🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 21 Hours

Environment

Temp: -117 °C

Axial Tilt: 48.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,241,588 km

• M1: 111,899 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 18.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,241,588 km

• M1: 441,314 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581

Radius: 10.2

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.71 AU - 1.03 AU

Year: 524 Days

Day: 8.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,241,588 km

• M1: 128,056 km (0.082 R)
• M2: 460,462 km (0.044 R)
• M3: 824,135 km (0.106 R)
• M4: 1,267,842 km (0.111 R)
• M5: 1,589,328 km (0.065 R)
• M6: 2,181,137 km (0.103 R)
• M7: 2,519,228 km (0.104 R)
• M8: 2,980,438 km (0.058 R)
• M9: 3,350,693 km (0.119 R)
• M10: 4,100,926 km (0.105 R)
• M11: 4,590,560 km (0.103 R)
• M12: 4,943,611 km (0.101 R)
• M13: 5,515,823 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.3

Radius: 12.3

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.21 AU - 2.51 AU

Year: 2341 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,241,588 km

• M1: 163,810 km (0.088 R)
• M2: 556,354 km (0.09 R)
• M3: 989,141 km (0.112 R)
• M4: 1,702,573 km (0.094 R)
• M5: 2,224,221 km (0.109 R)
• M6: 3,201,394 km (0.113 R)
• M7: 3,788,267 km (0.101 R)
• M8: 4,290,018 km (0.102 R)
• M9: 5,091,264 km (0.108 R)
• M10: 5,836,411 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.9

Radius: 12.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.29 AU - 2.57 AU

Year: 2446 Days

Day: 13.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,241,588 km

• M1: 154,235 km (0.09 R)
• M2: 605,123 km (0.105 R)
• M3: 1,007,841 km (0.105 R)
• M4: 1,915,002 km (0.075 R)
• M5: 3,119,265 km (0.118 R)
• M6: 3,976,910 km (0.086 R)
• M7: 4,531,320 km (0.112 R)
• M8: 4,943,462 km (0.118 R)
• M9: 5,539,609 km (0.108 R)
• M10: 6,307,794 km (0.098 R)
• M11: 7,338,823 km (0.103 R)
• M12: 8,664,409 km (0.039 R)
• M13: 9,269,832 km (0.066 R)
• M14: 10,600,954 km (0.119 R)
• M15: 11,594,733 km (0.118 R)
• M16: 13,179,722 km (0.067 R)
• M17: 14,459,981 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363

Radius: 14.3

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.35 AU - 4.81 AU

Year: 5321 Days

Day: 6.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 52.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,241,588 km

• M1: 177,872 km (0.103 R)
• M2: 1,198,429 km (0.059 R)
• M3: 1,724,863 km (0.116 R)
• M4: 2,303,209 km (0.103 R)
• M5: 3,358,472 km (0.057 R)
• M6: 4,160,616 km (0.071 R)
• M7: 5,267,491 km (0.098 R)
• M8: 5,723,465 km (0.057 R)
• M9: 6,562,709 km (0.119 R)
• M10: 9,776,670 km (0.102 R)
• M11: 12,273,159 km (0.088 R)
• M12: 14,483,767 km (0.066 R)
• M13: 15,875,924 km (0.101 R)
• M14: 17,006,286 km (0.057 R)
• M15: 19,553,788 km (0.03 R)
• M16: 24,349,597 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.1

Radius: 6.5

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 9.93 AU - 11.43 AU

Year: 22536 Days

Day: 19.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,241,588 km

• M1: 89,011 km (0.066 R)
• M2: 402,418 km (0.106 R)
• M3: 1,442,722 km (0.103 R)
• M4: 3,428,035 km (0.059 R)
• M5: 4,343,574 km (0.118 R)
• M6: 4,662,367 km (0.109 R)
• M7: 6,386,034 km (0.119 R)
• M8: 6,608,935 km (0.066 R)
• M9: 8,495,214 km (0.105 R)
• M10: 8,902,270 km (0.082 R)
• M11: 12,409,891 km (0.097 R)
• M12: 21,651,300 km (0.078 R)
• M13: 24,161,103 km (0.088 R)
• M14: 34,523,299 km (0.109 R)
• M15: 41,048,609 km (0.119 R)
• M16: 43,793,580 km (0.057 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: 353 - 13,070 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit