🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.51 AU - 0.69 AU

Year: 300 Days

Day: 37.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 110.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.8

Radius: 8

Gravity: 13.25 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.75 AU - 0.95 AU

Year: 506 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,071,330 km

• M1: 101,876 km (0.043 R)
• M2: 508,034 km (0.059 R)
• M3: 757,564 km (0.094 R)
• M4: 1,069,774 km (0.072 R)
• M5: 1,324,988 km (0.089 R)
• M6: 1,810,433 km (0.118 R)
• M7: 2,389,527 km (0.092 R)
• M8: 2,855,524 km (0.063 R)
• M9: 3,587,058 km (0.109 R)
• M10: 3,870,695 km (0.096 R)
• M11: 4,607,315 km (0.104 R)
• M12: 5,330,023 km (0.066 R)
• M13: 5,882,936 km (0.114 R)
• M14: 6,163,881 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.1

Radius: 9.6

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.04 AU - 1.18 AU

Year: 755 Days

Day: 12.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,071,330 km

• M1: 119,379 km (0.034 R)
• M2: 559,945 km (0.107 R)
• M3: 858,542 km (0.113 R)
• M4: 1,241,513 km (0.088 R)
• M5: 1,824,196 km (0.07 R)
• M6: 2,209,112 km (0.093 R)
• M7: 2,787,008 km (0.056 R)
• M8: 3,144,248 km (0.119 R)
• M9: 3,616,080 km (0.08 R)
• M10: 3,996,657 km (0.099 R)
• M11: 4,567,821 km (0.078 R)
• M12: 4,943,013 km (0.063 R)
• M13: 5,283,647 km (0.074 R)
• M14: 5,992,143 km (0.069 R)
• M15: 7,048,603 km (0.052 R)
• M16: 7,739,595 km (0.108 R)
• M17: 8,601,878 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.9

Radius: 9.2

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.42 AU - 1.7 AU

Year: 1258 Days

Day: 11 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,071,330 km

• M1: 115,340 km (0.112 R)
• M2: 668,852 km (0.072 R)
• M3: 1,349,971 km (0.066 R)
• M4: 2,366,339 km (0.117 R)
• M5: 2,862,854 km (0.055 R)
• M6: 3,489,221 km (0.113 R)
• M7: 5,424,269 km (0.079 R)
• M8: 6,196,344 km (0.104 R)
• M9: 7,372,183 km (0.105 R)
• M10: 7,661,356 km (0.112 R)
• M11: 8,123,314 km (0.115 R)
• M12: 8,895,089 km (0.067 R)
• M13: 10,063,000 km (0.073 R)
• M14: 10,918,999 km (0.105 R)
• M15: 12,002,237 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.7

Radius: 13.9

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.52 AU - 4 AU

Year: 4708 Days

Day: 6 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,071,330 km

• M1: 172,935 km (0.08 R)
• M2: 646,861 km (0.073 R)
• M3: 1,286,542 km (0.092 R)
• M4: 1,791,584 km (0.107 R)
• M5: 2,290,792 km (0.113 R)
• M6: 2,865,697 km (0.097 R)
• M7: 3,682,352 km (0.108 R)
• M8: 4,123,366 km (0.047 R)
• M9: 4,981,160 km (0.112 R)
• M10: 5,955,042 km (0.09 R)
• M11: 6,725,771 km (0.115 R)
• M12: 7,321,021 km (0.087 R)
• M13: 8,617,885 km (0.036 R)
• M14: 9,564,091 km (0.039 R)
• M15: 10,666,328 km (0.067 R)
• M16: 11,339,668 km (0.089 R)
• M17: 13,843,787 km (0.071 R)
• M18: 16,756,308 km (0.111 R)
• M19: 18,292,828 km (0.117 R)
• M20: 18,932,957 km (0.066 R)
• M21: 19,588,196 km (0.074 R)
• M22: 23,841,562 km (0.096 R)
• M23: 25,150,394 km (0.1 R)
• M24: 27,079,159 km (0.098 R)
• M25: 27,827,298 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834

Radius: 13.6

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.18 AU - 5.8 AU

Year: 7197 Days

Day: 10.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,071,330 km

• M1: 170,542 km (0.111 R)
• M2: 629,209 km (0.076 R)
• M3: 1,424,471 km (0.108 R)
• M4: 2,487,065 km (0.095 R)
• M5: 3,899,418 km (0.104 R)
• M6: 4,365,266 km (0.106 R)
• M7: 5,255,523 km (0.083 R)
• M8: 7,750,366 km (0.1 R)
• M9: 9,598,798 km (0.113 R)
• M10: 10,454,049 km (0.1 R)
• M11: 12,426,347 km (0.115 R)
• M12: 13,097,742 km (0.12 R)
• M13: 14,090,324 km (0.05 R)
• M14: 15,321,664 km (0.106 R)
• M15: 16,490,024 km (0.104 R)
• M16: 17,028,127 km (0.065 R)
• M17: 18,068,431 km (0.073 R)
• M18: 20,738,154 km (0.078 R)
• M19: 23,745,820 km (0.09 R)
• M20: 24,693,373 km (0.046 R)
• M21: 32,463,636 km (0.038 R)
• M22: 35,267,100 km (0.106 R)
• M23: 35,824,202 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.2

Radius: 4.1

Gravity: 57.66 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 5.78 AU - 6.64 AU

Year: 9992 Days

Day: 24.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 53,071,330 km

• M1: 51,013 km (0.081 R)
• M2: 198,367 km (0.095 R)
• M3: 402,418 km (0.11 R)
• M4: 541,544 km (0.12 R)
• M5: 766,240 km (0.085 R)
• M6: 1,144,274 km (0.101 R)
• M7: 1,878,500 km (0.074 R)
• M8: 2,557,824 km (0.044 R)
• M9: 4,060,385 km (0.049 R)
• M10: 5,773,281 km (0.113 R)
• M11: 6,970,962 km (0.108 R)
• M12: 7,220,640 km (0.106 R)
• M13: 7,870,643 km (0.094 R)
• M14: 8,701,211 km (0.056 R)
• M15: 8,845,124 km (0.067 R)
• M16: 10,918,849 km (0.049 R)
• M17: 11,657,115 km (0.119 R)
• M18: 11,831,995 km (0.08 R)
• M19: 12,918,823 km (0.08 R)
• M20: 13,808,931 km (0.082 R)
• M21: 17,321,339 km (0.069 R)
• M22: 18,481,022 km (0.114 R)
• M23: 19,773,847 km (0.028 R)
• M24: 20,953,575 km (0.079 R)
• M25: 26,342,091 km (0.105 R)
• M26: 27,150,966 km (0.101 R)
• M27: 28,395,172 km (0.083 R)
• M28: 30,774,077 km (0.045 R)
• M29: 31,220,477 km (0.102 R)
• M30: 41,347,804 km (0.116 R)
• M31: 45,251,860 km (0.115 R)
• M32: 47,589,327 km (0.033 R)
• M33: 50,622,872 km (0.113 R)
• M34: 51,088,720 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 786.4

Radius: 7.6

Gravity: 13.61 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.6 AU - 7.54 AU

Year: 10873 Days

Day: 20.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,071,330 km

• M1: 94,546 km (0.033 R)
• M2: 345,721 km (0.068 R)
• M3: 983,307 km (0.107 R)
• M4: 1,582,895 km (0.119 R)
• M5: 2,232,299 km (0.068 R)
• M6: 2,607,640 km (0.045 R)
• M7: 5,084,682 km (0.107 R)
• M8: 7,981,495 km (0.105 R)
• M9: 8,436,422 km (0.116 R)
• M10: 9,348,371 km (0.116 R)
• M11: 9,957,234 km (0.12 R)
• M12: 10,864,545 km (0.098 R)
• M13: 12,598,534 km (0.111 R)
• M14: 13,028,329 km (0.114 R)
• M15: 13,852,314 km (0.086 R)
• M16: 14,376,355 km (0.051 R)
• M17: 15,464,081 km (0.073 R)
• M18: 15,956,707 km (0.111 R)
• M19: 18,578,859 km (0.112 R)
• M20: 20,788,270 km (0.096 R)
• M21: 27,833,581 km (0.106 R)
• M22: 28,984,887 km (0.058 R)
• M23: 29,841,783 km (0.088 R)
• M24: 30,715,584 km (0.063 R)
• M25: 34,501,009 km (0.072 R)
• M26: 36,073,731 km (0.078 R)
• M27: 37,441,505 km (0.117 R)
• M28: 40,811,197 km (0.099 R)
• M29: 41,078,528 km (0.115 R)
• M30: 45,947,191 km (0.109 R)
• M31: 48,146,579 km (0.031 R)
• M32: 48,744,671 km (0.106 R)
• M33: 51,966,560 km (0.107 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: 485 - 18,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit