🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.44 AU - 0.68 AU

Year: 271 Days

Day: 32.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,917,078 km

• M1: 64,776 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.3

Radius: 10

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.59 AU - 0.87 AU

Year: 403 Days

Day: 9.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,917,078 km

• M1: 124,465 km (0.092 R)
• M2: 531,970 km (0.1 R)
• M3: 957,875 km (0.092 R)
• M4: 1,402,330 km (0.044 R)
• M5: 1,829,133 km (0.071 R)
• M6: 2,947,676 km (0.09 R)
• M7: 3,667,392 km (0.029 R)
• M8: 4,017,301 km (0.064 R)
• M9: 4,931,643 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.9

Radius: 11.9

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.91 AU - 1.07 AU

Year: 636 Days

Day: 8.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 51,917,078 km

• M1: 147,952 km (0.063 R)
• M2: 1,463,666 km (0.095 R)
• M3: 2,202,081 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.2

Radius: 13.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.1 AU - 3.42 AU

Year: 2961 Days

Day: 9.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,917,078 km

• M1: 170,841 km (0.1 R)
• M2: 724,951 km (0.088 R)
• M3: 1,218,175 km (0.104 R)
• M4: 2,516,087 km (0.08 R)
• M5: 2,997,792 km (0.041 R)
• M6: 3,454,813 km (0.057 R)
• M7: 3,977,359 km (0.119 R)
• M8: 4,408,948 km (0.053 R)
• M9: 5,460,921 km (0.057 R)
• M10: 6,460,085 km (0.11 R)
• M11: 7,607,201 km (0.084 R)
• M12: 8,951,787 km (0.082 R)
• M13: 10,745,615 km (0.102 R)
• M14: 11,747,322 km (0.114 R)
• M15: 12,312,054 km (0.092 R)
• M16: 13,495,972 km (0.077 R)
• M17: 15,269,604 km (0.119 R)
• M18: 16,685,997 km (0.084 R)

Asteroid Belt

Center: 3.06 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.3

Radius: 13.6

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.34 AU - 3.36 AU

Year: 3959 Days

Day: 9.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,917,078 km

• M1: 184,454 km (0.078 R)
• M2: 623,524 km (0.086 R)
• M3: 1,398,441 km (0.091 R)
• M4: 2,310,240 km (0.093 R)
• M5: 3,569,106 km (0.092 R)
• M6: 4,113,642 km (0.114 R)
• M7: 5,120,286 km (0.112 R)
• M8: 6,839,914 km (0.108 R)
• M9: 8,388,551 km (0.091 R)
• M10: 9,848,925 km (0.056 R)
• M11: 10,599,159 km (0.077 R)
• M12: 14,184,272 km (0.115 R)
• M13: 14,682,881 km (0.114 R)
• M14: 16,249,770 km (0.107 R)
• M15: 18,865,039 km (0.113 R)
• M16: 20,842,275 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.1

Radius: 13.3

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.24 AU - 5.28 AU

Year: 5677 Days

Day: 10.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,917,078 km

• M1: 165,605 km (0.034 R)
• M2: 814,560 km (0.101 R)
• M3: 1,248,245 km (0.085 R)
• M4: 1,893,610 km (0.093 R)
• M5: 2,379,354 km (0.115 R)
• M6: 3,325,112 km (0.1 R)
• M7: 4,040,339 km (0.046 R)
• M8: 4,580,836 km (0.057 R)
• M9: 5,721,969 km (0.075 R)
• M10: 6,816,128 km (0.091 R)
• M11: 7,689,929 km (0.118 R)
• M12: 8,827,770 km (0.105 R)
• M13: 11,299,576 km (0.095 R)
• M14: 13,268,733 km (0.113 R)
• M15: 14,415,101 km (0.064 R)
• M16: 15,345,450 km (0.078 R)
• M17: 16,373,487 km (0.103 R)
• M18: 18,251,239 km (0.111 R)
• M19: 18,822,404 km (0.111 R)
• M20: 23,904,842 km (0.049 R)
• M21: 24,742,740 km (0.064 R)
• M22: 25,837,198 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.2

Radius: 12.4

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.22 AU - 6.68 AU

Year: 8215 Days

Day: 10.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,917,078 km

• M1: 174,132 km (0.092 R)
• M2: 579,991 km (0.105 R)
• M3: 1,095,954 km (0.096 R)
• M4: 1,965,267 km (0.056 R)
• M5: 2,771,301 km (0.105 R)
• M6: 4,103,320 km (0.074 R)
• M7: 5,453,142 km (0.103 R)
• M8: 6,731,455 km (0.111 R)
• M9: 7,441,148 km (0.079 R)
• M10: 8,243,890 km (0.09 R)
• M11: 8,780,049 km (0.073 R)
• M12: 10,633,117 km (0.101 R)
• M13: 12,500,996 km (0.074 R)
• M14: 14,007,597 km (0.06 R)
• M15: 16,524,730 km (0.105 R)
• M16: 18,943,728 km (0.12 R)
• M17: 19,958,450 km (0.083 R)
• M18: 22,957,588 km (0.053 R)
• M19: 23,662,793 km (0.094 R)
• M20: 25,116,585 km (0.117 R)
• M21: 26,629,019 km (0.098 R)
• M22: 29,523,888 km (0.11 R)
• M23: 32,182,691 km (0.07 R)
• M24: 36,404,791 km (0.082 R)
• M25: 37,971,979 km (0.057 R)
• M26: 40,215,498 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.6

Radius: 6.1

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.57 AU - 8.13 AU

Year: 14201 Days

Day: 21.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,917,078 km

• M1: 75,846 km (0.044 R)
• M2: 373,247 km (0.082 R)
• M3: 643,121 km (0.086 R)
• M4: 1,213,837 km (0.086 R)
• M5: 2,356,166 km (0.091 R)
• M6: 3,701,351 km (0.087 R)
• M7: 4,027,474 km (0.089 R)
• M8: 6,325,447 km (0.074 R)
• M9: 6,673,411 km (0.107 R)
• M10: 8,284,431 km (0.115 R)
• M11: 10,886,237 km (0.083 R)
• M12: 11,106,445 km (0.077 R)
• M13: 12,075,839 km (0.117 R)
• M14: 12,550,962 km (0.096 R)
• M15: 13,665,765 km (0.115 R)
• M16: 15,878,168 km (0.11 R)
• M17: 16,304,522 km (0.028 R)
• M18: 17,933,643 km (0.088 R)
• M19: 19,668,380 km (0.072 R)
• M20: 20,077,680 km (0.097 R)
• M21: 21,858,942 km (0.098 R)
• M22: 25,345,470 km (0.114 R)
• M23: 26,918,342 km (0.119 R)
• M24: 27,321,358 km (0.113 R)
• M25: 31,243,366 km (0.119 R)
• M26: 36,009,853 km (0.075 R)
• M27: 36,622,307 km (0.111 R)
• M28: 36,993,160 km (0.105 R)
• M29: 40,707,825 km (0.077 R)
• M30: 42,450,939 km (0.114 R)
• M31: 43,271,932 km (0.099 R)
• M32: 44,523,169 km (0.076 R)
• M33: 45,087,003 km (0.106 R)
• M34: 46,372,946 km (0.117 R)
• M35: 51,143,323 km (0.096 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: 531 - 16,212 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit