🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.47 AU - 0.73 AU

Year: 305 Days

Day: 17.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.62 AU - 0.66 AU

Year: 336 Days

Day: 13.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.9

Radius: 10

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.66 AU - 1.08 AU

Year: 532 Days

Day: 9.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,320,592 km

• M1: 124,765 km (0.09 R)
• M2: 492,177 km (0.031 R)
• M3: 1,099,395 km (0.04 R)
• M4: 1,491,192 km (0.118 R)
• M5: 1,926,222 km (0.107 R)
• M6: 2,302,461 km (0.082 R)
• M7: 3,009,909 km (0.049 R)
• M8: 3,445,688 km (0.111 R)
• M9: 4,213,424 km (0.09 R)
• M10: 5,011,080 km (0.081 R)
• M11: 5,337,054 km (0.073 R)
• M12: 5,694,742 km (0.092 R)
• M13: 6,141,292 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.7

Radius: 14.5

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.91 AU - 1.43 AU

Year: 830 Days

Day: 10.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,320,592 km

• M1: 180,415 km (0.1 R)
• M2: 659,727 km (0.06 R)
• M3: 1,120,787 km (0.078 R)
• M4: 1,771,089 km (0.099 R)
• M5: 2,273,439 km (0.076 R)
• M6: 2,994,501 km (0.083 R)
• M7: 3,625,804 km (0.066 R)
• M8: 4,389,501 km (0.101 R)
• M9: 5,026,937 km (0.078 R)
• M10: 5,636,997 km (0.119 R)
• M11: 6,372,570 km (0.111 R)
• M12: 6,904,839 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.3

Radius: 11.3

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.35 AU - 1.49 AU

Year: 1110 Days

Day: 5.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,320,592 km

• M1: 140,622 km (0.113 R)
• M2: 560,394 km (0.096 R)
• M3: 998,715 km (0.066 R)
• M4: 1,445,265 km (0.047 R)
• M5: 1,997,132 km (0.045 R)
• M6: 2,433,060 km (0.105 R)
• M7: 2,825,006 km (0.098 R)
• M8: 3,246,274 km (0.101 R)
• M9: 3,652,582 km (0.096 R)
• M10: 4,263,240 km (0.092 R)
• M11: 4,668,202 km (0.113 R)
• M12: 5,481,116 km (0.073 R)
• M13: 5,862,890 km (0.096 R)
• M14: 6,680,143 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.3

Radius: 9.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.15 AU - 2.91 AU

Year: 2640 Days

Day: 7.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,320,592 km

• M1: 127,757 km (0.068 R)
• M2: 703,409 km (0.114 R)
• M3: 1,107,623 km (0.105 R)
• M4: 1,489,097 km (0.078 R)
• M5: 2,063,254 km (0.099 R)
• M6: 2,414,360 km (0.038 R)
• M7: 3,122,856 km (0.064 R)
• M8: 4,152,687 km (0.11 R)
• M9: 5,008,387 km (0.097 R)
• M10: 5,932,902 km (0.093 R)
• M11: 6,412,513 km (0.11 R)
• M12: 7,320,422 km (0.109 R)
• M13: 8,767,034 km (0.057 R)
• M14: 9,329,522 km (0.077 R)
• M15: 9,915,646 km (0.087 R)
• M16: 10,790,794 km (0.12 R)
• M17: 11,127,688 km (0.114 R)
• M18: 11,964,987 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.7

Radius: 14.3

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.99 AU - 6.05 AU

Year: 7378 Days

Day: 6.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,320,592 km

• M1: 177,872 km (0.119 R)
• M2: 632,949 km (0.107 R)
• M3: 1,551,629 km (0.104 R)
• M4: 2,489,309 km (0.116 R)
• M5: 3,680,706 km (0.085 R)
• M6: 6,422,985 km (0.081 R)
• M7: 12,826,970 km (0.083 R)
• M8: 13,620,288 km (0.059 R)
• M9: 17,629,810 km (0.058 R)
• M10: 18,610,873 km (0.072 R)
• M11: 21,773,372 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500.5

Radius: 7.1

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.54 AU - 8.62 AU

Year: 12358 Days

Day: 17.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 115.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,320,592 km

• M1: 88,562 km (0.09 R)
• M2: 541,395 km (0.109 R)
• M3: 836,102 km (0.062 R)
• M4: 1,624,782 km (0.083 R)
• M5: 1,920,986 km (0.095 R)
• M6: 2,581,910 km (0.1 R)
• M7: 3,240,888 km (0.111 R)
• M8: 3,508,818 km (0.106 R)
• M9: 3,818,037 km (0.107 R)
• M10: 4,061,732 km (0.059 R)
• M11: 6,144,284 km (0.075 R)
• M12: 7,188,028 km (0.072 R)
• M13: 8,664,709 km (0.102 R)
• M14: 9,279,257 km (0.039 R)
• M15: 9,821,699 km (0.062 R)
• M16: 10,437,443 km (0.042 R)
• M17: 11,297,930 km (0.108 R)
• M18: 12,735,865 km (0.037 R)
• M19: 13,843,937 km (0.104 R)
• M20: 14,421,534 km (0.11 R)
• M21: 15,487,718 km (0.082 R)
• M22: 15,900,758 km (0.034 R)
• M23: 21,617,491 km (0.088 R)
• M24: 29,926,007 km (0.082 R)
• M25: 30,352,361 km (0.086 R)
• M26: 31,326,093 km (0.053 R)
• M27: 34,140,478 km (0.112 R)
• M28: 34,840,147 km (0.058 R)
• M29: 35,193,497 km (0.079 R)
• M30: 37,241,492 km (0.109 R)
• M31: 40,136,959 km (0.118 R)
• M32: 42,237,463 km (0.059 R)
• M33: 42,505,093 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.1

Radius: 6.8

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 8.13 AU - 13.13 AU

Year: 22736 Days

Day: 18.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 60,320,592 km

• M1: 85,570 km (0.112 R)
• M2: 734,675 km (0.026 R)
• M3: 1,244,056 km (0.109 R)
• M4: 1,584,241 km (0.099 R)
• M5: 1,967,362 km (0.06 R)
• M6: 2,431,265 km (0.086 R)
• M7: 2,825,305 km (0.119 R)
• M8: 3,337,977 km (0.077 R)
• M9: 4,579,340 km (0.041 R)
• M10: 5,758,620 km (0.094 R)
• M11: 7,084,806 km (0.105 R)
• M12: 8,121,968 km (0.086 R)
• M13: 8,360,277 km (0.109 R)
• M14: 9,001,603 km (0.116 R)
• M15: 10,106,383 km (0.104 R)
• M16: 11,064,707 km (0.106 R)
• M17: 11,837,380 km (0.069 R)
• M18: 13,891,957 km (0.095 R)
• M19: 15,580,917 km (0.083 R)
• M20: 16,098,227 km (0.106 R)
• M21: 16,398,919 km (0.081 R)
• M22: 21,191,436 km (0.066 R)
• M23: 21,462,059 km (0.049 R)
• M24: 24,592,693 km (0.102 R)
• M25: 25,700,465 km (0.073 R)
• M26: 26,631,263 km (0.036 R)
• M27: 27,799,174 km (0.082 R)
• M28: 28,669,684 km (0.074 R)
• M29: 31,859,859 km (0.116 R)
• M30: 33,175,422 km (0.081 R)
• M31: 34,776,269 km (0.104 R)
• M32: 35,152,956 km (0.08 R)
• M33: 36,946,635 km (0.109 R)
• M34: 38,264,592 km (0.116 R)
• M35: 46,532,268 km (0.088 R)
• M36: 48,692,312 km (0.087 R)
• M37: 54,046,420 km (0.071 R)
• M38: 55,401,178 km (0.118 R)
• M39: 56,086,785 km (0.111 R)
• M40: 59,242,851 km (0.117 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: 388 - 17,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit