🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.59 AU - 0.75 AU

Year: 349 Days

Day: 30.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,532,614 km

• M1: 110,553 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265

Radius: 8.4

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.08 AU - 1.18 AU

Year: 764 Days

Day: 13.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,532,614 km

• M1: 104,419 km (0.104 R)
• M2: 378,782 km (0.062 R)
• M3: 948,899 km (0.082 R)
• M4: 1,406,818 km (0.046 R)
• M5: 1,930,860 km (0.119 R)
• M6: 2,317,271 km (0.076 R)
• M7: 3,525,872 km (0.066 R)
• M8: 3,808,313 km (0.084 R)
• M9: 4,161,813 km (0.076 R)
• M10: 4,981,908 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 14.7

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.39 AU - 2.11 AU

Year: 1472 Days

Day: 14.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,532,614 km

• M1: 182,958 km (0.08 R)
• M2: 678,277 km (0.102 R)
• M3: 1,884,036 km (0.098 R)
• M4: 2,766,364 km (0.041 R)
• M5: 3,513,156 km (0.067 R)
• M6: 4,232,872 km (0.095 R)
• M7: 4,990,435 km (0.036 R)
• M8: 5,495,777 km (0.117 R)
• M9: 6,492,248 km (0.056 R)
• M10: 7,424,991 km (0.031 R)
• M11: 8,113,441 km (0.1 R)
• M12: 8,931,292 km (0.105 R)
• M13: 11,031,646 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.2

Radius: 11.2

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.55 AU - 2.25 AU

Year: 1665 Days

Day: 6.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,532,614 km

• M1: 140,772 km (0.102 R)
• M2: 558,150 km (0.114 R)
• M3: 1,165,367 km (0.071 R)
• M4: 1,936,993 km (0.082 R)
• M5: 2,476,742 km (0.052 R)
• M6: 3,291,004 km (0.047 R)
• M7: 4,720,411 km (0.118 R)
• M8: 5,308,630 km (0.087 R)
• M9: 6,143,536 km (0.073 R)
• M10: 7,342,862 km (0.103 R)
• M11: 9,611,364 km (0.111 R)
• M12: 11,954,665 km (0.03 R)
• M13: 13,048,973 km (0.117 R)
• M14: 15,065,403 km (0.089 R)
• M15: 15,908,387 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.5

Radius: 13.1

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.44 AU - 3.44 AU

Year: 3205 Days

Day: 14 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,532,614 km

• M1: 163,062 km (0.108 R)
• M2: 611,556 km (0.026 R)
• M3: 1,157,588 km (0.062 R)
• M4: 1,693,448 km (0.052 R)
• M5: 2,449,516 km (0.097 R)
• M6: 2,882,901 km (0.094 R)
• M7: 3,456,758 km (0.103 R)
• M8: 4,167,198 km (0.119 R)
• M9: 4,927,006 km (0.076 R)
• M10: 6,443,031 km (0.111 R)
• M11: 8,922,316 km (0.116 R)
• M12: 11,038,827 km (0.117 R)
• M13: 13,608,470 km (0.066 R)
• M14: 18,967,963 km (0.098 R)
• M15: 19,547,655 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.7

Radius: 13.7

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.86 AU - 3.64 AU

Year: 3725 Days

Day: 12.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,532,614 km

• M1: 171,439 km (0.045 R)
• M2: 625,020 km (0.038 R)
• M3: 1,299,258 km (0.085 R)
• M4: 1,878,650 km (0.074 R)
• M5: 2,728,216 km (0.101 R)
• M6: 3,319,278 km (0.115 R)
• M7: 3,878,474 km (0.049 R)
• M8: 6,101,349 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.4

Radius: 8.9

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.52 AU - 5.24 AU

Year: 5828 Days

Day: 11.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,532,614 km

• M1: 110,702 km (0.03 R)
• M2: 611,257 km (0.108 R)
• M3: 1,532,929 km (0.105 R)
• M4: 1,882,988 km (0.111 R)
• M5: 2,454,003 km (0.079 R)
• M6: 3,422,500 km (0.099 R)
• M7: 3,939,062 km (0.068 R)
• M8: 4,296,301 km (0.112 R)
• M9: 4,823,035 km (0.104 R)
• M10: 5,473,038 km (0.113 R)
• M11: 5,918,840 km (0.119 R)
• M12: 6,757,336 km (0.089 R)
• M13: 7,370,089 km (0.111 R)
• M14: 8,595,146 km (0.111 R)
• M15: 9,392,353 km (0.101 R)
• M16: 9,991,492 km (0.113 R)
• M17: 10,321,206 km (0.111 R)
• M18: 11,533,248 km (0.083 R)
• M19: 12,080,626 km (0.088 R)
• M20: 13,227,444 km (0.076 R)
• M21: 14,550,039 km (0.114 R)
• M22: 15,189,420 km (0.114 R)
• M23: 15,570,894 km (0.066 R)
• M24: 18,794,579 km (0.055 R)
• M25: 20,661,710 km (0.083 R)
• M26: 23,147,279 km (0.114 R)
• M27: 23,507,660 km (0.115 R)
• M28: 24,165,591 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 962.8

Radius: 4.1

Gravity: 57.28 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.06 AU - 8.9 AU

Year: 15701 Days

Day: 23 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,532,614 km

• M1: 52,808 km (0.108 R)
• M2: 370,704 km (0.053 R)
• M3: 630,854 km (0.116 R)
• M4: 833,410 km (0.064 R)
• M5: 967,898 km (0.077 R)
• M6: 1,170,005 km (0.064 R)
• M7: 2,087,339 km (0.08 R)
• M8: 3,782,283 km (0.106 R)
• M9: 3,934,723 km (0.075 R)
• M10: 4,689,744 km (0.11 R)
• M11: 5,420,978 km (0.116 R)
• M12: 6,438,094 km (0.086 R)
• M13: 9,002,949 km (0.03 R)
• M14: 12,044,424 km (0.093 R)
• M15: 12,576,394 km (0.111 R)
• M16: 12,985,544 km (0.119 R)
• M17: 17,409,153 km (0.109 R)
• M18: 17,577,301 km (0.074 R)
• M19: 20,606,359 km (0.082 R)
• M20: 25,665,459 km (0.097 R)
• M21: 26,212,838 km (0.106 R)
• M22: 30,997,576 km (0.12 R)
• M23: 31,994,497 km (0.11 R)
• M24: 34,447,303 km (0.04 R)
• M25: 36,745,575 km (0.096 R)
• M26: 37,161,607 km (0.064 R)
• M27: 44,721,087 km (0.065 R)
• M28: 46,475,720 km (0.085 R)
• M29: 47,615,955 km (0.074 R)
• M30: 48,110,226 km (0.081 R)
• M31: 49,782,731 km (0.102 R)
• M32: 53,775,647 km (0.109 R)
• M33: 56,307,741 km (0.106 R)
• M34: 57,976,804 km (0.077 R)
• M35: 62,194,866 km (0.106 R)
• M36: 63,778,060 km (0.081 R)
• M37: 63,977,923 km (0.114 R)
• M38: 71,450,785 km (0.1 R)
• M39: 71,666,356 km (0.051 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 19,343 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit