🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.54 AU - 0.54 AU

Year: 252 Days

Day: 18.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,807,091 km

• M1: 132,544 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 13.1

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.7 AU - 0.72 AU

Year: 380 Days

Day: 14.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,807,091 km

• M1: 162,912 km (0.074 R)
• M2: 580,141 km (0.093 R)
• M3: 1,022,950 km (0.039 R)
• M4: 1,488,200 km (0.118 R)
• M5: 1,924,726 km (0.098 R)
• M6: 2,839,068 km (0.101 R)
• M7: 3,272,453 km (0.116 R)
• M8: 3,715,562 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.5

Radius: 11.1

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.65 AU - 0.79 AU

Year: 388 Days

Day: 14.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,807,091 km

• M1: 138,228 km (0.065 R)
• M2: 539,749 km (0.049 R)
• M3: 1,294,022 km (0.064 R)
• M4: 1,651,261 km (0.082 R)
• M5: 2,031,389 km (0.091 R)
• M6: 2,379,354 km (0.115 R)
• M7: 2,972,510 km (0.116 R)
• M8: 3,445,688 km (0.113 R)
• M9: 3,841,823 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.9

Radius: 11.1

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.49 AU - 2.39 AU

Year: 1718 Days

Day: 14.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,807,091 km

• M1: 138,079 km (0.104 R)
• M2: 567,126 km (0.063 R)
• M3: 949,797 km (0.115 R)
• M4: 1,403,677 km (0.094 R)
• M5: 1,774,530 km (0.11 R)
• M6: 2,596,421 km (0.114 R)
• M7: 3,258,391 km (0.111 R)
• M8: 4,351,054 km (0.115 R)
• M9: 5,067,777 km (0.1 R)
• M10: 6,762,273 km (0.065 R)
• M11: 7,524,922 km (0.037 R)
• M12: 8,557,746 km (0.098 R)
• M13: 9,318,751 km (0.059 R)
• M14: 9,987,004 km (0.075 R)
• M15: 10,368,030 km (0.118 R)
• M16: 12,781,044 km (0.103 R)
• M17: 14,291,533 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.9

Radius: 9.1

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.38 AU - 4.42 AU

Year: 4897 Days

Day: 7.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,807,091 km

• M1: 113,694 km (0.08 R)
• M2: 419,173 km (0.114 R)
• M3: 729,140 km (0.084 R)
• M4: 1,217,427 km (0.116 R)
• M5: 1,504,506 km (0.081 R)
• M6: 1,950,906 km (0.073 R)
• M7: 2,423,486 km (0.11 R)
• M8: 3,093,086 km (0.119 R)
• M9: 3,462,144 km (0.112 R)
• M10: 4,135,633 km (0.076 R)
• M11: 4,607,914 km (0.091 R)
• M12: 5,267,640 km (0.084 R)
• M13: 5,823,247 km (0.106 R)
• M14: 7,893,532 km (0.091 R)
• M15: 9,131,005 km (0.119 R)
• M16: 9,660,582 km (0.102 R)
• M17: 10,452,553 km (0.049 R)
• M18: 12,120,419 km (0.105 R)
• M19: 14,307,241 km (0.113 R)
• M20: 15,125,990 km (0.113 R)
• M21: 15,599,916 km (0.081 R)
• M22: 18,003,057 km (0.111 R)
• M23: 20,259,591 km (0.088 R)
• M24: 21,488,837 km (0.07 R)
• M25: 23,250,351 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.5

Radius: 8.5

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.76 AU - 4.26 AU

Year: 5106 Days

Day: 14.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,807,091 km

• M1: 105,915 km (0.099 R)
• M2: 423,960 km (0.067 R)
• M3: 748,737 km (0.116 R)
• M4: 1,070,074 km (0.055 R)
• M5: 1,504,655 km (0.083 R)
• M6: 1,901,838 km (0.085 R)
• M7: 2,199,837 km (0.109 R)
• M8: 3,269,910 km (0.105 R)
• M9: 3,604,112 km (0.083 R)
• M10: 4,676,729 km (0.11 R)
• M11: 5,029,331 km (0.073 R)
• M12: 6,084,893 km (0.116 R)
• M13: 6,679,545 km (0.087 R)
• M14: 7,036,336 km (0.051 R)
• M15: 7,374,577 km (0.118 R)
• M16: 7,820,827 km (0.078 R)
• M17: 9,341,340 km (0.085 R)
• M18: 10,724,671 km (0.087 R)
• M19: 12,460,605 km (0.109 R)
• M20: 14,474,342 km (0.082 R)
• M21: 15,532,747 km (0.077 R)
• M22: 16,913,386 km (0.086 R)
• M23: 17,746,347 km (0.114 R)
• M24: 18,316,464 km (0.066 R)
• M25: 20,162,053 km (0.087 R)
• M26: 21,161,666 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.7

Radius: 12.9

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.06 AU - 5.14 AU

Year: 6273 Days

Day: 7 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,807,091 km

• M1: 165,306 km (0.085 R)
• M2: 950,545 km (0.042 R)
• M3: 1,742,516 km (0.108 R)
• M4: 2,585,949 km (0.09 R)
• M5: 3,502,984 km (0.098 R)
• M6: 7,406,890 km (0.083 R)
• M7: 11,285,514 km (0.08 R)
• M8: 13,012,172 km (0.111 R)
• M9: 13,862,038 km (0.057 R)
• M10: 14,748,555 km (0.096 R)
• M11: 17,877,095 km (0.084 R)
• M12: 19,053,682 km (0.093 R)
• M13: 22,115,652 km (0.077 R)
• M14: 22,893,710 km (0.114 R)
• M15: 24,504,730 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.5

Radius: 6

Gravity: 21.15 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 8.93 AU - 10.49 AU

Year: 19238 Days

Day: 22 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,807,091 km

• M1: 74,649 km (0.118 R)
• M2: 661,223 km (0.047 R)
• M3: 1,230,891 km (0.11 R)
• M4: 1,535,173 km (0.042 R)
• M5: 1,869,674 km (0.064 R)
• M6: 2,105,291 km (0.095 R)
• M7: 3,280,681 km (0.119 R)
• M8: 6,882,100 km (0.11 R)
• M9: 7,446,384 km (0.117 R)
• M10: 8,143,360 km (0.071 R)
• M11: 11,178,102 km (0.035 R)
• M12: 15,594,680 km (0.101 R)
• M13: 17,577,301 km (0.102 R)
• M14: 19,908,036 km (0.108 R)
• M15: 21,440,367 km (0.03 R)
• M16: 22,844,343 km (0.116 R)
• M17: 23,360,156 km (0.092 R)
• M18: 24,201,794 km (0.104 R)
• M19: 27,306,548 km (0.101 R)
• M20: 29,194,922 km (0.118 R)
• M21: 30,170,899 km (0.048 R)
• M22: 33,361,073 km (0.116 R)
• M23: 37,334,991 km (0.115 R)
• M24: 40,252,299 km (0.085 R)
• M25: 43,318,008 km (0.043 R)
• M26: 45,554,197 km (0.112 R)
• M27: 48,202,977 km (0.117 R)
• M28: 49,564,916 km (0.117 R)
• M29: 50,952,436 km (0.102 R)
• M30: 52,544,158 km (0.12 R)
• M31: 69,889,881 km (0.045 R)
• M32: 70,323,117 km (0.083 R)
• M33: 73,405,730 km (0.111 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: 288 - 11,430 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit