🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.4

Radius: 13

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.47 AU - 0.67 AU

Year: 292 Days

Day: 12 Hours

Environment

Temp: -143 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,986,473 km

• M1: 161,715 km (0.097 R)
• M2: 572,960 km (0.115 R)
• M3: 988,393 km (0.119 R)
• M4: 1,566,589 km (0.077 R)
• M5: 1,976,038 km (0.084 R)
• M6: 2,427,076 km (0.071 R)
• M7: 2,834,132 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 13.3

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.63 AU - 0.71 AU

Year: 372 Days

Day: 9.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,986,473 km

• M1: 165,455 km (0.07 R)
• M2: 603,927 km (0.098 R)
• M3: 1,052,571 km (0.085 R)
• M4: 1,560,156 km (0.06 R)
• M5: 2,108,881 km (0.093 R)
• M6: 2,688,573 km (0.081 R)
• M7: 3,339,772 km (0.071 R)
• M8: 3,980,051 km (0.083 R)
• M9: 4,644,864 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996

Radius: 12.2

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.64 AU - 0.72 AU

Year: 380 Days

Day: 14 Hours

Environment

Temp: -153 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,986,473 km

• M1: 151,692 km (0.038 R)
• M2: 535,112 km (0.092 R)
• M3: 950,994 km (0.101 R)
• M4: 1,332,468 km (0.086 R)
• M5: 1,977,534 km (0.038 R)
• M6: 2,396,707 km (0.096 R)
• M7: 2,781,024 km (0.063 R)
• M8: 3,195,411 km (0.059 R)
• M9: 3,830,005 km (0.073 R)
• M10: 4,445,750 km (0.07 R)
• M11: 5,047,582 km (0.073 R)
• M12: 5,618,298 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.7

Radius: 13.2

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.74 AU - 0.78 AU

Year: 449 Days

Day: 14.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,986,473 km

• M1: 164,109 km (0.115 R)
• M2: 578,495 km (0.09 R)
• M3: 1,034,170 km (0.092 R)
• M4: 1,502,112 km (0.099 R)
• M5: 1,996,832 km (0.094 R)
• M6: 2,474,349 km (0.09 R)
• M7: 2,995,398 km (0.096 R)
• M8: 3,689,532 km (0.075 R)
• M9: 4,219,558 km (0.118 R)
• M10: 4,937,927 km (0.083 R)
• M11: 5,351,415 km (0.086 R)
• M12: 5,770,887 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.8

Radius: 11.7

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.89 AU - 1.29 AU

Year: 772 Days

Day: 8.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,986,473 km

• M1: 148,551 km (0.072 R)
• M2: 516,262 km (0.095 R)
• M3: 884,572 km (0.055 R)
• M4: 1,755,531 km (0.081 R)
• M5: 2,173,358 km (0.076 R)
• M6: 2,639,804 km (0.108 R)
• M7: 3,050,450 km (0.086 R)
• M8: 3,416,217 km (0.095 R)
• M9: 4,455,623 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.9

Radius: 11.5

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.24 AU - 2.77 AU

Year: 2681 Days

Day: 10.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,986,473 km

• M1: 143,016 km (0.108 R)
• M2: 611,107 km (0.09 R)
• M3: 1,080,994 km (0.095 R)
• M4: 1,745,508 km (0.058 R)
• M5: 2,259,377 km (0.11 R)
• M6: 2,636,214 km (0.11 R)
• M7: 3,141,106 km (0.12 R)
• M8: 3,632,835 km (0.101 R)
• M9: 4,050,362 km (0.071 R)
• M10: 4,433,782 km (0.108 R)
• M11: 4,888,260 km (0.119 R)
• M12: 5,628,470 km (0.113 R)
• M13: 6,053,029 km (0.114 R)
• M14: 6,498,831 km (0.077 R)
• M15: 8,574,950 km (0.036 R)
• M16: 9,466,254 km (0.08 R)
• M17: 10,378,951 km (0.113 R)
• M18: 12,335,092 km (0.103 R)
• M19: 12,826,222 km (0.063 R)
• M20: 13,752,831 km (0.09 R)
• M21: 14,773,089 km (0.028 R)
• M22: 17,183,709 km (0.111 R)
• M23: 21,147,454 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.7

Radius: 8.8

Gravity: 12.15 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.04 AU - 5.36 AU

Year: 6911 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 177.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 58,986,473 km

• M1: 109,506 km (0.111 R)
• M2: 441,763 km (0.086 R)
• M3: 774,169 km (0.088 R)
• M4: 1,060,948 km (0.1 R)
• M5: 1,358,947 km (0.085 R)
• M6: 2,516,984 km (0.101 R)
• M7: 3,121,360 km (0.079 R)
• M8: 4,561,089 km (0.087 R)
• M9: 5,086,477 km (0.11 R)
• M10: 5,717,182 km (0.109 R)
• M11: 6,469,958 km (0.058 R)
• M12: 6,870,432 km (0.109 R)
• M13: 8,683,708 km (0.057 R)
• M14: 12,658,224 km (0.086 R)
• M15: 13,933,546 km (0.105 R)
• M16: 16,805,226 km (0.12 R)
• M17: 18,998,780 km (0.116 R)
• M18: 19,820,970 km (0.056 R)
• M19: 20,202,444 km (0.061 R)
• M20: 21,138,030 km (0.053 R)
• M21: 22,020,807 km (0.112 R)
• M22: 22,595,262 km (0.091 R)
• M23: 26,437,385 km (0.068 R)
• M24: 27,556,227 km (0.041 R)
• M25: 30,390,059 km (0.112 R)
• M26: 33,627,956 km (0.08 R)
• M27: 37,435,970 km (0.108 R)
• M28: 41,273,903 km (0.028 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.3

Radius: 7.9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.19 AU - 7.27 AU

Year: 11842 Days

Day: 17.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,986,473 km

• M1: 98,585 km (0.04 R)
• M2: 442,062 km (0.09 R)
• M3: 1,330,374 km (0.112 R)
• M4: 1,808,489 km (0.117 R)
• M5: 2,500,379 km (0.111 R)
• M6: 4,907,259 km (0.102 R)
• M7: 7,240,537 km (0.087 R)
• M8: 9,910,560 km (0.106 R)
• M9: 10,411,713 km (0.117 R)
• M10: 11,219,242 km (0.064 R)
• M11: 13,836,606 km (0.12 R)
• M12: 17,092,604 km (0.052 R)
• M13: 18,966,766 km (0.07 R)
• M14: 20,532,457 km (0.089 R)
• M15: 22,569,532 km (0.092 R)
• M16: 23,039,718 km (0.088 R)
• M17: 24,081,218 km (0.091 R)
• M18: 25,914,540 km (0.092 R)
• M19: 28,289,406 km (0.054 R)
• M20: 30,614,307 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.2

Radius: 6.1

Gravity: 20.11 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.97 AU - 9.25 AU

Year: 14239 Days

Day: 16.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 147.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 58,986,473 km

• M1: 75,996 km (0.081 R)
• M2: 295,007 km (0.077 R)
• M3: 687,402 km (0.12 R)
• M4: 1,062,594 km (0.077 R)
• M5: 1,402,181 km (0.049 R)
• M6: 1,661,584 km (0.101 R)
• M7: 1,971,102 km (0.118 R)
• M8: 2,217,938 km (0.055 R)
• M9: 2,987,320 km (0.094 R)
• M10: 3,262,430 km (0.081 R)
• M11: 3,720,798 km (0.066 R)
• M12: 4,039,741 km (0.072 R)
• M13: 6,309,589 km (0.047 R)
• M14: 6,933,861 km (0.033 R)
• M15: 10,288,893 km (0.11 R)
• M16: 11,330,692 km (0.038 R)
• M17: 16,587,861 km (0.119 R)
• M18: 17,371,454 km (0.11 R)
• M19: 19,182,037 km (0.099 R)
• M20: 22,789,590 km (0.087 R)
• M21: 23,173,458 km (0.109 R)
• M22: 28,232,409 km (0.078 R)
• M23: 31,667,176 km (0.111 R)
• M24: 36,929,431 km (0.114 R)
• M25: 38,533,420 km (0.069 R)
• M26: 43,183,071 km (0.103 R)
• M27: 51,082,736 km (0.072 R)
• M28: 55,284,492 km (0.113 R)
• M29: 57,557,930 km (0.107 R)
• M30: 59,167,753 km (0.1 R)
• M31: 60,807,495 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.6

Radius: 4.3

Gravity: 22.1 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 8.31 AU - 9.27 AU

Year: 17676 Days

Day: 17.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,986,473 km

• M1: 56,249 km (0.043 R)
• M2: 264,489 km (0.112 R)
• M3: 639,232 km (0.082 R)
• M4: 1,125,574 km (0.073 R)
• M5: 1,895,405 km (0.102 R)
• M6: 2,667,779 km (0.093 R)
• M7: 2,803,015 km (0.114 R)
• M8: 3,442,845 km (0.101 R)
• M9: 4,085,518 km (0.034 R)
• M10: 5,568,182 km (0.118 R)
• M11: 6,017,126 km (0.117 R)
• M12: 7,332,091 km (0.102 R)
• M13: 7,733,911 km (0.068 R)
• M14: 9,027,334 km (0.088 R)
• M15: 12,910,745 km (0.115 R)
• M16: 14,098,851 km (0.065 R)
• M17: 14,372,466 km (0.052 R)
• M18: 15,647,638 km (0.078 R)
• M19: 18,502,265 km (0.118 R)
• M20: 20,968,535 km (0.033 R)
• M21: 30,340,393 km (0.067 R)
• M22: 42,729,789 km (0.108 R)
• M23: 45,496,452 km (0.118 R)
• M24: 54,006,626 km (0.111 R)
• M25: 56,717,789 km (0.076 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 11,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit