🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.63 AU - 0.71 AU

Year: 360 Days

Day: 25 Hours

Environment

Temp: -126 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 14,939,837 km

• M1: 48,619 km (0.117 R)
• M2: 436,975 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.2

Radius: 11.3

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.82 AU - 0.92 AU

Year: 532 Days

Day: 9 Hours

Environment

Temp: -155 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,939,837 km

• M1: 140,622 km (0.102 R)
• M2: 548,725 km (0.056 R)
• M3: 948,002 km (0.09 R)
• M4: 1,466,059 km (0.098 R)
• M5: 1,879,996 km (0.111 R)
• M6: 2,413,014 km (0.062 R)
• M7: 2,847,296 km (0.06 R)
• M8: 3,458,404 km (0.082 R)
• M9: 3,966,887 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.5

Radius: 14.4

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.78 AU - 0.98 AU

Year: 542 Days

Day: 5.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,939,837 km

• M1: 179,069 km (0.088 R)
• M2: 761,752 km (0.085 R)
• M3: 1,293,124 km (0.092 R)
• M4: 1,848,730 km (0.098 R)
• M5: 2,427,973 km (0.115 R)
• M6: 2,949,023 km (0.079 R)
• M7: 4,362,872 km (0.05 R)
• M8: 4,918,329 km (0.045 R)
• M9: 6,283,111 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.6

Radius: 14.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.88 AU - 1.08 AU

Year: 636 Days

Day: 5.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 14,939,837 km

• M1: 179,966 km (0.098 R)
• M2: 629,508 km (0.076 R)
• M3: 1,396,795 km (0.101 R)
• M4: 1,904,530 km (0.106 R)
• M5: 2,516,835 km (0.06 R)
• M6: 3,000,185 km (0.085 R)
• M7: 3,610,694 km (0.035 R)
• M8: 4,682,264 km (0.113 R)
• M9: 5,267,491 km (0.099 R)
• M10: 6,805,357 km (0.108 R)

Asteroid Belt

Center: 1.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.7

Radius: 9

Gravity: 12.03 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.48 AU - 2.06 AU

Year: 1545 Days

Day: 13.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 14,939,837 km

• M1: 111,899 km (0.039 R)
• M2: 395,387 km (0.109 R)
• M3: 950,844 km (0.095 R)
• M4: 1,253,630 km (0.072 R)
• M5: 1,602,044 km (0.103 R)
• M6: 2,216,741 km (0.104 R)
• M7: 2,620,207 km (0.113 R)
• M8: 2,980,738 km (0.066 R)
• M9: 3,260,635 km (0.094 R)
• M10: 3,749,072 km (0.109 R)
• M11: 4,643,668 km (0.05 R)
• M12: 5,374,902 km (0.097 R)
• M13: 6,956,899 km (0.116 R)
• M14: 7,537,788 km (0.054 R)
• M15: 8,423,258 km (0.051 R)
• M16: 9,083,284 km (0.104 R)
• M17: 9,743,459 km (0.117 R)
• M18: 10,435,349 km (0.105 R)
• M19: 11,955,563 km (0.116 R)
• M20: 12,506,831 km (0.078 R)
• M21: 13,660,530 km (0.12 R)
• M22: 14,176,044 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.4

Radius: 8.2

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.44 AU - 2.16 AU

Year: 1584 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 14,939,837 km

• M1: 102,475 km (0.098 R)
• M2: 394,190 km (0.095 R)
• M3: 824,583 km (0.049 R)
• M4: 1,113,008 km (0.118 R)
• M5: 1,392,307 km (0.033 R)
• M6: 1,718,730 km (0.106 R)
• M7: 1,986,061 km (0.12 R)
• M8: 2,257,432 km (0.091 R)
• M9: 2,904,293 km (0.104 R)
• M10: 3,538,289 km (0.078 R)
• M11: 3,905,552 km (0.097 R)
• M12: 4,261,445 km (0.096 R)
• M13: 4,561,538 km (0.063 R)
• M14: 4,956,477 km (0.104 R)
• M15: 6,208,760 km (0.112 R)
• M16: 6,921,295 km (0.108 R)
• M17: 7,824,717 km (0.062 R)
• M18: 8,161,611 km (0.069 R)
• M19: 8,864,571 km (0.037 R)
• M20: 9,417,934 km (0.076 R)
• M21: 10,257,477 km (0.071 R)
• M22: 10,971,209 km (0.107 R)
• M23: 11,429,427 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.9

Radius: 14.9

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.49 AU - 4.13 AU

Year: 3950 Days

Day: 10.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,939,837 km

• M1: 185,651 km (0.079 R)
• M2: 673,340 km (0.057 R)
• M3: 1,817,016 km (0.057 R)
• M4: 2,308,146 km (0.056 R)
• M5: 3,356,378 km (0.093 R)
• M6: 5,925,123 km (0.095 R)
• M7: 8,621,774 km (0.118 R)
• M8: 12,835,497 km (0.107 R)
• M9: 14,501,569 km (0.087 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 19,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit