🌌 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: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.53 AU - 0.59 AU

Year: 266 Days

Day: 43.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.53 AU - 0.73 AU

Year: 318 Days

Day: 13.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.3

Radius: 12.2

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.57 AU - 0.85 AU

Year: 380 Days

Day: 5.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 22,491,063 km

• M1: 151,692 km (0.082 R)
• M2: 555,606 km (0.108 R)
• M3: 1,100,592 km (0.053 R)
• M4: 1,587,383 km (0.071 R)
• M5: 2,203,128 km (0.084 R)
• M6: 3,192,419 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.5

Radius: 12.3

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.64 AU - 1 AU

Year: 472 Days

Day: 11.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,491,063 km

• M1: 159,771 km (0.103 R)
• M2: 574,456 km (0.101 R)
• M3: 960,418 km (0.093 R)
• M4: 1,346,530 km (0.107 R)
• M5: 1,847,534 km (0.081 R)
• M6: 2,452,657 km (0.107 R)
• M7: 3,245,675 km (0.116 R)
• M8: 4,520,997 km (0.094 R)
• M9: 5,045,338 km (0.058 R)
• M10: 5,592,716 km (0.072 R)
• M11: 6,179,439 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.3

Radius: 12.8

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.16 AU - 1.38 AU

Year: 910 Days

Day: 8.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,491,063 km

• M1: 159,172 km (0.118 R)
• M2: 625,469 km (0.104 R)
• M3: 1,190,949 km (0.081 R)
• M4: 1,936,694 km (0.104 R)
• M5: 3,000,036 km (0.104 R)
• M6: 3,431,177 km (0.083 R)
• M7: 5,665,271 km (0.096 R)
• M8: 6,786,059 km (0.119 R)
• M9: 7,604,359 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.9

Radius: 10.2

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.15 AU - 1.57 AU

Year: 1008 Days

Day: 6.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,491,063 km

• M1: 129,552 km (0.112 R)
• M2: 501,452 km (0.065 R)
• M3: 912,996 km (0.093 R)
• M4: 1,709,604 km (0.057 R)
• M5: 2,142,541 km (0.102 R)
• M6: 2,554,533 km (0.095 R)
• M7: 3,204,536 km (0.071 R)
• M8: 3,701,500 km (0.114 R)
• M9: 4,620,929 km (0.094 R)
• M10: 5,219,021 km (0.042 R)
• M11: 6,012,189 km (0.092 R)
• M12: 6,547,600 km (0.118 R)
• M13: 7,137,913 km (0.076 R)
• M14: 8,742,500 km (0.052 R)
• M15: 9,373,952 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.2

Radius: 13.1

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.32 AU - 1.72 AU

Year: 1192 Days

Day: 14.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,491,063 km

• M1: 163,062 km (0.098 R)
• M2: 805,435 km (0.054 R)
• M3: 1,225,207 km (0.034 R)
• M4: 1,640,640 km (0.092 R)
• M5: 2,162,437 km (0.045 R)
• M6: 2,602,105 km (0.108 R)
• M7: 3,075,433 km (0.066 R)
• M8: 3,710,626 km (0.059 R)
• M9: 4,330,709 km (0.109 R)
• M10: 4,763,944 km (0.112 R)
• M11: 5,380,437 km (0.079 R)
• M12: 6,241,522 km (0.084 R)
• M13: 6,819,269 km (0.037 R)
• M14: 7,828,157 km (0.099 R)
• M15: 9,582,641 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.5

Radius: 10.8

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.59 AU - 3.17 AU

Year: 3108 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 22,491,063 km

• M1: 134,488 km (0.104 R)
• M2: 528,080 km (0.12 R)
• M3: 953,088 km (0.071 R)
• M4: 2,178,893 km (0.085 R)
• M5: 3,910,788 km (0.109 R)
• M6: 5,221,414 km (0.071 R)
• M7: 5,963,420 km (0.098 R)
• M8: 6,331,281 km (0.092 R)
• M9: 6,744,171 km (0.041 R)
• M10: 8,438,367 km (0.097 R)
• M11: 9,346,875 km (0.097 R)
• M12: 9,883,333 km (0.074 R)
• M13: 10,239,077 km (0.049 R)
• M14: 11,018,033 km (0.114 R)
• M15: 13,209,791 km (0.076 R)
• M16: 14,534,331 km (0.085 R)
• M17: 15,255,093 km (0.061 R)
• M18: 16,162,105 km (0.088 R)
• M19: 16,712,177 km (0.106 R)
• M20: 17,849,868 km (0.101 R)
• M21: 21,375,292 km (0.079 R)
• M22: 23,058,567 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.4

Radius: 11.4

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.34 AU - 4.58 AU

Year: 5989 Days

Day: 13.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 22,491,063 km

• M1: 141,819 km (0.116 R)
• M2: 747,391 km (0.099 R)
• M3: 1,347,278 km (0.117 R)
• M4: 1,892,712 km (0.091 R)
• M5: 2,369,331 km (0.115 R)
• M6: 2,965,479 km (0.106 R)
• M7: 4,120,973 km (0.073 R)
• M8: 4,843,680 km (0.111 R)
• M9: 5,401,530 km (0.116 R)
• M10: 6,034,479 km (0.084 R)
• M11: 7,563,369 km (0.117 R)
• M12: 8,234,166 km (0.084 R)
• M13: 8,987,092 km (0.062 R)
• M14: 10,061,803 km (0.09 R)
• M15: 11,574,238 km (0.12 R)
• M16: 12,198,659 km (0.109 R)
• M17: 12,573,103 km (0.119 R)
• M18: 13,685,812 km (0.115 R)
• M19: 16,170,183 km (0.119 R)
• M20: 17,216,621 km (0.064 R)
• M21: 17,756,519 km (0.04 R)
• M22: 18,238,224 km (0.074 R)
• M23: 21,390,551 km (0.117 R)
• M24: 22,811,880 km (0.047 R)
• M25: 23,793,841 km (0.041 R)
• M26: 24,633,533 km (0.079 R)
• M27: 29,801,392 km (0.087 R)
• M28: 32,076,775 km (0.072 R)
• M29: 33,831,409 km (0.054 R)
• M30: 34,465,704 km (0.116 R)
• M31: 35,867,286 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.5

Radius: 7.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.57 AU - 6.61 AU

Year: 9556 Days

Day: 18.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,491,063 km

• M1: 97,089 km (0.092 R)
• M2: 660,325 km (0.07 R)
• M3: 1,159,383 km (0.103 R)
• M4: 1,965,866 km (0.041 R)
• M5: 2,392,519 km (0.11 R)
• M6: 3,120,312 km (0.087 R)
• M7: 3,966,887 km (0.117 R)
• M8: 5,750,093 km (0.12 R)
• M9: 7,014,943 km (0.088 R)
• M10: 8,525,433 km (0.109 R)
• M11: 10,044,300 km (0.105 R)
• M12: 14,192,350 km (0.089 R)
• M13: 15,202,435 km (0.092 R)
• M14: 16,422,256 km (0.071 R)
• M15: 18,875,811 km (0.116 R)
• M16: 19,848,047 km (0.091 R)
• M17: 21,045,279 km (0.108 R)
• M18: 21,760,207 km (0.101 R)
• M19: 22,290,083 km (0.053 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 20,064 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit