🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.55 AU - 0.67 AU

Year: 308 Days

Day: 44.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.5

Radius: 11.8

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.66 AU - 1.02 AU

Year: 497 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,857,179 km

• M1: 146,905 km (0.062 R)
• M2: 593,455 km (0.113 R)
• M3: 985,850 km (0.083 R)
• M4: 1,545,496 km (0.074 R)
• M5: 2,320,113 km (0.104 R)
• M6: 2,833,533 km (0.1 R)
• M7: 3,397,816 km (0.088 R)
• M8: 4,514,714 km (0.075 R)
• M9: 4,999,710 km (0.116 R)
• M10: 5,452,394 km (0.025 R)
• M11: 6,003,213 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.5

Radius: 12.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.13 AU - 1.39 AU

Year: 913 Days

Day: 7.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,857,179 km

• M1: 154,385 km (0.093 R)
• M2: 751,879 km (0.108 R)
• M3: 1,174,194 km (0.091 R)
• M4: 1,899,893 km (0.09 R)
• M5: 2,308,146 km (0.09 R)
• M6: 2,726,122 km (0.066 R)
• M7: 3,778,842 km (0.032 R)
• M8: 4,283,137 km (0.077 R)
• M9: 4,672,540 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.6

Radius: 9.5

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.34 AU - 2 AU

Year: 1393 Days

Day: 10.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,857,179 km

• M1: 118,182 km (0.084 R)
• M2: 465,249 km (0.088 R)
• M3: 865,124 km (0.088 R)
• M4: 1,306,588 km (0.113 R)
• M5: 1,656,647 km (0.071 R)
• M6: 2,316,373 km (0.116 R)
• M7: 2,684,384 km (0.071 R)
• M8: 3,066,308 km (0.038 R)
• M9: 3,484,434 km (0.04 R)
• M10: 4,106,013 km (0.059 R)
• M11: 4,435,577 km (0.1 R)
• M12: 4,851,010 km (0.087 R)
• M13: 6,952,262 km (0.111 R)
• M14: 7,308,305 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.3

Radius: 9.7

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.12 AU - 2.4 AU

Year: 2194 Days

Day: 13.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,857,179 km

• M1: 120,875 km (0.07 R)
• M2: 457,321 km (0.115 R)
• M3: 821,442 km (0.043 R)
• M4: 1,440,627 km (0.083 R)
• M5: 2,252,046 km (0.101 R)
• M6: 2,631,427 km (0.049 R)
• M7: 3,448,231 km (0.074 R)
• M8: 4,034,206 km (0.064 R)
• M9: 5,164,866 km (0.086 R)
• M10: 5,855,261 km (0.079 R)
• M11: 7,091,986 km (0.112 R)
• M12: 7,632,633 km (0.051 R)
• M13: 8,561,337 km (0.096 R)
• M14: 9,743,908 km (0.04 R)
• M15: 10,148,869 km (0.076 R)
• M16: 14,648,623 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.2

Radius: 9

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.52 AU - 3.74 AU

Year: 3575 Days

Day: 14.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 63.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,857,179 km

• M1: 114,293 km (0.089 R)
• M2: 655,538 km (0.109 R)
• M3: 1,060,350 km (0.116 R)
• M4: 1,628,522 km (0.1 R)
• M5: 1,987,707 km (0.074 R)
• M6: 5,049,826 km (0.057 R)
• M7: 6,109,278 km (0.118 R)
• M8: 7,284,818 km (0.1 R)
• M9: 8,378,977 km (0.084 R)
• M10: 11,958,255 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566.2

Radius: 6.9

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.94 AU - 7.56 AU

Year: 10089 Days

Day: 23.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,857,179 km

• M1: 89,609 km (0.118 R)
• M2: 2,373,520 km (0.078 R)
• M3: 2,603,452 km (0.113 R)
• M4: 2,827,250 km (0.059 R)
• M5: 3,063,914 km (0.098 R)
• M6: 4,656,234 km (0.109 R)
• M7: 5,080,643 km (0.091 R)
• M8: 5,302,347 km (0.076 R)
• M9: 6,924,586 km (0.096 R)
• M10: 7,197,453 km (0.108 R)
• M11: 11,006,663 km (0.119 R)
• M12: 11,595,481 km (0.109 R)
• M13: 13,129,457 km (0.106 R)
• M14: 13,914,248 km (0.07 R)
• M15: 14,412,558 km (0.101 R)
• M16: 16,318,884 km (0.099 R)
• M17: 18,313,323 km (0.04 R)
• M18: 18,836,167 km (0.04 R)
• M19: 19,368,885 km (0.12 R)
• M20: 20,704,645 km (0.059 R)
• M21: 22,184,766 km (0.036 R)
• M22: 24,445,190 km (0.101 R)
• M23: 26,379,490 km (0.077 R)
• M24: 29,215,417 km (0.1 R)
• M25: 31,817,822 km (0.112 R)
• M26: 39,546,646 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 126.2

Radius: 4.3

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 10.67 AU - 11.59 AU

Year: 23975 Days

Day: 20.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,857,179 km

• M1: 55,052 km (0.116 R)
• M2: 260,899 km (0.035 R)
• M3: 1,839,455 km (0.112 R)
• M4: 2,773,993 km (0.098 R)
• M5: 4,742,103 km (0.103 R)
• M6: 7,610,941 km (0.051 R)
• M7: 12,967,443 km (0.092 R)
• M8: 14,535,528 km (0.099 R)
• M9: 22,333,915 km (0.049 R)
• M10: 27,858,115 km (0.027 R)
• M11: 34,342,734 km (0.098 R)
• M12: 40,459,791 km (0.091 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 19,283 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit