🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.4

Radius: 11.3

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.8 AU - 0.92 AU

Year: 551 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,825,085 km

• M1: 141,520 km (0.106 R)
• M2: 564,882 km (0.071 R)
• M3: 1,530,985 km (0.117 R)
• M4: 2,216,143 km (0.085 R)
• M5: 2,584,902 km (0.102 R)
• M6: 2,984,029 km (0.114 R)
• M7: 3,387,943 km (0.062 R)
• M8: 4,152,538 km (0.096 R)
• M9: 4,539,248 km (0.077 R)
• M10: 5,188,802 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 14.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.91 AU - 1.19 AU

Year: 743 Days

Day: 12.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,825,085 km

• M1: 177,423 km (0.118 R)
• M2: 698,323 km (0.038 R)
• M3: 1,169,706 km (0.045 R)
• M4: 1,889,122 km (0.088 R)
• M5: 2,331,782 km (0.109 R)
• M6: 3,250,163 km (0.033 R)
• M7: 4,194,724 km (0.092 R)
• M8: 5,554,569 km (0.106 R)
• M9: 6,606,242 km (0.103 R)
• M10: 7,507,719 km (0.052 R)
• M11: 8,024,579 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389

Radius: 13.7

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.85 AU - 2.26 AU

Year: 2026 Days

Day: 9.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,825,085 km

• M1: 170,392 km (0.086 R)
• M2: 678,726 km (0.104 R)
• M3: 1,306,588 km (0.074 R)
• M4: 1,995,935 km (0.072 R)
• M5: 2,494,544 km (0.074 R)
• M6: 3,179,703 km (0.066 R)
• M7: 4,573,955 km (0.098 R)
• M8: 5,259,712 km (0.06 R)
• M9: 6,176,746 km (0.054 R)
• M10: 7,436,660 km (0.071 R)
• M11: 8,271,117 km (0.107 R)
• M12: 8,711,234 km (0.084 R)
• M13: 10,665,580 km (0.12 R)
• M14: 11,187,826 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.1

Radius: 9.8

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.77 AU - 3.45 AU

Year: 3786 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,825,085 km

• M1: 122,221 km (0.107 R)
• M2: 587,471 km (0.097 R)
• M3: 965,804 km (0.11 R)
• M4: 1,767,050 km (0.108 R)
• M5: 2,112,771 km (0.109 R)
• M6: 2,456,397 km (0.05 R)
• M7: 2,960,991 km (0.099 R)
• M8: 3,594,837 km (0.105 R)
• M9: 3,911,685 km (0.111 R)
• M10: 4,675,233 km (0.105 R)
• M11: 6,135,009 km (0.077 R)
• M12: 8,233,268 km (0.069 R)
• M13: 8,599,634 km (0.098 R)
• M14: 9,365,275 km (0.096 R)
• M15: 10,900,598 km (0.11 R)
• M16: 11,982,191 km (0.113 R)
• M17: 12,597,188 km (0.088 R)
• M18: 14,675,252 km (0.041 R)
• M19: 16,680,013 km (0.05 R)
• M20: 17,446,852 km (0.088 R)
• M21: 19,050,840 km (0.079 R)
• M22: 22,266,446 km (0.083 R)
• M23: 23,195,898 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464

Radius: 9.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.27 AU - 4.55 AU

Year: 6392 Days

Day: 9.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,825,085 km

• M1: 115,340 km (0.041 R)
• M2: 527,482 km (0.12 R)
• M3: 1,049,429 km (0.112 R)
• M4: 1,424,920 km (0.051 R)
• M5: 1,917,246 km (0.102 R)
• M6: 3,283,224 km (0.116 R)
• M7: 4,464,449 km (0.068 R)
• M8: 5,207,352 km (0.057 R)
• M9: 6,376,460 km (0.113 R)
• M10: 7,459,698 km (0.087 R)
• M11: 8,045,074 km (0.091 R)
• M12: 8,582,280 km (0.093 R)
• M13: 9,516,519 km (0.038 R)
• M14: 12,371,295 km (0.109 R)
• M15: 13,087,121 km (0.119 R)
• M16: 17,654,045 km (0.114 R)
• M17: 21,107,960 km (0.109 R)
• M18: 22,129,564 km (0.095 R)
• M19: 22,955,045 km (0.094 R)
• M20: 23,723,230 km (0.101 R)
• M21: 26,547,189 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588

Radius: 10.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.66 AU - 6.2 AU

Year: 8734 Days

Day: 7.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,825,085 km

• M1: 135,835 km (0.1 R)
• M2: 486,492 km (0.095 R)
• M3: 960,119 km (0.091 R)
• M4: 1,346,530 km (0.098 R)
• M5: 1,736,382 km (0.087 R)
• M6: 2,357,363 km (0.03 R)
• M7: 3,319,278 km (0.086 R)
• M8: 3,716,909 km (0.095 R)
• M9: 4,665,509 km (0.052 R)
• M10: 7,737,202 km (0.078 R)
• M11: 8,271,266 km (0.036 R)
• M12: 10,959,540 km (0.1 R)
• M13: 12,612,596 km (0.118 R)
• M14: 16,141,909 km (0.097 R)
• M15: 17,358,888 km (0.107 R)
• M16: 18,854,867 km (0.106 R)
• M17: 19,974,756 km (0.102 R)
• M18: 22,759,820 km (0.1 R)
• M19: 25,077,989 km (0.055 R)
• M20: 26,615,855 km (0.118 R)
• M21: 27,454,949 km (0.082 R)
• M22: 30,178,528 km (0.115 R)
• M23: 31,605,841 km (0.112 R)
• M24: 38,944,814 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.8

Radius: 7.7

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.66 AU - 10.46 AU

Year: 17287 Days

Day: 17.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,825,085 km

• M1: 95,892 km (0.114 R)
• M2: 346,618 km (0.107 R)
• M3: 600,935 km (0.097 R)
• M4: 1,204,113 km (0.118 R)
• M5: 1,897,499 km (0.041 R)
• M6: 2,405,833 km (0.052 R)
• M7: 2,669,574 km (0.068 R)
• M8: 3,692,375 km (0.115 R)
• M9: 3,954,769 km (0.025 R)
• M10: 4,649,053 km (0.094 R)
• M11: 5,096,051 km (0.087 R)
• M12: 5,647,170 km (0.108 R)
• M13: 6,036,124 km (0.071 R)
• M14: 8,060,333 km (0.106 R)
• M15: 9,119,785 km (0.119 R)
• M16: 10,043,253 km (0.103 R)
• M17: 12,986,142 km (0.037 R)
• M18: 18,323,046 km (0.065 R)
• M19: 22,951,305 km (0.066 R)
• M20: 27,413,810 km (0.1 R)
• M21: 29,905,961 km (0.086 R)
• M22: 36,522,525 km (0.086 R)
• M23: 42,411,445 km (0.107 R)
• M24: 42,706,751 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.5

Radius: 7.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 7.67 AU - 10.41 AU

Year: 18761 Days

Day: 23.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,825,085 km

• M1: 93,199 km (0.11 R)
• M2: 545,733 km (0.084 R)
• M3: 867,069 km (0.073 R)
• M4: 1,570,030 km (0.086 R)
• M5: 2,064,899 km (0.069 R)
• M6: 2,432,761 km (0.111 R)
• M7: 2,750,506 km (0.107 R)
• M8: 3,827,462 km (0.105 R)
• M9: 4,966,350 km (0.087 R)
• M10: 5,841,498 km (0.081 R)
• M11: 6,283,559 km (0.092 R)
• M12: 7,057,878 km (0.099 R)
• M13: 9,040,798 km (0.085 R)
• M14: 9,375,747 km (0.089 R)
• M15: 10,430,712 km (0.105 R)
• M16: 11,272,200 km (0.12 R)
• M17: 12,566,670 km (0.064 R)
• M18: 12,878,881 km (0.067 R)
• M19: 24,354,683 km (0.088 R)
• M20: 25,831,364 km (0.109 R)
• M21: 27,803,662 km (0.108 R)
• M22: 30,151,900 km (0.116 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 11,735 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit