🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.02 AU - 1.42 AU

Year: 502 Days

Day: 45.6 Hours

Environment

Temp: 7 °C

Axial Tilt: 34.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.4 AU - 2.54 AU

Year: 1447 Days

Day: 34.1 Hours

Environment

Temp: -90 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.08 AU - 3.9 AU

Year: 2430 Days

Day: 38.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,970,596 km

• M1: 704,008 km (0.094 R)
• M2: 2,064,600 km (0.059 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.59 AU - 4.57 AU

Year: 3072 Days

Day: 27.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,970,596 km

• M1: 1,501,215 km (0.057 R)
• M2: 2,113,818 km (0.065 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.99 AU - 4.17 AU

Year: 3072 Days

Day: 22.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 10

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.64 AU - 10.3 AU

Year: 10015 Days

Day: 6.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,970,596 km

• M1: 124,316 km (0.058 R)
• M2: 446,101 km (0.076 R)
• M3: 769,382 km (0.111 R)
• M4: 1,358,349 km (0.059 R)
• M5: 1,997,730 km (0.095 R)
• M6: 2,396,707 km (0.034 R)
• M7: 3,658,715 km (0.077 R)
• M8: 4,090,006 km (0.089 R)
• M9: 4,465,048 km (0.103 R)
• M10: 5,251,633 km (0.084 R)
• M11: 5,909,116 km (0.114 R)
• M12: 7,429,928 km (0.081 R)
• M13: 14,376,505 km (0.095 R)
• M14: 15,591,838 km (0.092 R)
• M15: 18,380,043 km (0.082 R)
• M16: 26,573,369 km (0.103 R)
• M17: 30,742,362 km (0.037 R)
• M18: 31,625,588 km (0.119 R)
• M19: 36,787,762 km (0.058 R)
• M20: 39,438,786 km (0.107 R)
• M21: 45,117,820 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.4

Radius: 3.5

Gravity: 55.71 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 13.79 AU - 18.61 AU

Year: 24307 Days

Day: 23 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 52,970,596 km

• M1: 44,431 km (0.098 R)
• M2: 189,241 km (0.085 R)
• M3: 341,382 km (0.106 R)
• M4: 844,630 km (0.114 R)
• M5: 1,002,755 km (0.113 R)
• M6: 1,346,979 km (0.119 R)
• M7: 1,881,941 km (0.037 R)
• M8: 2,004,013 km (0.082 R)
• M9: 2,241,724 km (0.104 R)
• M10: 3,784,078 km (0.076 R)
• M11: 4,146,853 km (0.113 R)
• M12: 4,319,339 km (0.119 R)
• M13: 4,827,523 km (0.108 R)
• M14: 6,361,051 km (0.069 R)
• M15: 8,408,298 km (0.088 R)
• M16: 10,157,995 km (0.085 R)
• M17: 10,856,018 km (0.096 R)
• M18: 11,517,839 km (0.117 R)
• M19: 12,776,107 km (0.103 R)
• M20: 14,356,608 km (0.116 R)
• M21: 15,234,299 km (0.053 R)
• M22: 15,978,549 km (0.098 R)
• M23: 17,272,271 km (0.086 R)
• M24: 17,449,844 km (0.12 R)
• M25: 18,634,210 km (0.08 R)
• M26: 20,959,559 km (0.091 R)
• M27: 21,365,119 km (0.115 R)
• M28: 21,983,108 km (0.101 R)
• M29: 22,507,000 km (0.108 R)
• M30: 25,711,536 km (0.036 R)
• M31: 26,293,172 km (0.088 R)
• M32: 27,122,094 km (0.06 R)
• M33: 28,090,441 km (0.071 R)
• M34: 34,389,708 km (0.117 R)
• M35: 35,095,361 km (0.085 R)
• M36: 36,389,981 km (0.086 R)
• M37: 44,664,539 km (0.1 R)
• M38: 58,389,994 km (0.04 R)
• M39: 61,642,102 km (0.05 R)
• M40: 62,473,567 km (0.06 R)
• M41: 64,371,665 km (0.108 R)
• M42: 73,273,635 km (0.115 R)
• M43: 73,972,407 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.3

Radius: 6.6

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 16.23 AU - 17.37 AU

Year: 25670 Days

Day: 16 Hours

Environment

Temp: -198 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,970,596 km

• M1: 92,451 km (0.113 R)
• M2: 319,691 km (0.053 R)
• M3: 859,889 km (0.112 R)
• M4: 1,719,478 km (0.106 R)
• M5: 2,253,842 km (0.074 R)
• M6: 3,292,350 km (0.108 R)
• M7: 7,306,210 km (0.068 R)
• M8: 13,369,711 km (0.073 R)
• M9: 15,012,595 km (0.103 R)
• M10: 16,785,330 km (0.112 R)
• M11: 31,205,966 km (0.073 R)
• M12: 42,349,512 km (0.053 R)
• M13: 48,651,172 km (0.087 R)
• M14: 52,181,233 km (0.099 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: 252 - 17,874 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit