🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.7

Radius: 10.3

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.56 AU - 0.72 AU

Year: 353 Days

Day: 5.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,443,991 km

• M1: 130,898 km (0.098 R)
• M2: 569,669 km (0.06 R)
• M3: 982,858 km (0.095 R)
• M4: 1,460,374 km (0.118 R)
• M5: 2,175,303 km (0.054 R)
• M6: 2,997,941 km (0.05 R)
• M7: 3,350,244 km (0.101 R)
• M8: 4,040,190 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.1

Radius: 8.5

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.02 AU - 1.36 AU

Year: 896 Days

Day: 7.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,443,991 km

• M1: 105,766 km (0.109 R)
• M2: 465,100 km (0.097 R)
• M3: 1,032,225 km (0.087 R)
• M4: 1,501,364 km (0.117 R)
• M5: 1,987,557 km (0.112 R)
• M6: 2,494,395 km (0.119 R)
• M7: 3,032,498 km (0.086 R)
• M8: 3,428,035 km (0.119 R)
• M9: 3,796,345 km (0.081 R)
• M10: 4,700,215 km (0.083 R)
• M11: 5,155,741 km (0.078 R)
• M12: 7,788,664 km (0.082 R)
• M13: 8,244,937 km (0.103 R)
• M14: 9,072,512 km (0.109 R)
• M15: 9,663,723 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553

Radius: 14.7

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.29 AU - 1.45 AU

Year: 1107 Days

Day: 13.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 136.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,443,991 km

• M1: 182,958 km (0.098 R)
• M2: 678,277 km (0.083 R)
• M3: 1,350,121 km (0.118 R)
• M4: 1,919,789 km (0.061 R)
• M5: 3,222,338 km (0.05 R)
• M6: 4,114,241 km (0.093 R)
• M7: 4,725,049 km (0.088 R)
• M8: 5,435,190 km (0.102 R)
• M9: 7,093,333 km (0.05 R)
• M10: 7,673,623 km (0.077 R)
• M11: 8,390,645 km (0.081 R)
• M12: 9,492,284 km (0.113 R)
• M13: 10,258,674 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.2

Radius: 12.1

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.87 AU - 2.11 AU

Year: 1938 Days

Day: 6.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,443,991 km

• M1: 150,944 km (0.039 R)
• M2: 692,489 km (0.068 R)
• M3: 1,560,605 km (0.106 R)
• M4: 2,006,706 km (0.11 R)
• M5: 2,589,689 km (0.117 R)
• M6: 3,222,637 km (0.111 R)
• M7: 3,767,473 km (0.109 R)
• M8: 5,063,439 km (0.031 R)
• M9: 5,467,952 km (0.066 R)
• M10: 6,246,010 km (0.117 R)
• M11: 6,889,880 km (0.089 R)
• M12: 7,522,828 km (0.113 R)
• M13: 8,136,927 km (0.071 R)
• M14: 10,349,480 km (0.055 R)
• M15: 10,933,809 km (0.034 R)
• M16: 11,431,372 km (0.12 R)
• M17: 12,625,761 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.3

Radius: 13.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.57 AU - 4.61 AU

Year: 5709 Days

Day: 10.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,443,991 km

• M1: 167,849 km (0.062 R)
• M2: 639,232 km (0.072 R)
• M3: 1,251,536 km (0.114 R)
• M4: 1,921,585 km (0.112 R)
• M5: 6,170,015 km (0.096 R)
• M6: 6,631,075 km (0.107 R)
• M7: 7,181,296 km (0.088 R)
• M8: 8,522,441 km (0.092 R)
• M9: 10,794,683 km (0.093 R)
• M10: 11,284,616 km (0.08 R)
• M11: 12,598,983 km (0.085 R)
• M12: 13,701,370 km (0.111 R)
• M13: 15,586,453 km (0.072 R)
• M14: 16,271,012 km (0.09 R)
• M15: 22,561,603 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.1

Radius: 14

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.39 AU - 6.57 AU

Year: 8855 Days

Day: 10.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,443,991 km

• M1: 178,919 km (0.057 R)
• M2: 628,311 km (0.077 R)
• M3: 1,162,375 km (0.117 R)
• M4: 2,497,686 km (0.031 R)
• M5: 2,941,094 km (0.105 R)
• M6: 3,533,801 km (0.078 R)
• M7: 10,896,111 km (0.107 R)
• M8: 11,595,181 km (0.112 R)
• M9: 12,846,268 km (0.071 R)
• M10: 13,626,720 km (0.063 R)
• M11: 15,818,180 km (0.106 R)
• M12: 22,652,858 km (0.089 R)
• M13: 23,703,633 km (0.055 R)
• M14: 25,902,423 km (0.044 R)
• M15: 31,772,344 km (0.055 R)
• M16: 34,785,095 km (0.12 R)
• M17: 46,758,161 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.5

Radius: 4.9

Gravity: 13.6 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.33 AU - 9.27 AU

Year: 18019 Days

Day: 23.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,443,991 km

• M1: 62,682 km (0.102 R)
• M2: 222,901 km (0.052 R)
• M3: 428,897 km (0.049 R)
• M4: 603,777 km (0.072 R)
• M5: 788,979 km (0.047 R)
• M6: 1,187,807 km (0.116 R)
• M7: 1,454,091 km (0.102 R)
• M8: 2,218,536 km (0.11 R)
• M9: 3,028,459 km (0.109 R)
• M10: 3,371,487 km (0.073 R)
• M11: 4,875,843 km (0.079 R)
• M12: 7,364,404 km (0.094 R)
• M13: 8,399,920 km (0.106 R)
• M14: 10,644,786 km (0.106 R)
• M15: 10,978,988 km (0.114 R)
• M16: 11,963,940 km (0.053 R)
• M17: 12,570,111 km (0.071 R)
• M18: 13,260,206 km (0.079 R)
• M19: 14,579,210 km (0.108 R)
• M20: 16,867,758 km (0.081 R)
• M21: 21,253,669 km (0.036 R)
• M22: 24,276,892 km (0.105 R)
• M23: 24,661,807 km (0.085 R)
• M24: 28,523,527 km (0.097 R)
• M25: 46,799,151 km (0.112 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 16,033 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit