🌌 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 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.5

Radius: 10.1

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.54 AU - 0.8 AU

Year: 372 Days

Day: 8.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,591,692 km

• M1: 125,662 km (0.114 R)
• M2: 554,410 km (0.11 R)
• M3: 1,039,107 km (0.106 R)
• M4: 1,965,267 km (0.049 R)
• M5: 2,323,405 km (0.087 R)
• M6: 2,741,082 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.5

Radius: 11.1

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.66 AU - 1.08 AU

Year: 550 Days

Day: 5.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,591,692 km

• M1: 138,228 km (0.118 R)
• M2: 591,360 km (0.095 R)
• M3: 1,138,141 km (0.089 R)
• M4: 1,527,843 km (0.089 R)
• M5: 2,144,934 km (0.076 R)
• M6: 2,607,940 km (0.103 R)
• M7: 3,376,125 km (0.085 R)
• M8: 5,593,464 km (0.095 R)
• M9: 6,258,128 km (0.073 R)
• M10: 6,743,722 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.5

Radius: 8.9

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.19 AU - 1.75 AU

Year: 1209 Days

Day: 13.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,591,692 km

• M1: 112,348 km (0.09 R)
• M2: 493,374 km (0.076 R)
• M3: 1,109,567 km (0.11 R)
• M4: 1,469,949 km (0.101 R)
• M5: 2,017,926 km (0.095 R)
• M6: 2,295,131 km (0.072 R)
• M7: 3,143,949 km (0.113 R)
• M8: 4,535,658 km (0.064 R)
• M9: 5,863,339 km (0.08 R)
• M10: 6,366,137 km (0.031 R)
• M11: 7,040,824 km (0.09 R)
• M12: 8,101,323 km (0.101 R)
• M13: 8,725,445 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.2

Radius: 11.4

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.62 AU - 3.08 AU

Year: 3263 Days

Day: 5.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,591,692 km

• M1: 171,140 km (0.117 R)
• M2: 715,377 km (0.03 R)
• M3: 2,259,377 km (0.037 R)
• M4: 3,163,397 km (0.11 R)
• M5: 5,087,674 km (0.074 R)
• M6: 5,956,389 km (0.069 R)
• M7: 6,523,365 km (0.114 R)
• M8: 7,126,244 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.1

Radius: 11.6

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.7 AU - 3.24 AU

Year: 3472 Days

Day: 8.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,591,692 km

• M1: 144,212 km (0.068 R)
• M2: 649,255 km (0.084 R)
• M3: 1,062,743 km (0.086 R)
• M4: 1,525,749 km (0.06 R)
• M5: 2,708,769 km (0.119 R)
• M6: 3,768,071 km (0.062 R)
• M7: 4,471,032 km (0.098 R)
• M8: 5,109,665 km (0.09 R)
• M9: 6,481,477 km (0.053 R)
• M10: 7,143,897 km (0.077 R)
• M11: 8,017,847 km (0.065 R)
• M12: 8,853,352 km (0.086 R)
• M13: 9,900,387 km (0.072 R)
• M14: 10,575,223 km (0.064 R)
• M15: 11,196,054 km (0.088 R)
• M16: 13,489,988 km (0.113 R)
• M17: 14,319,658 km (0.082 R)
• M18: 14,823,503 km (0.041 R)
• M19: 17,579,395 km (0.096 R)
• M20: 18,098,949 km (0.109 R)
• M21: 19,719,393 km (0.108 R)
• M22: 20,469,776 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.5

Radius: 13.1

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.28 AU - 3.64 AU

Year: 4365 Days

Day: 6.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,591,692 km

• M1: 162,912 km (0.072 R)
• M2: 592,408 km (0.104 R)
• M3: 1,653,804 km (0.097 R)
• M4: 2,607,042 km (0.108 R)
• M5: 3,434,169 km (0.077 R)
• M6: 4,239,753 km (0.101 R)
• M7: 5,809,933 km (0.094 R)
• M8: 6,473,698 km (0.094 R)
• M9: 7,774,452 km (0.07 R)
• M10: 8,468,137 km (0.098 R)
• M11: 9,322,640 km (0.101 R)
• M12: 13,428,204 km (0.1 R)
• M13: 14,374,111 km (0.068 R)
• M14: 15,140,202 km (0.044 R)
• M15: 16,634,984 km (0.118 R)
• M16: 18,100,146 km (0.057 R)
• M17: 18,607,133 km (0.12 R)
• M18: 20,050,603 km (0.089 R)
• M19: 24,596,284 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.5

Radius: 6.7

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 6.9 AU - 7.72 AU

Year: 13405 Days

Day: 19.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,591,692 km

• M1: 86,168 km (0.083 R)
• M2: 303,983 km (0.11 R)
• M3: 593,904 km (0.054 R)
• M4: 847,023 km (0.114 R)
• M5: 1,701,825 km (0.098 R)
• M6: 2,758,884 km (0.111 R)
• M7: 3,009,460 km (0.115 R)
• M8: 5,112,806 km (0.084 R)
• M9: 5,492,486 km (0.112 R)
• M10: 6,154,157 km (0.065 R)
• M11: 7,373,081 km (0.097 R)
• M12: 8,842,281 km (0.115 R)
• M13: 13,871,014 km (0.112 R)
• M14: 14,136,550 km (0.081 R)
• M15: 17,905,070 km (0.101 R)
• M16: 21,753,924 km (0.057 R)
• M17: 22,566,540 km (0.09 R)
• M18: 35,910,370 km (0.077 R)
• M19: 37,044,322 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.4

Radius: 8

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.91 AU - 11.05 AU

Year: 18252 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,591,692 km

• M1: 99,483 km (0.085 R)
• M2: 693,835 km (0.103 R)
• M3: 1,079,648 km (0.11 R)
• M4: 2,364,544 km (0.083 R)
• M5: 2,858,516 km (0.109 R)
• M6: 4,729,387 km (0.113 R)
• M7: 6,731,007 km (0.093 R)
• M8: 7,508,018 km (0.098 R)
• M9: 7,896,374 km (0.103 R)
• M10: 24,441,300 km (0.074 R)
• M11: 25,487,139 km (0.062 R)
• M12: 31,610,628 km (0.075 R)
• M13: 36,399,855 km (0.071 R)
• M14: 38,774,721 km (0.097 R)
• M15: 39,545,599 km (0.102 R)
• M16: 47,678,786 km (0.12 R)
• M17: 50,213,872 km (0.118 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 16,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit