🌌 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 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.53 AU - 0.61 AU

Year: 274 Days

Day: 28.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.5 AU - 0.68 AU

Year: 288 Days

Day: 27.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.5

Radius: 10.4

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.9 AU - 1.12 AU

Year: 645 Days

Day: 11.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,753,493 km

• M1: 129,402 km (0.058 R)
• M2: 474,824 km (0.037 R)
• M3: 1,352,215 km (0.109 R)
• M4: 2,055,774 km (0.056 R)
• M5: 2,555,281 km (0.099 R)
• M6: 3,134,225 km (0.103 R)
• M7: 3,603,813 km (0.049 R)
• M8: 4,459,213 km (0.093 R)
• M9: 5,336,156 km (0.1 R)
• M10: 5,911,509 km (0.087 R)
• M11: 6,672,663 km (0.107 R)
• M12: 7,142,401 km (0.057 R)
• M13: 7,634,129 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.1

Radius: 14

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.42 AU - 3.04 AU

Year: 2868 Days

Day: 14.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,753,493 km

• M1: 176,226 km (0.113 R)
• M2: 769,980 km (0.054 R)
• M3: 1,465,910 km (0.105 R)
• M4: 3,015,893 km (0.12 R)
• M5: 4,678,225 km (0.089 R)
• M6: 7,416,464 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855

Radius: 9.3

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.44 AU - 3.74 AU

Year: 3454 Days

Day: 9.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,753,493 km

• M1: 115,938 km (0.047 R)
• M2: 411,394 km (0.115 R)
• M3: 719,715 km (0.104 R)
• M4: 1,083,537 km (0.069 R)
• M5: 1,615,807 km (0.078 R)
• M6: 2,112,322 km (0.108 R)
• M7: 2,774,891 km (0.101 R)
• M8: 3,333,938 km (0.074 R)
• M9: 3,880,569 km (0.073 R)
• M10: 4,774,266 km (0.11 R)
• M11: 5,126,719 km (0.117 R)
• M12: 5,883,983 km (0.04 R)
• M13: 7,586,108 km (0.076 R)
• M14: 8,208,286 km (0.112 R)
• M15: 9,090,464 km (0.115 R)
• M16: 10,699,090 km (0.096 R)
• M17: 12,255,357 km (0.072 R)
• M18: 13,356,846 km (0.077 R)
• M19: 15,536,636 km (0.097 R)
• M20: 15,977,202 km (0.102 R)
• M21: 16,313,049 km (0.077 R)
• M22: 18,367,327 km (0.025 R)
• M23: 18,674,153 km (0.109 R)
• M24: 19,807,506 km (0.101 R)
• M25: 22,003,453 km (0.081 R)
• M26: 24,951,728 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.9

Radius: 13.2

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.8 AU - 5.76 AU

Year: 7714 Days

Day: 7.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 47,753,493 km

• M1: 164,109 km (0.025 R)
• M2: 605,273 km (0.111 R)
• M3: 1,132,306 km (0.118 R)
• M4: 1,556,715 km (0.079 R)
• M5: 2,316,224 km (0.101 R)
• M6: 3,141,555 km (0.057 R)
• M7: 3,739,797 km (0.118 R)
• M8: 4,737,914 km (0.1 R)
• M9: 5,436,087 km (0.08 R)
• M10: 6,168,519 km (0.055 R)
• M11: 6,929,673 km (0.05 R)
• M12: 8,309,713 km (0.115 R)
• M13: 9,865,531 km (0.04 R)
• M14: 10,664,533 km (0.084 R)
• M15: 12,179,211 km (0.074 R)
• M16: 13,210,090 km (0.104 R)
• M17: 14,006,250 km (0.107 R)
• M18: 15,015,886 km (0.096 R)
• M19: 16,458,159 km (0.078 R)
• M20: 19,617,218 km (0.057 R)
• M21: 21,571,115 km (0.119 R)
• M22: 22,515,377 km (0.08 R)
• M23: 23,160,144 km (0.074 R)
• M24: 27,563,707 km (0.066 R)
• M25: 28,769,615 km (0.066 R)
• M26: 32,190,919 km (0.097 R)
• M27: 33,737,013 km (0.084 R)
• M28: 34,901,931 km (0.057 R)
• M29: 37,088,304 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.8

Radius: 13.6

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.3 AU - 6.5 AU

Year: 9112 Days

Day: 7.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,753,493 km

• M1: 239,207 km (0.06 R)
• M2: 1,182,721 km (0.102 R)
• M3: 2,073,875 km (0.075 R)
• M4: 4,287,475 km (0.081 R)
• M5: 4,930,147 km (0.049 R)
• M6: 6,285,953 km (0.111 R)
• M7: 17,279,900 km (0.087 R)
• M8: 18,020,260 km (0.079 R)
• M9: 23,582,459 km (0.112 R)
• M10: 24,035,142 km (0.049 R)
• M11: 25,349,210 km (0.098 R)
• M12: 26,629,319 km (0.042 R)
• M13: 28,544,471 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.3

Radius: 12

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.33 AU - 6.73 AU

Year: 9415 Days

Day: 10.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,753,493 km

• M1: 151,393 km (0.1 R)
• M2: 1,575,266 km (0.12 R)
• M3: 3,585,113 km (0.112 R)
• M4: 4,009,971 km (0.117 R)
• M5: 4,553,011 km (0.095 R)
• M6: 5,022,449 km (0.029 R)
• M7: 8,508,977 km (0.12 R)
• M8: 10,420,688 km (0.05 R)
• M9: 10,876,064 km (0.106 R)
• M10: 15,724,831 km (0.085 R)
• M11: 17,428,750 km (0.113 R)
• M12: 23,276,381 km (0.118 R)
• M13: 25,032,212 km (0.105 R)
• M14: 25,575,701 km (0.066 R)
• M15: 31,452,653 km (0.072 R)
• M16: 33,268,472 km (0.091 R)
• M17: 39,013,180 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.5

Radius: 6.3

Gravity: 15.23 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.59 AU - 7.45 AU

Year: 10585 Days

Day: 24.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,753,493 km

• M1: 78,389 km (0.103 R)
• M2: 308,471 km (0.109 R)
• M3: 526,136 km (0.037 R)
• M4: 1,193,641 km (0.03 R)
• M5: 2,002,218 km (0.061 R)
• M6: 2,340,010 km (0.08 R)
• M7: 3,388,242 km (0.098 R)
• M8: 4,223,148 km (0.037 R)
• M9: 4,510,226 km (0.071 R)
• M10: 6,439,740 km (0.095 R)
• M11: 6,666,530 km (0.085 R)
• M12: 7,216,302 km (0.081 R)
• M13: 10,273,484 km (0.032 R)
• M14: 11,717,852 km (0.116 R)
• M15: 12,113,239 km (0.057 R)
• M16: 13,171,195 km (0.095 R)
• M17: 13,972,591 km (0.114 R)
• M18: 15,135,116 km (0.043 R)
• M19: 15,945,188 km (0.074 R)
• M20: 17,725,104 km (0.088 R)
• M21: 19,475,848 km (0.106 R)
• M22: 19,871,235 km (0.048 R)
• M23: 21,843,683 km (0.096 R)
• M24: 23,052,583 km (0.043 R)
• M25: 23,673,414 km (0.043 R)
• M26: 27,734,398 km (0.104 R)
• M27: 28,436,610 km (0.091 R)
• M28: 29,563,980 km (0.081 R)
• M29: 35,415,950 km (0.12 R)
• M30: 37,445,095 km (0.098 R)
• M31: 46,337,492 km (0.072 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 10,912 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit