🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.1

Radius: 12.6

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.62 AU - 0.82 AU

Year: 414 Days

Day: 5.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,110,302 km

• M1: 156,629 km (0.091 R)
• M2: 565,630 km (0.036 R)
• M3: 1,198,578 km (0.098 R)
• M4: 1,605,185 km (0.085 R)
• M5: 2,183,082 km (0.084 R)
• M6: 3,126,595 km (0.105 R)
• M7: 3,813,250 km (0.101 R)
• M8: 4,227,486 km (0.047 R)
• M9: 5,147,812 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.9

Radius: 10.5

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.6 AU - 0.88 AU

Year: 432 Days

Day: 7.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,110,302 km

• M1: 130,599 km (0.119 R)
• M2: 529,876 km (0.06 R)
• M3: 899,233 km (0.049 R)
• M4: 1,743,862 km (0.077 R)
• M5: 2,664,039 km (0.119 R)
• M6: 3,164,444 km (0.088 R)
• M7: 3,503,732 km (0.108 R)
• M8: 4,270,570 km (0.08 R)
• M9: 4,897,086 km (0.116 R)
• M10: 5,385,972 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.2

Radius: 13.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.69 AU - 1.01 AU

Year: 532 Days

Day: 8 Hours

Environment

Temp: -173 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,110,302 km

• M1: 173,234 km (0.106 R)
• M2: 682,465 km (0.083 R)
• M3: 1,191,547 km (0.062 R)
• M4: 1,791,883 km (0.036 R)
• M5: 2,223,473 km (0.112 R)
• M6: 2,743,775 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343

Radius: 12.6

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.98 AU - 1.08 AU

Year: 709 Days

Day: 6.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,110,302 km

• M1: 156,779 km (0.095 R)
• M2: 554,859 km (0.1 R)
• M3: 1,142,180 km (0.096 R)
• M4: 1,551,928 km (0.116 R)
• M5: 2,330,136 km (0.107 R)
• M6: 3,153,374 km (0.109 R)
• M7: 3,614,285 km (0.03 R)
• M8: 4,920,573 km (0.057 R)
• M9: 5,892,959 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.7

Radius: 13.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.62 AU - 1.62 AU

Year: 1399 Days

Day: 14.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,110,302 km

• M1: 167,998 km (0.066 R)
• M2: 649,404 km (0.068 R)
• M3: 1,248,693 km (0.036 R)
• M4: 3,428,334 km (0.082 R)
• M5: 4,621,377 km (0.117 R)
• M6: 5,409,160 km (0.048 R)
• M7: 6,214,146 km (0.047 R)
• M8: 6,769,304 km (0.042 R)
• M9: 8,204,097 km (0.113 R)
• M10: 10,189,859 km (0.109 R)
• M11: 11,347,746 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.8

Radius: 12

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.77 AU - 2.11 AU

Year: 1833 Days

Day: 12.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,110,302 km

• M1: 152,739 km (0.026 R)
• M2: 610,958 km (0.064 R)
• M3: 1,095,056 km (0.046 R)
• M4: 1,527,993 km (0.089 R)
• M5: 2,540,172 km (0.12 R)
• M6: 4,050,213 km (0.056 R)
• M7: 5,110,862 km (0.027 R)
• M8: 5,622,187 km (0.12 R)
• M9: 6,116,459 km (0.048 R)
• M10: 6,639,602 km (0.09 R)
• M11: 7,422,149 km (0.078 R)
• M12: 8,110,149 km (0.102 R)
• M13: 9,648,015 km (0.091 R)
• M14: 10,989,310 km (0.075 R)
• M15: 11,606,401 km (0.076 R)
• M16: 12,533,908 km (0.064 R)
• M17: 14,445,021 km (0.12 R)
• M18: 16,394,131 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.6

Radius: 4.6

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.15 AU - 8.35 AU

Year: 11895 Days

Day: 23 Hours

Environment

Temp: -237 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,110,302 km

• M1: 58,493 km (0.028 R)
• M2: 294,708 km (0.109 R)
• M3: 438,771 km (0.097 R)
• M4: 653,443 km (0.105 R)
• M5: 994,078 km (0.068 R)
• M6: 1,160,281 km (0.07 R)
• M7: 1,589,926 km (0.058 R)
• M8: 1,894,657 km (0.091 R)
• M9: 2,254,739 km (0.095 R)
• M10: 2,717,595 km (0.117 R)
• M11: 3,422,350 km (0.085 R)
• M12: 3,904,654 km (0.108 R)
• M13: 4,188,591 km (0.089 R)
• M14: 4,914,589 km (0.095 R)
• M15: 6,155,504 km (0.087 R)
• M16: 7,242,033 km (0.112 R)
• M17: 12,373,988 km (0.119 R)
• M18: 12,929,445 km (0.094 R)
• M19: 13,099,388 km (0.082 R)
• M20: 14,090,175 km (0.097 R)
• M21: 14,390,866 km (0.115 R)
• M22: 16,089,101 km (0.108 R)
• M23: 21,897,089 km (0.106 R)
• M24: 26,520,112 km (0.111 R)
• M25: 28,194,860 km (0.086 R)
• M26: 32,062,863 km (0.096 R)
• M27: 35,822,557 km (0.111 R)
• M28: 38,915,941 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 499.6

Radius: 4.7

Gravity: 22.62 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.08 AU - 9.28 AU

Year: 14436 Days

Day: 22.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,110,302 km

• M1: 58,493 km (0.092 R)
• M2: 407,056 km (0.107 R)
• M3: 1,387,221 km (0.092 R)
• M4: 2,801,968 km (0.116 R)
• M5: 3,175,664 km (0.081 R)
• M6: 7,148,385 km (0.086 R)
• M7: 9,418,981 km (0.056 R)
• M8: 12,370,697 km (0.098 R)
• M9: 14,087,931 km (0.108 R)
• M10: 16,175,120 km (0.106 R)
• M11: 17,986,601 km (0.047 R)
• M12: 20,520,938 km (0.091 R)
• M13: 27,098,158 km (0.081 R)
• M14: 29,099,030 km (0.105 R)
• M15: 31,764,415 km (0.074 R)
• M16: 33,510,521 km (0.062 R)
• M17: 36,310,246 km (0.117 R)
• M18: 38,737,621 km (0.052 R)
• M19: 41,817,990 km (0.088 R)
• M20: 45,929,688 km (0.063 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: 171 - 15,798 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit