🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.1

Radius: 11.8

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.56 AU - 0.76 AU

Year: 364 Days

Day: 10.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,291,081 km

• M1: 146,756 km (0.069 R)
• M2: 550,819 km (0.042 R)
• M3: 939,325 km (0.11 R)
• M4: 1,458,280 km (0.062 R)
• M5: 1,894,657 km (0.049 R)
• M6: 2,314,728 km (0.111 R)
• M7: 2,710,713 km (0.094 R)
• M8: 3,526,171 km (0.099 R)
• M9: 4,181,709 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306

Radius: 12.4

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.7 AU - 1.92 AU

Year: 1652 Days

Day: 11.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,291,081 km

• M1: 154,983 km (0.032 R)
• M2: 612,603 km (0.064 R)
• M3: 1,006,943 km (0.097 R)
• M4: 1,554,920 km (0.101 R)
• M5: 2,287,202 km (0.077 R)
• M6: 2,758,884 km (0.116 R)
• M7: 3,665,297 km (0.043 R)
• M8: 4,230,628 km (0.092 R)
• M9: 5,100,091 km (0.062 R)
• M10: 6,669,821 km (0.078 R)
• M11: 8,188,987 km (0.105 R)
• M12: 8,595,594 km (0.111 R)
• M13: 10,359,353 km (0.094 R)
• M14: 10,803,360 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.8

Radius: 11.8

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.85 AU - 2.29 AU

Year: 2020 Days

Day: 6.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,291,081 km

• M1: 146,756 km (0.029 R)
• M2: 517,908 km (0.034 R)
• M3: 1,108,969 km (0.094 R)
• M4: 2,067,293 km (0.068 R)
• M5: 2,540,172 km (0.086 R)
• M6: 3,294,295 km (0.036 R)
• M7: 4,390,099 km (0.095 R)
• M8: 5,133,601 km (0.1 R)
• M9: 5,690,703 km (0.114 R)
• M10: 7,176,659 km (0.104 R)
• M11: 10,098,305 km (0.102 R)
• M12: 10,603,647 km (0.12 R)
• M13: 11,201,739 km (0.079 R)
• M14: 12,221,548 km (0.036 R)
• M15: 13,132,000 km (0.091 R)
• M16: 16,233,015 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.4

Radius: 14.1

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.82 AU - 2.52 AU

Year: 2168 Days

Day: 13.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,291,081 km

• M1: 175,478 km (0.087 R)
• M2: 684,709 km (0.084 R)
• M3: 1,348,625 km (0.091 R)
• M4: 1,845,888 km (0.07 R)
• M5: 2,587,894 km (0.084 R)
• M6: 3,947,738 km (0.063 R)
• M7: 4,568,719 km (0.102 R)
• M8: 5,033,071 km (0.105 R)
• M9: 5,861,544 km (0.061 R)
• M10: 6,805,955 km (0.094 R)
• M11: 8,456,917 km (0.105 R)
• M12: 9,259,809 km (0.089 R)
• M13: 11,780,683 km (0.096 R)
• M14: 12,537,349 km (0.062 R)
• M15: 15,003,021 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.9

Radius: 11.4

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.12 AU - 2.56 AU

Year: 2428 Days

Day: 5.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,291,081 km

• M1: 141,819 km (0.068 R)
• M2: 535,560 km (0.066 R)
• M3: 896,690 km (0.078 R)
• M4: 1,577,809 km (0.113 R)
• M5: 2,525,511 km (0.111 R)
• M6: 4,500,502 km (0.094 R)
• M7: 5,557,262 km (0.105 R)
• M8: 6,231,499 km (0.118 R)
• M9: 6,640,799 km (0.086 R)
• M10: 7,801,379 km (0.08 R)
• M11: 8,460,956 km (0.104 R)
• M12: 9,060,245 km (0.064 R)
• M13: 9,453,239 km (0.073 R)
• M14: 10,700,885 km (0.096 R)
• M15: 12,978,513 km (0.082 R)
• M16: 13,352,358 km (0.109 R)
• M17: 13,991,440 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.7

Radius: 7.3

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.07 AU - 6.83 AU

Year: 11110 Days

Day: 15.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,291,081 km

• M1: 90,806 km (0.066 R)
• M2: 455,825 km (0.099 R)
• M3: 984,653 km (0.055 R)
• M4: 1,270,086 km (0.058 R)
• M5: 1,596,957 km (0.105 R)
• M6: 3,184,041 km (0.049 R)
• M7: 4,474,173 km (0.106 R)
• M8: 4,728,639 km (0.046 R)
• M9: 8,501,348 km (0.116 R)
• M10: 9,387,566 km (0.055 R)
• M11: 10,779,873 km (0.097 R)
• M12: 11,084,305 km (0.108 R)
• M13: 15,841,068 km (0.072 R)
• M14: 16,500,944 km (0.083 R)
• M15: 24,924,950 km (0.11 R)
• M16: 28,815,093 km (0.084 R)
• M17: 31,107,980 km (0.119 R)
• M18: 32,773,004 km (0.065 R)
• M19: 34,826,384 km (0.099 R)
• M20: 35,158,192 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 190.5

Radius: 4.9

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.12 AU - 8.06 AU

Year: 11474 Days

Day: 19.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,291,081 km

• M1: 60,886 km (0.04 R)
• M2: 445,652 km (0.037 R)
• M3: 796,309 km (0.09 R)
• M4: 1,070,822 km (0.059 R)
• M5: 1,553,873 km (0.082 R)
• M6: 2,107,086 km (0.087 R)
• M7: 4,063,527 km (0.116 R)
• M8: 6,705,126 km (0.115 R)
• M9: 8,579,438 km (0.1 R)
• M10: 9,857,303 km (0.088 R)
• M11: 10,127,327 km (0.081 R)
• M12: 11,751,661 km (0.072 R)
• M13: 13,875,651 km (0.054 R)
• M14: 16,056,339 km (0.114 R)
• M15: 17,195,378 km (0.068 R)
• M16: 20,421,755 km (0.085 R)
• M17: 20,713,770 km (0.098 R)
• M18: 25,098,035 km (0.062 R)
• M19: 30,251,083 km (0.107 R)
• M20: 31,592,677 km (0.11 R)
• M21: 34,086,174 km (0.082 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 15,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit