🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.57 AU - 0.79 AU

Year: 214 Days

Day: 19.1 Hours

Environment

Temp: 99 °C

Axial Tilt: 48.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.63 AU - 0.95 AU

Year: 267 Days

Day: 23.8 Hours

Environment

Temp: 114 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 83,258,957 km

• M1: 510,578 km (0.106 R)
• M2: 632,201 km (0.08 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.98 AU - 1.3 AU

Year: 464 Days

Day: 13.3 Hours

Environment

Temp: -1 °C

Axial Tilt: 25.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.48 AU - 2.84 AU

Year: 1652 Days

Day: 23 Hours

Environment

Temp: -100 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.31 AU - 4.69 AU

Year: 3046 Days

Day: 29.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,258,957 km

• M1: 2,910,277 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.6

Radius: 12

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.59 AU - 6.19 AU

Year: 4765 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,258,957 km

• M1: 149,448 km (0.083 R)
• M2: 720,164 km (0.108 R)
• M3: 1,368,372 km (0.03 R)
• M4: 1,837,062 km (0.09 R)
• M5: 2,232,449 km (0.086 R)
• M6: 2,907,883 km (0.098 R)
• M7: 3,294,444 km (0.069 R)
• M8: 4,105,115 km (0.069 R)
• M9: 4,594,151 km (0.09 R)
• M10: 6,062,603 km (0.027 R)
• M11: 6,698,843 km (0.074 R)
• M12: 7,246,222 km (0.08 R)
• M13: 7,650,286 km (0.085 R)
• M14: 11,092,084 km (0.045 R)
• M15: 12,232,767 km (0.058 R)
• M16: 13,051,965 km (0.053 R)
• M17: 14,692,904 km (0.095 R)
• M18: 15,342,458 km (0.087 R)
• M19: 17,109,060 km (0.065 R)
• M20: 17,646,565 km (0.087 R)
• M21: 19,071,335 km (0.057 R)
• M22: 20,371,340 km (0.12 R)
• M23: 23,731,458 km (0.055 R)
• M24: 24,777,147 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933

Radius: 11.9

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.18 AU - 6.72 AU

Year: 5527 Days

Day: 14.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,258,957 km

• M1: 148,251 km (0.06 R)
• M2: 598,691 km (0.081 R)
• M3: 972,985 km (0.11 R)
• M4: 2,462,979 km (0.104 R)
• M5: 3,246,124 km (0.066 R)
• M6: 3,730,971 km (0.112 R)
• M7: 4,987,144 km (0.119 R)
• M8: 5,543,798 km (0.08 R)
• M9: 6,305,999 km (0.095 R)
• M10: 6,712,756 km (0.074 R)
• M11: 8,723,351 km (0.098 R)
• M12: 12,007,772 km (0.106 R)
• M13: 13,118,985 km (0.11 R)
• M14: 14,124,881 km (0.046 R)
• M15: 15,302,217 km (0.116 R)
• M16: 16,353,291 km (0.077 R)
• M17: 16,799,841 km (0.108 R)
• M18: 17,518,060 km (0.1 R)
• M19: 19,652,672 km (0.041 R)
• M20: 20,230,569 km (0.03 R)
• M21: 25,867,117 km (0.103 R)
• M22: 27,536,330 km (0.108 R)
• M23: 30,316,308 km (0.096 R)
• M24: 31,380,996 km (0.067 R)
• M25: 33,893,193 km (0.118 R)
• M26: 35,357,158 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.5

Radius: 4.3

Gravity: 11.44 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 13.52 AU - 13.84 AU

Year: 19268 Days

Day: 19.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 83,258,957 km

• M1: 53,556 km (0.104 R)
• M2: 579,841 km (0.056 R)
• M3: 737,518 km (0.096 R)
• M4: 1,095,655 km (0.117 R)
• M5: 1,238,072 km (0.088 R)
• M6: 1,447,509 km (0.075 R)
• M7: 2,093,323 km (0.107 R)
• M8: 2,550,793 km (0.085 R)
• M9: 3,095,030 km (0.105 R)
• M10: 3,713,318 km (0.099 R)
• M11: 4,037,647 km (0.09 R)
• M12: 4,867,616 km (0.106 R)
• M13: 5,560,702 km (0.119 R)
• M14: 6,938,050 km (0.106 R)
• M15: 7,598,525 km (0.098 R)
• M16: 8,900,924 km (0.109 R)
• M17: 10,085,589 km (0.066 R)
• M18: 10,292,782 km (0.088 R)
• M19: 10,769,401 km (0.082 R)
• M20: 11,539,830 km (0.102 R)
• M21: 12,703,103 km (0.118 R)
• M22: 13,499,861 km (0.087 R)
• M23: 16,372,440 km (0.1 R)
• M24: 19,149,425 km (0.046 R)
• M25: 22,841,500 km (0.114 R)
• M26: 24,479,448 km (0.097 R)
• M27: 25,042,384 km (0.081 R)
• M28: 28,396,369 km (0.086 R)
• M29: 29,331,804 km (0.113 R)
• M30: 32,711,070 km (0.068 R)
• M31: 33,508,577 km (0.069 R)
• M32: 38,819,899 km (0.104 R)
• M33: 42,746,096 km (0.06 R)
• M34: 45,646,499 km (0.109 R)
• M35: 48,381,447 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.7

Radius: 8

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 13.85 AU - 18.73 AU

Year: 25037 Days

Day: 20.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,258,957 km

• M1: 102,774 km (0.089 R)
• M2: 415,134 km (0.087 R)
• M3: 697,276 km (0.097 R)
• M4: 1,478,326 km (0.111 R)
• M5: 2,106,787 km (0.026 R)
• M6: 2,798,976 km (0.079 R)
• M7: 4,449,789 km (0.073 R)
• M8: 4,994,624 km (0.075 R)
• M9: 5,664,823 km (0.049 R)
• M10: 6,393,514 km (0.085 R)
• M11: 8,299,989 km (0.078 R)
• M12: 9,011,776 km (0.064 R)
• M13: 9,528,038 km (0.067 R)
• M14: 10,370,124 km (0.118 R)
• M15: 10,937,100 km (0.114 R)
• M16: 15,744,428 km (0.065 R)
• M17: 17,092,006 km (0.119 R)
• M18: 18,606,235 km (0.105 R)
• M19: 20,207,830 km (0.093 R)
• M20: 20,794,403 km (0.094 R)
• M21: 21,899,183 km (0.087 R)
• M22: 23,042,710 km (0.054 R)
• M23: 23,899,008 km (0.09 R)
• M24: 26,132,354 km (0.118 R)
• M25: 28,868,350 km (0.085 R)
• M26: 32,850,346 km (0.092 R)
• M27: 37,183,897 km (0.044 R)
• M28: 38,808,979 km (0.118 R)
• M29: 48,339,710 km (0.046 R)
• M30: 50,273,860 km (0.079 R)
• M31: 70,949,034 km (0.081 R)
• M32: 76,939,681 km (0.112 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 18,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit