🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.9

Radius: 15

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.59 AU - 0.93 AU

Year: 466 Days

Day: 13.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,709,061 km

• M1: 186,549 km (0.038 R)
• M2: 801,845 km (0.074 R)
• M3: 1,442,572 km (0.099 R)
• M4: 2,392,519 km (0.03 R)
• M5: 4,064,125 km (0.118 R)
• M6: 5,044,291 km (0.112 R)
• M7: 5,556,663 km (0.106 R)
• M8: 6,213,847 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.6

Radius: 9.6

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.76 AU - 0.88 AU

Year: 522 Days

Day: 13.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,709,061 km

• M1: 119,379 km (0.054 R)
• M2: 440,416 km (0.099 R)
• M3: 1,014,274 km (0.073 R)
• M4: 1,451,099 km (0.116 R)
• M5: 1,763,161 km (0.04 R)
• M6: 2,111,275 km (0.036 R)
• M7: 2,494,844 km (0.099 R)
• M8: 2,866,894 km (0.098 R)
• M9: 3,188,679 km (0.067 R)
• M10: 3,655,574 km (0.099 R)
• M11: 4,006,081 km (0.101 R)
• M12: 4,472,079 km (0.093 R)
• M13: 4,775,164 km (0.068 R)
• M14: 5,494,730 km (0.104 R)
• M15: 7,020,628 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961

Radius: 13.3

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.79 AU - 1.11 AU

Year: 651 Days

Day: 12.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,709,061 km

• M1: 174,431 km (0.092 R)
• M2: 702,362 km (0.03 R)
• M3: 1,192,145 km (0.109 R)
• M4: 1,613,563 km (0.073 R)
• M5: 2,234,843 km (0.087 R)
• M6: 2,939,000 km (0.112 R)
• M7: 3,860,074 km (0.071 R)
• M8: 4,624,968 km (0.052 R)
• M9: 5,123,877 km (0.108 R)
• M10: 5,793,178 km (0.059 R)
• M11: 6,374,365 km (0.11 R)
• M12: 7,216,900 km (0.103 R)
• M13: 8,255,409 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54

Radius: 14.9

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.19 AU - 1.79 AU

Year: 1278 Days

Day: 9.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,709,061 km

• M1: 186,249 km (0.081 R)
• M2: 748,588 km (0.107 R)
• M3: 1,547,740 km (0.102 R)
• M4: 2,223,772 km (0.077 R)
• M5: 3,864,861 km (0.114 R)
• M6: 5,111,011 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.7

Radius: 12.8

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.82 AU - 3.98 AU

Year: 5414 Days

Day: 10.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,709,061 km

• M1: 162,613 km (0.115 R)
• M2: 635,641 km (0.104 R)
• M3: 1,170,603 km (0.067 R)
• M4: 2,061,459 km (0.07 R)
• M5: 3,163,397 km (0.112 R)
• M6: 4,229,431 km (0.096 R)
• M7: 5,726,008 km (0.089 R)
• M8: 6,926,531 km (0.107 R)
• M9: 8,402,912 km (0.055 R)
• M10: 9,195,033 km (0.054 R)
• M11: 13,076,499 km (0.088 R)
• M12: 14,637,852 km (0.101 R)
• M13: 16,140,563 km (0.109 R)
• M14: 17,239,509 km (0.063 R)
• M15: 17,743,654 km (0.072 R)
• M16: 21,553,463 km (0.092 R)
• M17: 24,037,087 km (0.037 R)
• M18: 27,552,038 km (0.119 R)
• M19: 29,476,764 km (0.059 R)
• M20: 30,472,039 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.1

Radius: 6.9

Gravity: 17.9 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.84 AU - 6.98 AU

Year: 10099 Days

Day: 16.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,709,061 km

• M1: 85,869 km (0.116 R)
• M2: 424,559 km (0.074 R)
• M3: 1,082,939 km (0.083 R)
• M4: 1,362,388 km (0.103 R)
• M5: 1,767,499 km (0.113 R)
• M6: 1,998,777 km (0.111 R)
• M7: 3,111,785 km (0.034 R)
• M8: 4,933,588 km (0.096 R)
• M9: 6,445,574 km (0.1 R)
• M10: 8,518,252 km (0.113 R)
• M11: 9,038,255 km (0.081 R)
• M12: 9,529,085 km (0.089 R)
• M13: 12,195,069 km (0.111 R)
• M14: 12,612,596 km (0.068 R)
• M15: 18,863,544 km (0.116 R)
• M16: 21,334,900 km (0.087 R)
• M17: 22,381,188 km (0.088 R)
• M18: 23,736,694 km (0.107 R)
• M19: 24,670,185 km (0.058 R)
• M20: 30,245,997 km (0.103 R)
• M21: 34,199,719 km (0.075 R)
• M22: 37,350,549 km (0.09 R)
• M23: 37,851,852 km (0.076 R)
• M24: 38,230,783 km (0.085 R)
• M25: 40,425,982 km (0.101 R)
• M26: 42,567,476 km (0.045 R)
• M27: 44,502,375 km (0.1 R)
• M28: 50,657,729 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.9

Radius: 4.2

Gravity: 34.74 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.61 AU - 8.61 AU

Year: 14757 Days

Day: 22.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,709,061 km

• M1: 59,241 km (0.094 R)
• M2: 1,282,652 km (0.109 R)
• M3: 1,749,397 km (0.116 R)
• M4: 2,321,161 km (0.099 R)
• M5: 2,705,777 km (0.12 R)
• M6: 3,131,383 km (0.049 R)
• M7: 3,627,748 km (0.104 R)
• M8: 6,342,052 km (0.118 R)
• M9: 10,222,621 km (0.048 R)
• M10: 12,715,669 km (0.082 R)
• M11: 17,642,675 km (0.051 R)
• M12: 18,943,130 km (0.119 R)
• M13: 22,100,243 km (0.088 R)
• M14: 27,041,909 km (0.074 R)
• M15: 33,274,306 km (0.1 R)
• M16: 41,372,937 km (0.064 R)
• M17: 43,803,005 km (0.09 R)
• M18: 49,733,663 km (0.057 R)
• M19: 53,304,264 km (0.092 R)
• M20: 54,306,869 km (0.118 R)
• M21: 56,177,591 km (0.116 R)
• M22: 58,797,199 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.6

Radius: 7.4

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 7.4 AU - 8.42 AU

Year: 15638 Days

Day: 23 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,709,061 km

• M1: 92,451 km (0.067 R)
• M2: 882,627 km (0.117 R)
• M3: 8,604,720 km (0.104 R)
• M4: 10,151,712 km (0.088 R)
• M5: 16,886,907 km (0.073 R)
• M6: 18,133,955 km (0.112 R)
• M7: 21,518,158 km (0.053 R)
• M8: 25,746,841 km (0.064 R)
• M9: 27,771,349 km (0.081 R)
• M10: 29,113,541 km (0.09 R)
• M11: 37,162,056 km (0.063 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 18,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit