🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.53 AU - 0.75 AU

Year: 331 Days

Day: 22.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 140.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,137,470 km

• M1: 142,268 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.4

Radius: 12.3

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.64 AU - 0.74 AU

Year: 370 Days

Day: 15 Hours

Environment

Temp: -130 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,137,470 km

• M1: 153,039 km (0.05 R)
• M2: 627,413 km (0.085 R)
• M3: 1,381,387 km (0.069 R)
• M4: 1,792,182 km (0.056 R)
• M5: 2,293,784 km (0.107 R)
• M6: 2,726,122 km (0.118 R)
• M7: 3,244,628 km (0.091 R)
• M8: 3,888,348 km (0.116 R)
• M9: 4,602,079 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.9

Radius: 11.1

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.39 AU - 2.67 AU

Year: 2598 Days

Day: 11.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 89,137,470 km

• M1: 138,228 km (0.092 R)
• M2: 1,252,284 km (0.1 R)
• M3: 1,741,618 km (0.097 R)
• M4: 2,326,696 km (0.118 R)
• M5: 4,021,191 km (0.057 R)
• M6: 5,273,175 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.4

Radius: 10

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.96 AU - 4.64 AU

Year: 5757 Days

Day: 11.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,137,470 km

• M1: 131,646 km (0.03 R)
• M2: 517,459 km (0.116 R)
• M3: 897,737 km (0.068 R)
• M4: 1,270,385 km (0.072 R)
• M5: 2,090,630 km (0.074 R)
• M6: 2,448,169 km (0.067 R)
• M7: 2,846,698 km (0.096 R)
• M8: 3,775,401 km (0.103 R)
• M9: 4,194,575 km (0.103 R)
• M10: 4,669,249 km (0.108 R)
• M11: 5,698,183 km (0.04 R)
• M12: 6,402,789 km (0.082 R)
• M13: 7,949,631 km (0.087 R)
• M14: 8,715,871 km (0.074 R)
• M15: 9,371,409 km (0.097 R)
• M16: 10,565,499 km (0.12 R)
• M17: 12,566,670 km (0.077 R)
• M18: 13,054,509 km (0.079 R)
• M19: 15,685,935 km (0.101 R)
• M20: 17,066,723 km (0.102 R)
• M21: 18,526,799 km (0.11 R)
• M22: 20,134,527 km (0.118 R)
• M23: 20,533,953 km (0.03 R)
• M24: 21,973,234 km (0.118 R)
• M25: 23,773,046 km (0.087 R)
• M26: 24,822,924 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.2

Radius: 3.7

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 6.57 AU - 8.31 AU

Year: 13103 Days

Day: 20.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,137,470 km

• M1: 58,343 km (0.109 R)
• M2: 221,554 km (0.116 R)
• M3: 1,655,001 km (0.106 R)
• M4: 4,434,978 km (0.105 R)
• M5: 6,070,233 km (0.086 R)
• M6: 6,879,856 km (0.1 R)
• M7: 8,265,432 km (0.102 R)
• M8: 8,918,277 km (0.113 R)
• M9: 9,257,266 km (0.09 R)
• M10: 10,418,594 km (0.108 R)
• M11: 12,130,592 km (0.08 R)
• M12: 13,517,514 km (0.094 R)
• M13: 34,430,249 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.2

Radius: 5.6

Gravity: 28.13 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 9.19 AU - 12.05 AU

Year: 22346 Days

Day: 17.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 89,137,470 km

• M1: 69,713 km (0.087 R)
• M2: 252,072 km (0.115 R)
• M3: 448,345 km (0.062 R)
• M4: 652,097 km (0.115 R)
• M5: 894,446 km (0.114 R)
• M6: 1,139,188 km (0.11 R)
• M7: 1,395,599 km (0.073 R)
• M8: 1,727,107 km (0.068 R)
• M9: 1,962,724 km (0.092 R)
• M10: 2,153,312 km (0.039 R)
• M11: 4,365,266 km (0.108 R)
• M12: 5,434,741 km (0.093 R)
• M13: 6,208,312 km (0.099 R)
• M14: 8,349,356 km (0.095 R)
• M15: 8,626,561 km (0.112 R)
• M16: 8,909,900 km (0.075 R)
• M17: 9,199,371 km (0.099 R)
• M18: 10,937,998 km (0.049 R)
• M19: 12,665,704 km (0.082 R)
• M20: 15,627,742 km (0.108 R)
• M21: 17,628,314 km (0.054 R)
• M22: 18,176,889 km (0.12 R)
• M23: 22,024,098 km (0.114 R)
• M24: 25,792,917 km (0.072 R)
• M25: 26,144,621 km (0.073 R)
• M26: 27,219,333 km (0.075 R)
• M27: 27,829,093 km (0.058 R)
• M28: 33,037,792 km (0.052 R)
• M29: 34,576,406 km (0.116 R)
• M30: 36,161,994 km (0.111 R)
• M31: 45,501,539 km (0.064 R)
• M32: 53,618,270 km (0.077 R)
• M33: 54,768,379 km (0.1 R)
• M34: 55,739,419 km (0.081 R)
• M35: 60,148,217 km (0.06 R)
• M36: 60,973,998 km (0.076 R)
• M37: 63,071,659 km (0.085 R)
• M38: 65,000,125 km (0.039 R)
• M39: 84,930,302 km (0.108 R)
• M40: 87,280,035 km (0.059 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 16,560 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit