🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.43 AU - 0.69 AU

Year: 266 Days

Day: 17.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,080,333 km

• M1: 162,314 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.4

Radius: 8.7

Gravity: 12.04 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.69 AU - 0.95 AU

Year: 472 Days

Day: 6.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 98,080,333 km

• M1: 108,309 km (0.099 R)
• M2: 379,380 km (0.052 R)
• M3: 750,981 km (0.108 R)
• M4: 1,128,866 km (0.063 R)
• M5: 1,609,224 km (0.037 R)
• M6: 1,918,593 km (0.066 R)
• M7: 2,383,692 km (0.117 R)
• M8: 2,691,266 km (0.091 R)
• M9: 3,025,467 km (0.116 R)
• M10: 3,488,473 km (0.033 R)
• M11: 4,026,277 km (0.056 R)
• M12: 5,132,553 km (0.056 R)
• M13: 5,792,430 km (0.096 R)
• M14: 6,468,462 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.2

Radius: 11.5

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.99 AU - 1.39 AU

Year: 825 Days

Day: 10 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 98,080,333 km

• M1: 143,016 km (0.117 R)
• M2: 533,167 km (0.102 R)
• M3: 1,224,010 km (0.108 R)
• M4: 1,844,392 km (0.085 R)
• M5: 3,048,805 km (0.081 R)
• M6: 3,512,857 km (0.104 R)
• M7: 3,987,681 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.9

Radius: 9.5

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.79 AU - 4.21 AU

Year: 5087 Days

Day: 10.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 98,080,333 km

• M1: 118,482 km (0.11 R)
• M2: 416,181 km (0.035 R)
• M3: 772,224 km (0.1 R)
• M4: 1,168,509 km (0.083 R)
• M5: 1,534,425 km (0.047 R)
• M6: 2,220,780 km (0.089 R)
• M7: 3,388,990 km (0.076 R)
• M8: 4,071,605 km (0.106 R)
• M9: 4,445,899 km (0.038 R)
• M10: 5,008,537 km (0.074 R)
• M11: 7,090,041 km (0.073 R)
• M12: 8,968,542 km (0.113 R)
• M13: 9,691,548 km (0.072 R)
• M14: 10,134,657 km (0.091 R)
• M15: 11,594,882 km (0.101 R)
• M16: 12,765,486 km (0.078 R)
• M17: 13,190,643 km (0.055 R)
• M18: 14,811,236 km (0.095 R)
• M19: 15,760,285 km (0.099 R)
• M20: 18,714,095 km (0.036 R)
• M21: 20,035,344 km (0.031 R)
• M22: 22,170,105 km (0.111 R)
• M23: 22,784,803 km (0.098 R)
• M24: 24,615,432 km (0.106 R)
• M25: 32,822,820 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.7

Radius: 7

Gravity: 11.12 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 9.2 AU - 12.14 AU

Year: 22161 Days

Day: 16.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 98,080,333 km

• M1: 87,365 km (0.096 R)
• M2: 1,412,204 km (0.04 R)
• M3: 1,944,922 km (0.067 R)
• M4: 5,672,901 km (0.1 R)
• M5: 8,903,018 km (0.058 R)
• M6: 9,455,034 km (0.109 R)
• M7: 10,029,490 km (0.115 R)
• M8: 10,325,395 km (0.101 R)
• M9: 10,810,989 km (0.082 R)
• M10: 11,439,151 km (0.086 R)
• M11: 13,115,993 km (0.093 R)
• M12: 16,617,780 km (0.113 R)
• M13: 18,939,240 km (0.068 R)
• M14: 22,259,116 km (0.115 R)
• M15: 26,169,754 km (0.068 R)
• M16: 26,844,291 km (0.117 R)
• M17: 40,601,760 km (0.054 R)
• M18: 41,353,938 km (0.085 R)
• M19: 48,377,707 km (0.062 R)
• M20: 58,987,637 km (0.093 R)
• M21: 66,375,528 km (0.111 R)
• M22: 69,324,401 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954.5

Radius: 4.4

Gravity: 49.3 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 9.72 AU - 13.28 AU

Year: 24796 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 98,080,333 km

• M1: 158,723 km (0.103 R)
• M2: 706,102 km (0.103 R)
• M3: 1,549,834 km (0.095 R)
• M4: 1,962,724 km (0.035 R)
• M5: 2,396,408 km (0.096 R)
• M6: 3,740,096 km (0.097 R)
• M7: 5,020,056 km (0.098 R)
• M8: 6,188,266 km (0.12 R)
• M9: 8,179,264 km (0.091 R)
• M10: 16,186,490 km (0.07 R)
• M11: 20,495,806 km (0.03 R)
• M12: 24,799,886 km (0.079 R)
• M13: 25,993,228 km (0.115 R)
• M14: 34,257,164 km (0.075 R)
• M15: 38,977,276 km (0.103 R)
• M16: 44,285,607 km (0.071 R)
• M17: 44,458,842 km (0.109 R)
• M18: 51,572,819 km (0.09 R)
• M19: 52,536,379 km (0.09 R)
• M20: 53,905,349 km (0.027 R)
• M21: 55,097,644 km (0.077 R)
• M22: 55,298,105 km (0.069 R)
• M23: 61,108,636 km (0.097 R)
• M24: 69,860,859 km (0.108 R)
• M25: 85,701,927 km (0.057 R)
• M26: 96,326,368 km (0.112 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 14,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit