🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.56 AU - 0.66 AU

Year: 303 Days

Day: 34.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.1

Radius: 12.8

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.63 AU - 0.99 AU

Year: 464 Days

Day: 11.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 63.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,080,499 km

• M1: 159,322 km (0.057 R)
• M2: 639,381 km (0.079 R)
• M3: 1,051,673 km (0.093 R)
• M4: 1,827,338 km (0.112 R)
• M5: 2,706,225 km (0.118 R)
• M6: 3,702,697 km (0.088 R)
• M7: 4,113,193 km (0.059 R)
• M8: 4,615,543 km (0.075 R)
• M9: 5,242,059 km (0.066 R)
• M10: 5,979,726 km (0.116 R)
• M11: 6,765,414 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.8

Radius: 9.9

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.81 AU - 0.87 AU

Year: 489 Days

Day: 12.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,080,499 km

• M1: 123,119 km (0.107 R)
• M2: 470,934 km (0.076 R)
• M3: 867,518 km (0.107 R)
• M4: 1,223,112 km (0.094 R)
• M5: 1,882,240 km (0.117 R)
• M6: 2,472,404 km (0.073 R)
• M7: 3,277,839 km (0.049 R)
• M8: 3,616,977 km (0.096 R)
• M9: 3,965,540 km (0.109 R)
• M10: 4,455,623 km (0.094 R)
• M11: 5,367,422 km (0.059 R)
• M12: 5,715,387 km (0.065 R)
• M13: 6,115,561 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636

Radius: 11.2

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.82 AU - 0.98 AU

Year: 543 Days

Day: 10.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,080,499 km

• M1: 139,276 km (0.104 R)
• M2: 496,665 km (0.08 R)
• M3: 930,648 km (0.067 R)
• M4: 1,298,360 km (0.062 R)
• M5: 1,860,250 km (0.1 R)
• M6: 2,324,153 km (0.11 R)
• M7: 2,799,575 km (0.116 R)
• M8: 3,242,833 km (0.094 R)
• M9: 3,785,574 km (0.071 R)
• M10: 4,507,234 km (0.094 R)
• M11: 5,839,403 km (0.102 R)
• M12: 6,299,267 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.3

Radius: 11

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.75 AU - 1.23 AU

Year: 626 Days

Day: 5.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,080,499 km

• M1: 136,732 km (0.072 R)
• M2: 533,466 km (0.101 R)
• M3: 1,006,943 km (0.108 R)
• M4: 1,358,049 km (0.076 R)
• M5: 1,722,320 km (0.065 R)
• M6: 2,235,441 km (0.095 R)
• M7: 2,616,916 km (0.103 R)
• M8: 3,158,161 km (0.1 R)
• M9: 3,882,813 km (0.116 R)
• M10: 4,452,332 km (0.095 R)
• M11: 4,929,848 km (0.076 R)

Asteroid Belt

Center: 2.01 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.5

Radius: 8

Gravity: 14.54 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.97 AU - 3.07 AU

Year: 3337 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,080,499 km

• M1: 99,483 km (0.098 R)
• M2: 352,303 km (0.041 R)
• M3: 634,295 km (0.092 R)
• M4: 1,171,651 km (0.042 R)
• M5: 1,495,380 km (0.087 R)
• M6: 2,266,557 km (0.112 R)
• M7: 2,757,538 km (0.067 R)
• M8: 3,676,517 km (0.07 R)
• M9: 4,810,768 km (0.084 R)
• M10: 5,114,602 km (0.103 R)
• M11: 5,873,811 km (0.044 R)
• M12: 6,133,214 km (0.119 R)
• M13: 6,613,273 km (0.113 R)
• M14: 7,785,073 km (0.111 R)
• M15: 8,063,325 km (0.089 R)
• M16: 8,602,775 km (0.057 R)
• M17: 9,753,931 km (0.06 R)
• M18: 11,399,657 km (0.099 R)
• M19: 16,621,520 km (0.095 R)
• M20: 17,495,022 km (0.11 R)
• M21: 19,715,803 km (0.042 R)
• M22: 20,760,594 km (0.056 R)
• M23: 22,536,470 km (0.086 R)
• M24: 23,678,351 km (0.102 R)
• M25: 25,310,763 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.1

Radius: 14.5

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.6 AU - 4.84 AU

Year: 6520 Days

Day: 11.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,080,499 km

• M1: 180,265 km (0.053 R)
• M2: 672,143 km (0.11 R)
• M3: 1,123,630 km (0.095 R)
• M4: 1,833,023 km (0.103 R)
• M5: 2,547,203 km (0.066 R)
• M6: 3,672,777 km (0.096 R)
• M7: 4,402,665 km (0.093 R)
• M8: 5,888,322 km (0.068 R)
• M9: 6,927,877 km (0.067 R)
• M10: 7,686,787 km (0.107 R)
• M11: 8,168,343 km (0.118 R)
• M12: 8,885,216 km (0.108 R)
• M13: 10,157,247 km (0.052 R)
• M14: 10,639,849 km (0.094 R)
• M15: 12,342,722 km (0.112 R)
• M16: 15,010,950 km (0.072 R)
• M17: 17,488,889 km (0.086 R)
• M18: 18,969,758 km (0.12 R)
• M19: 22,099,645 km (0.068 R)
• M20: 26,545,394 km (0.086 R)
• M21: 27,093,970 km (0.095 R)
• M22: 27,743,673 km (0.08 R)
• M23: 28,308,704 km (0.087 R)
• M24: 32,899,564 km (0.079 R)
• M25: 35,591,877 km (0.094 R)
• M26: 36,821,870 km (0.063 R)
• M27: 37,504,635 km (0.072 R)
• M28: 38,195,777 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 243 - 14,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit