🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.39 AU - 0.63 AU

Year: 232 Days

Day: 31 Hours

Environment

Temp: -121 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,784,414 km

• M1: 22,140 km (0.057 R)
• M2: 60,587 km (0.041 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.53 AU - 0.65 AU

Year: 288 Days

Day: 15 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,784,414 km

• M1: 46,974 km (0.082 R)
• M2: 390,450 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.3

Radius: 13.3

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.82 AU - 0.96 AU

Year: 534 Days

Day: 14.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,784,414 km

• M1: 165,605 km (0.107 R)
• M2: 753,973 km (0.119 R)
• M3: 1,376,450 km (0.118 R)
• M4: 1,819,110 km (0.107 R)
• M5: 2,662,094 km (0.089 R)
• M6: 3,363,110 km (0.081 R)
• M7: 4,280,294 km (0.053 R)
• M8: 4,964,854 km (0.104 R)
• M9: 5,891,912 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.2

Radius: 11.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.03 AU - 1.53 AU

Year: 921 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,784,414 km

• M1: 147,952 km (0.094 R)
• M2: 528,978 km (0.114 R)
• M3: 942,317 km (0.067 R)
• M4: 1,548,787 km (0.098 R)
• M5: 2,018,225 km (0.109 R)
• M6: 2,744,971 km (0.099 R)
• M7: 3,741,443 km (0.106 R)
• M8: 4,683,610 km (0.09 R)
• M9: 6,699,142 km (0.049 R)
• M10: 7,813,347 km (0.059 R)
• M11: 9,182,916 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.3

Radius: 8.8

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.8 AU - 2.98 AU

Year: 2349 Days

Day: 5.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,784,414 km

• M1: 111,600 km (0.096 R)
• M2: 844,181 km (0.106 R)
• M3: 1,571,974 km (0.098 R)
• M4: 1,906,774 km (0.096 R)
• M5: 2,423,486 km (0.107 R)
• M6: 2,749,310 km (0.085 R)
• M7: 3,378,668 km (0.052 R)
• M8: 3,736,207 km (0.101 R)
• M9: 6,175,251 km (0.11 R)
• M10: 9,677,337 km (0.07 R)
• M11: 12,520,743 km (0.098 R)
• M12: 12,945,601 km (0.028 R)
• M13: 13,221,011 km (0.063 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.1

Radius: 6.4

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 7.3 AU - 7.9 AU

Year: 13322 Days

Day: 24.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,784,414 km

• M1: 79,885 km (0.11 R)
• M2: 298,897 km (0.111 R)
• M3: 578,495 km (0.084 R)
• M4: 1,605,784 km (0.118 R)
• M5: 3,323,466 km (0.106 R)
• M6: 3,801,731 km (0.067 R)
• M7: 4,989,239 km (0.116 R)
• M8: 5,279,907 km (0.113 R)
• M9: 7,811,552 km (0.056 R)
• M10: 9,218,221 km (0.104 R)
• M11: 25,174,928 km (0.096 R)
• M12: 25,552,812 km (0.111 R)
• M13: 29,751,426 km (0.117 R)
• M14: 32,234,900 km (0.101 R)
• M15: 35,087,283 km (0.115 R)
• M16: 41,682,156 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.7

Radius: 3

Gravity: 20.74 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 7.03 AU - 10.97 AU

Year: 17167 Days

Day: 21.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,784,414 km

• M1: 37,250 km (0.098 R)
• M2: 233,672 km (0.084 R)
• M3: 437,873 km (0.118 R)
• M4: 615,146 km (0.102 R)
• M5: 838,047 km (0.07 R)
• M6: 1,078,750 km (0.037 R)
• M7: 1,565,542 km (0.099 R)
• M8: 1,681,181 km (0.074 R)
• M9: 1,787,096 km (0.096 R)
• M10: 2,385,039 km (0.115 R)
• M11: 2,929,575 km (0.062 R)
• M12: 3,105,652 km (0.12 R)
• M13: 3,406,942 km (0.094 R)
• M14: 4,748,536 km (0.069 R)
• M15: 7,125,795 km (0.083 R)
• M16: 7,648,191 km (0.092 R)
• M17: 12,433,528 km (0.087 R)
• M18: 13,547,434 km (0.117 R)
• M19: 13,790,081 km (0.085 R)
• M20: 14,159,588 km (0.032 R)
• M21: 16,174,223 km (0.104 R)
• M22: 16,516,054 km (0.095 R)
• M23: 19,273,442 km (0.116 R)
• M24: 20,840,928 km (0.093 R)
• M25: 22,238,322 km (0.113 R)
• M26: 22,746,057 km (0.078 R)
• M27: 30,272,924 km (0.106 R)
• M28: 30,896,299 km (0.09 R)
• M29: 31,528,200 km (0.101 R)
• M30: 34,142,124 km (0.12 R)
• M31: 36,896,819 km (0.095 R)
• M32: 38,691,544 km (0.109 R)
• M33: 41,300,831 km (0.083 R)
• M34: 43,497,077 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.6

Radius: 7.1

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.99 AU - 11.19 AU

Year: 18883 Days

Day: 20.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,784,414 km

• M1: 88,412 km (0.119 R)
• M2: 445,054 km (0.092 R)
• M3: 850,015 km (0.058 R)
• M4: 1,589,777 km (0.066 R)
• M5: 2,639,954 km (0.089 R)
• M6: 4,753,472 km (0.093 R)
• M7: 7,204,484 km (0.099 R)
• M8: 9,532,077 km (0.094 R)
• M9: 10,739,482 km (0.104 R)
• M10: 12,934,980 km (0.076 R)
• M11: 15,996,800 km (0.049 R)
• M12: 16,797,597 km (0.056 R)
• M13: 17,070,463 km (0.116 R)
• M14: 19,963,387 km (0.095 R)
• M15: 20,346,657 km (0.115 R)
• M16: 33,713,825 km (0.089 R)
• M17: 39,655,404 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.9

Radius: 6.4

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.65 AU - 11.61 AU

Year: 22036 Days

Day: 20 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,784,414 km

• M1: 79,736 km (0.032 R)
• M2: 443,109 km (0.096 R)
• M3: 644,019 km (0.112 R)
• M4: 941,270 km (0.042 R)
• M5: 1,372,261 km (0.118 R)
• M6: 1,692,700 km (0.117 R)
• M7: 2,003,564 km (0.114 R)
• M8: 2,575,477 km (0.078 R)
• M9: 3,117,320 km (0.119 R)
• M10: 3,557,288 km (0.092 R)
• M11: 4,069,062 km (0.088 R)
• M12: 4,359,282 km (0.115 R)
• M13: 4,697,822 km (0.05 R)
• M14: 5,201,219 km (0.091 R)
• M15: 5,504,753 km (0.058 R)
• M16: 6,660,696 km (0.098 R)
• M17: 8,170,587 km (0.111 R)
• M18: 11,088,493 km (0.111 R)
• M19: 13,901,532 km (0.086 R)
• M20: 15,549,502 km (0.115 R)
• M21: 15,941,448 km (0.11 R)
• M22: 16,582,176 km (0.082 R)
• M23: 17,240,107 km (0.109 R)
• M24: 19,954,112 km (0.106 R)
• M25: 22,739,176 km (0.097 R)
• M26: 29,422,012 km (0.086 R)
• M27: 29,780,897 km (0.096 R)
• M28: 38,861,188 km (0.099 R)
• M29: 48,619,308 km (0.045 R)
• M30: 49,794,998 km (0.059 R)
• M31: 52,728,911 km (0.108 R)
• M32: 53,081,364 km (0.097 R)
• M33: 55,775,921 km (0.106 R)
• M34: 57,249,609 km (0.096 R)
• M35: 60,082,394 km (0.084 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 11,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit