🌌 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: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.61 AU - 0.69 AU

Year: 338 Days

Day: 17.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,885,456 km

• M1: 51,013 km (0.047 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.7

Radius: 13.5

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.97 AU - 1.21 AU

Year: 735 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,885,456 km

• M1: 167,849 km (0.061 R)
• M2: 679,623 km (0.098 R)
• M3: 1,119,890 km (0.114 R)
• M4: 1,550,582 km (0.074 R)
• M5: 2,239,331 km (0.109 R)
• M6: 4,166,301 km (0.076 R)
• M7: 4,686,602 km (0.116 R)
• M8: 5,202,864 km (0.1 R)
• M9: 5,740,220 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.2

Radius: 12.8

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.45 AU - 2.35 AU

Year: 1691 Days

Day: 10.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,885,456 km

• M1: 165,605 km (0.039 R)
• M2: 2,495,143 km (0.068 R)
• M3: 2,907,135 km (0.103 R)
• M4: 3,825,666 km (0.093 R)
• M5: 4,647,856 km (0.118 R)
• M6: 6,129,474 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 14

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.29 AU - 2.67 AU

Year: 2522 Days

Day: 6.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,885,456 km

• M1: 175,179 km (0.077 R)
• M2: 852,558 km (0.05 R)
• M3: 1,358,199 km (0.07 R)
• M4: 2,380,850 km (0.094 R)
• M5: 2,854,178 km (0.06 R)
• M6: 4,855,049 km (0.087 R)
• M7: 8,772,718 km (0.083 R)
• M8: 9,815,266 km (0.079 R)
• M9: 10,472,449 km (0.101 R)
• M10: 13,316,006 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.9

Radius: 10.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.03 AU - 3.23 AU

Year: 2754 Days

Day: 13.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,885,456 km

• M1: 135,685 km (0.09 R)
• M2: 525,687 km (0.052 R)
• M3: 1,120,638 km (0.089 R)
• M4: 1,496,876 km (0.087 R)
• M5: 2,229,158 km (0.069 R)
• M6: 2,784,615 km (0.075 R)
• M7: 3,357,425 km (0.086 R)
• M8: 3,703,445 km (0.112 R)
• M9: 4,293,309 km (0.112 R)
• M10: 6,176,148 km (0.075 R)
• M11: 6,911,272 km (0.069 R)
• M12: 8,148,895 km (0.063 R)
• M13: 10,289,940 km (0.104 R)
• M14: 10,830,437 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23

Radius: 8.9

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.73 AU - 5.37 AU

Year: 6267 Days

Day: 12.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 94.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,885,456 km

• M1: 126,410 km (0.105 R)
• M2: 484,996 km (0.093 R)
• M3: 1,651,261 km (0.096 R)
• M4: 2,079,859 km (0.075 R)
• M5: 3,746,529 km (0.088 R)
• M6: 8,616,538 km (0.031 R)
• M7: 8,985,447 km (0.088 R)
• M8: 10,439,987 km (0.091 R)
• M9: 10,958,044 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.7

Radius: 12.5

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.46 AU - 6.06 AU

Year: 7789 Days

Day: 6.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,885,456 km

• M1: 166,652 km (0.092 R)
• M2: 974,331 km (0.108 R)
• M3: 1,700,479 km (0.068 R)
• M4: 2,317,421 km (0.094 R)
• M5: 2,821,416 km (0.102 R)
• M6: 3,420,256 km (0.114 R)
• M7: 4,410,744 km (0.073 R)
• M8: 5,220,666 km (0.081 R)
• M9: 5,835,215 km (0.031 R)
• M10: 6,918,752 km (0.111 R)
• M11: 9,526,692 km (0.111 R)
• M12: 10,637,157 km (0.11 R)
• M13: 22,027,239 km (0.114 R)
• M14: 27,347,089 km (0.117 R)
• M15: 29,581,034 km (0.118 R)
• M16: 30,742,362 km (0.087 R)
• M17: 34,303,540 km (0.108 R)
• M18: 36,567,404 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 893.8

Radius: 7.6

Gravity: 15.47 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.41 AU - 8.07 AU

Year: 12578 Days

Day: 17.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 79,885,456 km

• M1: 95,593 km (0.1 R)
• M2: 339,438 km (0.036 R)
• M3: 875,297 km (0.09 R)
• M4: 2,662,693 km (0.06 R)
• M5: 2,914,017 km (0.035 R)
• M6: 3,545,021 km (0.027 R)
• M7: 4,545,083 km (0.109 R)
• M8: 4,838,893 km (0.06 R)
• M9: 5,076,005 km (0.072 R)
• M10: 5,647,469 km (0.095 R)
• M11: 6,182,132 km (0.092 R)
• M12: 7,046,658 km (0.064 R)
• M13: 7,485,578 km (0.087 R)
• M14: 8,130,644 km (0.116 R)
• M15: 8,564,478 km (0.115 R)
• M16: 9,743,609 km (0.102 R)
• M17: 10,625,189 km (0.111 R)
• M18: 11,558,979 km (0.077 R)
• M19: 12,995,717 km (0.115 R)
• M20: 13,455,730 km (0.08 R)
• M21: 14,131,464 km (0.094 R)
• M22: 15,187,325 km (0.117 R)
• M23: 16,069,205 km (0.091 R)
• M24: 19,425,134 km (0.095 R)
• M25: 20,113,434 km (0.09 R)
• M26: 21,086,119 km (0.114 R)
• M27: 24,389,988 km (0.065 R)
• M28: 27,591,083 km (0.047 R)
• M29: 30,713,640 km (0.063 R)
• M30: 31,765,462 km (0.105 R)
• M31: 32,961,946 km (0.08 R)
• M32: 37,386,453 km (0.069 R)
• M33: 37,916,029 km (0.082 R)
• M34: 39,125,977 km (0.104 R)
• M35: 46,016,006 km (0.067 R)
• M36: 54,346,812 km (0.092 R)
• M37: 55,711,593 km (0.069 R)
• M38: 57,449,472 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.1

Radius: 6.2

Gravity: 22.51 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.11 AU - 11.05 AU

Year: 19145 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,885,456 km

• M1: 78,688 km (0.056 R)
• M2: 310,416 km (0.03 R)
• M3: 527,183 km (0.064 R)
• M4: 734,974 km (0.044 R)
• M5: 1,665,473 km (0.114 R)
• M6: 1,905,278 km (0.064 R)
• M7: 3,989,925 km (0.043 R)
• M8: 4,596,095 km (0.119 R)
• M9: 4,921,321 km (0.027 R)
• M10: 10,173,403 km (0.067 R)
• M11: 10,978,240 km (0.064 R)
• M12: 13,500,609 km (0.06 R)
• M13: 18,281,309 km (0.114 R)
• M14: 19,005,811 km (0.109 R)
• M15: 21,492,576 km (0.071 R)
• M16: 22,299,358 km (0.096 R)
• M17: 22,607,081 km (0.035 R)
• M18: 24,296,041 km (0.095 R)
• M19: 25,060,785 km (0.059 R)
• M20: 25,282,339 km (0.12 R)
• M21: 25,504,941 km (0.047 R)
• M22: 30,114,351 km (0.104 R)
• M23: 37,514,957 km (0.087 R)
• M24: 43,440,080 km (0.112 R)
• M25: 46,540,197 km (0.058 R)
• M26: 52,812,536 km (0.084 R)
• M27: 54,835,997 km (0.094 R)
• M28: 55,961,123 km (0.056 R)
• M29: 56,339,456 km (0.113 R)
• M30: 61,014,988 km (0.05 R)
• M31: 61,215,149 km (0.076 R)
• M32: 62,020,435 km (0.088 R)
• M33: 66,576,438 km (0.12 R)
• M34: 71,795,459 km (0.099 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: 201 - 10,356 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit