🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.2

Radius: 9.7

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.45 AU - 0.73 AU

Year: 302 Days

Day: 6.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,604,185 km

• M1: 120,576 km (0.073 R)
• M2: 475,272 km (0.065 R)
• M3: 843,882 km (0.106 R)
• M4: 1,418,487 km (0.109 R)
• M5: 2,104,992 km (0.06 R)
• M6: 2,886,341 km (0.106 R)
• M7: 3,377,770 km (0.06 R)
• M8: 3,715,562 km (0.035 R)
• M9: 4,179,615 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527

Radius: 10.3

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.52 AU - 0.72 AU

Year: 326 Days

Day: 10.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,604,185 km

• M1: 132,544 km (0.078 R)
• M2: 579,692 km (0.106 R)
• M3: 1,012,478 km (0.081 R)
• M4: 1,813,276 km (0.085 R)
• M5: 2,517,732 km (0.063 R)
• M6: 3,449,428 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.1

Radius: 14.4

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.75 AU - 0.79 AU

Year: 451 Days

Day: 5.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 54.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,604,185 km

• M1: 179,069 km (0.044 R)
• M2: 662,569 km (0.055 R)
• M3: 1,224,159 km (0.053 R)
• M4: 1,849,179 km (0.119 R)
• M5: 2,521,472 km (0.052 R)
• M6: 3,496,252 km (0.101 R)
• M7: 4,196,370 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.5

Radius: 9.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.82 AU - 0.92 AU

Year: 541 Days

Day: 11.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,604,185 km

• M1: 121,922 km (0.04 R)
• M2: 552,465 km (0.098 R)
• M3: 918,980 km (0.04 R)
• M4: 1,402,330 km (0.063 R)
• M5: 3,147,838 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.1

Radius: 10.2

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.7 AU - 2.72 AU

Year: 2191 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,604,185 km

• M1: 127,009 km (0.06 R)
• M2: 525,089 km (0.087 R)
• M3: 1,172,847 km (0.096 R)
• M4: 2,188,916 km (0.1 R)
• M5: 2,531,495 km (0.085 R)
• M6: 3,351,740 km (0.086 R)
• M7: 3,938,014 km (0.075 R)
• M8: 4,417,625 km (0.102 R)
• M9: 5,940,382 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.8

Radius: 13.2

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.28 AU - 3.48 AU

Year: 3259 Days

Day: 10.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 102.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,604,185 km

• M1: 164,109 km (0.078 R)
• M2: 613,052 km (0.047 R)
• M3: 1,100,741 km (0.05 R)
• M4: 1,853,966 km (0.091 R)
• M5: 2,427,824 km (0.055 R)
• M6: 2,998,091 km (0.049 R)
• M7: 4,126,807 km (0.095 R)
• M8: 4,848,317 km (0.092 R)
• M9: 6,780,972 km (0.099 R)
• M10: 7,367,246 km (0.07 R)
• M11: 9,709,351 km (0.054 R)
• M12: 11,239,288 km (0.084 R)
• M13: 13,347,122 km (0.113 R)
• M14: 13,827,630 km (0.095 R)
• M15: 14,269,991 km (0.067 R)
• M16: 16,846,366 km (0.115 R)
• M17: 18,098,500 km (0.072 R)
• M18: 22,563,697 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.4

Radius: 11

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.77 AU - 4.19 AU

Year: 4329 Days

Day: 11 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,604,185 km

• M1: 150,645 km (0.101 R)
• M2: 2,164,980 km (0.077 R)
• M3: 3,303,420 km (0.119 R)
• M4: 3,702,248 km (0.081 R)
• M5: 4,109,902 km (0.108 R)
• M6: 5,898,345 km (0.066 R)
• M7: 9,009,083 km (0.115 R)
• M8: 10,442,979 km (0.119 R)
• M9: 11,829,900 km (0.086 R)
• M10: 12,467,487 km (0.097 R)
• M11: 14,243,961 km (0.092 R)
• M12: 16,302,578 km (0.089 R)
• M13: 17,030,820 km (0.048 R)
• M14: 19,683,489 km (0.053 R)
• M15: 20,162,502 km (0.102 R)
• M16: 24,122,806 km (0.046 R)
• M17: 25,550,568 km (0.085 R)
• M18: 26,367,672 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.4

Radius: 3.5

Gravity: 79.71 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.03 AU - 6.83 AU

Year: 9630 Days

Day: 18.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 162.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,604,185 km

• M1: 81,830 km (0.109 R)
• M2: 365,617 km (0.094 R)
• M3: 530,324 km (0.113 R)
• M4: 854,952 km (0.111 R)
• M5: 1,222,215 km (0.088 R)
• M6: 2,091,229 km (0.118 R)
• M7: 2,297,075 km (0.088 R)
• M8: 2,495,741 km (0.108 R)
• M9: 2,837,572 km (0.088 R)
• M10: 6,772,595 km (0.113 R)
• M11: 7,476,752 km (0.065 R)
• M12: 10,948,470 km (0.112 R)
• M13: 12,329,258 km (0.097 R)
• M14: 12,999,307 km (0.104 R)
• M15: 13,501,507 km (0.119 R)
• M16: 22,844,193 km (0.116 R)
• M17: 30,863,836 km (0.077 R)
• M18: 31,756,038 km (0.04 R)
• M19: 34,654,945 km (0.07 R)
• M20: 36,972,366 km (0.091 R)
• M21: 39,131,661 km (0.115 R)
• M22: 45,392,931 km (0.097 R)
• M23: 45,966,938 km (0.032 R)
• M24: 47,129,463 km (0.091 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 349 - 15,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit