🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.6

Radius: 13.7

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.5 AU - 0.6 AU

Year: 272 Days

Day: 6.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,084,337 km

• M1: 170,392 km (0.097 R)
• M2: 647,460 km (0.088 R)
• M3: 1,095,356 km (0.063 R)
• M4: 1,525,449 km (0.08 R)
• M5: 2,160,044 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.8

Radius: 10.2

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.62 AU - 0.66 AU

Year: 341 Days

Day: 10.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,084,337 km

• M1: 126,859 km (0.119 R)
• M2: 462,557 km (0.113 R)
• M3: 809,175 km (0.081 R)
• M4: 1,165,667 km (0.086 R)
• M5: 1,541,307 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.2

Radius: 11.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.01 AU - 1.41 AU

Year: 888 Days

Day: 10.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,084,337 km

• M1: 141,819 km (0.074 R)
• M2: 791,971 km (0.102 R)
• M3: 1,402,181 km (0.081 R)
• M4: 2,419,446 km (0.085 R)
• M5: 3,001,532 km (0.061 R)
• M6: 3,735,608 km (0.092 R)
• M7: 4,378,879 km (0.11 R)
• M8: 5,343,486 km (0.067 R)
• M9: 7,107,844 km (0.117 R)
• M10: 8,897,034 km (0.117 R)
• M11: 9,574,563 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.9

Radius: 13.9

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.37 AU - 3.29 AU

Year: 3175 Days

Day: 5.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,084,337 km

• M1: 173,234 km (0.045 R)
• M2: 631,004 km (0.068 R)
• M3: 1,224,758 km (0.092 R)
• M4: 1,746,256 km (0.085 R)
• M5: 3,186,285 km (0.101 R)
• M6: 4,237,210 km (0.104 R)
• M7: 4,753,622 km (0.089 R)
• M8: 5,312,071 km (0.12 R)
• M9: 5,810,680 km (0.095 R)
• M10: 6,702,134 km (0.09 R)
• M11: 7,195,957 km (0.088 R)
• M12: 8,030,563 km (0.031 R)
• M13: 9,242,605 km (0.088 R)
• M14: 9,745,703 km (0.119 R)
• M15: 10,191,355 km (0.06 R)
• M16: 10,925,132 km (0.084 R)
• M17: 11,860,269 km (0.111 R)
• M18: 13,294,314 km (0.12 R)
• M19: 14,455,493 km (0.058 R)
• M20: 18,122,585 km (0.11 R)
• M21: 19,200,288 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.7

Radius: 14.1

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.76 AU - 4.7 AU

Year: 5801 Days

Day: 12.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,084,337 km

• M1: 192,383 km (0.091 R)
• M2: 790,326 km (0.085 R)
• M3: 1,644,380 km (0.103 R)
• M4: 2,307,996 km (0.115 R)
• M5: 2,752,750 km (0.084 R)
• M6: 3,558,634 km (0.034 R)
• M7: 4,402,815 km (0.05 R)
• M8: 7,007,463 km (0.085 R)
• M9: 13,963,615 km (0.098 R)
• M10: 18,473,243 km (0.102 R)
• M11: 19,267,757 km (0.083 R)
• M12: 19,768,012 km (0.053 R)
• M13: 22,675,896 km (0.048 R)
• M14: 23,658,155 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368

Radius: 14.1

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.14 AU - 6.14 AU

Year: 8932 Days

Day: 13.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,084,337 km

• M1: 175,329 km (0.094 R)
• M2: 636,090 km (0.056 R)
• M3: 1,353,861 km (0.067 R)
• M4: 1,924,128 km (0.049 R)
• M5: 2,375,016 km (0.106 R)
• M6: 3,302,074 km (0.057 R)
• M7: 4,177,670 km (0.103 R)
• M8: 4,725,049 km (0.096 R)
• M9: 6,061,556 km (0.118 R)
• M10: 6,731,156 km (0.083 R)
• M11: 7,827,709 km (0.048 R)
• M12: 9,168,106 km (0.113 R)
• M13: 9,736,428 km (0.117 R)
• M14: 13,543,095 km (0.103 R)
• M15: 17,308,025 km (0.041 R)
• M16: 19,006,559 km (0.082 R)
• M17: 20,963,150 km (0.11 R)
• M18: 22,184,167 km (0.096 R)
• M19: 26,132,055 km (0.119 R)
• M20: 28,180,349 km (0.093 R)
• M21: 31,401,491 km (0.12 R)
• M22: 33,406,850 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.7

Radius: 6

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.91 AU - 6.09 AU

Year: 9801 Days

Day: 19 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,084,337 km

• M1: 75,098 km (0.107 R)
• M2: 280,047 km (0.099 R)
• M3: 515,365 km (0.114 R)
• M4: 779,555 km (0.083 R)
• M5: 988,992 km (0.057 R)
• M6: 1,301,501 km (0.074 R)
• M7: 1,600,099 km (0.105 R)
• M8: 1,856,958 km (0.111 R)
• M9: 2,351,828 km (0.03 R)
• M10: 2,930,622 km (0.04 R)
• M11: 3,445,688 km (0.11 R)
• M12: 6,548,946 km (0.042 R)
• M13: 6,821,513 km (0.098 R)
• M14: 8,781,694 km (0.091 R)
• M15: 9,324,884 km (0.104 R)
• M16: 9,539,707 km (0.083 R)
• M17: 10,249,249 km (0.118 R)
• M18: 10,993,499 km (0.078 R)
• M19: 12,278,694 km (0.103 R)
• M20: 14,504,112 km (0.082 R)
• M21: 18,426,119 km (0.069 R)
• M22: 18,901,242 km (0.114 R)
• M23: 22,305,641 km (0.061 R)
• M24: 29,553,209 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.1

Radius: 5

Gravity: 39.4 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.91 AU - 8.17 AU

Year: 13807 Days

Day: 23.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 67,084,337 km

• M1: 78,090 km (0.096 R)
• M2: 275,110 km (0.079 R)
• M3: 472,879 km (0.112 R)
• M4: 1,199,925 km (0.074 R)
• M5: 1,440,927 km (0.051 R)
• M6: 2,001,470 km (0.051 R)
• M7: 2,157,052 km (0.104 R)
• M8: 2,581,910 km (0.107 R)
• M9: 3,294,594 km (0.098 R)
• M10: 3,977,059 km (0.094 R)
• M11: 4,287,625 km (0.071 R)
• M12: 5,027,685 km (0.105 R)
• M13: 6,008,150 km (0.055 R)
• M14: 7,154,668 km (0.1 R)
• M15: 8,142,014 km (0.081 R)
• M16: 8,591,705 km (0.093 R)
• M17: 8,848,564 km (0.092 R)
• M18: 11,212,959 km (0.076 R)
• M19: 14,684,228 km (0.077 R)
• M20: 17,304,285 km (0.108 R)
• M21: 18,468,156 km (0.106 R)
• M22: 24,457,905 km (0.085 R)
• M23: 26,892,162 km (0.074 R)
• M24: 28,906,497 km (0.102 R)
• M25: 34,765,049 km (0.07 R)
• M26: 36,210,763 km (0.041 R)
• M27: 38,523,247 km (0.119 R)
• M28: 47,470,097 km (0.088 R)
• M29: 48,111,573 km (0.107 R)
• M30: 49,247,769 km (0.047 R)
• M31: 50,734,771 km (0.11 R)
• M32: 53,798,237 km (0.065 R)
• M33: 57,525,318 km (0.063 R)
• M34: 59,544,590 km (0.053 R)
• M35: 59,730,540 km (0.053 R)
• M36: 66,883,413 km (0.091 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 545 - 16,626 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit