🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.7 AU - 1.14 AU

Year: 318 Days

Day: 39.3 Hours

Environment

Temp: 173 °C

Axial Tilt: 20.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.48 AU - 1.86 AU

Year: 777 Days

Day: 45.1 Hours

Environment

Temp: -45 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.51 AU - 2.03 AU

Year: 847 Days

Day: 16.7 Hours

Environment

Temp: -47 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.53 AU - 2.37 AU

Year: 980 Days

Day: 40.2 Hours

Environment

Temp: -69 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.95 AU - 4.99 AU

Year: 3988 Days

Day: 25.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,559,091 km

• M1: 32,313 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.2

Radius: 13.3

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.92 AU - 6.2 AU

Year: 4096 Days

Day: 13.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,559,091 km

• M1: 165,455 km (0.092 R)
• M2: 591,360 km (0.095 R)
• M3: 1,334,114 km (0.098 R)
• M4: 1,779,915 km (0.068 R)
• M5: 2,935,559 km (0.068 R)
• M6: 3,516,148 km (0.106 R)
• M7: 4,151,491 km (0.081 R)
• M8: 5,100,988 km (0.061 R)
• M9: 5,944,720 km (0.092 R)
• M10: 7,492,161 km (0.084 R)
• M11: 7,975,511 km (0.116 R)
• M12: 10,512,841 km (0.113 R)
• M13: 11,750,015 km (0.106 R)
• M14: 13,036,108 km (0.108 R)
• M15: 13,928,310 km (0.119 R)
• M16: 14,512,489 km (0.053 R)
• M17: 15,419,352 km (0.11 R)
• M18: 16,850,255 km (0.039 R)
• M19: 18,658,594 km (0.084 R)
• M20: 19,369,035 km (0.102 R)
• M21: 20,344,263 km (0.1 R)
• M22: 21,160,619 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.6

Radius: 10.8

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 9.78 AU - 13 AU

Year: 13834 Days

Day: 13.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,559,091 km

• M1: 136,882 km (0.115 R)
• M2: 509,680 km (0.087 R)
• M3: 1,035,068 km (0.043 R)
• M4: 1,458,130 km (0.117 R)
• M5: 2,107,684 km (0.11 R)
• M6: 2,532,094 km (0.118 R)
• M7: 2,869,886 km (0.031 R)
• M8: 3,721,546 km (0.117 R)
• M9: 4,377,832 km (0.065 R)
• M10: 5,215,281 km (0.086 R)
• M11: 5,805,295 km (0.066 R)
• M12: 6,196,194 km (0.09 R)
• M13: 6,730,857 km (0.03 R)
• M14: 7,340,618 km (0.058 R)
• M15: 16,456,813 km (0.12 R)
• M16: 21,091,804 km (0.109 R)
• M17: 23,070,086 km (0.085 R)
• M18: 24,963,845 km (0.091 R)
• M19: 28,495,851 km (0.103 R)
• M20: 34,588,524 km (0.073 R)
• M21: 38,550,174 km (0.119 R)
• M22: 39,516,278 km (0.113 R)
• M23: 42,219,960 km (0.052 R)
• M24: 47,519,016 km (0.082 R)
• M25: 51,897,895 km (0.091 R)
• M26: 57,785,170 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.3

Radius: 9.8

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 10.37 AU - 13.19 AU

Year: 14551 Days

Day: 13.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,559,091 km

• M1: 122,521 km (0.101 R)
• M2: 428,000 km (0.075 R)
• M3: 788,231 km (0.09 R)
• M4: 1,137,093 km (0.063 R)
• M5: 1,574,966 km (0.075 R)
• M6: 2,401,644 km (0.098 R)
• M7: 3,387,494 km (0.058 R)
• M8: 5,415,892 km (0.113 R)
• M9: 7,050,248 km (0.1 R)
• M10: 9,354,056 km (0.116 R)
• M11: 10,055,520 km (0.108 R)
• M12: 10,908,228 km (0.039 R)
• M13: 12,757,108 km (0.096 R)
• M14: 14,169,761 km (0.082 R)
• M15: 15,314,035 km (0.099 R)
• M16: 21,326,074 km (0.082 R)
• M17: 25,516,759 km (0.096 R)
• M18: 26,142,078 km (0.085 R)
• M19: 27,314,926 km (0.109 R)
• M20: 28,634,080 km (0.059 R)
• M21: 34,336,900 km (0.106 R)
• M22: 44,392,420 km (0.104 R)
• M23: 46,521,946 km (0.106 R)
• M24: 51,975,536 km (0.073 R)
• M25: 56,774,935 km (0.096 R)
• M26: 60,562,604 km (0.096 R)
• M27: 61,302,664 km (0.037 R)

Kuiper Belt

Range: 30.5 - 52.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 13,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit