🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.3

Radius: 9.1

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.55 AU - 0.63 AU

Year: 313 Days

Day: 11.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,662,885 km

• M1: 113,246 km (0.108 R)
• M2: 415,433 km (0.085 R)
• M3: 770,279 km (0.062 R)
• M4: 1,530,386 km (0.085 R)
• M5: 1,840,054 km (0.082 R)
• M6: 2,503,670 km (0.071 R)
• M7: 3,032,798 km (0.111 R)
• M8: 3,707,783 km (0.054 R)
• M9: 3,996,657 km (0.034 R)
• M10: 4,341,480 km (0.118 R)
• M11: 5,060,896 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.3

Radius: 12.4

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.52 AU - 0.66 AU

Year: 313 Days

Day: 14.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 76,662,885 km

• M1: 154,235 km (0.062 R)
• M2: 541,395 km (0.098 R)
• M3: 1,118,992 km (0.089 R)
• M4: 1,519,615 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.1

Radius: 10.5

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.5 AU - 0.7 AU

Year: 321 Days

Day: 13.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,662,885 km

• M1: 130,599 km (0.039 R)
• M2: 463,604 km (0.106 R)
• M3: 834,307 km (0.081 R)
• M4: 1,191,098 km (0.053 R)
• M5: 1,624,483 km (0.068 R)
• M6: 2,063,403 km (0.096 R)
• M7: 2,845,651 km (0.032 R)
• M8: 3,814,746 km (0.093 R)
• M9: 4,200,409 km (0.104 R)
• M10: 4,626,314 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.3

Radius: 12.6

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.09 AU - 1.11 AU

Year: 796 Days

Day: 12 Hours

Environment

Temp: -186 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,662,885 km

• M1: 156,629 km (0.037 R)
• M2: 554,859 km (0.095 R)
• M3: 1,407,267 km (0.108 R)
• M4: 1,814,473 km (0.105 R)
• M5: 2,918,206 km (0.119 R)
• M6: 3,568,807 km (0.1 R)
• M7: 4,747,339 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642

Radius: 12.8

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.9 AU - 1.38 AU

Year: 840 Days

Day: 14.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,662,885 km

• M1: 159,172 km (0.092 R)
• M2: 575,054 km (0.105 R)
• M3: 1,025,194 km (0.077 R)
• M4: 1,460,225 km (0.102 R)
• M5: 1,901,688 km (0.111 R)
• M6: 2,369,331 km (0.093 R)
• M7: 3,541,580 km (0.111 R)
• M8: 3,948,187 km (0.072 R)
• M9: 4,533,713 km (0.116 R)
• M10: 5,549,333 km (0.09 R)
• M11: 6,886,140 km (0.048 R)
• M12: 7,361,113 km (0.107 R)
• M13: 8,028,469 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66

Radius: 8.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.7 AU - 2.68 AU

Year: 2237 Days

Day: 13.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,662,885 km

• M1: 104,419 km (0.11 R)
• M2: 780,751 km (0.073 R)
• M3: 1,103,583 km (0.104 R)
• M4: 1,892,114 km (0.114 R)
• M5: 3,063,166 km (0.094 R)
• M6: 5,135,695 km (0.098 R)
• M7: 5,815,916 km (0.116 R)
• M8: 6,247,955 km (0.063 R)
• M9: 6,513,342 km (0.041 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.7

Radius: 12.2

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.44 AU - 4.56 AU

Year: 5522 Days

Day: 7.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,662,885 km

• M1: 151,692 km (0.082 R)
• M2: 771,177 km (0.084 R)
• M3: 1,150,856 km (0.114 R)
• M4: 2,650,575 km (0.046 R)
• M5: 3,070,347 km (0.054 R)
• M6: 3,555,792 km (0.113 R)
• M7: 4,656,832 km (0.067 R)
• M8: 5,161,875 km (0.119 R)
• M9: 6,126,332 km (0.106 R)
• M10: 7,001,779 km (0.084 R)
• M11: 7,523,127 km (0.068 R)
• M12: 8,107,756 km (0.025 R)
• M13: 10,307,443 km (0.047 R)
• M14: 11,784,722 km (0.086 R)
• M15: 16,875,986 km (0.117 R)
• M16: 17,435,482 km (0.063 R)
• M17: 17,879,190 km (0.078 R)
• M18: 21,342,979 km (0.11 R)
• M19: 22,590,774 km (0.073 R)
• M20: 25,070,359 km (0.094 R)
• M21: 26,210,145 km (0.091 R)
• M22: 29,567,720 km (0.099 R)
• M23: 30,472,787 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.1

Radius: 11.5

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.08 AU - 5.42 AU

Year: 7146 Days

Day: 13.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 179.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,662,885 km

• M1: 143,016 km (0.075 R)
• M2: 621,130 km (0.107 R)
• M3: 1,246,150 km (0.031 R)
• M4: 1,920,388 km (0.112 R)
• M5: 2,685,731 km (0.068 R)
• M6: 3,074,835 km (0.073 R)
• M7: 3,891,489 km (0.118 R)
• M8: 4,673,138 km (0.079 R)
• M9: 6,767,060 km (0.093 R)
• M10: 7,181,745 km (0.027 R)
• M11: 8,020,839 km (0.1 R)
• M12: 9,377,243 km (0.11 R)
• M13: 11,610,740 km (0.101 R)
• M14: 12,042,030 km (0.066 R)
• M15: 13,342,185 km (0.117 R)
• M16: 13,996,078 km (0.113 R)
• M17: 16,353,441 km (0.026 R)
• M18: 20,174,769 km (0.105 R)
• M19: 22,004,351 km (0.066 R)
• M20: 22,665,873 km (0.099 R)
• M21: 26,082,838 km (0.095 R)
• M22: 29,032,908 km (0.056 R)
• M23: 29,929,448 km (0.105 R)
• M24: 30,537,264 km (0.047 R)
• M25: 31,673,011 km (0.063 R)
• M26: 33,266,976 km (0.097 R)
• M27: 38,607,321 km (0.027 R)
• M28: 41,043,672 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521.4

Radius: 7

Gravity: 10.64 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 8.03 AU - 12.79 AU

Year: 23184 Days

Day: 16.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,662,885 km

• M1: 88,412 km (0.066 R)
• M2: 306,376 km (0.062 R)
• M3: 526,285 km (0.066 R)
• M4: 746,793 km (0.076 R)
• M5: 1,031,029 km (0.102 R)
• M6: 1,512,135 km (0.054 R)
• M7: 1,954,646 km (0.074 R)
• M8: 2,619,908 km (0.088 R)
• M9: 2,838,919 km (0.104 R)
• M10: 5,061,794 km (0.119 R)
• M11: 5,720,024 km (0.103 R)
• M12: 6,133,064 km (0.093 R)
• M13: 7,158,408 km (0.073 R)
• M14: 7,443,840 km (0.103 R)
• M15: 8,190,633 km (0.038 R)
• M16: 9,832,320 km (0.065 R)
• M17: 10,854,223 km (0.093 R)
• M18: 11,231,210 km (0.08 R)
• M19: 17,382,973 km (0.11 R)
• M20: 17,639,833 km (0.048 R)
• M21: 19,786,862 km (0.06 R)
• M22: 24,058,928 km (0.113 R)
• M23: 25,352,501 km (0.085 R)
• M24: 36,566,208 km (0.028 R)
• M25: 37,985,443 km (0.084 R)
• M26: 59,327,673 km (0.059 R)
• M27: 60,105,432 km (0.092 R)
• M28: 61,284,862 km (0.09 R)
• M29: 67,624,969 km (0.111 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 152 - 14,345 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit