🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.6

Radius: 14.3

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.74 AU - 0.94 AU

Year: 505 Days

Day: 6.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,532,781 km

• M1: 177,872 km (0.108 R)
• M2: 741,108 km (0.112 R)
• M3: 1,196,633 km (0.093 R)
• M4: 1,942,678 km (0.073 R)
• M5: 2,945,283 km (0.074 R)
• M6: 3,564,618 km (0.109 R)
• M7: 4,269,972 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57

Radius: 11.8

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.84 AU - 0.9 AU

Year: 532 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 47,532,781 km

• M1: 146,756 km (0.091 R)
• M2: 763,847 km (0.105 R)
• M3: 1,167,013 km (0.032 R)
• M4: 1,710,053 km (0.072 R)
• M5: 2,439,941 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.8

Radius: 14.8

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.84 AU - 1.12 AU

Year: 636 Days

Day: 9.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,532,781 km

• M1: 184,155 km (0.084 R)
• M2: 725,101 km (0.1 R)
• M3: 1,312,422 km (0.08 R)
• M4: 1,831,377 km (0.083 R)
• M5: 2,479,286 km (0.07 R)
• M6: 3,490,118 km (0.116 R)
• M7: 4,272,366 km (0.116 R)
• M8: 4,937,927 km (0.107 R)
• M9: 6,284,008 km (0.089 R)
• M10: 7,210,617 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.6

Radius: 14.4

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.44 AU - 1.82 AU

Year: 1365 Days

Day: 5.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,532,781 km

• M1: 179,069 km (0.086 R)
• M2: 709,244 km (0.047 R)
• M3: 1,487,751 km (0.1 R)
• M4: 1,953,599 km (0.049 R)
• M5: 2,495,592 km (0.05 R)
• M6: 3,220,393 km (0.119 R)
• M7: 4,148,648 km (0.101 R)
• M8: 4,757,811 km (0.051 R)
• M9: 5,711,198 km (0.062 R)
• M10: 7,816,040 km (0.063 R)
• M11: 10,743,221 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.2

Radius: 9.9

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.04 AU - 2.68 AU

Year: 2378 Days

Day: 7.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,532,781 km

• M1: 123,119 km (0.12 R)
• M2: 435,180 km (0.083 R)
• M3: 747,989 km (0.098 R)
• M4: 1,213,388 km (0.085 R)
• M5: 1,549,984 km (0.097 R)
• M6: 2,035,279 km (0.098 R)
• M7: 2,504,568 km (0.065 R)
• M8: 3,147,240 km (0.092 R)
• M9: 3,947,888 km (0.117 R)
• M10: 4,414,932 km (0.08 R)
• M11: 5,019,757 km (0.071 R)
• M12: 5,634,753 km (0.099 R)
• M13: 6,275,331 km (0.041 R)
• M14: 6,762,123 km (0.106 R)
• M15: 7,169,628 km (0.066 R)
• M16: 7,949,780 km (0.091 R)
• M17: 8,696,573 km (0.072 R)
• M18: 9,087,173 km (0.048 R)
• M19: 9,647,267 km (0.027 R)
• M20: 10,733,797 km (0.052 R)
• M21: 11,538,035 km (0.045 R)
• M22: 12,494,863 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.3

Radius: 9.1

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.87 AU - 3.73 AU

Year: 3933 Days

Day: 13 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,532,781 km

• M1: 113,246 km (0.07 R)
• M2: 675,734 km (0.062 R)
• M3: 1,122,732 km (0.096 R)
• M4: 1,673,701 km (0.043 R)
• M5: 2,382,196 km (0.077 R)
• M6: 2,782,520 km (0.112 R)
• M7: 3,467,379 km (0.043 R)
• M8: 5,192,392 km (0.108 R)
• M9: 6,281,016 km (0.066 R)
• M10: 9,037,656 km (0.049 R)
• M11: 11,217,596 km (0.114 R)
• M12: 11,853,537 km (0.089 R)
• M13: 12,937,972 km (0.113 R)
• M14: 14,087,033 km (0.045 R)
• M15: 15,206,923 km (0.043 R)
• M16: 16,587,262 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 9.1

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.81 AU - 4.29 AU

Year: 5347 Days

Day: 12.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,532,781 km

• M1: 117,434 km (0.062 R)
• M2: 878,140 km (0.115 R)
• M3: 1,469,949 km (0.114 R)
• M4: 1,803,851 km (0.056 R)
• M5: 2,277,777 km (0.11 R)
• M6: 2,660,897 km (0.107 R)
• M7: 3,724,688 km (0.061 R)
• M8: 4,008,026 km (0.037 R)
• M9: 6,384,688 km (0.096 R)
• M10: 8,301,784 km (0.101 R)
• M11: 9,734,633 km (0.073 R)
• M12: 13,638,987 km (0.06 R)
• M13: 14,582,202 km (0.108 R)
• M14: 18,227,753 km (0.09 R)
• M15: 27,257,779 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340

Radius: 6.2

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.18 AU - 8.22 AU

Year: 14017 Days

Day: 24.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,532,781 km

• M1: 77,043 km (0.119 R)
• M2: 397,482 km (0.106 R)
• M3: 809,773 km (0.093 R)
• M4: 1,283,101 km (0.077 R)
• M5: 1,490,892 km (0.045 R)
• M6: 1,798,017 km (0.114 R)
• M7: 2,077,017 km (0.105 R)
• M8: 2,559,620 km (0.045 R)
• M9: 2,849,091 km (0.047 R)
• M10: 3,468,875 km (0.083 R)
• M11: 3,929,637 km (0.097 R)
• M12: 4,174,977 km (0.104 R)
• M13: 11,441,993 km (0.072 R)
• M14: 13,290,873 km (0.068 R)
• M15: 15,666,787 km (0.116 R)
• M16: 16,215,212 km (0.046 R)
• M17: 18,766,754 km (0.097 R)
• M18: 20,097,427 km (0.085 R)
• M19: 20,500,593 km (0.095 R)
• M20: 21,657,882 km (0.113 R)
• M21: 25,110,601 km (0.104 R)
• M22: 29,634,141 km (0.094 R)
• M23: 30,791,131 km (0.077 R)
• M24: 36,909,834 km (0.056 R)
• M25: 39,367,428 km (0.089 R)
• M26: 39,618,902 km (0.026 R)
• M27: 43,522,658 km (0.087 R)
• M28: 47,107,023 km (0.06 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 10,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit