🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.2

Radius: 9.5

Gravity: 10.96 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.44 AU - 0.74 AU

Year: 313 Days

Day: 5.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,260,776 km

• M1: 118,182 km (0.09 R)
• M2: 454,778 km (0.068 R)
• M3: 783,594 km (0.109 R)
• M4: 1,182,122 km (0.107 R)
• M5: 1,497,175 km (0.119 R)
• M6: 2,001,021 km (0.051 R)
• M7: 2,585,949 km (0.086 R)
• M8: 3,371,786 km (0.1 R)
• M9: 3,940,408 km (0.072 R)
• M10: 4,487,637 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499

Radius: 13.2

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.59 AU - 0.73 AU

Year: 370 Days

Day: 5.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 147.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,260,776 km

• M1: 164,109 km (0.12 R)
• M2: 705,055 km (0.085 R)
• M3: 1,173,296 km (0.049 R)
• M4: 1,593,068 km (0.104 R)
• M5: 2,100,055 km (0.098 R)
• M6: 3,316,435 km (0.075 R)
• M7: 4,720,860 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.8

Radius: 9.1

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.6 AU - 0.94 AU

Year: 466 Days

Day: 7.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,260,776 km

• M1: 113,096 km (0.101 R)
• M2: 691,292 km (0.093 R)
• M3: 1,194,838 km (0.061 R)
• M4: 1,781,711 km (0.053 R)
• M5: 2,241,574 km (0.071 R)
• M6: 2,658,653 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.4

Radius: 8.3

Gravity: 13.84 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.85 AU - 1.33 AU

Year: 786 Days

Day: 12.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,260,776 km

• M1: 103,223 km (0.08 R)
• M2: 424,409 km (0.071 R)
• M3: 706,401 km (0.057 R)
• M4: 1,468,901 km (0.084 R)
• M5: 2,329,538 km (0.032 R)
• M6: 2,649,378 km (0.1 R)
• M7: 2,933,764 km (0.106 R)
• M8: 3,668,289 km (0.084 R)
• M9: 3,943,998 km (0.118 R)
• M10: 4,783,691 km (0.057 R)
• M11: 5,284,096 km (0.073 R)
• M12: 5,576,859 km (0.1 R)
• M13: 6,812,837 km (0.093 R)
• M14: 7,350,192 km (0.117 R)
• M15: 7,740,643 km (0.105 R)
• M16: 8,042,382 km (0.079 R)
• M17: 8,750,129 km (0.116 R)
• M18: 9,077,748 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.3

Radius: 13.2

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.08 AU - 4.12 AU

Year: 5730 Days

Day: 9.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,260,776 km

• M1: 177,722 km (0.074 R)
• M2: 727,345 km (0.072 R)
• M3: 1,201,869 km (0.037 R)
• M4: 1,762,113 km (0.103 R)
• M5: 2,547,652 km (0.096 R)
• M6: 3,814,746 km (0.119 R)
• M7: 5,861,245 km (0.107 R)
• M8: 6,350,729 km (0.061 R)
• M9: 7,027,958 km (0.102 R)
• M10: 8,557,746 km (0.118 R)
• M11: 9,060,694 km (0.077 R)
• M12: 9,483,757 km (0.112 R)
• M13: 10,617,410 km (0.101 R)
• M14: 12,584,472 km (0.065 R)
• M15: 13,235,971 km (0.062 R)
• M16: 13,866,975 km (0.103 R)
• M17: 14,828,739 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.4

Radius: 12.3

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 4.06 AU - 4.68 AU

Year: 6306 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 37,260,776 km

• M1: 165,455 km (0.107 R)
• M2: 956,230 km (0.061 R)
• M3: 1,381,686 km (0.083 R)
• M4: 2,849,391 km (0.071 R)
• M5: 11,903,802 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.1

Radius: 14.3

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.91 AU - 4.89 AU

Year: 6371 Days

Day: 13.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,260,776 km

• M1: 177,872 km (0.069 R)
• M2: 637,287 km (0.079 R)
• M3: 1,352,814 km (0.113 R)
• M4: 2,613,176 km (0.11 R)
• M5: 3,232,212 km (0.047 R)
• M6: 3,759,843 km (0.032 R)
• M7: 4,850,861 km (0.076 R)
• M8: 5,396,145 km (0.1 R)
• M9: 6,818,372 km (0.087 R)
• M10: 7,884,257 km (0.094 R)
• M11: 9,533,573 km (0.099 R)
• M12: 9,979,674 km (0.113 R)
• M13: 12,319,385 km (0.064 R)
• M14: 13,065,728 km (0.116 R)
• M15: 13,955,537 km (0.091 R)
• M16: 14,649,222 km (0.084 R)
• M17: 15,856,178 km (0.082 R)
• M18: 16,357,181 km (0.087 R)
• M19: 16,804,179 km (0.119 R)
• M20: 19,304,408 km (0.078 R)
• M21: 20,312,100 km (0.047 R)
• M22: 22,354,410 km (0.106 R)
• M23: 24,364,407 km (0.068 R)
• M24: 25,626,714 km (0.112 R)
• M25: 28,465,034 km (0.106 R)
• M26: 30,055,259 km (0.076 R)
• M27: 32,802,475 km (0.099 R)
• M28: 34,654,646 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.1

Radius: 6.6

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 4.92 AU - 7.1 AU

Year: 10170 Days

Day: 18.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,260,776 km

• M1: 91,404 km (0.1 R)
• M2: 546,331 km (0.078 R)
• M3: 961,017 km (0.066 R)
• M4: 1,211,294 km (0.108 R)
• M5: 3,121,360 km (0.051 R)
• M6: 3,358,323 km (0.083 R)
• M7: 4,870,308 km (0.084 R)
• M8: 9,115,447 km (0.087 R)
• M9: 10,058,512 km (0.065 R)
• M10: 14,133,109 km (0.107 R)
• M11: 15,955,810 km (0.081 R)
• M12: 17,793,320 km (0.079 R)
• M13: 18,135,600 km (0.087 R)
• M14: 29,507,282 km (0.105 R)
• M15: 29,987,043 km (0.045 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 10,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit