0.114 R)
• M6: 2,918,355 km (0.039 R)
• M7: 3,742,939 km (0.064 R)
• M8: 4,236,612 km (0.056 R)
• M9: 4,773,967 km (0.117 R)
• M10: 5,561,450 km (0.049 R)
• M11: 7,938,561 km (0.095 R)
• M12: 9,367,669 km (0.084 R)
• M13: 10,475,441 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.1

Radius: 10.3

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.78 AU - 1.8 AU

Year: 1546 Days

Day: 13.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 87,732,072 km

• M1: 128,056 km (0.08 R)
• M2: 587,321 km (0.099 R)
• M3: 1,021,604 km (0.067 R)
• M4: 1,345,334 km (0.11 R)
• M5: 1,738,926 km (0.111 R)
• M6: 2,488,860 km (0.08 R)
• M7: 2,820,967 km (0.069 R)
• M8: 3,294,295 km (0.085 R)
• M9: 4,540,146 km (0.114 R)
• M10: 4,932,840 km (0.072 R)
• M11: 5,507,146 km (0.116 R)
• M12: 6,528,451 km (0.043 R)
• M13: 6,895,564 km (0.073 R)
• M14: 7,614,083 km (0.057 R)
• M15: 7,962,347 km (0.07 R)
• M16: 8,290,714 km (0.083 R)
• M17: 9,330,868 km (0.099 R)
• M18: 12,290,063 km (0.106 R)
• M19: 13,555,661 km (0.098 R)
• M20: 14,816,323 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.4

Radius: 14.1

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.7 AU - 2.26 AU

Year: 1799 Days

Day: 6.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 87,732,072 km

• M1: 177,124 km (0.054 R)
• M2: 681,119 km (0.058 R)
• M3: 1,157,439 km (0.103 R)
• M4: 1,655,151 km (0.06 R)
• M5: 2,505,914 km (0.115 R)
• M6: 3,474,111 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.7

Radius: 9.2

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 4.47 AU - 7.39 AU

Year: 9324 Days

Day: 14.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,732,072 km

• M1: 114,442 km (0.106 R)
• M2: 446,550 km (0.088 R)
• M3: 924,964 km (0.105 R)
• M4: 1,263,055 km (0.087 R)
• M5: 2,314,578 km (0.098 R)
• M6: 3,698,508 km (0.119 R)
• M7: 6,151,764 km (0.075 R)
• M8: 7,179,501 km (0.108 R)
• M9: 8,032,658 km (0.116 R)
• M10: 9,258,612 km (0.099 R)
• M11: 10,751,449 km (0.088 R)
• M12: 11,503,777 km (0.046 R)
• M13: 12,779,996 km (0.081 R)
• M14: 15,423,092 km (0.105 R)
• M15: 16,641,267 km (0.118 R)
• M16: 16,972,178 km (0.112 R)
• M17: 17,442,962 km (0.082 R)
• M18: 19,051,289 km (0.103 R)
• M19: 25,154,134 km (0.103 R)
• M20: 27,020,367 km (0.066 R)
• M21: 27,385,985 km (0.104 R)
• M22: 28,033,743 km (0.087 R)
• M23: 30,038,654 km (0.102 R)
• M24: 33,589,509 km (0.112 R)
• M25: 35,302,106 km (0.048 R)
• M26: 37,072,297 km (0.087 R)
• M27: 38,553,466 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 368.7

Radius: 4.8

Gravity: 16 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 7.91 AU - 8.63 AU

Year: 15356 Days

Day: 22.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,732,072 km

• M1: 144,811 km (0.096 R)
• M2: 666,010 km (0.117 R)
• M3: 869,612 km (0.111 R)
• M4: 1,390,512 km (0.088 R)
• M5: 2,580,414 km (0.113 R)
• M6: 3,064,213 km (0.098 R)
• M7: 4,268,027 km (0.116 R)
• M8: 6,423,433 km (0.039 R)
• M9: 8,177,020 km (0.051 R)
• M10: 14,034,375 km (0.076 R)
• M11: 19,407,930 km (0.074 R)
• M12: 22,725,413 km (0.054 R)
• M13: 25,812,215 km (0.1 R)
• M14: 28,745,829 km (0.056 R)
• M15: 30,130,208 km (0.116 R)
• M16: 31,558,419 km (0.101 R)
• M17: 37,472,621 km (0.063 R)
• M18: 38,994,181 km (0.086 R)
• M19: 47,078,300 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.8

Radius: 6.1

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 7.86 AU - 9.64 AU

Year: 16712 Days

Day: 15.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,732,072 km

• M1: 81,381 km (0.086 R)
• M2: 312,360 km (0.068 R)
• M3: 1,701,227 km (0.115 R)
• M4: 2,336,270 km (0.092 R)
• M5: 2,646,835 km (0.085 R)
• M6: 3,422,350 km (0.101 R)
• M7: 4,227,636 km (0.083 R)
• M8: 4,719,514 km (0.083 R)
• M9: 5,089,320 km (0.043 R)
• M10: 6,725,771 km (0.034 R)
• M11: 7,075,082 km (0.035 R)
• M12: 7,436,361 km (0.028 R)
• M13: 8,684,605 km (0.111 R)
• M14: 9,966,809 km (0.118 R)
• M15: 10,626,984 km (0.1 R)
• M16: 11,479,243 km (0.084 R)
• M17: 12,491,572 km (0.045 R)
• M18: 12,724,346 km (0.11 R)
• M19: 13,500,909 km (0.06 R)
• M20: 15,346,647 km (0.111 R)
• M21: 15,816,085 km (0.086 R)
• M22: 16,925,054 km (0.107 R)
• M23: 18,011,135 km (0.066 R)
• M24: 20,724,242 km (0.116 R)
• M25: 21,546,731 km (0.098 R)
• M26: 22,734,688 km (0.09 R)
• M27: 23,609,386 km (0.104 R)
• M28: 24,325,212 km (0.111 R)
• M29: 25,894,195 km (0.096 R)
• M30: 29,849,562 km (0.061 R)
• M31: 30,792,029 km (0.087 R)
• M32: 35,920,094 km (0.099 R)
• M33: 39,930,813 km (0.054 R)
• M34: 42,632,700 km (0.084 R)
• M35: 43,160,781 km (0.076 R)
• M36: 43,559,758 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.4

Radius: 4

Gravity: 48.4 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.01 AU - 11.27 AU

Year: 17842 Days

Day: 20.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 87,732,072 km

• M1: 49,816 km (0.065 R)
• M2: 251,175 km (0.083 R)
• M3: 499,657 km (0.056 R)
• M4: 990,338 km (0.043 R)
• M5: 1,252,583 km (0.031 R)
• M6: 1,559,707 km (0.043 R)
• M7: 1,877,304 km (0.092 R)
• M8: 2,236,488 km (0.086 R)
• M9: 2,784,764 km (0.08 R)
• M10: 3,011,854 km (0.098 R)
• M11: 3,648,542 km (0.119 R)
• M12: 3,889,844 km (0.113 R)
• M13: 5,449,402 km (0.118 R)
• M14: 6,561,961 km (0.111 R)
• M15: 7,573,841 km (0.06 R)
• M16: 7,867,053 km (0.108 R)
• M17: 10,017,821 km (0.104 R)
• M18: 11,039,874 km (0.058 R)
• M19: 11,737,150 km (0.072 R)
• M20: 16,224,188 km (0.047 R)
• M21: 19,292,141 km (0.085 R)
• M22: 28,488,072 km (0.086 R)
• M23: 30,401,878 km (0.087 R)
• M24: 30,646,919 km (0.103 R)
• M25: 31,265,506 km (0.095 R)
• M26: 37,491,919 km (0.11 R)
• M27: 43,092,115 km (0.063 R)
• M28: 44,811,593 km (0.073 R)
• M29: 46,090,506 km (0.081 R)
• M30: 47,065,435 km (0.107 R)
• M31: 59,474,578 km (0.07 R)
• M32: 61,603,655 km (0.052 R)
• M33: 62,390,241 km (0.118 R)
• M34: 64,587,983 km (0.119 R)
• M35: 72,140,581 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759

Radius: 3.9

Gravity: 49.9 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.98 AU - 12 AU

Year: 23524 Days

Day: 16.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 87,732,072 km

• M1: 51,611 km (0.098 R)
• M2: 188,942 km (0.098 R)
• M3: 368,759 km (0.106 R)
• M4: 510,428 km (0.115 R)
• M5: 895,792 km (0.108 R)
• M6: 1,129,314 km (0.043 R)
• M7: 1,369,868 km (0.071 R)
• M8: 1,554,322 km (0.101 R)
• M9: 2,143,139 km (0.105 R)
• M10: 2,368,882 km (0.032 R)
• M11: 2,737,192 km (0.077 R)
• M12: 3,199,599 km (0.118 R)
• M13: 5,618,298 km (0.092 R)
• M14: 5,873,362 km (0.113 R)
• M15: 6,136,056 km (0.069 R)
• M16: 6,971,410 km (0.095 R)
• M17: 7,671,528 km (0.062 R)
• M18: 8,864,571 km (0.047 R)
• M19: 9,327,577 km (0.066 R)
• M20: 9,928,511 km (0.071 R)
• M21: 11,341,015 km (0.052 R)
• M22: 15,529,755 km (0.092 R)
• M23: 16,372,440 km (0.113 R)
• M24: 16,631,094 km (0.107 R)
• M25: 20,246,127 km (0.078 R)
• M26: 21,869,264 km (0.083 R)
• M27: 22,393,754 km (0.119 R)
• M28: 22,926,622 km (0.087 R)
• M29: 23,577,223 km (0.037 R)
• M30: 27,863,052 km (0.117 R)
• M31: 34,158,879 km (0.118 R)
• M32: 41,499,048 km (0.079 R)
• M33: 52,018,920 km (0.104 R)
• M34: 68,996,782 km (0.079 R)
• M35: 70,350,194 km (0.106 R)
• M36: 77,625,288 km (0.118 R)
• M37: 80,571,020 km (0.074 R)
• M38: 85,644,482 km (0.114 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 19,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit