🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.48 AU - 0.68 AU

Year: 154 Days

Day: 47.6 Hours

Environment

Temp: 200 °C

Axial Tilt: 29.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 35,380,807 km

• M1: 111,151 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.69 AU - 2.17 AU

Year: 934 Days

Day: 27.6 Hours

Environment

Temp: -41 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,380,807 km

• M1: 59,540 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.48 AU - 2.38 AU

Year: 934 Days

Day: 30.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.46 AU - 4.5 AU

Year: 2765 Days

Day: 42.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,380,807 km

• M1: 619,634 km (0.111 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.2 AU - 5.7 AU

Year: 4431 Days

Day: 30 Hours

Environment

Temp: -129 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.9

Radius: 9.2

Gravity: 11.29 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 6.01 AU - 8.63 AU

Year: 6897 Days

Day: 13.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,380,807 km

• M1: 114,442 km (0.035 R)
• M2: 517,309 km (0.119 R)
• M3: 805,884 km (0.096 R)
• M4: 1,152,652 km (0.048 R)
• M5: 1,871,769 km (0.097 R)
• M6: 2,175,602 km (0.053 R)
• M7: 3,429,830 km (0.109 R)
• M8: 3,838,681 km (0.102 R)
• M9: 6,499,728 km (0.081 R)
• M10: 7,918,365 km (0.072 R)
• M11: 9,257,116 km (0.111 R)
• M12: 12,157,221 km (0.036 R)
• M13: 15,484,726 km (0.054 R)
• M14: 17,287,231 km (0.114 R)
• M15: 23,105,840 km (0.088 R)
• M16: 26,268,937 km (0.03 R)
• M17: 27,953,709 km (0.096 R)
• M18: 37,353,840 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.8

Radius: 10.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 9.3 AU - 10.74 AU

Year: 11046 Days

Day: 7.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 35,380,807 km

• M1: 128,056 km (0.116 R)
• M2: 464,950 km (0.086 R)
• M3: 1,064,688 km (0.072 R)
• M4: 1,478,177 km (0.118 R)
• M5: 1,917,097 km (0.112 R)
• M6: 2,822,613 km (0.051 R)
• M7: 3,553,847 km (0.041 R)
• M8: 4,610,606 km (0.095 R)
• M9: 5,037,260 km (0.12 R)
• M10: 5,934,847 km (0.092 R)
• M11: 6,403,387 km (0.119 R)
• M12: 6,974,702 km (0.12 R)
• M13: 7,333,587 km (0.096 R)
• M14: 8,620,129 km (0.028 R)
• M15: 9,460,869 km (0.069 R)
• M16: 12,661,216 km (0.117 R)
• M17: 13,136,339 km (0.105 R)
• M18: 14,828,291 km (0.079 R)
• M19: 17,016,309 km (0.087 R)
• M20: 18,412,805 km (0.077 R)
• M21: 18,792,634 km (0.098 R)
• M22: 21,516,063 km (0.119 R)
• M23: 22,623,686 km (0.056 R)
• M24: 23,323,804 km (0.042 R)
• M25: 23,768,708 km (0.118 R)
• M26: 24,310,103 km (0.097 R)
• M27: 31,898,156 km (0.061 R)
• M28: 40,927,584 km (0.077 R)
• M29: 44,916,162 km (0.115 R)
• M30: 45,466,832 km (0.084 R)
• M31: 46,863,179 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442

Radius: 13.8

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 9.39 AU - 12.37 AU

Year: 12498 Days

Day: 12 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,380,807 km

• M1: 171,888 km (0.087 R)
• M2: 875,896 km (0.035 R)
• M3: 1,363,884 km (0.041 R)
• M4: 1,815,520 km (0.103 R)
• M5: 3,236,400 km (0.069 R)
• M6: 4,059,189 km (0.084 R)
• M7: 5,336,156 km (0.119 R)
• M8: 6,750,754 km (0.087 R)
• M9: 7,712,069 km (0.059 R)
• M10: 8,358,033 km (0.071 R)
• M11: 9,514,873 km (0.116 R)
• M12: 10,463,473 km (0.075 R)
• M13: 11,806,713 km (0.101 R)
• M14: 12,259,994 km (0.112 R)
• M15: 12,902,218 km (0.116 R)
• M16: 16,667,297 km (0.076 R)
• M17: 20,862,620 km (0.083 R)
• M18: 24,232,761 km (0.093 R)
• M19: 25,904,367 km (0.091 R)
• M20: 26,478,374 km (0.106 R)
• M21: 26,963,071 km (0.045 R)
• M22: 28,050,498 km (0.081 R)
• M23: 31,272,238 km (0.107 R)
• M24: 41,880,223 km (0.049 R)
• M25: 46,214,971 km (0.072 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.9

Radius: 12.4

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 11.03 AU - 11.55 AU

Year: 13211 Days

Day: 11 Hours

Environment

Temp: -169 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,380,807 km

• M1: 154,385 km (0.069 R)
• M2: 808,576 km (0.1 R)
• M3: 3,042,521 km (0.091 R)
• M4: 4,937,777 km (0.053 R)
• M5: 10,020,215 km (0.101 R)
• M6: 10,847,491 km (0.05 R)
• M7: 11,252,153 km (0.086 R)
• M8: 14,556,920 km (0.118 R)
• M9: 22,273,178 km (0.106 R)
• M10: 22,681,281 km (0.077 R)
• M11: 28,070,694 km (0.03 R)
• M12: 28,643,056 km (0.078 R)
• M13: 35,131,265 km (0.117 R)
• M14: 37,265,278 km (0.107 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.9

Radius: 14.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 11.22 AU - 11.96 AU

Year: 13741 Days

Day: 7.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,380,807 km

• M1: 184,903 km (0.07 R)
• M2: 659,727 km (0.113 R)
• M3: 1,279,361 km (0.066 R)
• M4: 1,740,721 km (0.069 R)
• M5: 2,997,493 km (0.077 R)
• M6: 4,269,972 km (0.059 R)
• M7: 6,528,152 km (0.065 R)
• M8: 8,013,060 km (0.066 R)
• M9: 9,149,855 km (0.056 R)
• M10: 11,101,808 km (0.092 R)
• M11: 12,098,728 km (0.081 R)
• M12: 12,671,987 km (0.086 R)
• M13: 13,873,108 km (0.08 R)
• M14: 21,645,166 km (0.095 R)
• M15: 25,078,886 km (0.094 R)
• M16: 25,841,087 km (0.107 R)
• M17: 27,679,795 km (0.058 R)
• M18: 34,542,747 km (0.092 R)

Kuiper Belt

Range: 31.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 16,938 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit