🌌 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 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.3

Radius: 10.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.44 AU - 0.64 AU

Year: 279 Days

Day: 13.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,585,913 km

• M1: 131,347 km (0.075 R)
• M2: 460,013 km (0.097 R)
• M3: 1,019,210 km (0.116 R)
• M4: 1,406,519 km (0.062 R)
• M5: 1,815,819 km (0.05 R)
• M6: 2,176,200 km (0.087 R)
• M7: 2,692,612 km (0.102 R)
• M8: 3,024,719 km (0.065 R)
• M9: 3,492,362 km (0.086 R)
• M10: 3,971,973 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.7

Radius: 13.9

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.78 AU - 1.02 AU

Year: 600 Days

Day: 7.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,585,913 km

• M1: 176,376 km (0.086 R)
• M2: 643,720 km (0.03 R)
• M3: 1,088,325 km (0.066 R)
• M4: 2,339,711 km (0.117 R)
• M5: 3,000,933 km (0.042 R)
• M6: 3,513,605 km (0.064 R)
• M7: 4,431,987 km (0.106 R)
• M8: 5,066,730 km (0.052 R)
• M9: 5,817,412 km (0.12 R)
• M10: 7,298,282 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.3

Radius: 10.2

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.87 AU - 1.15 AU

Year: 713 Days

Day: 13.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,585,913 km

• M1: 126,859 km (0.101 R)
• M2: 499,956 km (0.103 R)
• M3: 943,215 km (0.082 R)
• M4: 1,302,100 km (0.068 R)
• M5: 1,787,246 km (0.092 R)
• M6: 2,116,660 km (0.114 R)
• M7: 2,722,681 km (0.105 R)
• M8: 4,001,743 km (0.115 R)
• M9: 4,539,547 km (0.111 R)
• M10: 4,947,650 km (0.046 R)
• M11: 5,435,938 km (0.101 R)
• M12: 6,218,335 km (0.071 R)
• M13: 7,074,184 km (0.092 R)
• M14: 7,813,796 km (0.093 R)
• M15: 8,681,015 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.5

Radius: 12.3

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.16 AU - 1.22 AU

Year: 912 Days

Day: 11.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,585,913 km

• M1: 153,039 km (0.06 R)
• M2: 562,787 km (0.065 R)
• M3: 977,173 km (0.07 R)
• M4: 2,160,941 km (0.076 R)
• M5: 2,924,489 km (0.101 R)
• M6: 3,443,593 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.4

Radius: 14.4

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.29 AU - 2.05 AU

Year: 1517 Days

Day: 7.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,585,913 km

• M1: 180,714 km (0.119 R)
• M2: 866,770 km (0.108 R)
• M3: 1,382,434 km (0.094 R)
• M4: 2,056,073 km (0.026 R)
• M5: 2,594,177 km (0.095 R)
• M6: 3,648,094 km (0.083 R)
• M7: 6,547,899 km (0.075 R)
• M8: 8,143,809 km (0.095 R)
• M9: 10,077,511 km (0.109 R)
• M10: 10,892,371 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.6

Radius: 14.8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.26 AU - 2.7 AU

Year: 2745 Days

Day: 8.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,585,913 km

• M1: 184,604 km (0.064 R)
• M2: 900,729 km (0.064 R)
• M3: 2,095,567 km (0.108 R)
• M4: 2,928,229 km (0.046 R)
• M5: 3,646,598 km (0.063 R)
• M6: 6,243,766 km (0.08 R)
• M7: 7,761,586 km (0.101 R)
• M8: 8,464,846 km (0.082 R)
• M9: 10,356,212 km (0.087 R)
• M10: 13,484,303 km (0.072 R)
• M11: 16,296,145 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412

Radius: 3.5

Gravity: 33.63 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 6.57 AU - 6.95 AU

Year: 12355 Days

Day: 21.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,585,913 km

• M1: 44,281 km (0.107 R)
• M2: 245,041 km (0.111 R)
• M3: 388,655 km (0.066 R)
• M4: 1,214,286 km (0.088 R)
• M5: 1,762,113 km (0.092 R)
• M6: 2,325,349 km (0.074 R)
• M7: 2,783,119 km (0.085 R)
• M8: 3,491,764 km (0.082 R)
• M9: 4,062,480 km (0.119 R)
• M10: 8,438,068 km (0.116 R)
• M11: 9,313,664 km (0.068 R)
• M12: 13,669,057 km (0.085 R)
• M13: 14,293,927 km (0.068 R)
• M14: 15,068,694 km (0.053 R)
• M15: 15,466,475 km (0.053 R)
• M16: 18,827,191 km (0.054 R)
• M17: 21,792,221 km (0.12 R)
• M18: 23,606,095 km (0.069 R)
• M19: 25,799,499 km (0.071 R)
• M20: 26,848,629 km (0.082 R)
• M21: 38,087,319 km (0.057 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 14,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit