🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.49 AU - 0.61 AU

Year: 268 Days

Day: 39.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.55 AU - 0.73 AU

Year: 336 Days

Day: 34.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,160,310 km

• M1: 35,604 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.9

Radius: 8.5

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.94 AU - 1.04 AU

Year: 646 Days

Day: 14.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,160,310 km

• M1: 106,065 km (0.091 R)
• M2: 407,355 km (0.055 R)
• M3: 988,094 km (0.037 R)
• M4: 1,509,443 km (0.105 R)
• M5: 1,833,322 km (0.12 R)
• M6: 2,203,726 km (0.086 R)
• M7: 2,602,255 km (0.112 R)
• M8: 3,083,960 km (0.089 R)
• M9: 3,637,023 km (0.062 R)
• M10: 4,108,556 km (0.101 R)
• M11: 4,557,948 km (0.105 R)
• M12: 5,379,539 km (0.088 R)
• M13: 5,752,786 km (0.116 R)
• M14: 6,296,425 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.7

Radius: 13.7

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.96 AU - 1.28 AU

Year: 778 Days

Day: 11.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,160,310 km

• M1: 170,542 km (0.079 R)
• M2: 715,826 km (0.084 R)
• M3: 1,211,144 km (0.076 R)
• M4: 1,710,502 km (0.083 R)
• M5: 2,637,261 km (0.079 R)
• M6: 3,581,223 km (0.056 R)
• M7: 4,092,848 km (0.043 R)
• M8: 4,916,534 km (0.072 R)
• M9: 6,260,820 km (0.11 R)
• M10: 6,916,807 km (0.061 R)
• M11: 7,961,449 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.7

Radius: 13.6

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.29 AU - 1.83 AU

Year: 1278 Days

Day: 6.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,160,310 km

• M1: 169,794 km (0.057 R)
• M2: 593,156 km (0.113 R)
• M3: 1,047,335 km (0.091 R)
• M4: 1,581,249 km (0.088 R)
• M5: 3,258,840 km (0.098 R)
• M6: 4,194,276 km (0.076 R)
• M7: 5,464,212 km (0.099 R)
• M8: 6,031,038 km (0.068 R)
• M9: 6,869,235 km (0.07 R)
• M10: 7,530,757 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.3

Radius: 14.1

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.16 AU - 6.16 AU

Year: 7689 Days

Day: 13 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,160,310 km

• M1: 175,478 km (0.11 R)
• M2: 652,696 km (0.041 R)
• M3: 2,351,978 km (0.074 R)
• M4: 3,508,968 km (0.059 R)
• M5: 5,217,675 km (0.064 R)
• M6: 6,712,157 km (0.07 R)
• M7: 8,038,043 km (0.106 R)
• M8: 8,680,716 km (0.084 R)
• M9: 14,011,337 km (0.059 R)
• M10: 15,917,213 km (0.063 R)
• M11: 16,610,749 km (0.086 R)
• M12: 18,467,259 km (0.117 R)
• M13: 20,238,498 km (0.089 R)
• M14: 25,798,302 km (0.105 R)
• M15: 26,317,706 km (0.041 R)
• M16: 27,021,115 km (0.042 R)
• M17: 32,400,804 km (0.025 R)

Asteroid Belt

Center: 7.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.6

Radius: 4.5

Gravity: 19.44 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 9.32 AU - 9.86 AU

Year: 19482 Days

Day: 23.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,160,310 km

• M1: 68,665 km (0.111 R)
• M2: 664,663 km (0.066 R)
• M3: 1,508,844 km (0.098 R)
• M4: 1,682,976 km (0.067 R)
• M5: 2,562,163 km (0.062 R)
• M6: 3,075,882 km (0.052 R)
• M7: 3,253,006 km (0.116 R)
• M8: 7,407,339 km (0.078 R)
• M9: 8,991,430 km (0.109 R)
• M10: 9,889,616 km (0.091 R)
• M11: 12,617,384 km (0.102 R)
• M12: 12,875,889 km (0.091 R)
• M13: 16,336,237 km (0.057 R)
• M14: 18,237,327 km (0.074 R)
• M15: 19,240,979 km (0.111 R)
• M16: 21,632,750 km (0.116 R)
• M17: 22,190,002 km (0.064 R)
• M18: 22,377,897 km (0.079 R)
• M19: 25,943,113 km (0.066 R)
• M20: 28,298,382 km (0.075 R)
• M21: 33,183,201 km (0.088 R)
• M22: 34,423,816 km (0.102 R)
• M23: 43,985,364 km (0.114 R)
• M24: 44,729,015 km (0.078 R)
• M25: 47,944,322 km (0.06 R)
• M26: 48,415,855 km (0.084 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: 249 - 10,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit