🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.64 AU - 0.78 AU

Year: 228 Days

Day: 16.2 Hours

Environment

Temp: 90 °C

Axial Tilt: 173.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.63 AU - 2.69 AU

Year: 1209 Days

Day: 42.7 Hours

Environment

Temp: -94 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.25 AU - 2.49 AU

Year: 1389 Days

Day: 23.3 Hours

Environment

Temp: -103 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.6

Radius: 12.5

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.49 AU - 5.73 AU

Year: 3769 Days

Day: 12 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,832,657 km

• M1: 155,432 km (0.079 R)
• M2: 561,291 km (0.03 R)
• M3: 1,090,120 km (0.096 R)
• M4: 1,688,062 km (0.059 R)
• M5: 2,130,722 km (0.11 R)
• M6: 2,528,354 km (0.034 R)
• M7: 3,166,538 km (0.089 R)
• M8: 3,971,674 km (0.041 R)
• M9: 4,766,637 km (0.072 R)
• M10: 5,798,114 km (0.118 R)
• M11: 6,613,722 km (0.115 R)
• M12: 7,126,543 km (0.082 R)
• M13: 8,404,109 km (0.075 R)
• M14: 9,152,398 km (0.117 R)
• M15: 10,022,459 km (0.09 R)
• M16: 11,030,001 km (0.109 R)
• M17: 12,506,980 km (0.074 R)
• M18: 12,919,272 km (0.095 R)
• M19: 13,965,111 km (0.093 R)
• M20: 14,359,301 km (0.112 R)
• M21: 15,903,750 km (0.067 R)
• M22: 16,606,411 km (0.118 R)
• M23: 18,660,539 km (0.102 R)
• M24: 19,078,815 km (0.079 R)
• M25: 21,853,107 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.6

Radius: 8.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.38 AU - 7.5 AU

Year: 6962 Days

Day: 14.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,832,657 km

• M1: 102,026 km (0.079 R)
• M2: 389,104 km (0.104 R)
• M3: 883,375 km (0.114 R)
• M4: 2,059,364 km (0.103 R)
• M5: 3,111,935 km (0.086 R)
• M6: 3,845,712 km (0.076 R)
• M7: 4,122,319 km (0.093 R)
• M8: 4,793,864 km (0.096 R)
• M9: 6,513,042 km (0.096 R)
• M10: 8,224,741 km (0.114 R)
• M11: 8,962,708 km (0.038 R)
• M12: 9,829,029 km (0.029 R)
• M13: 12,813,207 km (0.097 R)
• M14: 13,172,541 km (0.071 R)
• M15: 13,538,458 km (0.066 R)
• M16: 15,355,922 km (0.081 R)
• M17: 17,643,423 km (0.044 R)
• M18: 18,281,159 km (0.078 R)
• M19: 19,066,847 km (0.116 R)
• M20: 19,400,600 km (0.104 R)
• M21: 20,635,081 km (0.118 R)
• M22: 24,181,598 km (0.11 R)
• M23: 27,601,256 km (0.092 R)
• M24: 28,114,676 km (0.12 R)
• M25: 30,051,968 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.6

Radius: 14.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 6.45 AU - 9.03 AU

Year: 8200 Days

Day: 11.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,832,657 km

• M1: 186,848 km (0.1 R)
• M2: 739,911 km (0.099 R)
• M3: 1,576,462 km (0.115 R)
• M4: 4,290,766 km (0.102 R)
• M5: 5,367,721 km (0.096 R)
• M6: 6,470,258 km (0.036 R)
• M7: 7,114,725 km (0.119 R)
• M8: 9,262,801 km (0.037 R)
• M9: 11,004,270 km (0.116 R)
• M10: 11,980,845 km (0.077 R)
• M11: 13,982,315 km (0.112 R)
• M12: 18,564,497 km (0.048 R)
• M13: 22,236,078 km (0.092 R)
• M14: 23,268,154 km (0.105 R)
• M15: 25,243,294 km (0.062 R)
• M16: 26,366,625 km (0.104 R)
• M17: 28,914,426 km (0.1 R)
• M18: 33,259,646 km (0.085 R)
• M19: 41,524,330 km (0.086 R)
• M20: 45,100,018 km (0.114 R)
• M21: 45,921,610 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.3

Radius: 14.7

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.87 AU - 10.09 AU

Year: 9404 Days

Day: 10.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,832,657 km

• M1: 182,958 km (0.103 R)
• M2: 889,509 km (0.034 R)
• M3: 1,441,675 km (0.077 R)
• M4: 2,173,059 km (0.097 R)
• M5: 2,798,677 km (0.093 R)
• M6: 3,258,092 km (0.073 R)
• M7: 3,923,803 km (0.108 R)
• M8: 4,859,836 km (0.042 R)
• M9: 7,417,661 km (0.059 R)
• M10: 8,486,238 km (0.089 R)
• M11: 10,304,301 km (0.109 R)
• M12: 12,956,821 km (0.092 R)
• M13: 18,875,212 km (0.111 R)
• M14: 20,051,201 km (0.038 R)
• M15: 20,698,212 km (0.111 R)
• M16: 21,526,386 km (0.09 R)
• M17: 25,624,170 km (0.115 R)
• M18: 26,773,232 km (0.096 R)
• M19: 27,756,688 km (0.076 R)
• M20: 31,497,832 km (0.094 R)
• M21: 33,376,183 km (0.106 R)
• M22: 34,746,349 km (0.054 R)
• M23: 35,328,285 km (0.086 R)
• M24: 38,707,701 km (0.092 R)
• M25: 39,207,508 km (0.051 R)
• M26: 40,219,986 km (0.102 R)
• M27: 40,861,611 km (0.058 R)
• M28: 44,445,079 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157

Radius: 12.2

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.57 AU - 9.81 AU

Year: 10609 Days

Day: 10.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,832,657 km

• M1: 154,834 km (0.068 R)
• M2: 576,700 km (0.104 R)
• M3: 1,155,943 km (0.085 R)
• M4: 1,556,416 km (0.099 R)
• M5: 1,966,614 km (0.12 R)
• M6: 3,446,885 km (0.104 R)
• M7: 4,853,254 km (0.107 R)
• M8: 6,611,777 km (0.059 R)
• M9: 10,972,405 km (0.076 R)
• M10: 12,256,404 km (0.114 R)
• M11: 13,374,648 km (0.099 R)
• M12: 14,012,533 km (0.07 R)
• M13: 14,449,060 km (0.031 R)
• M14: 19,530,600 km (0.113 R)
• M15: 20,701,204 km (0.111 R)
• M16: 24,968,932 km (0.029 R)
• M17: 26,762,311 km (0.076 R)
• M18: 27,265,858 km (0.084 R)
• M19: 29,078,685 km (0.084 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.7

Radius: 12

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 7.65 AU - 10.79 AU

Year: 10661 Days

Day: 8.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,832,657 km

• M1: 149,299 km (0.108 R)
• M2: 1,018,911 km (0.096 R)
• M3: 1,946,717 km (0.111 R)
• M4: 3,492,811 km (0.054 R)
• M5: 4,334,000 km (0.094 R)
• M6: 4,772,621 km (0.105 R)
• M7: 5,502,958 km (0.104 R)
• M8: 6,566,150 km (0.076 R)
• M9: 7,067,452 km (0.039 R)
• M10: 7,761,586 km (0.102 R)
• M11: 9,096,897 km (0.039 R)
• M12: 9,770,087 km (0.061 R)
• M13: 10,579,861 km (0.116 R)
• M14: 13,218,617 km (0.102 R)
• M15: 13,831,969 km (0.069 R)
• M16: 14,722,674 km (0.038 R)
• M17: 17,772,077 km (0.116 R)
• M18: 19,601,659 km (0.103 R)
• M19: 21,136,683 km (0.073 R)
• M20: 22,490,245 km (0.105 R)
• M21: 24,536,295 km (0.104 R)
• M22: 25,746,093 km (0.061 R)
• M23: 27,387,630 km (0.066 R)
• M24: 28,183,940 km (0.116 R)
• M25: 28,587,704 km (0.09 R)
• M26: 28,995,508 km (0.11 R)
• M27: 31,959,042 km (0.115 R)
• M28: 32,730,369 km (0.06 R)
• M29: 34,081,537 km (0.08 R)
• M30: 37,743,692 km (0.1 R)
• M31: 38,605,526 km (0.047 R)
• M32: 41,399,715 km (0.071 R)
• M33: 41,790,913 km (0.116 R)
• M34: 43,919,242 km (0.053 R)
• M35: 47,245,700 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.3

Radius: 7.7

Gravity: 15.17 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 11.67 AU - 12.85 AU

Year: 16347 Days

Day: 17.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,832,657 km

• M1: 95,743 km (0.103 R)
• M2: 459,415 km (0.086 R)
• M3: 849,267 km (0.103 R)
• M4: 1,232,238 km (0.098 R)
• M5: 2,904,443 km (0.103 R)
• M6: 3,461,096 km (0.066 R)
• M7: 3,962,249 km (0.11 R)
• M8: 4,214,322 km (0.07 R)
• M9: 4,821,091 km (0.117 R)
• M10: 5,679,483 km (0.113 R)
• M11: 11,422,396 km (0.092 R)
• M12: 12,869,456 km (0.092 R)
• M13: 13,637,192 km (0.069 R)
• M14: 14,141,337 km (0.096 R)
• M15: 14,883,043 km (0.094 R)
• M16: 15,728,571 km (0.065 R)
• M17: 24,725,087 km (0.12 R)
• M18: 27,244,615 km (0.098 R)
• M19: 29,451,183 km (0.074 R)
• M20: 29,930,495 km (0.11 R)
• M21: 34,613,207 km (0.116 R)
• M22: 36,230,959 km (0.032 R)
• M23: 40,494,797 km (0.111 R)
• M24: 43,826,043 km (0.097 R)
• M25: 44,923,193 km (0.036 R)
• M26: 47,499,418 km (0.109 R)
• M27: 49,495,054 km (0.063 R)
• M28: 50,342,975 km (0.115 R)
• M29: 55,452,041 km (0.026 R)
• M30: 60,896,356 km (0.061 R)
• M31: 62,458,607 km (0.029 R)
• M32: 65,053,980 km (0.045 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 10,312 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit