🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.4

Radius: 12.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.9 AU - 1.3 AU

Year: 769 Days

Day: 12.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,414,803 km

• M1: 153,039 km (0.102 R)
• M2: 568,921 km (0.113 R)
• M3: 1,010,982 km (0.084 R)
• M4: 2,081,505 km (0.067 R)
• M5: 2,571,587 km (0.076 R)
• M6: 3,127,792 km (0.055 R)
• M7: 3,515,400 km (0.068 R)
• M8: 4,074,148 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.1

Radius: 11.4

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.07 AU - 1.55 AU

Year: 1000 Days

Day: 7.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,414,803 km

• M1: 141,819 km (0.115 R)
• M2: 602,580 km (0.056 R)
• M3: 958,324 km (0.079 R)
• M4: 1,352,066 km (0.119 R)
• M5: 2,503,072 km (0.031 R)
• M6: 3,086,204 km (0.105 R)
• M7: 3,502,086 km (0.096 R)
• M8: 4,129,799 km (0.112 R)
• M9: 4,749,583 km (0.079 R)
• M10: 5,483,809 km (0.1 R)
• M11: 6,136,205 km (0.101 R)
• M12: 6,944,333 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.3

Radius: 10.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.25 AU - 1.41 AU

Year: 1023 Days

Day: 11.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,414,803 km

• M1: 133,591 km (0.104 R)
• M2: 508,782 km (0.083 R)
• M3: 1,225,955 km (0.088 R)
• M4: 1,833,023 km (0.1 R)
• M5: 2,713,257 km (0.077 R)
• M6: 3,508,668 km (0.096 R)
• M7: 3,894,332 km (0.057 R)
• M8: 4,570,813 km (0.088 R)
• M9: 5,048,031 km (0.062 R)
• M10: 5,406,766 km (0.119 R)
• M11: 6,157,448 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.2

Radius: 9.8

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.7 AU - 2.66 AU

Year: 2146 Days

Day: 5.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,414,803 km

• M1: 122,371 km (0.097 R)
• M2: 552,615 km (0.086 R)
• M3: 1,215,483 km (0.089 R)
• M4: 2,127,132 km (0.047 R)
• M5: 2,605,546 km (0.106 R)
• M6: 2,926,284 km (0.062 R)
• M7: 3,862,916 km (0.106 R)
• M8: 4,503,046 km (0.095 R)
• M9: 4,908,007 km (0.079 R)
• M10: 5,379,539 km (0.075 R)
• M11: 6,728,164 km (0.106 R)
• M12: 7,574,439 km (0.091 R)
• M13: 8,092,946 km (0.086 R)
• M14: 8,752,074 km (0.098 R)
• M15: 10,177,442 km (0.057 R)
• M16: 10,506,707 km (0.118 R)
• M17: 11,117,366 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745

Radius: 7.9

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.23 AU - 9.93 AU

Year: 15316 Days

Day: 19.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 25,414,803 km

• M1: 98,435 km (0.08 R)
• M2: 356,193 km (0.092 R)
• M3: 678,277 km (0.079 R)
• M4: 1,458,280 km (0.063 R)
• M5: 2,084,497 km (0.068 R)
• M6: 2,668,676 km (0.087 R)
• M7: 3,630,441 km (0.077 R)
• M8: 4,572,609 km (0.108 R)
• M9: 4,943,462 km (0.12 R)
• M10: 5,707,159 km (0.101 R)
• M11: 6,218,035 km (0.098 R)
• M12: 7,151,526 km (0.11 R)
• M13: 7,651,931 km (0.05 R)
• M14: 9,453,837 km (0.084 R)
• M15: 10,919,747 km (0.082 R)
• M16: 12,082,571 km (0.054 R)
• M17: 12,596,141 km (0.036 R)
• M18: 16,141,461 km (0.115 R)
• M19: 19,330,588 km (0.086 R)
• M20: 21,395,936 km (0.049 R)
• M21: 24,103,508 km (0.066 R)
• M22: 25,226,988 km (0.106 R)
• M23: 34,596,901 km (0.072 R)
• M24: 39,837,315 km (0.071 R)
• M25: 44,513,744 km (0.052 R)
• M26: 48,252,045 km (0.085 R)
• M27: 51,356,051 km (0.1 R)
• M28: 55,288,680 km (0.107 R)
• M29: 59,601,288 km (0.061 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.5

Radius: 5.1

Gravity: 22.43 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.58 AU - 9.54 AU

Year: 16701 Days

Day: 18.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 25,414,803 km

• M1: 64,327 km (0.087 R)
• M2: 224,098 km (0.083 R)
• M3: 405,859 km (0.113 R)
• M4: 935,735 km (0.078 R)
• M5: 1,266,047 km (0.091 R)
• M6: 1,948,662 km (0.035 R)
• M7: 3,379,416 km (0.113 R)
• M8: 3,738,301 km (0.108 R)
• M9: 4,663,414 km (0.11 R)
• M10: 4,831,263 km (0.091 R)
• M11: 5,506,398 km (0.084 R)
• M12: 5,886,078 km (0.097 R)
• M13: 8,243,740 km (0.026 R)
• M14: 8,539,346 km (0.115 R)
• M15: 8,791,119 km (0.077 R)
• M16: 9,468,947 km (0.114 R)
• M17: 10,293,530 km (0.107 R)
• M18: 13,590,967 km (0.117 R)
• M19: 14,638,301 km (0.111 R)
• M20: 18,600,999 km (0.104 R)
• M21: 19,802,121 km (0.045 R)
• M22: 21,421,368 km (0.052 R)
• M23: 22,263,006 km (0.11 R)
• M24: 29,120,871 km (0.094 R)
• M25: 39,860,652 km (0.1 R)
• M26: 41,275,100 km (0.086 R)
• M27: 44,504,170 km (0.115 R)
• M28: 50,634,840 km (0.027 R)
• M29: 52,292,684 km (0.082 R)
• M30: 55,193,686 km (0.084 R)
• M31: 62,627,802 km (0.103 R)
• M32: 63,387,011 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.6

Radius: 3.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.71 AU - 9.57 AU

Year: 16936 Days

Day: 21.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,414,803 km

• M1: 206,595 km (0.063 R)
• M2: 539,749 km (0.056 R)
• M3: 704,008 km (0.119 R)
• M4: 1,898,846 km (0.099 R)
• M5: 2,483,175 km (0.081 R)
• M6: 2,994,201 km (0.044 R)
• M7: 3,491,016 km (0.052 R)
• M8: 3,822,824 km (0.095 R)
• M9: 4,549,122 km (0.081 R)
• M10: 5,256,271 km (0.079 R)
• M11: 8,379,874 km (0.108 R)
• M12: 9,011,177 km (0.11 R)
• M13: 9,996,279 km (0.112 R)
• M14: 12,459,109 km (0.087 R)
• M15: 13,230,585 km (0.112 R)
• M16: 15,902,104 km (0.097 R)
• M17: 16,693,926 km (0.095 R)
• M18: 18,787,548 km (0.085 R)
• M19: 24,438,159 km (0.108 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: 354 - 15,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit