🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.2

Radius: 13

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.86 AU - 1.38 AU

Year: 778 Days

Day: 11.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,635,308 km

• M1: 161,715 km (0.106 R)
• M2: 1,127,220 km (0.06 R)
• M3: 1,568,683 km (0.051 R)
• M4: 2,058,168 km (0.088 R)
• M5: 2,785,512 km (0.093 R)
• M6: 3,329,151 km (0.114 R)
• M7: 3,796,046 km (0.098 R)
• M8: 4,878,686 km (0.107 R)
• M9: 5,349,021 km (0.09 R)
• M10: 6,047,494 km (0.062 R)
• M11: 6,476,092 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.2

Radius: 12.5

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.25 AU - 1.27 AU

Year: 928 Days

Day: 14.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,635,308 km

• M1: 155,432 km (0.095 R)
• M2: 582,534 km (0.108 R)
• M3: 1,148,612 km (0.11 R)
• M4: 1,637,199 km (0.112 R)
• M5: 2,459,090 km (0.062 R)
• M6: 3,095,928 km (0.119 R)
• M7: 3,518,243 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.1

Radius: 9.3

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.08 AU - 1.72 AU

Year: 1087 Days

Day: 6.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,635,308 km

• M1: 116,238 km (0.038 R)
• M2: 459,116 km (0.109 R)
• M3: 761,902 km (0.097 R)
• M4: 1,106,276 km (0.084 R)
• M5: 1,581,698 km (0.07 R)
• M6: 2,047,845 km (0.08 R)
• M7: 2,467,916 km (0.103 R)
• M8: 2,863,453 km (0.081 R)
• M9: 3,345,607 km (0.062 R)
• M10: 4,809,871 km (0.05 R)
• M11: 5,684,270 km (0.084 R)
• M12: 6,285,055 km (0.091 R)
• M13: 8,177,768 km (0.063 R)
• M14: 9,849,973 km (0.088 R)
• M15: 10,916,306 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.9

Radius: 10.1

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.54 AU - 1.58 AU

Year: 1278 Days

Day: 9.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,635,308 km

• M1: 132,693 km (0.098 R)
• M2: 661,372 km (0.1 R)
• M3: 1,023,997 km (0.058 R)
• M4: 1,513,332 km (0.097 R)
• M5: 2,029,146 km (0.081 R)
• M6: 2,671,668 km (0.044 R)
• M7: 3,102,361 km (0.108 R)
• M8: 3,474,111 km (0.115 R)
• M9: 4,865,072 km (0.082 R)
• M10: 5,633,856 km (0.093 R)
• M11: 6,619,257 km (0.118 R)
• M12: 8,080,230 km (0.103 R)
• M13: 8,788,127 km (0.071 R)
• M14: 9,360,488 km (0.086 R)
• M15: 9,866,129 km (0.108 R)
• M16: 10,642,991 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.8

Radius: 12.5

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.79 AU - 1.87 AU

Year: 1624 Days

Day: 10.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,635,308 km

• M1: 155,432 km (0.119 R)
• M2: 652,546 km (0.118 R)
• M3: 1,084,884 km (0.102 R)
• M4: 2,210,608 km (0.092 R)
• M5: 2,759,034 km (0.085 R)
• M6: 3,300,279 km (0.099 R)
• M7: 3,717,208 km (0.113 R)
• M8: 4,169,592 km (0.073 R)
• M9: 4,618,086 km (0.116 R)
• M10: 5,034,118 km (0.085 R)
• M11: 5,475,432 km (0.069 R)
• M12: 6,719,338 km (0.091 R)
• M13: 7,228,120 km (0.113 R)
• M14: 8,383,913 km (0.096 R)
• M15: 9,459,971 km (0.104 R)
• M16: 9,929,110 km (0.081 R)
• M17: 11,170,024 km (0.106 R)
• M18: 13,576,306 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.5

Radius: 11.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.79 AU - 2.31 AU

Year: 1925 Days

Day: 7.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,635,308 km

• M1: 146,756 km (0.101 R)
• M2: 545,733 km (0.106 R)
• M3: 1,094,757 km (0.118 R)
• M4: 1,626,129 km (0.03 R)
• M5: 2,221,528 km (0.1 R)
• M6: 2,635,316 km (0.056 R)
• M7: 3,188,529 km (0.108 R)
• M8: 3,604,860 km (0.099 R)
• M9: 4,181,111 km (0.049 R)
• M10: 4,548,224 km (0.116 R)
• M11: 5,432,796 km (0.09 R)
• M12: 6,769,902 km (0.105 R)
• M13: 7,436,061 km (0.046 R)
• M14: 7,894,878 km (0.099 R)
• M15: 8,809,968 km (0.095 R)
• M16: 9,987,004 km (0.098 R)
• M17: 10,379,699 km (0.112 R)
• M18: 11,477,597 km (0.108 R)
• M19: 12,425,450 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.8

Radius: 12.7

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.84 AU - 3.44 AU

Year: 3650 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 157.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,635,308 km

• M1: 158,125 km (0.063 R)
• M2: 1,168,808 km (0.096 R)
• M3: 1,577,510 km (0.064 R)
• M4: 2,876,617 km (0.083 R)
• M5: 4,014,309 km (0.099 R)
• M6: 4,772,621 km (0.106 R)
• M7: 5,175,039 km (0.111 R)
• M8: 5,697,734 km (0.103 R)
• M9: 6,683,883 km (0.108 R)
• M10: 14,472,397 km (0.076 R)
• M11: 16,705,893 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88

Radius: 7.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.55 AU - 8.01 AU

Year: 11581 Days

Day: 17.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,635,308 km

• M1: 116,537 km (0.116 R)
• M2: 413,638 km (0.115 R)
• M3: 763,099 km (0.113 R)
• M4: 1,966,763 km (0.075 R)
• M5: 2,647,882 km (0.088 R)
• M6: 3,052,245 km (0.054 R)
• M7: 4,373,344 km (0.116 R)
• M8: 5,253,428 km (0.119 R)
• M9: 14,219,278 km (0.034 R)
• M10: 14,482,420 km (0.118 R)
• M11: 15,181,940 km (0.038 R)
• M12: 16,244,683 km (0.099 R)
• M13: 16,999,704 km (0.065 R)
• M14: 18,330,526 km (0.053 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.5

Radius: 3.1

Gravity: 94.64 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.44 AU - 11.78 AU

Year: 21088 Days

Day: 21.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,635,308 km

• M1: 47,572 km (0.104 R)
• M2: 641,924 km (0.041 R)
• M3: 1,265,897 km (0.12 R)
• M4: 1,525,749 km (0.107 R)
• M5: 2,216,741 km (0.067 R)
• M6: 2,471,506 km (0.068 R)
• M7: 5,580,749 km (0.098 R)
• M8: 5,833,868 km (0.079 R)
• M9: 8,971,983 km (0.102 R)
• M10: 10,164,278 km (0.052 R)
• M11: 27,994,549 km (0.095 R)
• M12: 30,771,235 km (0.1 R)
• M13: 33,312,603 km (0.102 R)
• M14: 37,753,117 km (0.113 R)
• M15: 37,902,565 km (0.118 R)
• M16: 52,286,849 km (0.098 R)
• M17: 55,697,382 km (0.076 R)
• M18: 55,891,111 km (0.066 R)
• M19: 63,589,417 km (0.117 R)
• M20: 64,866,086 km (0.104 R)
• M21: 71,735,171 km (0.102 R)
• M22: 75,226,187 km (0.11 R)
• M23: 78,342,011 km (0.094 R)
• M24: 79,563,029 km (0.12 R)
• M25: 84,829,473 km (0.067 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 16,645 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit