🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.56 AU - 0.58 AU

Year: 278 Days

Day: 37.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.9

Radius: 10.6

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.65 AU - 0.75 AU

Year: 378 Days

Day: 14.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 10,522,750 km

• M1: 131,796 km (0.1 R)
• M2: 463,305 km (0.092 R)
• M3: 952,041 km (0.106 R)
• M4: 1,340,098 km (0.075 R)
• M5: 2,278,226 km (0.079 R)
• M6: 2,664,787 km (0.111 R)
• M7: 3,282,476 km (0.059 R)
• M8: 3,929,188 km (0.103 R)
• M9: 4,283,436 km (0.099 R)
• M10: 4,644,565 km (0.11 R)
• M11: 5,041,299 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.5

Radius: 14.2

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.05 AU - 2.27 AU

Year: 2050 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 10,522,750 km

• M1: 176,825 km (0.112 R)
• M2: 976,425 km (0.059 R)
• M3: 1,426,864 km (0.101 R)
• M4: 1,945,072 km (0.097 R)
• M5: 3,092,188 km (0.066 R)
• M6: 4,151,042 km (0.09 R)
• M7: 4,599,536 km (0.086 R)
• M8: 5,999,174 km (0.119 R)
• M9: 6,641,697 km (0.113 R)
• M10: 7,258,788 km (0.11 R)
• M11: 7,740,493 km (0.039 R)
• M12: 8,503,143 km (0.115 R)
• M13: 9,399,384 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.5

Radius: 10.4

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.15 AU - 2.61 AU

Year: 2371 Days

Day: 13.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 10,522,750 km

• M1: 132,693 km (0.093 R)
• M2: 673,490 km (0.061 R)
• M3: 1,392,008 km (0.081 R)
• M4: 2,055,026 km (0.085 R)
• M5: 2,627,088 km (0.074 R)
• M6: 3,027,861 km (0.07 R)
• M7: 3,578,381 km (0.109 R)
• M8: 4,706,648 km (0.051 R)
• M9: 5,900,738 km (0.064 R)
• M10: 6,426,575 km (0.083 R)
• M11: 8,819,243 km (0.111 R)
• M12: 9,723,712 km (0.11 R)
• M13: 10,198,536 km (0.082 R)
• M14: 11,263,523 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.2

Radius: 13.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.87 AU - 2.87 AU

Year: 3139 Days

Day: 9.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 10,522,750 km

• M1: 164,109 km (0.067 R)
• M2: 681,418 km (0.115 R)
• M3: 1,176,587 km (0.051 R)
• M4: 1,681,480 km (0.048 R)
• M5: 2,612,428 km (0.025 R)
• M6: 3,211,567 km (0.101 R)
• M7: 3,748,175 km (0.095 R)
• M8: 4,513,817 km (0.063 R)
• M9: 5,602,590 km (0.089 R)
• M10: 6,276,229 km (0.097 R)
• M11: 6,887,935 km (0.098 R)
• M12: 8,231,024 km (0.11 R)
• M13: 9,103,030 km (0.079 R)
• M14: 9,669,707 km (0.083 R)
• M15: 10,756,835 km (0.104 R)
• M16: 11,390,681 km (0.08 R)
• M17: 11,923,848 km (0.087 R)
• M18: 12,603,022 km (0.104 R)
• M19: 13,307,778 km (0.098 R)
• M20: 14,178,587 km (0.117 R)
• M21: 15,983,186 km (0.11 R)
• M22: 17,991,388 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.6

Radius: 11.7

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.09 AU - 3.79 AU

Year: 4120 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 10,522,750 km

• M1: 145,858 km (0.113 R)
• M2: 1,050,476 km (0.042 R)
• M3: 1,465,012 km (0.114 R)
• M4: 2,017,327 km (0.111 R)
• M5: 2,382,047 km (0.1 R)
• M6: 2,931,969 km (0.08 R)
• M7: 3,344,560 km (0.114 R)
• M8: 3,796,046 km (0.089 R)
• M9: 4,647,856 km (0.078 R)
• M10: 5,735,882 km (0.1 R)
• M11: 6,174,054 km (0.11 R)
• M12: 7,150,778 km (0.06 R)
• M13: 8,374,040 km (0.099 R)
• M14: 10,062,252 km (0.104 R)
• M15: 10,788,699 km (0.115 R)
• M16: 11,919,958 km (0.1 R)
• M17: 12,298,291 km (0.094 R)
• M18: 13,840,496 km (0.051 R)
• M19: 17,486,794 km (0.089 R)
• M20: 21,310,965 km (0.073 R)
• M21: 22,223,063 km (0.097 R)
• M22: 23,528,454 km (0.114 R)
• M23: 23,900,055 km (0.056 R)
• M24: 24,502,635 km (0.094 R)
• M25: 27,177,595 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.2

Radius: 13

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.04 AU - 3.98 AU

Year: 4246 Days

Day: 11.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 10,522,750 km

• M1: 161,865 km (0.1 R)
• M2: 2,456,098 km (0.089 R)
• M3: 3,521,235 km (0.113 R)
• M4: 4,275,657 km (0.113 R)
• M5: 5,791,233 km (0.089 R)
• M6: 9,017,012 km (0.109 R)
• M7: 10,214,991 km (0.108 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 18,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit