🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.55 AU - 0.61 AU

Year: 290 Days

Day: 25.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 0.5 °

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: 132.7

Radius: 10.5

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.68 AU - 1.02 AU

Year: 514 Days

Day: 11.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,619,312 km

• M1: 130,599 km (0.115 R)
• M2: 488,736 km (0.097 R)
• M3: 864,526 km (0.066 R)
• M4: 1,219,821 km (0.109 R)
• M5: 2,084,497 km (0.097 R)
• M6: 2,866,894 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.3

Radius: 9.4

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.89 AU - 0.93 AU

Year: 569 Days

Day: 6.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,619,312 km

• M1: 116,986 km (0.063 R)
• M2: 451,935 km (0.027 R)
• M3: 759,060 km (0.114 R)
• M4: 1,052,720 km (0.094 R)
• M5: 1,562,699 km (0.041 R)
• M6: 2,061,309 km (0.099 R)
• M7: 2,888,286 km (0.118 R)
• M8: 3,364,755 km (0.088 R)
• M9: 3,808,313 km (0.072 R)
• M10: 4,125,460 km (0.077 R)
• M11: 4,554,507 km (0.114 R)
• M12: 5,047,283 km (0.113 R)
• M13: 5,556,813 km (0.033 R)
• M14: 6,395,309 km (0.117 R)
• M15: 6,845,150 km (0.057 R)
• M16: 7,142,251 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.6

Radius: 9

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.99 AU - 1.09 AU

Year: 696 Days

Day: 5.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,619,312 km

• M1: 111,899 km (0.043 R)
• M2: 514,617 km (0.111 R)
• M3: 1,197,980 km (0.115 R)
• M4: 1,578,856 km (0.032 R)
• M5: 2,576,973 km (0.097 R)
• M6: 2,962,038 km (0.086 R)
• M7: 3,597,978 km (0.027 R)
• M8: 4,006,829 km (0.105 R)
• M9: 4,478,063 km (0.103 R)
• M10: 5,351,116 km (0.04 R)
• M11: 5,753,085 km (0.112 R)
• M12: 6,057,966 km (0.083 R)
• M13: 6,804,609 km (0.073 R)
• M14: 7,320,721 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.1

Radius: 13.1

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.22 AU - 3.02 AU

Year: 2782 Days

Day: 7.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,619,312 km

• M1: 162,912 km (0.069 R)
• M2: 968,497 km (0.106 R)
• M3: 1,518,269 km (0.097 R)
• M4: 2,154,209 km (0.087 R)
• M5: 2,632,623 km (0.099 R)
• M6: 3,130,485 km (0.079 R)
• M7: 4,006,381 km (0.085 R)
• M8: 5,159,481 km (0.104 R)
• M9: 6,579,464 km (0.114 R)
• M10: 8,245,984 km (0.075 R)
• M11: 8,894,641 km (0.044 R)
• M12: 10,255,532 km (0.115 R)
• M13: 10,685,776 km (0.082 R)
• M14: 12,178,912 km (0.103 R)
• M15: 12,617,533 km (0.104 R)
• M16: 14,044,398 km (0.106 R)
• M17: 14,526,851 km (0.027 R)
• M18: 14,970,558 km (0.026 R)
• M19: 15,937,110 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.7

Radius: 9.3

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.47 AU - 4.77 AU

Year: 6514 Days

Day: 14 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,619,312 km

• M1: 116,537 km (0.07 R)
• M2: 586,573 km (0.041 R)
• M3: 1,163,722 km (0.102 R)
• M4: 2,776,387 km (0.115 R)
• M5: 3,840,177 km (0.096 R)
• M6: 8,536,653 km (0.12 R)
• M7: 10,327,339 km (0.099 R)
• M8: 11,266,664 km (0.077 R)
• M9: 11,939,256 km (0.101 R)
• M10: 12,925,256 km (0.083 R)
• M11: 14,740,776 km (0.084 R)
• M12: 16,892,592 km (0.116 R)
• M13: 18,377,350 km (0.062 R)
• M14: 18,746,259 km (0.079 R)
• M15: 20,864,265 km (0.115 R)
• M16: 24,815,744 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.2

Radius: 11.7

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 4.42 AU - 6.84 AU

Year: 8763 Days

Day: 10.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,619,312 km

• M1: 145,708 km (0.069 R)
• M2: 533,765 km (0.083 R)
• M3: 1,350,570 km (0.029 R)
• M4: 2,234,394 km (0.049 R)
• M5: 2,941,693 km (0.089 R)
• M6: 3,629,095 km (0.097 R)
• M7: 4,011,317 km (0.058 R)
• M8: 4,635,739 km (0.117 R)
• M9: 5,724,512 km (0.115 R)
• M10: 6,112,120 km (0.088 R)
• M11: 7,880,965 km (0.029 R)
• M12: 8,485,042 km (0.119 R)
• M13: 11,265,468 km (0.119 R)
• M14: 11,721,741 km (0.098 R)
• M15: 12,296,047 km (0.06 R)
• M16: 15,828,652 km (0.078 R)
• M17: 16,725,790 km (0.093 R)
• M18: 17,521,501 km (0.095 R)
• M19: 21,727,744 km (0.064 R)
• M20: 22,997,082 km (0.098 R)
• M21: 26,741,816 km (0.1 R)
• M22: 28,384,700 km (0.098 R)
• M23: 28,946,889 km (0.067 R)
• M24: 30,580,498 km (0.104 R)
• M25: 31,370,075 km (0.105 R)
• M26: 34,135,691 km (0.082 R)
• M27: 36,948,879 km (0.102 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 18,059 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit