🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.7

Radius: 14.5

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.7 AU - 0.8 AU

Year: 441 Days

Day: 5.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,931,525 km

• M1: 180,265 km (0.112 R)
• M2: 661,671 km (0.118 R)
• M3: 1,282,802 km (0.096 R)
• M4: 1,734,737 km (0.097 R)
• M5: 2,322,058 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.6

Radius: 8.5

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.7 AU - 1.08 AU

Year: 569 Days

Day: 13.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,931,525 km

• M1: 106,962 km (0.112 R)
• M2: 394,340 km (0.115 R)
• M3: 663,467 km (0.114 R)
• M4: 987,047 km (0.074 R)
• M5: 1,309,729 km (0.092 R)
• M6: 1,966,614 km (0.07 R)
• M7: 2,258,030 km (0.088 R)
• M8: 2,940,346 km (0.093 R)
• M9: 3,475,907 km (0.108 R)
• M10: 3,849,602 km (0.109 R)
• M11: 4,475,669 km (0.117 R)
• M12: 5,235,626 km (0.119 R)
• M13: 5,584,189 km (0.055 R)
• M14: 6,743,722 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 13

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.84 AU - 0.98 AU

Year: 589 Days

Day: 7.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,931,525 km

• M1: 161,715 km (0.094 R)
• M2: 650,751 km (0.064 R)
• M3: 1,084,285 km (0.094 R)
• M4: 1,492,239 km (0.107 R)
• M5: 2,266,408 km (0.075 R)
• M6: 2,987,918 km (0.071 R)
• M7: 3,396,919 km (0.108 R)
• M8: 4,001,294 km (0.101 R)
• M9: 4,580,088 km (0.119 R)
• M10: 5,444,615 km (0.105 R)
• M11: 6,315,125 km (0.076 R)
• M12: 7,430,676 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.4

Radius: 9.5

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.12 AU - 1.2 AU

Year: 847 Days

Day: 15 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,931,525 km

• M1: 118,182 km (0.111 R)
• M2: 518,057 km (0.065 R)
• M3: 861,235 km (0.075 R)
• M4: 1,229,994 km (0.067 R)
• M5: 1,849,778 km (0.117 R)
• M6: 2,769,356 km (0.045 R)
• M7: 3,110,589 km (0.12 R)
• M8: 3,703,894 km (0.102 R)
• M9: 4,354,794 km (0.036 R)
• M10: 5,026,937 km (0.114 R)
• M11: 5,481,266 km (0.098 R)
• M12: 5,805,594 km (0.065 R)
• M13: 6,388,727 km (0.047 R)
• M14: 7,233,805 km (0.099 R)
• M15: 7,933,175 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.5

Radius: 8.8

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.22 AU - 1.6 AU

Year: 1136 Days

Day: 6.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,931,525 km

• M1: 109,655 km (0.116 R)
• M2: 395,537 km (0.106 R)
• M3: 784,342 km (0.1 R)
• M4: 1,356,254 km (0.117 R)
• M5: 1,683,275 km (0.114 R)
• M6: 2,123,093 km (0.093 R)
• M7: 2,661,645 km (0.082 R)
• M8: 2,982,832 km (0.067 R)
• M9: 3,302,373 km (0.098 R)
• M10: 4,058,141 km (0.07 R)
• M11: 4,434,679 km (0.118 R)
• M12: 4,960,965 km (0.091 R)
• M13: 5,296,213 km (0.117 R)
• M14: 5,666,618 km (0.116 R)
• M15: 6,159,094 km (0.026 R)
• M16: 7,253,253 km (0.072 R)
• M17: 8,059,884 km (0.032 R)
• M18: 8,709,738 km (0.064 R)
• M19: 9,338,198 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.4

Radius: 14.9

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.24 AU - 2.32 AU

Year: 2335 Days

Day: 10.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,931,525 km

• M1: 185,352 km (0.108 R)
• M2: 1,271,432 km (0.08 R)
• M3: 1,797,867 km (0.035 R)
• M4: 4,348,361 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.5

Radius: 12.5

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.28 AU - 3.2 AU

Year: 3076 Days

Day: 8.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,931,525 km

• M1: 155,731 km (0.095 R)
• M2: 558,150 km (0.106 R)
• M3: 1,093,560 km (0.114 R)
• M4: 1,774,231 km (0.064 R)
• M5: 2,191,908 km (0.055 R)
• M6: 2,986,572 km (0.103 R)
• M7: 3,527,368 km (0.054 R)
• M8: 4,262,193 km (0.063 R)
• M9: 5,927,367 km (0.097 R)
• M10: 6,666,979 km (0.046 R)
• M11: 7,403,449 km (0.113 R)
• M12: 8,159,517 km (0.07 R)
• M13: 9,296,161 km (0.116 R)
• M14: 9,748,844 km (0.107 R)
• M15: 12,919,571 km (0.1 R)
• M16: 14,311,729 km (0.117 R)
• M17: 15,590,192 km (0.106 R)
• M18: 16,447,388 km (0.062 R)
• M19: 17,449,096 km (0.12 R)
• M20: 18,022,953 km (0.074 R)
• M21: 20,762,688 km (0.084 R)
• M22: 21,668,952 km (0.043 R)
• M23: 22,065,237 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.3

Radius: 6.7

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.45 AU - 10.25 AU

Year: 19391 Days

Day: 16.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,931,525 km

• M1: 84,822 km (0.057 R)
• M2: 490,681 km (0.102 R)
• M3: 1,006,943 km (0.025 R)
• M4: 1,235,379 km (0.096 R)
• M5: 9,842,044 km (0.107 R)
• M6: 10,229,353 km (0.066 R)
• M7: 13,757,319 km (0.089 R)
• M8: 15,416,360 km (0.065 R)
• M9: 23,773,346 km (0.054 R)
• M10: 26,233,183 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 237.1

Radius: 4.1

Gravity: 14.1 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 9.26 AU - 11.44 AU

Year: 22584 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,931,525 km

• M1: 51,162 km (0.06 R)
• M2: 193,430 km (0.105 R)
• M3: 1,877,453 km (0.096 R)
• M4: 2,469,412 km (0.111 R)
• M5: 3,510,912 km (0.053 R)
• M6: 5,255,373 km (0.051 R)
• M7: 5,503,107 km (0.103 R)
• M8: 6,176,148 km (0.073 R)
• M9: 6,944,333 km (0.1 R)
• M10: 8,668,000 km (0.107 R)
• M11: 9,317,853 km (0.066 R)
• M12: 13,514,522 km (0.044 R)
• M13: 15,582,413 km (0.111 R)
• M14: 23,410,571 km (0.097 R)
• M15: 25,459,164 km (0.107 R)
• M16: 34,479,616 km (0.025 R)
• M17: 35,221,771 km (0.104 R)
• M18: 36,101,108 km (0.108 R)
• M19: 37,123,759 km (0.057 R)
• M20: 40,855,029 km (0.102 R)
• M21: 51,902,832 km (0.099 R)
• M22: 52,877,013 km (0.04 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 17,428 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit