🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.8

Radius: 11.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.46 AU - 0.56 AU

Year: 247 Days

Day: 8.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 36,800,724 km

• M1: 144,362 km (0.105 R)
• M2: 650,601 km (0.109 R)
• M3: 1,473,539 km (0.076 R)
• M4: 1,915,302 km (0.077 R)
• M5: 2,524,913 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.2

Radius: 8.5

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.57 AU - 0.59 AU

Year: 300 Days

Day: 14.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,800,724 km

• M1: 105,766 km (0.101 R)
• M2: 454,778 km (0.032 R)
• M3: 762,500 km (0.104 R)
• M4: 1,054,216 km (0.105 R)
• M5: 1,336,208 km (0.105 R)
• M6: 1,824,346 km (0.108 R)
• M7: 2,384,740 km (0.05 R)
• M8: 2,655,512 km (0.073 R)
• M9: 2,976,250 km (0.096 R)
• M10: 3,696,264 km (0.074 R)
• M11: 3,988,578 km (0.107 R)
• M12: 4,321,583 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.8

Radius: 8.6

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.64 AU

Year: 307 Days

Day: 5.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,800,724 km

• M1: 106,962 km (0.085 R)
• M2: 460,163 km (0.078 R)
• M3: 728,841 km (0.107 R)
• M4: 997,967 km (0.059 R)
• M5: 1,279,810 km (0.102 R)
• M6: 1,615,358 km (0.075 R)
• M7: 2,230,055 km (0.099 R)
• M8: 2,646,536 km (0.115 R)
• M9: 3,176,561 km (0.113 R)
• M10: 3,456,160 km (0.087 R)
• M11: 3,918,567 km (0.1 R)
• M12: 4,240,800 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.5

Radius: 10.1

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.57 AU - 0.63 AU

Year: 315 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 174.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,800,724 km

• M1: 125,812 km (0.081 R)
• M2: 550,819 km (0.097 R)
• M3: 1,074,711 km (0.107 R)
• M4: 1,593,666 km (0.091 R)
• M5: 2,008,501 km (0.083 R)
• M6: 2,737,940 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.4

Radius: 14.5

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.6 AU - 0.72 AU

Year: 364 Days

Day: 10.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,800,724 km

• M1: 180,265 km (0.108 R)
• M2: 642,972 km (0.119 R)
• M3: 1,165,068 km (0.114 R)
• M4: 1,669,512 km (0.06 R)
• M5: 2,153,910 km (0.12 R)
• M6: 2,605,845 km (0.065 R)
• M7: 3,308,955 km (0.1 R)
• M8: 4,123,965 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679

Radius: 10.4

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.97 AU - 1.27 AU

Year: 804 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,800,724 km

• M1: 130,150 km (0.06 R)
• M2: 477,217 km (0.113 R)
• M3: 961,166 km (0.085 R)
• M4: 1,406,070 km (0.074 R)
• M5: 3,125,548 km (0.05 R)
• M6: 3,472,615 km (0.038 R)
• M7: 3,845,264 km (0.092 R)
• M8: 4,722,954 km (0.054 R)
• M9: 5,055,510 km (0.076 R)
• M10: 5,555,167 km (0.059 R)
• M11: 6,632,122 km (0.054 R)
• M12: 7,439,353 km (0.083 R)
• M13: 8,235,662 km (0.115 R)
• M14: 8,667,551 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 13.7

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.44 AU - 3.94 AU

Year: 3864 Days

Day: 11.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,800,724 km

• M1: 170,392 km (0.073 R)
• M2: 763,548 km (0.116 R)
• M3: 1,592,170 km (0.092 R)
• M4: 2,344,797 km (0.101 R)
• M5: 2,819,022 km (0.098 R)
• M6: 3,324,962 km (0.1 R)
• M7: 3,801,581 km (0.105 R)
• M8: 4,382,769 km (0.119 R)
• M9: 6,112,270 km (0.107 R)
• M10: 7,754,106 km (0.068 R)
• M11: 9,305,885 km (0.04 R)
• M12: 9,809,581 km (0.042 R)
• M13: 10,545,453 km (0.119 R)
• M14: 13,519,908 km (0.05 R)
• M15: 15,430,572 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.6

Radius: 12.4

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.61 AU - 3.99 AU

Year: 4066 Days

Day: 10 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,800,724 km

• M1: 154,983 km (0.071 R)
• M2: 610,210 km (0.067 R)
• M3: 1,462,918 km (0.052 R)
• M4: 1,898,696 km (0.1 R)
• M5: 2,347,639 km (0.074 R)
• M6: 3,075,433 km (0.078 R)
• M7: 3,844,067 km (0.105 R)
• M8: 5,654,351 km (0.045 R)
• M9: 6,839,615 km (0.102 R)
• M10: 8,183,901 km (0.119 R)
• M11: 8,937,276 km (0.116 R)
• M12: 9,388,314 km (0.111 R)
• M13: 12,514,311 km (0.059 R)
• M14: 15,946,235 km (0.1 R)
• M15: 20,798,742 km (0.115 R)
• M16: 22,269,737 km (0.1 R)
• M17: 23,523,816 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.6

Radius: 8.8

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.24 AU - 3.64 AU

Year: 4327 Days

Day: 8.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,800,724 km

• M1: 109,506 km (0.042 R)
• M2: 421,866 km (0.086 R)
• M3: 1,125,724 km (0.118 R)
• M4: 2,444,728 km (0.099 R)
• M5: 3,418,311 km (0.083 R)
• M6: 5,124,625 km (0.076 R)
• M7: 5,705,812 km (0.092 R)
• M8: 12,347,060 km (0.1 R)
• M9: 12,658,523 km (0.088 R)
• M10: 15,190,168 km (0.059 R)
• M11: 17,645,667 km (0.093 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.9

Radius: 13.2

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 4.61 AU - 4.93 AU

Year: 7066 Days

Day: 12.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,800,724 km

• M1: 164,258 km (0.107 R)
• M2: 604,076 km (0.051 R)
• M3: 1,266,196 km (0.114 R)
• M4: 1,721,572 km (0.042 R)
• M5: 3,097,424 km (0.071 R)
• M6: 3,730,223 km (0.048 R)
• M7: 4,190,536 km (0.049 R)
• M8: 5,052,668 km (0.088 R)
• M9: 6,259,624 km (0.086 R)
• M10: 6,807,152 km (0.039 R)
• M11: 8,769,577 km (0.094 R)
• M12: 9,723,263 km (0.086 R)
• M13: 11,582,466 km (0.1 R)
• M14: 13,499,712 km (0.103 R)
• M15: 14,830,385 km (0.1 R)
• M16: 19,924,192 km (0.106 R)
• M17: 21,493,324 km (0.086 R)
• M18: 22,505,204 km (0.071 R)
• M19: 23,304,805 km (0.101 R)
• M20: 26,078,948 km (0.088 R)
• M21: 28,599,672 km (0.075 R)
• M22: 31,476,290 km (0.087 R)
• M23: 33,395,032 km (0.114 R)
• M24: 34,646,268 km (0.11 R)
• M25: 36,145,239 km (0.067 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 15,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit