🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.65 AU - 0.87 AU

Year: 243 Days

Day: 34.6 Hours

Environment

Temp: 97 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.23 AU - 1.27 AU

Year: 513 Days

Day: 19.9 Hours

Environment

Temp: 13 °C

Axial Tilt: 26.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.64 AU - 2.28 AU

Year: 1007 Days

Day: 42.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.19 AU - 2.42 AU

Year: 1280 Days

Day: 15.7 Hours

Environment

Temp: -71 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.96 AU - 2.88 AU

Year: 1382 Days

Day: 37.5 Hours

Environment

Temp: -91 °C

Axial Tilt: 87.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.2

Radius: 11.7

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.96 AU - 8.9 AU

Year: 8985 Days

Day: 5.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 101,155,550 km

• M1: 145,559 km (0.094 R)
• M2: 915,240 km (0.088 R)
• M3: 1,986,510 km (0.096 R)
• M4: 3,819,682 km (0.094 R)
• M5: 5,607,975 km (0.065 R)
• M6: 6,847,244 km (0.044 R)
• M7: 7,996,455 km (0.119 R)
• M8: 9,710,847 km (0.109 R)
• M9: 12,259,695 km (0.107 R)
• M10: 13,017,558 km (0.1 R)
• M11: 14,774,735 km (0.111 R)
• M12: 18,988,607 km (0.085 R)
• M13: 19,942,593 km (0.041 R)
• M14: 20,492,964 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.3

Radius: 8.7

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.04 AU - 9.88 AU

Year: 10681 Days

Day: 6.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 101,155,550 km

• M1: 108,309 km (0.098 R)
• M2: 476,918 km (0.07 R)
• M3: 767,138 km (0.099 R)
• M4: 1,571,526 km (0.08 R)
• M5: 2,137,454 km (0.103 R)
• M6: 2,746,617 km (0.113 R)
• M7: 3,831,052 km (0.068 R)
• M8: 4,425,255 km (0.056 R)
• M9: 4,823,035 km (0.112 R)
• M10: 6,050,486 km (0.103 R)
• M11: 7,602,414 km (0.11 R)
• M12: 8,355,789 km (0.111 R)
• M13: 9,907,568 km (0.075 R)
• M14: 10,376,557 km (0.105 R)
• M15: 11,246,918 km (0.12 R)
• M16: 12,047,715 km (0.039 R)
• M17: 13,444,959 km (0.098 R)
• M18: 14,085,088 km (0.086 R)
• M19: 17,745,449 km (0.099 R)
• M20: 21,472,979 km (0.058 R)
• M21: 30,106,871 km (0.077 R)
• M22: 35,122,438 km (0.099 R)
• M23: 48,089,283 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195

Radius: 14.3

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 9.35 AU - 14.41 AU

Year: 15031 Days

Day: 14 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 101,155,550 km

• M1: 177,872 km (0.061 R)
• M2: 988,692 km (0.119 R)
• M3: 1,527,843 km (0.063 R)
• M4: 2,020,918 km (0.118 R)
• M5: 3,957,013 km (0.078 R)
• M6: 5,358,596 km (0.092 R)
• M7: 6,242,121 km (0.057 R)
• M8: 7,374,128 km (0.085 R)
• M9: 9,165,862 km (0.054 R)
• M10: 11,861,316 km (0.06 R)
• M11: 13,477,721 km (0.118 R)
• M12: 14,308,737 km (0.102 R)
• M13: 14,860,753 km (0.07 R)
• M14: 18,694,498 km (0.102 R)
• M15: 20,182,997 km (0.11 R)
• M16: 21,113,346 km (0.116 R)
• M17: 25,034,605 km (0.109 R)
• M18: 26,382,033 km (0.096 R)
• M19: 30,111,209 km (0.057 R)
• M20: 34,945,165 km (0.11 R)
• M21: 36,060,567 km (0.113 R)
• M22: 40,883,452 km (0.045 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 932.4

Radius: 4.1

Gravity: 55.47 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 13.48 AU - 21 AU

Year: 26277 Days

Day: 16.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 101,155,550 km

• M1: 97,089 km (0.102 R)
• M2: 278,252 km (0.045 R)
• M3: 847,771 km (0.044 R)
• M4: 1,329,925 km (0.119 R)
• M5: 1,668,914 km (0.081 R)
• M6: 3,211,118 km (0.098 R)
• M7: 3,618,772 km (0.108 R)
• M8: 4,059,937 km (0.074 R)
• M9: 4,768,133 km (0.088 R)
• M10: 5,511,634 km (0.114 R)
• M11: 7,070,295 km (0.101 R)
• M12: 8,960,464 km (0.082 R)
• M13: 13,541,599 km (0.065 R)
• M14: 15,620,112 km (0.042 R)
• M15: 17,335,252 km (0.091 R)
• M16: 19,473,155 km (0.07 R)
• M17: 19,879,911 km (0.103 R)
• M18: 24,734,662 km (0.069 R)
• M19: 27,307,446 km (0.082 R)
• M20: 28,332,640 km (0.072 R)
• M21: 30,187,953 km (0.094 R)
• M22: 38,261,750 km (0.114 R)
• M23: 42,875,348 km (0.092 R)
• M24: 43,218,376 km (0.076 R)
• M25: 45,849,803 km (0.094 R)
• M26: 55,796,864 km (0.099 R)
• M27: 69,186,023 km (0.119 R)
• M28: 77,757,383 km (0.086 R)
• M29: 82,164,686 km (0.115 R)
• M30: 84,563,936 km (0.098 R)
• M31: 87,284,074 km (0.103 R)
• M32: 87,559,335 km (0.057 R)
• M33: 88,388,406 km (0.063 R)
• M34: 92,041,287 km (0.119 R)
• M35: 94,628,432 km (0.072 R)
• M36: 96,086,413 km (0.089 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: 493 - 17,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit