🌌 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: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.51 AU - 0.79 AU

Year: 344 Days

Day: 42.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363

Radius: 13.4

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.7 AU - 0.7 AU

Year: 384 Days

Day: 12.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,560,046 km

• M1: 166,652 km (0.105 R)
• M2: 760,705 km (0.088 R)
• M3: 1,655,749 km (0.071 R)
• M4: 2,730,760 km (0.091 R)
• M5: 3,285,468 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.4

Radius: 10.2

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.09 AU - 2.41 AU

Year: 2214 Days

Day: 9.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 44,560,046 km

• M1: 127,158 km (0.046 R)
• M2: 1,701,377 km (0.106 R)
• M3: 2,711,761 km (0.087 R)
• M4: 4,358,085 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.8

Radius: 13.2

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.55 AU - 4.07 AU

Year: 4879 Days

Day: 12.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,560,046 km

• M1: 164,408 km (0.059 R)
• M2: 629,508 km (0.07 R)
• M3: 1,177,036 km (0.107 R)
• M4: 2,262,069 km (0.107 R)
• M5: 2,877,964 km (0.081 R)
• M6: 3,295,791 km (0.056 R)
• M7: 4,022,537 km (0.112 R)
• M8: 4,648,305 km (0.107 R)
• M9: 5,065,234 km (0.064 R)
• M10: 5,915,100 km (0.12 R)
• M11: 6,990,708 km (0.081 R)
• M12: 8,007,974 km (0.079 R)
• M13: 9,001,603 km (0.084 R)
• M14: 10,162,034 km (0.038 R)
• M15: 11,004,569 km (0.105 R)
• M16: 11,702,293 km (0.039 R)
• M17: 13,186,155 km (0.06 R)
• M18: 14,297,218 km (0.107 R)
• M19: 15,412,470 km (0.072 R)
• M20: 16,705,295 km (0.114 R)
• M21: 17,879,040 km (0.098 R)
• M22: 18,518,571 km (0.066 R)
• M23: 21,443,808 km (0.11 R)
• M24: 28,625,852 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129

Radius: 12.2

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.76 AU - 4.82 AU

Year: 5829 Days

Day: 11.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,560,046 km

• M1: 151,692 km (0.045 R)
• M2: 899,233 km (0.079 R)
• M3: 1,642,884 km (0.071 R)
• M4: 2,458,641 km (0.118 R)
• M5: 3,031,750 km (0.11 R)
• M6: 3,509,865 km (0.115 R)
• M7: 4,138,027 km (0.108 R)
• M8: 4,662,816 km (0.105 R)
• M9: 5,208,100 km (0.118 R)
• M10: 5,770,439 km (0.091 R)
• M11: 6,675,655 km (0.086 R)
• M12: 7,734,808 km (0.03 R)
• M13: 9,600,743 km (0.098 R)
• M14: 11,185,134 km (0.109 R)
• M15: 18,108,074 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.1

Radius: 8.9

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.12 AU - 5.8 AU

Year: 8369 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,560,046 km

• M1: 110,702 km (0.082 R)
• M2: 534,513 km (0.12 R)
• M3: 1,051,075 km (0.097 R)
• M4: 1,374,954 km (0.062 R)
• M5: 2,670,621 km (0.101 R)
• M6: 3,032,798 km (0.116 R)
• M7: 4,640,825 km (0.085 R)
• M8: 6,227,161 km (0.077 R)
• M9: 6,789,799 km (0.064 R)
• M10: 7,675,568 km (0.116 R)
• M11: 8,456,169 km (0.032 R)
• M12: 9,098,991 km (0.066 R)
• M13: 10,848,688 km (0.112 R)
• M14: 15,133,171 km (0.05 R)
• M15: 16,011,311 km (0.063 R)
• M16: 16,851,602 km (0.102 R)
• M17: 17,210,337 km (0.08 R)
• M18: 17,501,006 km (0.108 R)
• M19: 20,185,839 km (0.043 R)
• M20: 20,918,270 km (0.092 R)
• M21: 26,937,939 km (0.098 R)
• M22: 31,571,583 km (0.1 R)
• M23: 34,019,154 km (0.114 R)
• M24: 36,470,914 km (0.118 R)
• M25: 38,416,135 km (0.067 R)
• M26: 45,353,287 km (0.109 R)
• M27: 46,468,091 km (0.114 R)
• M28: 47,887,176 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 876.1

Radius: 3.5

Gravity: 71.52 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.22 AU - 6.58 AU

Year: 9401 Days

Day: 15.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,560,046 km

• M1: 45,328 km (0.062 R)
• M2: 198,816 km (0.053 R)
• M3: 385,663 km (0.06 R)
• M4: 604,226 km (0.1 R)
• M5: 2,313,381 km (0.107 R)
• M6: 3,382,258 km (0.052 R)
• M7: 4,410,145 km (0.107 R)
• M8: 5,157,237 km (0.081 R)
• M9: 5,805,744 km (0.092 R)
• M10: 6,392,467 km (0.095 R)
• M11: 6,857,866 km (0.099 R)
• M12: 7,139,558 km (0.034 R)
• M13: 8,389,149 km (0.078 R)
• M14: 10,289,641 km (0.107 R)
• M15: 10,712,105 km (0.115 R)
• M16: 11,091,037 km (0.1 R)
• M17: 11,704,687 km (0.105 R)
• M18: 11,875,977 km (0.027 R)
• M19: 12,165,000 km (0.106 R)
• M20: 14,714,746 km (0.066 R)
• M21: 19,133,717 km (0.104 R)
• M22: 27,954,905 km (0.092 R)
• M23: 33,350,452 km (0.094 R)
• M24: 33,464,894 km (0.11 R)
• M25: 35,689,714 km (0.05 R)
• M26: 46,425,605 km (0.079 R)
• M27: 49,932,029 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966.3

Radius: 3.3

Gravity: 88.73 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.9 AU - 7.74 AU

Year: 11684 Days

Day: 24.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 92.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 44,560,046 km

• M1: 40,990 km (0.07 R)
• M2: 175,030 km (0.1 R)
• M3: 299,196 km (0.105 R)
• M4: 456,274 km (0.063 R)
• M5: 684,261 km (0.08 R)
• M6: 804,537 km (0.117 R)
• M7: 1,885,980 km (0.115 R)
• M8: 1,993,840 km (0.119 R)
• M9: 2,509,504 km (0.071 R)
• M10: 3,059,576 km (0.115 R)
• M11: 4,519,651 km (0.048 R)
• M12: 6,149,520 km (0.115 R)
• M13: 6,924,137 km (0.118 R)
• M14: 8,324,074 km (0.068 R)
• M15: 8,913,191 km (0.091 R)
• M16: 9,582,192 km (0.077 R)
• M17: 10,228,754 km (0.114 R)
• M18: 12,094,539 km (0.066 R)
• M19: 12,530,916 km (0.11 R)
• M20: 16,710,980 km (0.099 R)
• M21: 17,487,393 km (0.12 R)
• M22: 19,028,251 km (0.116 R)
• M23: 20,394,079 km (0.086 R)
• M24: 21,280,148 km (0.114 R)
• M25: 22,563,398 km (0.09 R)
• M26: 22,750,844 km (0.087 R)
• M27: 29,422,909 km (0.088 R)
• M28: 29,534,659 km (0.049 R)
• M29: 31,477,486 km (0.095 R)
• M30: 33,139,968 km (0.12 R)
• M31: 33,747,634 km (0.079 R)
• M32: 34,115,794 km (0.057 R)
• M33: 34,860,193 km (0.117 R)
• M34: 39,283,503 km (0.056 R)
• M35: 41,629,198 km (0.075 R)
• M36: 42,052,560 km (0.027 R)
• M37: 48,909,229 km (0.111 R)
• M38: 49,223,235 km (0.101 R)
• M39: 49,380,612 km (0.069 R)
• M40: 49,855,136 km (0.089 R)
• M41: 51,458,376 km (0.109 R)
• M42: 58,215,712 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.6

Radius: 5

Gravity: 10.1 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.83 AU - 9.11 AU

Year: 14760 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 44,560,046 km

• M1: 62,682 km (0.083 R)
• M2: 325,974 km (0.03 R)
• M3: 523,144 km (0.114 R)
• M4: 1,028,635 km (0.103 R)
• M5: 1,216,231 km (0.046 R)
• M6: 1,547,740 km (0.037 R)
• M7: 1,826,590 km (0.106 R)
• M8: 3,265,572 km (0.12 R)
• M9: 3,878,624 km (0.055 R)
• M10: 5,524,949 km (0.091 R)
• M11: 6,724,424 km (0.046 R)
• M12: 7,147,188 km (0.025 R)
• M13: 8,130,644 km (0.087 R)
• M14: 8,433,730 km (0.066 R)
• M15: 8,744,295 km (0.113 R)
• M16: 9,247,692 km (0.041 R)
• M17: 11,563,766 km (0.1 R)
• M18: 13,266,489 km (0.099 R)
• M19: 14,935,851 km (0.065 R)
• M20: 17,372,651 km (0.097 R)
• M21: 18,909,919 km (0.103 R)
• M22: 20,061,972 km (0.119 R)
• M23: 21,260,101 km (0.063 R)
• M24: 22,845,091 km (0.117 R)
• M25: 23,448,419 km (0.026 R)
• M26: 24,239,642 km (0.106 R)
• M27: 26,909,964 km (0.065 R)
• M28: 27,874,571 km (0.074 R)
• M29: 30,593,513 km (0.058 R)
• M30: 31,115,609 km (0.085 R)
• M31: 34,038,602 km (0.104 R)
• M32: 37,614,290 km (0.074 R)
• M33: 42,717,223 km (0.075 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 19,714 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit