🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.9

Radius: 8.3

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.7 AU - 0.76 AU

Year: 409 Days

Day: 8.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,038,769 km

• M1: 103,223 km (0.106 R)
• M2: 556,953 km (0.113 R)
• M3: 825,930 km (0.055 R)
• M4: 1,388,268 km (0.062 R)
• M5: 2,618,262 km (0.075 R)
• M6: 3,083,960 km (0.08 R)
• M7: 3,355,031 km (0.086 R)
• M8: 3,759,095 km (0.12 R)
• M9: 4,251,871 km (0.111 R)
• M10: 4,634,243 km (0.065 R)
• M11: 5,316,708 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.1

Radius: 8

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.78 AU - 1.14 AU

Year: 617 Days

Day: 12.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,038,769 km

• M1: 99,483 km (0.098 R)
• M2: 430,094 km (0.092 R)
• M3: 699,071 km (0.116 R)
• M4: 958,922 km (0.118 R)
• M5: 1,246,599 km (0.117 R)
• M6: 1,525,449 km (0.039 R)
• M7: 1,829,432 km (0.065 R)
• M8: 2,118,306 km (0.118 R)
• M9: 2,407,179 km (0.053 R)
• M10: 2,755,443 km (0.096 R)
• M11: 3,809,809 km (0.062 R)
• M12: 4,862,978 km (0.12 R)
• M13: 5,196,731 km (0.106 R)
• M14: 5,726,008 km (0.074 R)
• M15: 6,213,398 km (0.092 R)
• M16: 7,122,055 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.8

Radius: 13.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.53 AU - 2.15 AU

Year: 1637 Days

Day: 13.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,038,769 km

• M1: 167,998 km (0.113 R)
• M2: 618,438 km (0.056 R)
• M3: 1,305,391 km (0.045 R)
• M4: 2,330,735 km (0.081 R)
• M5: 3,053,741 km (0.113 R)
• M6: 4,181,111 km (0.047 R)
• M7: 5,232,485 km (0.102 R)
• M8: 5,656,146 km (0.106 R)
• M9: 6,429,417 km (0.077 R)
• M10: 7,937,513 km (0.102 R)
• M11: 11,536,988 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.7

Radius: 15

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.82 AU - 2.54 AU

Year: 2112 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,038,769 km

• M1: 186,997 km (0.116 R)
• M2: 727,494 km (0.117 R)
• M3: 1,381,088 km (0.087 R)
• M4: 1,981,424 km (0.102 R)
• M5: 2,768,009 km (0.04 R)
• M6: 4,350,904 km (0.097 R)
• M7: 5,518,067 km (0.068 R)
• M8: 6,017,574 km (0.091 R)
• M9: 8,753,570 km (0.116 R)
• M10: 9,558,107 km (0.119 R)
• M11: 11,143,845 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.9

Radius: 8.1

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.81 AU - 2.87 AU

Year: 3140 Days

Day: 12.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,038,769 km

• M1: 100,829 km (0.065 R)
• M2: 387,608 km (0.096 R)
• M3: 653,892 km (0.074 R)
• M4: 917,933 km (0.067 R)
• M5: 1,209,798 km (0.12 R)
• M6: 1,640,640 km (0.078 R)
• M7: 2,103,496 km (0.037 R)
• M8: 2,453,704 km (0.11 R)
• M9: 3,077,976 km (0.113 R)
• M10: 3,550,107 km (0.062 R)
• M11: 3,823,871 km (0.059 R)
• M12: 4,175,277 km (0.084 R)
• M13: 4,503,046 km (0.07 R)
• M14: 5,462,267 km (0.108 R)
• M15: 6,551,639 km (0.071 R)
• M16: 8,009,021 km (0.086 R)
• M17: 8,310,910 km (0.032 R)
• M18: 8,795,756 km (0.091 R)
• M19: 12,242,491 km (0.056 R)
• M20: 12,643,713 km (0.09 R)
• M21: 13,614,005 km (0.06 R)
• M22: 15,443,138 km (0.092 R)
• M23: 16,176,167 km (0.094 R)
• M24: 17,767,889 km (0.038 R)
• M25: 20,440,455 km (0.117 R)
• M26: 21,068,915 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635

Radius: 12.5

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.85 AU - 4.05 AU

Year: 4204 Days

Day: 7.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,038,769 km

• M1: 155,432 km (0.11 R)
• M2: 562,787 km (0.083 R)
• M3: 993,928 km (0.044 R)
• M4: 1,392,307 km (0.103 R)
• M5: 3,074,984 km (0.079 R)
• M6: 4,933,139 km (0.105 R)
• M7: 5,702,970 km (0.091 R)
• M8: 6,429,417 km (0.063 R)
• M9: 7,381,757 km (0.119 R)
• M10: 8,138,124 km (0.101 R)
• M11: 12,527,924 km (0.086 R)
• M12: 13,107,765 km (0.099 R)
• M13: 14,011,037 km (0.112 R)
• M14: 20,259,292 km (0.079 R)
• M15: 21,535,062 km (0.111 R)
• M16: 26,149,109 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.5

Radius: 12.5

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.81 AU - 4.27 AU

Year: 4369 Days

Day: 6.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,038,769 km

• M1: 157,975 km (0.093 R)
• M2: 714,330 km (0.107 R)
• M3: 1,366,577 km (0.082 R)
• M4: 2,141,045 km (0.101 R)
• M5: 2,699,793 km (0.072 R)
• M6: 7,275,692 km (0.066 R)
• M7: 9,961,722 km (0.081 R)
• M8: 12,232,767 km (0.036 R)
• M9: 13,926,515 km (0.028 R)
• M10: 17,949,201 km (0.103 R)
• M11: 20,320,178 km (0.079 R)
• M12: 21,945,559 km (0.12 R)
• M13: 22,619,497 km (0.068 R)
• M14: 23,307,049 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.3

Radius: 12.8

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.06 AU - 5.62 AU

Year: 8095 Days

Day: 6.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,038,769 km

• M1: 161,416 km (0.084 R)
• M2: 650,152 km (0.068 R)
• M3: 1,268,590 km (0.104 R)
• M4: 1,673,551 km (0.059 R)
• M5: 3,300,727 km (0.074 R)
• M6: 4,497,959 km (0.09 R)
• M7: 7,061,169 km (0.109 R)
• M8: 14,564,998 km (0.117 R)
• M9: 15,043,113 km (0.094 R)
• M10: 15,780,032 km (0.118 R)
• M11: 17,727,796 km (0.088 R)
• M12: 20,642,561 km (0.057 R)
• M13: 22,807,841 km (0.069 R)
• M14: 33,300,336 km (0.107 R)
• M15: 33,714,124 km (0.032 R)
• M16: 34,131,502 km (0.074 R)
• M17: 34,552,171 km (0.118 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: 556 - 11,645 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit