🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.76 AU - 1.02 AU

Year: 321 Days

Day: 13.2 Hours

Environment

Temp: 36 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.47 AU - 2.33 AU

Year: 1003 Days

Day: 34.2 Hours

Environment

Temp: -82 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.02 AU - 2.96 AU

Year: 1504 Days

Day: 24.1 Hours

Environment

Temp: -106 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.3

Radius: 9.8

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.45 AU - 5.79 AU

Year: 5101 Days

Day: 10.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,363,497 km

• M1: 122,072 km (0.112 R)
• M2: 620,532 km (0.112 R)
• M3: 1,577,061 km (0.108 R)
• M4: 2,513,843 km (0.099 R)
• M5: 2,933,165 km (0.071 R)
• M6: 3,497,598 km (0.103 R)
• M7: 4,223,297 km (0.1 R)
• M8: 4,843,530 km (0.11 R)
• M9: 5,307,583 km (0.077 R)
• M10: 7,301,274 km (0.045 R)
• M11: 10,832,531 km (0.103 R)
• M12: 11,447,678 km (0.112 R)
• M13: 12,556,348 km (0.036 R)
• M14: 13,785,893 km (0.091 R)
• M15: 17,653,746 km (0.071 R)
• M16: 20,889,697 km (0.061 R)
• M17: 21,773,820 km (0.113 R)
• M18: 24,575,938 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.8

Radius: 13.8

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.63 AU - 7.55 AU

Year: 5754 Days

Day: 11 Hours

Environment

Temp: -154 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,363,497 km

• M1: 171,589 km (0.029 R)
• M2: 768,484 km (0.078 R)
• M3: 1,256,173 km (0.105 R)
• M4: 1,837,660 km (0.117 R)
• M5: 2,282,265 km (0.101 R)
• M6: 2,765,167 km (0.075 R)
• M7: 3,336,182 km (0.112 R)
• M8: 3,767,174 km (0.055 R)
• M9: 4,235,565 km (0.106 R)
• M10: 5,651,359 km (0.115 R)
• M11: 6,360,153 km (0.097 R)
• M12: 7,160,801 km (0.119 R)
• M13: 8,886,114 km (0.065 R)
• M14: 9,804,794 km (0.081 R)
• M15: 10,308,789 km (0.039 R)
• M16: 12,844,024 km (0.106 R)
• M17: 14,659,245 km (0.085 R)
• M18: 16,114,533 km (0.106 R)
• M19: 17,419,326 km (0.103 R)
• M20: 19,837,575 km (0.114 R)
• M21: 20,645,553 km (0.076 R)
• M22: 24,479,896 km (0.072 R)
• M23: 25,097,137 km (0.061 R)
• M24: 26,363,034 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.2

Radius: 13.3

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5.87 AU - 7.17 AU

Year: 6374 Days

Day: 6.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,363,497 km

• M1: 165,455 km (0.099 R)
• M2: 639,082 km (0.053 R)
• M3: 1,189,453 km (0.073 R)
• M4: 1,617,003 km (0.081 R)
• M5: 2,055,624 km (0.069 R)
• M6: 2,556,628 km (0.085 R)
• M7: 3,159,956 km (0.104 R)
• M8: 4,386,210 km (0.116 R)
• M9: 4,963,508 km (0.095 R)
• M10: 6,237,932 km (0.107 R)
• M11: 7,719,849 km (0.036 R)
• M12: 8,440,162 km (0.051 R)
• M13: 9,514,425 km (0.108 R)
• M14: 13,399,182 km (0.053 R)
• M15: 16,038,837 km (0.12 R)
• M16: 19,439,495 km (0.087 R)
• M17: 22,167,412 km (0.091 R)
• M18: 23,623,000 km (0.111 R)
• M19: 25,314,054 km (0.041 R)
• M20: 26,366,625 km (0.106 R)
• M21: 29,603,623 km (0.05 R)
• M22: 30,673,398 km (0.108 R)
• M23: 33,512,765 km (0.088 R)
• M24: 36,082,408 km (0.103 R)
• M25: 37,190,779 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526

Radius: 11.8

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.86 AU - 9.48 AU

Year: 8941 Days

Day: 6.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,363,497 km

• M1: 148,251 km (0.116 R)
• M2: 743,651 km (0.086 R)
• M3: 1,553,125 km (0.092 R)
• M4: 1,993,691 km (0.097 R)
• M5: 2,463,129 km (0.099 R)
• M6: 3,920,063 km (0.067 R)
• M7: 7,703,542 km (0.113 R)
• M8: 8,483,396 km (0.075 R)
• M9: 11,869,693 km (0.071 R)
• M10: 12,355,139 km (0.07 R)
• M11: 12,966,395 km (0.09 R)
• M12: 13,597,698 km (0.095 R)
• M13: 15,423,989 km (0.098 R)
• M14: 19,782,224 km (0.11 R)
• M15: 20,465,438 km (0.115 R)
• M16: 21,798,654 km (0.092 R)
• M17: 27,339,759 km (0.093 R)
• M18: 28,762,285 km (0.118 R)
• M19: 32,168,778 km (0.085 R)
• M20: 38,820,647 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.7

Radius: 8.7

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 8.17 AU - 8.59 AU

Year: 9288 Days

Day: 6.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,363,497 km

• M1: 108,458 km (0.11 R)
• M2: 916,437 km (0.046 R)
• M3: 1,513,182 km (0.076 R)
• M4: 1,956,291 km (0.1 R)
• M5: 2,687,077 km (0.065 R)
• M6: 2,967,872 km (0.101 R)
• M7: 5,977,482 km (0.091 R)
• M8: 6,651,121 km (0.112 R)
• M9: 8,060,632 km (0.106 R)
• M10: 9,559,902 km (0.028 R)
• M11: 9,962,021 km (0.109 R)
• M12: 10,746,513 km (0.11 R)
• M13: 11,571,545 km (0.055 R)
• M14: 15,297,729 km (0.113 R)
• M15: 16,128,595 km (0.087 R)
• M16: 18,337,109 km (0.11 R)
• M17: 19,116,065 km (0.115 R)
• M18: 20,490,570 km (0.085 R)
• M19: 21,671,047 km (0.071 R)
• M20: 30,041,796 km (0.081 R)
• M21: 35,114,959 km (0.071 R)
• M22: 39,434,747 km (0.081 R)
• M23: 42,458,568 km (0.105 R)
• M24: 46,487,090 km (0.084 R)
• M25: 49,111,784 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547.9

Radius: 5.4

Gravity: 18.79 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 12.58 AU - 17.24 AU

Year: 22044 Days

Day: 23.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,363,497 km

• M1: 81,082 km (0.109 R)
• M2: 463,753 km (0.12 R)
• M3: 794,813 km (0.12 R)
• M4: 3,974,666 km (0.053 R)
• M5: 5,685,617 km (0.109 R)
• M6: 5,929,312 km (0.085 R)
• M7: 6,657,704 km (0.078 R)
• M8: 9,422,871 km (0.058 R)
• M9: 10,292,184 km (0.113 R)
• M10: 14,834,424 km (0.056 R)
• M11: 15,219,040 km (0.116 R)
• M12: 16,907,103 km (0.077 R)
• M13: 18,274,128 km (0.103 R)
• M14: 19,437,850 km (0.087 R)
• M15: 22,310,278 km (0.11 R)
• M16: 33,251,119 km (0.115 R)
• M17: 41,129,092 km (0.087 R)
• M18: 45,658,766 km (0.076 R)
• M19: 54,048,364 km (0.115 R)
• M20: 58,699,512 km (0.119 R)
• M21: 67,101,826 km (0.043 R)
• M22: 67,941,369 km (0.055 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 12,731 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit