🌌 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: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.68 AU - 0.84 AU

Year: 243 Days

Day: 25.5 Hours

Environment

Temp: 107 °C

Axial Tilt: 16.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.94 AU - 1.36 AU

Year: 453 Days

Day: 19 Hours

Environment

Temp: -4 °C

Axial Tilt: 32 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 82,342,003 km

• M1: 34,557 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.77 AU - 2.65 AU

Year: 1206 Days

Day: 29.5 Hours

Environment

Temp: -74 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.24 AU - 3.18 AU

Year: 1638 Days

Day: 24.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.21 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 11.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698

Radius: 8.6

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 10.83 AU - 12.59 AU

Year: 14710 Days

Day: 12.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,342,003 km

• M1: 106,962 km (0.107 R)
• M2: 423,811 km (0.081 R)
• M3: 806,931 km (0.105 R)
• M4: 1,346,530 km (0.1 R)
• M5: 1,673,551 km (0.089 R)
• M6: 2,427,525 km (0.111 R)
• M7: 2,823,211 km (0.061 R)
• M8: 3,261,682 km (0.048 R)
• M9: 3,916,173 km (0.118 R)
• M10: 4,921,770 km (0.118 R)
• M11: 5,304,441 km (0.11 R)
• M12: 5,706,860 km (0.109 R)
• M13: 6,051,234 km (0.063 R)
• M14: 8,417,124 km (0.082 R)
• M15: 8,813,559 km (0.06 R)
• M16: 14,452,949 km (0.064 R)
• M17: 15,531,999 km (0.106 R)
• M18: 16,280,736 km (0.1 R)
• M19: 18,754,786 km (0.065 R)
• M20: 20,389,143 km (0.116 R)
• M21: 20,924,404 km (0.065 R)
• M22: 21,560,644 km (0.112 R)
• M23: 24,235,453 km (0.11 R)
• M24: 24,836,238 km (0.067 R)
• M25: 29,322,379 km (0.119 R)
• M26: 29,889,954 km (0.036 R)
• M27: 30,813,421 km (0.093 R)
• M28: 32,475,005 km (0.119 R)
• M29: 37,284,876 km (0.096 R)
• M30: 41,686,793 km (0.115 R)
• M31: 46,117,134 km (0.077 R)
• M32: 46,576,699 km (0.095 R)
• M33: 57,477,297 km (0.069 R)
• M34: 59,264,393 km (0.059 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.1

Radius: 7.2

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 13.34 AU - 14.2 AU

Year: 18757 Days

Day: 22.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,342,003 km

• M1: 89,609 km (0.109 R)
• M2: 360,531 km (0.109 R)
• M3: 1,380,788 km (0.054 R)
• M4: 2,180,987 km (0.028 R)
• M5: 3,061,520 km (0.065 R)
• M6: 4,716,821 km (0.05 R)
• M7: 5,392,854 km (0.074 R)
• M8: 6,326,793 km (0.097 R)
• M9: 11,861,017 km (0.028 R)
• M10: 12,660,468 km (0.078 R)
• M11: 12,977,466 km (0.062 R)
• M12: 13,495,523 km (0.111 R)
• M13: 20,656,624 km (0.109 R)
• M14: 25,236,263 km (0.074 R)
• M15: 29,664,510 km (0.06 R)
• M16: 30,562,845 km (0.098 R)
• M17: 36,210,763 km (0.081 R)
• M18: 50,462,055 km (0.039 R)
• M19: 53,535,393 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.9

Radius: 7.8

Gravity: 14.36 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 13.55 AU - 15.13 AU

Year: 19934 Days

Day: 22.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,342,003 km

• M1: 97,089 km (0.09 R)
• M2: 397,332 km (0.108 R)
• M3: 949,049 km (0.098 R)
• M4: 1,460,674 km (0.111 R)
• M5: 2,123,691 km (0.118 R)
• M6: 3,188,978 km (0.096 R)
• M7: 3,839,130 km (0.054 R)
• M8: 4,296,900 km (0.066 R)
• M9: 4,717,718 km (0.095 R)
• M10: 6,060,659 km (0.118 R)
• M11: 7,393,426 km (0.1 R)
• M12: 8,313,004 km (0.111 R)
• M13: 8,635,986 km (0.101 R)
• M14: 9,364,228 km (0.073 R)
• M15: 10,563,854 km (0.06 R)
• M16: 13,337,548 km (0.119 R)
• M17: 13,780,507 km (0.099 R)
• M18: 14,773,987 km (0.096 R)
• M19: 15,168,476 km (0.096 R)
• M20: 16,478,355 km (0.093 R)
• M21: 17,334,354 km (0.12 R)
• M22: 24,502,486 km (0.028 R)
• M23: 25,729,936 km (0.045 R)
• M24: 30,922,927 km (0.103 R)
• M25: 40,955,708 km (0.07 R)
• M26: 43,321,449 km (0.086 R)
• M27: 46,784,490 km (0.111 R)
• M28: 49,368,045 km (0.091 R)
• M29: 56,336,015 km (0.12 R)
• M30: 58,077,185 km (0.106 R)
• M31: 58,468,981 km (0.047 R)
• M32: 60,253,684 km (0.117 R)
• M33: 62,278,940 km (0.087 R)
• M34: 62,689,437 km (0.058 R)
• M35: 73,089,780 km (0.08 R)
• M36: 78,935,915 km (0.102 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 14,153 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit