🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.7

Radius: 10.4

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.6 AU - 0.7 AU

Year: 362 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,358,777 km

• M1: 129,402 km (0.095 R)
• M2: 694,433 km (0.117 R)
• M3: 1,079,947 km (0.108 R)
• M4: 1,628,971 km (0.112 R)
• M5: 1,998,927 km (0.091 R)
• M6: 2,357,064 km (0.057 R)
• M7: 3,010,657 km (0.098 R)
• M8: 4,118,878 km (0.1 R)
• M9: 4,516,809 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.7

Radius: 8.1

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.62 AU - 0.7 AU

Year: 370 Days

Day: 6.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,358,777 km

• M1: 100,829 km (0.093 R)
• M2: 387,010 km (0.075 R)
• M3: 688,150 km (0.081 R)
• M4: 1,064,239 km (0.086 R)
• M5: 1,944,623 km (0.074 R)
• M6: 2,237,835 km (0.112 R)
• M7: 2,512,646 km (0.042 R)
• M8: 3,289,208 km (0.109 R)
• M9: 4,298,844 km (0.076 R)
• M10: 4,580,836 km (0.108 R)
• M11: 5,011,678 km (0.041 R)
• M12: 5,356,352 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.9

Radius: 9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.77 AU - 1.09 AU

Year: 619 Days

Day: 14.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,358,777 km

• M1: 111,899 km (0.091 R)
• M2: 447,896 km (0.107 R)
• M3: 845,378 km (0.03 R)
• M4: 1,196,933 km (0.082 R)
• M5: 1,603,390 km (0.025 R)
• M6: 1,934,749 km (0.104 R)
• M7: 2,230,953 km (0.077 R)
• M8: 2,567,399 km (0.095 R)
• M9: 2,948,574 km (0.12 R)
• M10: 3,609,797 km (0.105 R)
• M11: 4,582,183 km (0.073 R)
• M12: 4,865,820 km (0.108 R)
• M13: 5,208,998 km (0.098 R)
• M14: 5,618,597 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 14.5

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.86 AU - 1.16 AU

Year: 701 Days

Day: 9.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 39,358,777 km

• M1: 180,864 km (0.075 R)
• M2: 1,032,375 km (0.076 R)
• M3: 2,442,634 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.7

Radius: 8.5

Gravity: 9.78 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.33 AU - 2.19 AU

Year: 1612 Days

Day: 7.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,358,777 km

• M1: 105,766 km (0.069 R)
• M2: 401,820 km (0.111 R)
• M3: 1,065,586 km (0.091 R)
• M4: 1,473,539 km (0.057 R)
• M5: 2,016,729 km (0.071 R)
• M6: 3,321,671 km (0.119 R)
• M7: 4,722,356 km (0.117 R)
• M8: 5,828,782 km (0.106 R)
• M9: 6,682,238 km (0.092 R)
• M10: 10,177,143 km (0.096 R)
• M11: 11,013,096 km (0.082 R)
• M12: 12,159,614 km (0.093 R)
• M13: 12,900,572 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.7

Radius: 11.5

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.65 AU - 2.47 AU

Year: 2041 Days

Day: 6.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,358,777 km

• M1: 143,016 km (0.09 R)
• M2: 572,212 km (0.057 R)
• M3: 1,457,981 km (0.044 R)
• M4: 2,306,650 km (0.056 R)
• M5: 3,232,361 km (0.117 R)
• M6: 3,773,008 km (0.102 R)
• M7: 4,424,656 km (0.034 R)
• M8: 5,343,187 km (0.112 R)
• M9: 5,785,847 km (0.112 R)
• M10: 6,608,336 km (0.032 R)
• M11: 7,311,297 km (0.058 R)
• M12: 8,115,385 km (0.079 R)
• M13: 9,061,442 km (0.063 R)
• M14: 9,899,789 km (0.045 R)
• M15: 10,353,220 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.4

Radius: 8.9

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.58 AU - 2.96 AU

Year: 3182 Days

Day: 10.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,358,777 km

• M1: 114,442 km (0.097 R)
• M2: 396,434 km (0.12 R)
• M3: 931,995 km (0.12 R)
• M4: 1,359,396 km (0.093 R)
• M5: 1,901,239 km (0.046 R)
• M6: 3,913,181 km (0.054 R)
• M7: 4,235,864 km (0.067 R)
• M8: 5,033,819 km (0.11 R)
• M9: 5,900,738 km (0.092 R)
• M10: 7,270,905 km (0.072 R)
• M11: 7,594,785 km (0.07 R)
• M12: 8,411,739 km (0.091 R)
• M13: 8,878,185 km (0.094 R)
• M14: 9,437,681 km (0.097 R)
• M15: 9,902,033 km (0.113 R)
• M16: 10,179,836 km (0.051 R)
• M17: 10,585,845 km (0.108 R)
• M18: 11,648,139 km (0.082 R)
• M19: 15,260,928 km (0.115 R)
• M20: 15,955,211 km (0.105 R)
• M21: 18,105,232 km (0.046 R)
• M22: 19,745,722 km (0.076 R)
• M23: 22,083,937 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.9

Radius: 9.8

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.97 AU - 3.21 AU

Year: 3749 Days

Day: 11.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,358,777 km

• M1: 125,961 km (0.109 R)
• M2: 677,080 km (0.109 R)
• M3: 1,460,823 km (0.062 R)
• M4: 2,135,360 km (0.101 R)
• M5: 2,626,191 km (0.083 R)
• M6: 3,156,665 km (0.042 R)
• M7: 3,776,449 km (0.114 R)
• M8: 4,410,444 km (0.116 R)
• M9: 5,113,704 km (0.107 R)
• M10: 5,733,937 km (0.11 R)
• M11: 6,102,696 km (0.103 R)
• M12: 7,124,449 km (0.037 R)
• M13: 10,021,561 km (0.112 R)
• M14: 20,156,368 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.5

Radius: 6.4

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5 AU - 7.76 AU

Year: 11124 Days

Day: 22.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,358,777 km

• M1: 79,586 km (0.119 R)
• M2: 417,976 km (0.096 R)
• M3: 1,261,110 km (0.105 R)
• M4: 1,927,569 km (0.084 R)
• M5: 2,391,771 km (0.104 R)
• M6: 3,587,806 km (0.103 R)
• M7: 5,228,894 km (0.057 R)
• M8: 6,299,118 km (0.074 R)
• M9: 8,229,080 km (0.099 R)
• M10: 8,907,805 km (0.049 R)
• M11: 10,717,939 km (0.12 R)
• M12: 13,265,741 km (0.054 R)
• M13: 15,422,792 km (0.109 R)
• M14: 17,527,186 km (0.111 R)
• M15: 19,007,905 km (0.115 R)
• M16: 20,190,477 km (0.073 R)
• M17: 21,578,745 km (0.117 R)
• M18: 22,701,626 km (0.115 R)
• M19: 24,976,262 km (0.105 R)
• M20: 36,598,072 km (0.097 R)
• M21: 39,123,583 km (0.119 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: 475 - 14,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit