🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.39 AU - 0.63 AU

Year: 139 Days

Day: 14.7 Hours

Environment

Temp: 141 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.79 AU - 0.83 AU

Year: 279 Days

Day: 34.3 Hours

Environment

Temp: 46 °C

Axial Tilt: 20.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.64 AU - 2.7 AU

Year: 1224 Days

Day: 24.5 Hours

Environment

Temp: -85 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.2

Radius: 10.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.99 AU - 5.45 AU

Year: 3926 Days

Day: 11.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,042,488 km

• M1: 134,488 km (0.08 R)
• M2: 665,561 km (0.074 R)
• M3: 1,023,848 km (0.106 R)
• M4: 1,641,238 km (0.089 R)
• M5: 2,124,439 km (0.087 R)
• M6: 2,846,099 km (0.05 R)
• M7: 3,297,287 km (0.109 R)
• M8: 3,706,437 km (0.109 R)
• M9: 4,752,724 km (0.1 R)
• M10: 6,864,448 km (0.07 R)
• M11: 7,916,420 km (0.098 R)
• M12: 9,204,009 km (0.058 R)
• M13: 10,054,772 km (0.104 R)
• M14: 11,257,090 km (0.05 R)
• M15: 11,991,616 km (0.119 R)
• M16: 13,945,663 km (0.07 R)
• M17: 14,476,736 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703

Radius: 11.9

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.57 AU - 9.95 AU

Year: 9927 Days

Day: 7.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,042,488 km

• M1: 147,952 km (0.107 R)
• M2: 525,986 km (0.111 R)
• M3: 933,940 km (0.088 R)
• M4: 1,430,156 km (0.082 R)
• M5: 1,856,061 km (0.116 R)
• M6: 2,759,333 km (0.107 R)
• M7: 4,261,894 km (0.118 R)
• M8: 4,786,384 km (0.119 R)
• M9: 5,159,780 km (0.075 R)
• M10: 7,410,929 km (0.044 R)
• M11: 8,616,837 km (0.09 R)
• M12: 9,124,872 km (0.08 R)
• M13: 12,840,284 km (0.068 R)
• M14: 14,834,274 km (0.075 R)
• M15: 19,038,573 km (0.098 R)
• M16: 21,791,174 km (0.068 R)
• M17: 23,439,742 km (0.105 R)
• M18: 25,450,787 km (0.103 R)
• M19: 26,788,939 km (0.077 R)
• M20: 28,985,784 km (0.075 R)
• M21: 29,501,298 km (0.069 R)
• M22: 32,947,136 km (0.12 R)
• M23: 40,498,687 km (0.09 R)
• M24: 41,402,856 km (0.111 R)
• M25: 42,585,278 km (0.086 R)
• M26: 43,790,139 km (0.058 R)
• M27: 46,972,086 km (0.028 R)
• M28: 47,826,888 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.5

Radius: 7.8

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 12.16 AU - 16.8 AU

Year: 21097 Days

Day: 18.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 40,042,488 km

• M1: 97,239 km (0.12 R)
• M2: 346,020 km (0.096 R)
• M3: 785,838 km (0.1 R)
• M4: 1,121,984 km (0.095 R)
• M5: 1,449,603 km (0.086 R)
• M6: 1,724,564 km (0.071 R)
• M7: 2,505,316 km (0.098 R)
• M8: 2,904,742 km (0.118 R)
• M9: 3,244,179 km (0.105 R)
• M10: 3,719,452 km (0.099 R)
• M11: 4,362,573 km (0.115 R)
• M12: 5,463,165 km (0.089 R)
• M13: 5,943,972 km (0.111 R)
• M14: 7,075,381 km (0.09 R)
• M15: 8,982,006 km (0.055 R)
• M16: 17,254,768 km (0.037 R)
• M17: 17,726,899 km (0.098 R)
• M18: 18,697,191 km (0.037 R)
• M19: 19,532,396 km (0.093 R)
• M20: 20,045,367 km (0.087 R)
• M21: 20,567,164 km (0.119 R)
• M22: 23,504,817 km (0.11 R)
• M23: 25,173,881 km (0.036 R)
• M24: 25,781,398 km (0.079 R)
• M25: 30,197,078 km (0.099 R)
• M26: 33,365,112 km (0.066 R)
• M27: 33,730,131 km (0.078 R)
• M28: 35,343,245 km (0.075 R)
• M29: 36,489,763 km (0.069 R)
• M30: 44,774,194 km (0.077 R)
• M31: 45,367,200 km (0.059 R)
• M32: 46,266,582 km (0.119 R)
• M33: 46,568,920 km (0.094 R)
• M34: 51,426,811 km (0.1 R)
• M35: 54,061,379 km (0.076 R)
• M36: 54,565,225 km (0.083 R)
• M37: 57,131,277 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.1

Radius: 5.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 16.96 AU - 18.94 AU

Year: 29118 Days

Day: 18 Hours

Environment

Temp: -200 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,042,488 km

• M1: 77,791 km (0.12 R)
• M2: 466,895 km (0.07 R)
• M3: 1,170,603 km (0.104 R)
• M4: 1,391,859 km (0.112 R)
• M5: 2,368,583 km (0.058 R)
• M6: 5,036,362 km (0.067 R)
• M7: 6,866,243 km (0.09 R)
• M8: 8,237,607 km (0.073 R)
• M9: 12,038,290 km (0.081 R)
• M10: 17,478,566 km (0.05 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 17,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit