🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.9

Radius: 12.3

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.65 AU - 0.77 AU

Year: 380 Days

Day: 14.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,183,876 km

• M1: 153,188 km (0.108 R)
• M2: 536,608 km (0.106 R)
• M3: 949,647 km (0.089 R)
• M4: 1,396,197 km (0.114 R)
• M5: 1,926,821 km (0.119 R)
• M6: 2,383,842 km (0.037 R)
• M7: 3,465,883 km (0.107 R)
• M8: 3,872,490 km (0.107 R)
• M9: 4,412,988 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.9

Radius: 12.5

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.99 AU - 2.65 AU

Year: 2247 Days

Day: 8.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,183,876 km

• M1: 155,432 km (0.048 R)
• M2: 566,976 km (0.092 R)
• M3: 1,046,886 km (0.101 R)
• M4: 1,682,976 km (0.092 R)
• M5: 2,122,644 km (0.116 R)
• M6: 2,773,694 km (0.041 R)
• M7: 3,536,643 km (0.097 R)
• M8: 4,027,025 km (0.078 R)
• M9: 4,456,072 km (0.113 R)
• M10: 4,938,375 km (0.095 R)
• M11: 5,677,389 km (0.115 R)
• M12: 6,543,560 km (0.062 R)
• M13: 6,965,576 km (0.105 R)
• M14: 7,496,050 km (0.118 R)
• M15: 8,704,801 km (0.049 R)
• M16: 9,391,156 km (0.075 R)
• M17: 12,375,933 km (0.108 R)
• M18: 13,512,727 km (0.104 R)
• M19: 16,297,940 km (0.08 R)
• M20: 17,023,789 km (0.081 R)
• M21: 17,555,310 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.6

Radius: 12.5

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.5 AU - 2.51 AU

Year: 2513 Days

Day: 11.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,183,876 km

• M1: 156,779 km (0.042 R)
• M2: 550,221 km (0.098 R)
• M3: 941,120 km (0.067 R)
• M4: 1,539,063 km (0.116 R)
• M5: 1,948,063 km (0.078 R)
• M6: 2,370,528 km (0.1 R)
• M7: 2,881,704 km (0.117 R)
• M8: 3,450,774 km (0.085 R)
• M9: 5,405,869 km (0.086 R)
• M10: 6,393,514 km (0.11 R)
• M11: 6,806,105 km (0.071 R)
• M12: 8,378,229 km (0.036 R)
• M13: 9,418,532 km (0.044 R)
• M14: 10,115,359 km (0.059 R)
• M15: 11,719,198 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.4

Radius: 8.6

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.71 AU - 4.45 AU

Year: 4307 Days

Day: 8.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,183,876 km

• M1: 106,962 km (0.062 R)
• M2: 387,907 km (0.097 R)
• M3: 702,362 km (0.091 R)
• M4: 1,283,999 km (0.064 R)
• M5: 1,579,604 km (0.094 R)
• M6: 1,895,854 km (0.116 R)
• M7: 2,170,964 km (0.101 R)
• M8: 3,630,142 km (0.053 R)
• M9: 4,100,627 km (0.075 R)
• M10: 5,163,819 km (0.108 R)
• M11: 5,867,827 km (0.056 R)
• M12: 6,285,803 km (0.049 R)
• M13: 6,575,425 km (0.034 R)
• M14: 7,627,397 km (0.101 R)
• M15: 9,224,205 km (0.096 R)
• M16: 10,743,072 km (0.108 R)
• M17: 11,284,467 km (0.063 R)
• M18: 13,394,844 km (0.053 R)
• M19: 15,025,161 km (0.091 R)
• M20: 15,649,583 km (0.079 R)
• M21: 17,117,736 km (0.097 R)
• M22: 21,543,440 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564

Radius: 14.2

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.88 AU - 4.04 AU

Year: 5010 Days

Day: 10.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 99.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,183,876 km

• M1: 176,675 km (0.099 R)
• M2: 627,264 km (0.096 R)
• M3: 1,283,550 km (0.036 R)
• M4: 2,953,960 km (0.1 R)
• M5: 3,676,068 km (0.101 R)
• M6: 4,298,844 km (0.107 R)
• M7: 4,862,380 km (0.108 R)
• M8: 5,615,156 km (0.112 R)
• M9: 7,699,054 km (0.099 R)
• M10: 8,163,855 km (0.106 R)
• M11: 10,428,168 km (0.102 R)
• M12: 11,132,924 km (0.119 R)
• M13: 11,775,596 km (0.082 R)
• M14: 13,286,684 km (0.103 R)
• M15: 14,168,414 km (0.101 R)
• M16: 17,841,940 km (0.106 R)
• M17: 19,435,307 km (0.085 R)
• M18: 23,050,638 km (0.102 R)
• M19: 23,944,635 km (0.119 R)
• M20: 24,707,285 km (0.076 R)
• M21: 26,280,905 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150

Radius: 9.3

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.91 AU - 4.65 AU

Year: 5630 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,183,876 km

• M1: 115,639 km (0.119 R)
• M2: 463,903 km (0.099 R)
• M3: 1,060,051 km (0.078 R)
• M4: 1,672,654 km (0.087 R)
• M5: 2,254,440 km (0.112 R)
• M6: 3,628,945 km (0.078 R)
• M7: 4,828,122 km (0.037 R)
• M8: 5,618,597 km (0.107 R)
• M9: 6,111,522 km (0.092 R)
• M10: 7,303,817 km (0.052 R)
• M11: 8,711,982 km (0.089 R)
• M12: 12,398,372 km (0.079 R)
• M13: 18,887,479 km (0.089 R)
• M14: 19,290,197 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.1

Radius: 14.3

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.79 AU - 6.11 AU

Year: 7002 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,183,876 km

• M1: 177,872 km (0.104 R)
• M2: 859,739 km (0.092 R)
• M3: 1,307,336 km (0.112 R)
• M4: 2,532,243 km (0.119 R)
• M5: 3,255,698 km (0.046 R)
• M6: 4,344,621 km (0.047 R)
• M7: 5,002,852 km (0.098 R)
• M8: 5,478,124 km (0.064 R)
• M9: 6,836,024 km (0.093 R)
• M10: 7,423,196 km (0.085 R)
• M11: 8,699,116 km (0.09 R)
• M12: 10,116,556 km (0.068 R)
• M13: 11,377,816 km (0.086 R)
• M14: 12,099,027 km (0.072 R)
• M15: 13,747,446 km (0.065 R)
• M16: 16,494,512 km (0.117 R)
• M17: 19,012,842 km (0.11 R)
• M18: 19,735,400 km (0.047 R)
• M19: 20,701,952 km (0.116 R)
• M20: 25,576,748 km (0.079 R)
• M21: 32,581,219 km (0.107 R)
• M22: 33,721,155 km (0.061 R)
• M23: 35,318,112 km (0.114 R)
• M24: 37,300,583 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.2

Radius: 3.8

Gravity: 43.64 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 7.18 AU - 7.2 AU

Year: 12258 Days

Day: 22.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 62,183,876 km

• M1: 47,273 km (0.116 R)
• M2: 300,243 km (0.095 R)
• M3: 646,861 km (0.106 R)
• M4: 3,360,267 km (0.072 R)
• M5: 4,288,971 km (0.071 R)
• M6: 4,780,250 km (0.109 R)
• M7: 6,636,162 km (0.108 R)
• M8: 9,979,225 km (0.116 R)
• M9: 10,456,293 km (0.076 R)
• M10: 11,919,958 km (0.087 R)
• M11: 17,194,779 km (0.07 R)
• M12: 20,042,824 km (0.116 R)
• M13: 21,578,146 km (0.066 R)
• M14: 22,018,114 km (0.089 R)
• M15: 26,250,836 km (0.098 R)
• M16: 28,715,461 km (0.045 R)
• M17: 30,003,798 km (0.05 R)
• M18: 30,222,211 km (0.089 R)
• M19: 31,218,084 km (0.118 R)
• M20: 32,007,661 km (0.102 R)
• M21: 35,542,659 km (0.081 R)
• M22: 37,403,956 km (0.049 R)
• M23: 38,166,306 km (0.118 R)
• M24: 38,938,979 km (0.081 R)
• M25: 41,319,381 km (0.075 R)
• M26: 41,454,468 km (0.053 R)
• M27: 47,247,346 km (0.066 R)
• M28: 47,691,203 km (0.039 R)
• M29: 49,494,605 km (0.111 R)
• M30: 52,284,157 km (0.096 R)
• M31: 53,236,796 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.3

Radius: 5.3

Gravity: 21.37 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.43 AU - 9.59 AU

Year: 15784 Days

Day: 19.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,183,876 km

• M1: 69,264 km (0.058 R)
• M2: 1,343,688 km (0.07 R)
• M3: 3,212,315 km (0.031 R)
• M4: 3,750,718 km (0.036 R)
• M5: 4,071,306 km (0.027 R)
• M6: 5,429,804 km (0.107 R)
• M7: 6,433,157 km (0.109 R)
• M8: 6,935,656 km (0.087 R)
• M9: 9,261,604 km (0.111 R)
• M10: 10,974,799 km (0.077 R)
• M11: 12,953,829 km (0.074 R)
• M12: 13,685,662 km (0.117 R)
• M13: 14,585,643 km (0.057 R)
• M14: 17,046,378 km (0.076 R)
• M15: 28,757,647 km (0.099 R)
• M16: 29,544,083 km (0.073 R)
• M17: 34,819,503 km (0.063 R)
• M18: 43,123,232 km (0.103 R)
• M19: 58,530,915 km (0.11 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 11,657 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit