🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625

Radius: 10.7

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.75 AU - 0.95 AU

Year: 551 Days

Day: 10.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,001,329 km

• M1: 135,685 km (0.036 R)
• M2: 472,729 km (0.109 R)
• M3: 1,433,746 km (0.088 R)
• M4: 1,782,758 km (0.047 R)
• M5: 3,052,096 km (0.08 R)
• M6: 3,770,764 km (0.084 R)
• M7: 4,127,854 km (0.065 R)
• M8: 5,970,152 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.6

Radius: 13.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.83 AU - 0.93 AU

Year: 580 Days

Day: 11.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,001,329 km

• M1: 167,849 km (0.107 R)
• M2: 703,110 km (0.106 R)
• M3: 1,246,001 km (0.096 R)
• M4: 1,687,165 km (0.097 R)
• M5: 2,118,007 km (0.104 R)
• M6: 2,890,380 km (0.081 R)
• M7: 3,528,116 km (0.069 R)
• M8: 5,179,377 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.2

Radius: 10.8

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.89 AU - 1.21 AU

Year: 756 Days

Day: 13.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 71,001,329 km

• M1: 134,339 km (0.117 R)
• M2: 709,991 km (0.116 R)
• M3: 2,043,956 km (0.095 R)
• M4: 2,990,461 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 12.3

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.45 AU - 1.83 AU

Year: 1476 Days

Day: 9.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,001,329 km

• M1: 153,039 km (0.12 R)
• M2: 682,465 km (0.098 R)
• M3: 1,183,319 km (0.118 R)
• M4: 1,586,934 km (0.084 R)
• M5: 2,346,293 km (0.086 R)
• M6: 3,497,000 km (0.057 R)
• M7: 4,663,714 km (0.088 R)
• M8: 5,606,180 km (0.083 R)
• M9: 6,393,065 km (0.099 R)
• M10: 7,389,088 km (0.114 R)
• M11: 8,216,663 km (0.088 R)
• M12: 8,947,449 km (0.101 R)
• M13: 9,787,590 km (0.072 R)
• M14: 12,864,220 km (0.06 R)
• M15: 14,019,116 km (0.075 R)
• M16: 14,534,630 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430

Radius: 11.6

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.51 AU - 2.23 AU

Year: 1798 Days

Day: 13.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,001,329 km

• M1: 145,559 km (0.093 R)
• M2: 600,486 km (0.1 R)
• M3: 1,009,486 km (0.104 R)
• M4: 1,674,449 km (0.09 R)
• M5: 2,214,048 km (0.086 R)
• M6: 2,640,552 km (0.07 R)
• M7: 3,330,797 km (0.106 R)
• M8: 4,191,284 km (0.05 R)
• M9: 4,712,782 km (0.085 R)
• M10: 6,115,411 km (0.111 R)
• M11: 6,566,599 km (0.039 R)
• M12: 7,116,820 km (0.071 R)
• M13: 9,505,897 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.5

Radius: 14.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.75 AU - 4.57 AU

Year: 4922 Days

Day: 13.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,001,329 km

• M1: 185,352 km (0.109 R)
• M2: 694,733 km (0.102 R)
• M3: 1,184,666 km (0.096 R)
• M4: 1,941,631 km (0.114 R)
• M5: 4,069,062 km (0.059 R)
• M6: 5,316,708 km (0.078 R)
• M7: 6,253,191 km (0.117 R)
• M8: 8,807,126 km (0.114 R)
• M9: 10,079,605 km (0.112 R)
• M10: 13,364,176 km (0.108 R)
• M11: 15,879,365 km (0.116 R)
• M12: 19,848,795 km (0.095 R)
• M13: 21,177,523 km (0.101 R)
• M14: 22,362,937 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.3

Radius: 3.5

Gravity: 13.25 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 5.61 AU - 7.59 AU

Year: 11919 Days

Day: 24.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,001,329 km

• M1: 86,617 km (0.087 R)
• M2: 228,137 km (0.103 R)
• M3: 388,506 km (0.039 R)
• M4: 790,326 km (0.113 R)
• M5: 1,155,195 km (0.054 R)
• M6: 1,545,944 km (0.1 R)
• M7: 2,126,983 km (0.098 R)
• M8: 4,082,227 km (0.072 R)
• M9: 4,357,487 km (0.107 R)
• M10: 5,404,223 km (0.114 R)
• M11: 6,113,317 km (0.106 R)
• M12: 6,308,093 km (0.068 R)
• M13: 7,490,665 km (0.054 R)
• M14: 8,056,593 km (0.056 R)
• M15: 8,330,208 km (0.094 R)
• M16: 16,089,700 km (0.117 R)
• M17: 19,569,047 km (0.044 R)
• M18: 20,710,329 km (0.092 R)
• M19: 23,915,763 km (0.106 R)
• M20: 31,001,616 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 705.1

Radius: 5.1

Gravity: 27.11 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.88 AU - 7.4 AU

Year: 13411 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,001,329 km

• M1: 63,579 km (0.076 R)
• M2: 286,630 km (0.114 R)
• M3: 479,611 km (0.109 R)
• M4: 816,655 km (0.081 R)
• M5: 1,084,884 km (0.11 R)
• M6: 1,259,614 km (0.064 R)
• M7: 1,438,832 km (0.082 R)
• M8: 1,748,051 km (0.111 R)
• M9: 1,918,593 km (0.106 R)
• M10: 2,195,498 km (0.1 R)
• M11: 2,649,528 km (0.086 R)
• M12: 2,875,570 km (0.072 R)
• M13: 3,041,474 km (0.095 R)
• M14: 3,659,314 km (0.11 R)
• M15: 3,940,109 km (0.085 R)
• M16: 5,314,464 km (0.041 R)
• M17: 6,089,830 km (0.102 R)
• M18: 7,770,861 km (0.077 R)
• M19: 8,668,449 km (0.071 R)
• M20: 9,269,832 km (0.09 R)
• M21: 12,447,740 km (0.069 R)
• M22: 16,358,826 km (0.119 R)
• M23: 17,667,060 km (0.104 R)
• M24: 18,306,142 km (0.109 R)
• M25: 19,043,360 km (0.087 R)
• M26: 19,885,596 km (0.116 R)
• M27: 20,229,222 km (0.064 R)
• M28: 21,017,154 km (0.101 R)
• M29: 27,219,183 km (0.113 R)
• M30: 27,749,507 km (0.063 R)
• M31: 28,940,456 km (0.098 R)
• M32: 36,042,166 km (0.112 R)
• M33: 37,851,552 km (0.047 R)
• M34: 41,930,937 km (0.078 R)
• M35: 43,209,550 km (0.07 R)
• M36: 48,584,601 km (0.088 R)
• M37: 53,556,038 km (0.097 R)
• M38: 56,937,099 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.5

Radius: 3.7

Gravity: 64.24 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.54 AU - 10.48 AU

Year: 17450 Days

Day: 21.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,001,329 km

• M1: 46,974 km (0.119 R)
• M2: 244,293 km (0.092 R)
• M3: 796,010 km (0.108 R)
• M4: 1,312,123 km (0.091 R)
• M5: 3,281,579 km (0.111 R)
• M6: 7,201,641 km (0.109 R)
• M7: 9,422,871 km (0.112 R)
• M8: 9,939,432 km (0.112 R)
• M9: 10,535,131 km (0.052 R)
• M10: 12,262,388 km (0.073 R)
• M11: 15,703,288 km (0.096 R)
• M12: 16,757,654 km (0.094 R)
• M13: 18,647,823 km (0.092 R)
• M14: 18,826,443 km (0.093 R)
• M15: 20,014,998 km (0.104 R)
• M16: 20,390,639 km (0.11 R)
• M17: 22,339,300 km (0.107 R)
• M18: 24,090,493 km (0.108 R)
• M19: 25,820,144 km (0.091 R)
• M20: 43,666,122 km (0.092 R)
• M21: 47,048,979 km (0.111 R)
• M22: 50,256,507 km (0.066 R)
• M23: 55,982,814 km (0.076 R)
• M24: 59,002,447 km (0.074 R)
• M25: 66,605,161 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427.1

Radius: 4.8

Gravity: 18.54 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.13 AU - 11.23 AU

Year: 22831 Days

Day: 20 Hours

Environment

Temp: -236 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,001,329 km

• M1: 89,609 km (0.055 R)
• M2: 466,596 km (0.046 R)
• M3: 716,723 km (0.093 R)
• M4: 1,004,101 km (0.108 R)
• M5: 1,222,215 km (0.059 R)
• M6: 1,807,890 km (0.091 R)
• M7: 2,679,298 km (0.102 R)
• M8: 5,203,762 km (0.104 R)
• M9: 6,102,845 km (0.118 R)
• M10: 8,768,679 km (0.117 R)
• M11: 11,480,589 km (0.049 R)
• M12: 12,787,028 km (0.084 R)
• M13: 13,616,847 km (0.061 R)
• M14: 17,629,959 km (0.072 R)
• M15: 20,178,210 km (0.115 R)
• M16: 25,130,049 km (0.11 R)
• M17: 26,538,513 km (0.109 R)
• M18: 32,573,291 km (0.091 R)
• M19: 34,771,781 km (0.111 R)
• M20: 35,704,973 km (0.042 R)
• M21: 37,067,061 km (0.109 R)
• M22: 41,212,418 km (0.031 R)
• M23: 41,957,116 km (0.087 R)
• M24: 42,257,359 km (0.076 R)
• M25: 43,934,950 km (0.097 R)
• M26: 44,868,441 km (0.118 R)
• M27: 46,133,590 km (0.108 R)
• M28: 48,239,778 km (0.065 R)
• M29: 49,233,108 km (0.108 R)
• M30: 52,642,892 km (0.03 R)
• M31: 55,662,077 km (0.059 R)
• M32: 58,607,359 km (0.047 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 15,119 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit