🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.52 AU - 0.72 AU

Year: 173 Days

Day: 14 Hours

Environment

Temp: 236 °C

Axial Tilt: 5.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.77 AU - 0.83 AU

Year: 254 Days

Day: 22.9 Hours

Environment

Temp: 139 °C

Axial Tilt: 2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,647,683 km

• M1: 35,754 km (0.044 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.03 AU - 1.03 AU

Year: 371 Days

Day: 20.9 Hours

Environment

Temp: 78 °C

Axial Tilt: 25.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.07 AU - 1.37 AU

Year: 478 Days

Day: 35.6 Hours

Environment

Temp: 23 °C

Axial Tilt: 12.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.2 AU - 5 AU

Year: 2945 Days

Day: 17.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,647,683 km

• M1: 2,485,569 km (0.092 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.17 AU - 5.39 AU

Year: 3707 Days

Day: 25.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,647,683 km

• M1: 43,084 km (0.095 R)

Asteroid Belt

Center: 5.35 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 8.6

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.28 AU - 6.54 AU

Year: 5097 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,647,683 km

• M1: 107,411 km (0.083 R)
• M2: 407,355 km (0.051 R)
• M3: 870,660 km (0.032 R)
• M4: 2,116,361 km (0.084 R)
• M5: 2,717,146 km (0.102 R)
• M6: 3,238,943 km (0.036 R)
• M7: 3,972,871 km (0.083 R)
• M8: 4,300,340 km (0.091 R)
• M9: 5,989,300 km (0.119 R)
• M10: 6,904,091 km (0.079 R)
• M11: 7,443,840 km (0.08 R)
• M12: 7,774,302 km (0.052 R)
• M13: 8,045,673 km (0.083 R)
• M14: 8,429,092 km (0.102 R)
• M15: 8,934,882 km (0.119 R)
• M16: 10,247,305 km (0.118 R)
• M17: 12,358,579 km (0.036 R)
• M18: 13,202,162 km (0.089 R)
• M19: 14,335,216 km (0.059 R)
• M20: 14,795,828 km (0.093 R)
• M21: 15,372,079 km (0.067 R)
• M22: 18,843,348 km (0.102 R)
• M23: 19,896,666 km (0.093 R)
• M24: 20,793,057 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.3

Radius: 14.2

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 8.84 AU - 10.52 AU

Year: 10684 Days

Day: 11.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,647,683 km

• M1: 176,675 km (0.078 R)
• M2: 682,914 km (0.062 R)
• M3: 1,178,532 km (0.11 R)
• M4: 1,662,481 km (0.077 R)
• M5: 2,422,887 km (0.106 R)
• M6: 2,905,490 km (0.076 R)
• M7: 3,406,493 km (0.086 R)
• M8: 4,585,025 km (0.06 R)
• M9: 5,918,391 km (0.073 R)
• M10: 6,879,408 km (0.086 R)
• M11: 7,417,511 km (0.092 R)
• M12: 7,942,151 km (0.025 R)
• M13: 10,001,366 km (0.078 R)
• M14: 10,744,119 km (0.116 R)
• M15: 17,930,801 km (0.067 R)
• M16: 21,598,791 km (0.094 R)
• M17: 22,090,070 km (0.107 R)
• M18: 22,672,455 km (0.091 R)
• M19: 24,217,502 km (0.091 R)
• M20: 25,557,749 km (0.114 R)
• M21: 26,199,823 km (0.092 R)
• M22: 27,135,857 km (0.085 R)
• M23: 28,483,584 km (0.105 R)
• M24: 29,473,324 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.9

Radius: 13.9

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 10.64 AU - 12.34 AU

Year: 13817 Days

Day: 5.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,647,683 km

• M1: 172,935 km (0.082 R)
• M2: 1,454,989 km (0.088 R)
• M3: 2,572,784 km (0.119 R)
• M4: 3,191,072 km (0.12 R)
• M5: 4,102,572 km (0.104 R)
• M6: 4,647,108 km (0.071 R)
• M7: 5,946,665 km (0.072 R)
• M8: 7,107,395 km (0.081 R)
• M9: 7,896,673 km (0.066 R)
• M10: 8,911,695 km (0.102 R)
• M11: 11,250,508 km (0.118 R)
• M12: 11,804,319 km (0.1 R)
• M13: 18,320,054 km (0.029 R)
• M14: 20,464,091 km (0.101 R)
• M15: 24,905,951 km (0.113 R)
• M16: 29,857,192 km (0.106 R)
• M17: 31,215,092 km (0.112 R)
• M18: 31,709,961 km (0.097 R)
• M19: 33,534,756 km (0.108 R)
• M20: 34,262,999 km (0.116 R)
• M21: 34,895,648 km (0.106 R)
• M22: 35,859,058 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.7

Radius: 4.4

Gravity: 21.47 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 15.19 AU - 20.71 AU

Year: 26980 Days

Day: 19 Hours

Environment

Temp: -201 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 78,647,683 km

• M1: 54,753 km (0.112 R)
• M2: 193,879 km (0.072 R)
• M3: 938,128 km (0.106 R)
• M4: 1,533,977 km (0.099 R)
• M5: 1,689,259 km (0.09 R)
• M6: 2,011,493 km (0.092 R)
• M7: 2,284,659 km (0.115 R)
• M8: 2,777,584 km (0.091 R)
• M9: 4,367,211 km (0.119 R)
• M10: 6,003,213 km (0.109 R)
• M11: 6,303,456 km (0.1 R)
• M12: 7,121,457 km (0.119 R)
• M13: 7,360,664 km (0.11 R)
• M14: 7,555,889 km (0.063 R)
• M15: 8,800,843 km (0.081 R)
• M16: 9,644,874 km (0.083 R)
• M17: 10,852,428 km (0.058 R)
• M18: 13,783,050 km (0.051 R)
• M19: 16,693,477 km (0.081 R)
• M20: 22,547,391 km (0.073 R)
• M21: 23,692,563 km (0.049 R)
• M22: 24,011,505 km (0.096 R)
• M23: 25,205,596 km (0.096 R)
• M24: 27,828,944 km (0.061 R)
• M25: 29,024,231 km (0.057 R)
• M26: 36,780,282 km (0.107 R)
• M27: 38,657,137 km (0.101 R)
• M28: 41,822,179 km (0.086 R)
• M29: 41,977,163 km (0.079 R)
• M30: 45,318,730 km (0.079 R)
• M31: 48,150,468 km (0.04 R)
• M32: 48,833,532 km (0.057 R)
• M33: 51,274,820 km (0.119 R)
• M34: 52,525,608 km (0.108 R)
• M35: 53,979,699 km (0.118 R)
• M36: 59,280,101 km (0.073 R)
• M37: 63,271,522 km (0.048 R)
• M38: 75,622,172 km (0.07 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 19,626 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit