🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.4

Radius: 9.4

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.49 AU - 0.73 AU

Year: 323 Days

Day: 10.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,201,250 km

• M1: 116,836 km (0.113 R)
• M2: 412,292 km (0.078 R)
• M3: 719,117 km (0.09 R)
• M4: 1,015,919 km (0.045 R)
• M5: 1,327,980 km (0.107 R)
• M6: 1,752,838 km (0.117 R)
• M7: 2,051,735 km (0.075 R)
• M8: 2,359,158 km (0.071 R)
• M9: 2,957,849 km (0.11 R)
• M10: 3,507,023 km (0.056 R)
• M11: 3,913,779 km (0.097 R)
• M12: 4,430,341 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.5

Radius: 10.3

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.89 AU - 1.09 AU

Year: 668 Days

Day: 9.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,201,250 km

• M1: 132,394 km (0.104 R)
• M2: 694,733 km (0.103 R)
• M3: 1,129,314 km (0.096 R)
• M4: 1,581,549 km (0.034 R)
• M5: 1,932,655 km (0.03 R)
• M6: 2,256,235 km (0.104 R)
• M7: 3,418,910 km (0.098 R)
• M8: 4,000,546 km (0.065 R)
• M9: 4,748,984 km (0.097 R)
• M10: 5,298,158 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.9

Radius: 13.2

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.14 AU - 1.6 AU

Year: 1088 Days

Day: 14.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,201,250 km

• M1: 164,109 km (0.052 R)
• M2: 632,051 km (0.044 R)
• M3: 1,149,061 km (0.1 R)
• M4: 1,560,306 km (0.028 R)
• M5: 2,051,884 km (0.051 R)
• M6: 2,550,195 km (0.083 R)
• M7: 3,428,933 km (0.084 R)
• M8: 4,205,196 km (0.089 R)
• M9: 5,412,301 km (0.105 R)
• M10: 5,998,875 km (0.113 R)
• M11: 6,489,107 km (0.115 R)
• M12: 6,958,096 km (0.117 R)
• M13: 7,474,807 km (0.073 R)
• M14: 8,585,571 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.4

Radius: 11

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.21 AU - 3.59 AU

Year: 4252 Days

Day: 12.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,201,250 km

• M1: 144,212 km (0.084 R)
• M2: 498,460 km (0.028 R)
• M3: 878,289 km (0.08 R)
• M4: 1,510,490 km (0.118 R)
• M5: 2,227,662 km (0.045 R)
• M6: 2,946,031 km (0.093 R)
• M7: 3,585,113 km (0.03 R)
• M8: 4,369,006 km (0.12 R)
• M9: 4,782,494 km (0.059 R)
• M10: 6,656,956 km (0.095 R)
• M11: 7,387,292 km (0.085 R)
• M12: 8,741,752 km (0.099 R)
• M13: 9,774,575 km (0.117 R)
• M14: 12,154,528 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.1

Radius: 8.8

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.81 AU - 4.45 AU

Year: 4691 Days

Day: 6.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,201,250 km

• M1: 109,506 km (0.082 R)
• M2: 556,504 km (0.111 R)
• M3: 1,218,475 km (0.112 R)
• M4: 1,569,581 km (0.108 R)
• M5: 2,644,890 km (0.03 R)
• M6: 2,932,268 km (0.093 R)
• M7: 3,842,721 km (0.1 R)
• M8: 4,170,639 km (0.098 R)
• M9: 4,495,117 km (0.114 R)
• M10: 5,001,655 km (0.049 R)
• M11: 5,545,593 km (0.114 R)
• M12: 6,073,823 km (0.107 R)
• M13: 6,869,385 km (0.098 R)
• M14: 7,447,730 km (0.096 R)
• M15: 7,894,280 km (0.103 R)
• M16: 8,528,724 km (0.11 R)
• M17: 9,053,364 km (0.114 R)
• M18: 10,361,149 km (0.047 R)
• M19: 11,286,561 km (0.098 R)
• M20: 12,441,905 km (0.112 R)
• M21: 13,116,891 km (0.104 R)
• M22: 13,674,293 km (0.102 R)
• M23: 14,442,029 km (0.114 R)
• M24: 15,492,655 km (0.091 R)
• M25: 17,135,838 km (0.11 R)
• M26: 17,578,049 km (0.104 R)
• M27: 19,304,558 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.8

Radius: 12.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.95 AU - 4.51 AU

Year: 5901 Days

Day: 14 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,201,250 km

• M1: 151,842 km (0.066 R)
• M2: 567,874 km (0.077 R)
• M3: 1,339,499 km (0.108 R)
• M4: 2,575,627 km (0.116 R)
• M5: 3,608,301 km (0.108 R)
• M6: 5,947,563 km (0.107 R)
• M7: 6,802,963 km (0.076 R)
• M8: 7,994,809 km (0.082 R)
• M9: 8,601,728 km (0.108 R)
• M10: 10,564,003 km (0.097 R)
• M11: 11,063,361 km (0.095 R)
• M12: 12,606,164 km (0.076 R)
• M13: 15,937,260 km (0.115 R)
• M14: 16,655,629 km (0.083 R)
• M15: 20,575,542 km (0.094 R)
• M16: 21,499,458 km (0.088 R)
• M17: 24,595,087 km (0.116 R)
• M18: 26,788,790 km (0.049 R)
• M19: 28,495,851 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61

Radius: 7.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 5.58 AU - 5.72 AU

Year: 9109 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,201,250 km

• M1: 90,806 km (0.071 R)
• M2: 364,121 km (0.096 R)
• M3: 927,357 km (0.113 R)
• M4: 1,532,181 km (0.109 R)
• M5: 1,915,302 km (0.041 R)
• M6: 2,432,013 km (0.06 R)
• M7: 2,857,768 km (0.088 R)
• M8: 3,331,993 km (0.118 R)
• M9: 3,569,555 km (0.114 R)
• M10: 5,589,575 km (0.12 R)
• M11: 7,106,796 km (0.075 R)
• M12: 7,752,610 km (0.118 R)
• M13: 9,267,438 km (0.087 R)
• M14: 12,737,810 km (0.067 R)
• M15: 13,049,871 km (0.099 R)
• M16: 14,349,428 km (0.07 R)
• M17: 16,881,073 km (0.099 R)
• M18: 18,421,631 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.2

Radius: 4.3

Gravity: 31.76 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.8 AU - 10.84 AU

Year: 20872 Days

Day: 21.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,201,250 km

• M1: 66,571 km (0.105 R)
• M2: 275,410 km (0.107 R)
• M3: 547,229 km (0.068 R)
• M4: 1,106,725 km (0.105 R)
• M5: 1,344,586 km (0.105 R)
• M6: 2,267,305 km (0.086 R)
• M7: 2,420,643 km (0.101 R)
• M8: 2,797,480 km (0.052 R)
• M9: 2,974,305 km (0.092 R)
• M10: 6,426,874 km (0.04 R)
• M11: 6,690,615 km (0.062 R)
• M12: 7,007,314 km (0.099 R)
• M13: 7,477,051 km (0.073 R)
• M14: 8,118,676 km (0.093 R)
• M15: 9,342,537 km (0.098 R)
• M16: 9,969,053 km (0.065 R)
• M17: 11,432,868 km (0.104 R)
• M18: 12,349,753 km (0.069 R)
• M19: 13,456,478 km (0.111 R)
• M20: 14,477,783 km (0.088 R)
• M21: 15,944,889 km (0.099 R)
• M22: 16,673,281 km (0.116 R)
• M23: 17,003,892 km (0.057 R)
• M24: 18,283,253 km (0.034 R)
• M25: 18,546,546 km (0.119 R)
• M26: 23,111,674 km (0.066 R)
• M27: 24,043,519 km (0.107 R)
• M28: 30,166,411 km (0.116 R)
• M29: 37,958,665 km (0.084 R)
• M30: 44,730,661 km (0.051 R)
• M31: 45,368,845 km (0.074 R)
• M32: 45,690,331 km (0.113 R)
• M33: 48,819,620 km (0.103 R)
• M34: 54,226,835 km (0.042 R)
• M35: 60,019,863 km (0.095 R)
• M36: 65,799,875 km (0.109 R)
• M37: 70,209,572 km (0.07 R)
• M38: 73,477,238 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 366.9

Radius: 3.5

Gravity: 29.95 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 8.65 AU - 12.11 AU

Year: 22682 Days

Day: 19.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,201,250 km

• M1: 43,533 km (0.092 R)
• M2: 284,086 km (0.108 R)
• M3: 422,315 km (0.079 R)
• M4: 893,099 km (0.04 R)
• M5: 3,556,839 km (0.112 R)
• M6: 4,672,091 km (0.047 R)
• M7: 5,019,158 km (0.119 R)
• M8: 6,082,051 km (0.114 R)
• M9: 8,337,837 km (0.11 R)
• M10: 8,539,346 km (0.044 R)
• M11: 12,220,650 km (0.106 R)
• M12: 14,405,078 km (0.103 R)
• M13: 16,282,531 km (0.093 R)
• M14: 16,916,228 km (0.104 R)
• M15: 30,346,227 km (0.111 R)
• M16: 38,721,763 km (0.106 R)
• M17: 40,133,219 km (0.047 R)
• M18: 40,707,226 km (0.11 R)
• M19: 47,228,197 km (0.111 R)
• M20: 48,838,469 km (0.116 R)
• M21: 50,651,595 km (0.08 R)
• M22: 52,851,731 km (0.055 R)
• M23: 53,888,295 km (0.08 R)
• M24: 56,898,653 km (0.108 R)
• M25: 65,999,589 km (0.106 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: 172 - 17,736 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit