🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.79 AU - 1.25 AU

Year: 360 Days

Day: 13.5 Hours

Environment

Temp: 103 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 105,176,660 km

• M1: 298,149 km (0.086 R)
• M2: 463,305 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.35 AU - 1.47 AU

Year: 586 Days

Day: 31.5 Hours

Environment

Temp: -9 °C

Axial Tilt: 27.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 105,176,660 km

• M1: 36,053 km (0.099 R)
• M2: 575,653 km (0.045 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.28 AU - 3.68 AU

Year: 1800 Days

Day: 32.3 Hours

Environment

Temp: -83 °C

Axial Tilt: 116.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.72 AU - 5.64 AU

Year: 3542 Days

Day: 36 Hours

Environment

Temp: -133 °C

Axial Tilt: 70.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.09 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.2

Radius: 11.9

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.31 AU - 7.67 AU

Year: 7171 Days

Day: 8.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 105,176,660 km

• M1: 148,551 km (0.074 R)
• M2: 873,951 km (0.104 R)
• M3: 1,592,021 km (0.114 R)
• M4: 2,396,408 km (0.083 R)
• M5: 4,167,946 km (0.116 R)
• M6: 5,341,542 km (0.094 R)
• M7: 5,955,042 km (0.117 R)
• M8: 7,362,160 km (0.107 R)
• M9: 7,958,607 km (0.107 R)
• M10: 8,673,385 km (0.072 R)
• M11: 9,248,440 km (0.088 R)
• M12: 9,848,776 km (0.057 R)
• M13: 12,293,504 km (0.106 R)
• M14: 14,374,710 km (0.057 R)
• M15: 17,851,664 km (0.089 R)
• M16: 18,421,183 km (0.089 R)
• M17: 21,772,923 km (0.117 R)
• M18: 25,155,032 km (0.093 R)
• M19: 26,325,635 km (0.066 R)
• M20: 28,969,777 km (0.06 R)
• M21: 29,856,145 km (0.112 R)
• M22: 31,579,363 km (0.081 R)
• M23: 33,906,657 km (0.119 R)
• M24: 35,001,563 km (0.091 R)
• M25: 35,446,019 km (0.044 R)
• M26: 35,894,214 km (0.102 R)
• M27: 36,459,843 km (0.117 R)
• M28: 36,916,566 km (0.08 R)
• M29: 37,841,529 km (0.098 R)
• M30: 41,077,481 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.3

Radius: 8.1

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.75 AU - 8.97 AU

Year: 7709 Days

Day: 10.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 105,176,660 km

• M1: 101,128 km (0.093 R)
• M2: 513,121 km (0.111 R)
• M3: 1,255,425 km (0.039 R)
• M4: 2,360,056 km (0.105 R)
• M5: 3,190,773 km (0.104 R)
• M6: 5,271,530 km (0.074 R)
• M7: 7,376,970 km (0.111 R)
• M8: 8,279,195 km (0.111 R)
• M9: 8,716,619 km (0.09 R)
• M10: 13,212,484 km (0.12 R)
• M11: 14,312,178 km (0.11 R)
• M12: 15,117,463 km (0.047 R)
• M13: 15,831,494 km (0.086 R)
• M14: 16,630,197 km (0.111 R)
• M15: 18,642,737 km (0.068 R)
• M16: 21,104,220 km (0.119 R)
• M17: 21,770,529 km (0.038 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.6

Radius: 12.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.64 AU - 12.4 AU

Year: 11937 Days

Day: 13.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 105,176,660 km

• M1: 164,857 km (0.103 R)
• M2: 613,202 km (0.099 R)
• M3: 1,626,129 km (0.107 R)
• M4: 2,319,665 km (0.107 R)
• M5: 3,299,381 km (0.115 R)
• M6: 4,850,412 km (0.071 R)
• M7: 7,382,805 km (0.081 R)
• M8: 9,632,308 km (0.115 R)
• M9: 10,637,905 km (0.075 R)
• M10: 12,487,832 km (0.039 R)
• M11: 13,107,616 km (0.029 R)
• M12: 13,812,970 km (0.105 R)
• M13: 14,208,357 km (0.094 R)
• M14: 16,226,881 km (0.068 R)
• M15: 18,668,617 km (0.098 R)
• M16: 19,315,479 km (0.104 R)
• M17: 25,235,515 km (0.082 R)
• M18: 26,126,520 km (0.119 R)
• M19: 27,244,016 km (0.055 R)
• M20: 27,658,103 km (0.112 R)
• M21: 29,033,207 km (0.063 R)
• M22: 29,682,910 km (0.117 R)
• M23: 30,899,440 km (0.1 R)
• M24: 34,265,691 km (0.096 R)
• M25: 38,126,513 km (0.081 R)
• M26: 41,036,342 km (0.118 R)
• M27: 44,949,672 km (0.105 R)
• M28: 50,962,160 km (0.09 R)
• M29: 53,672,126 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 828.9

Radius: 5.1

Gravity: 31.87 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 18.58 AU - 19.92 AU

Year: 29548 Days

Day: 17 Hours

Environment

Temp: -196 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 105,176,660 km

• M1: 74,350 km (0.116 R)
• M2: 982,260 km (0.075 R)
• M3: 1,276,818 km (0.045 R)
• M4: 1,609,224 km (0.068 R)
• M5: 2,132,368 km (0.097 R)
• M6: 2,930,024 km (0.098 R)
• M7: 3,806,667 km (0.03 R)
• M8: 3,979,902 km (0.102 R)
• M9: 4,846,073 km (0.094 R)
• M10: 6,640,500 km (0.097 R)
• M11: 7,576,235 km (0.026 R)
• M12: 11,116,468 km (0.104 R)
• M13: 12,812,310 km (0.053 R)
• M14: 14,588,784 km (0.109 R)
• M15: 15,624,002 km (0.101 R)
• M16: 16,892,442 km (0.092 R)
• M17: 17,361,581 km (0.099 R)
• M18: 17,743,055 km (0.09 R)
• M19: 18,032,976 km (0.062 R)
• M20: 19,529,703 km (0.081 R)
• M21: 20,360,869 km (0.105 R)
• M22: 22,767,898 km (0.117 R)
• M23: 22,995,736 km (0.068 R)
• M24: 24,993,765 km (0.052 R)
• M25: 26,097,199 km (0.104 R)
• M26: 26,850,424 km (0.09 R)
• M27: 31,819,318 km (0.051 R)
• M28: 37,367,603 km (0.083 R)
• M29: 38,323,983 km (0.09 R)
• M30: 43,004,152 km (0.078 R)
• M31: 44,942,342 km (0.107 R)
• M32: 47,307,035 km (0.101 R)
• M33: 47,678,188 km (0.082 R)
• M34: 47,864,437 km (0.082 R)
• M35: 48,614,222 km (0.119 R)
• M36: 52,481,027 km (0.063 R)
• M37: 54,692,682 km (0.108 R)
• M38: 60,165,870 km (0.104 R)
• M39: 73,170,413 km (0.109 R)
• M40: 76,435,835 km (0.082 R)
• M41: 93,643,330 km (0.106 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 20,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit