🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.8

Radius: 12.7

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.57 AU - 0.81 AU

Year: 370 Days

Day: 14.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,230,283 km

• M1: 157,975 km (0.072 R)
• M2: 610,210 km (0.07 R)
• M3: 1,040,004 km (0.074 R)
• M4: 1,517,371 km (0.098 R)
• M5: 2,046,050 km (0.118 R)
• M6: 2,621,254 km (0.033 R)
• M7: 3,098,022 km (0.117 R)
• M8: 3,504,929 km (0.108 R)
• M9: 3,947,738 km (0.047 R)
• M10: 4,760,204 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.3

Radius: 15

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.64 AU - 0.8 AU

Year: 394 Days

Day: 5.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,230,283 km

• M1: 186,549 km (0.062 R)
• M2: 729,888 km (0.096 R)
• M3: 1,224,309 km (0.095 R)
• M4: 2,710,265 km (0.062 R)
• M5: 3,637,023 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.2

Radius: 11.4

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.83 AU - 0.95 AU

Year: 542 Days

Day: 9.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,230,283 km

• M1: 141,819 km (0.117 R)
• M2: 520,750 km (0.083 R)
• M3: 902,374 km (0.057 R)
• M4: 1,472,791 km (0.086 R)
• M5: 1,838,259 km (0.102 R)
• M6: 2,411,667 km (0.103 R)
• M7: 3,186,135 km (0.105 R)
• M8: 3,565,665 km (0.073 R)
• M9: 4,206,991 km (0.099 R)
• M10: 4,713,380 km (0.085 R)
• M11: 5,629,667 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720

Radius: 9

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.83 AU - 1.37 AU

Year: 745 Days

Day: 11.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,230,283 km

• M1: 111,899 km (0.076 R)
• M2: 644,767 km (0.118 R)
• M3: 1,001,707 km (0.115 R)
• M4: 1,281,904 km (0.117 R)
• M5: 1,567,786 km (0.036 R)
• M6: 2,333,876 km (0.05 R)
• M7: 2,650,425 km (0.12 R)
• M8: 3,045,513 km (0.088 R)
• M9: 3,719,153 km (0.075 R)
• M10: 4,423,310 km (0.085 R)
• M11: 5,052,070 km (0.099 R)
• M12: 5,341,990 km (0.108 R)
• M13: 5,797,516 km (0.109 R)
• M14: 6,196,942 km (0.09 R)
• M15: 6,961,986 km (0.113 R)
• M16: 7,321,619 km (0.101 R)
• M17: 7,670,032 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.6

Radius: 12.9

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.02 AU - 1.42 AU

Year: 870 Days

Day: 8.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,230,283 km

• M1: 160,369 km (0.099 R)
• M2: 645,066 km (0.105 R)
• M3: 1,494,932 km (0.112 R)
• M4: 1,921,285 km (0.108 R)
• M5: 2,785,363 km (0.067 R)
• M6: 4,300,789 km (0.108 R)
• M7: 5,513,878 km (0.107 R)
• M8: 6,419,544 km (0.072 R)
• M9: 7,061,019 km (0.117 R)
• M10: 7,594,785 km (0.112 R)
• M11: 8,181,358 km (0.09 R)
• M12: 8,880,878 km (0.063 R)
• M13: 9,330,868 km (0.113 R)
• M14: 10,034,427 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591

Radius: 13.6

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.16 AU - 1.32 AU

Year: 892 Days

Day: 12.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,230,283 km

• M1: 169,195 km (0.097 R)
• M2: 625,469 km (0.098 R)
• M3: 1,050,476 km (0.11 R)
• M4: 1,477,279 km (0.114 R)
• M5: 3,234,755 km (0.103 R)
• M6: 4,108,107 km (0.108 R)
• M7: 4,918,928 km (0.047 R)
• M8: 5,834,167 km (0.119 R)
• M9: 6,512,444 km (0.065 R)
• M10: 7,038,430 km (0.107 R)
• M11: 8,504,190 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.7

Radius: 12.8

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.28 AU - 1.56 AU

Year: 1093 Days

Day: 13.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,230,283 km

• M1: 159,322 km (0.117 R)
• M2: 637,736 km (0.099 R)
• M3: 1,074,562 km (0.029 R)
• M4: 1,691,354 km (0.109 R)
• M5: 2,147,477 km (0.064 R)
• M6: 2,598,515 km (0.091 R)
• M7: 3,071,095 km (0.108 R)
• M8: 3,742,939 km (0.087 R)
• M9: 4,827,523 km (0.029 R)
• M10: 5,361,139 km (0.098 R)
• M11: 5,955,940 km (0.066 R)
• M12: 6,906,036 km (0.079 R)
• M13: 8,308,666 km (0.069 R)
• M14: 8,873,846 km (0.099 R)
• M15: 10,528,698 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.8

Radius: 7.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.27 AU - 7.39 AU

Year: 12814 Days

Day: 22.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 63,230,283 km

• M1: 96,939 km (0.065 R)
• M2: 367,263 km (0.082 R)
• M3: 735,124 km (0.111 R)
• M4: 985,700 km (0.109 R)
• M5: 1,352,066 km (0.076 R)
• M6: 1,627,326 km (0.115 R)
• M7: 2,650,126 km (0.098 R)
• M8: 3,085,755 km (0.112 R)
• M9: 4,202,503 km (0.061 R)
• M10: 4,795,958 km (0.079 R)
• M11: 5,382,681 km (0.088 R)
• M12: 5,950,704 km (0.089 R)
• M13: 7,095,427 km (0.104 R)
• M14: 7,856,731 km (0.067 R)
• M15: 8,339,184 km (0.096 R)
• M16: 8,969,589 km (0.101 R)
• M17: 9,813,471 km (0.062 R)
• M18: 11,201,739 km (0.098 R)
• M19: 12,446,094 km (0.097 R)
• M20: 14,541,063 km (0.084 R)
• M21: 15,391,676 km (0.086 R)
• M22: 18,073,667 km (0.119 R)
• M23: 19,128,033 km (0.051 R)
• M24: 19,926,885 km (0.097 R)
• M25: 22,377,597 km (0.117 R)
• M26: 27,228,009 km (0.112 R)
• M27: 28,894,230 km (0.044 R)
• M28: 29,752,324 km (0.082 R)
• M29: 31,419,442 km (0.025 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.1

Radius: 7.1

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 8.4 AU - 10.4 AU

Year: 18608 Days

Day: 17.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,230,283 km

• M1: 98,286 km (0.091 R)
• M2: 332,706 km (0.068 R)
• M3: 1,160,131 km (0.114 R)
• M4: 1,987,557 km (0.093 R)
• M5: 2,378,157 km (0.079 R)
• M6: 2,749,310 km (0.115 R)
• M7: 3,133,477 km (0.113 R)
• M8: 3,691,627 km (0.059 R)
• M9: 4,633,944 km (0.04 R)
• M10: 8,415,030 km (0.101 R)
• M11: 8,763,294 km (0.114 R)
• M12: 9,121,132 km (0.043 R)
• M13: 11,843,364 km (0.078 R)
• M14: 15,726,925 km (0.04 R)
• M15: 16,103,313 km (0.112 R)
• M16: 17,913,298 km (0.12 R)
• M17: 22,213,489 km (0.115 R)
• M18: 22,879,050 km (0.114 R)
• M19: 24,651,635 km (0.089 R)
• M20: 27,696,849 km (0.1 R)
• M21: 29,479,906 km (0.036 R)
• M22: 30,399,484 km (0.098 R)
• M23: 34,269,731 km (0.088 R)
• M24: 39,692,354 km (0.084 R)
• M25: 42,971,240 km (0.109 R)
• M26: 46,118,780 km (0.109 R)
• M27: 46,580,588 km (0.116 R)
• M28: 51,370,114 km (0.099 R)
• M29: 54,739,207 km (0.065 R)
• M30: 57,360,611 km (0.049 R)
• M31: 58,252,663 km (0.069 R)
• M32: 58,972,977 km (0.035 R)
• M33: 60,247,700 km (0.101 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 10,963 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit