🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295

Radius: 11.5

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.59 AU - 0.85 AU

Year: 429 Days

Day: 13.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 85,523,609 km

• M1: 143,016 km (0.109 R)
• M2: 645,365 km (0.059 R)
• M3: 1,089,671 km (0.074 R)
• M4: 2,375,764 km (0.085 R)
• M5: 2,818,723 km (0.045 R)
• M6: 3,202,292 km (0.093 R)
• M7: 4,112,595 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.6

Radius: 10.1

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.6 AU - 0.84 AU

Year: 429 Days

Day: 11.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,523,609 km

• M1: 125,961 km (0.048 R)
• M2: 443,857 km (0.104 R)
• M3: 819,348 km (0.103 R)
• M4: 1,180,028 km (0.114 R)
• M5: 1,517,072 km (0.115 R)
• M6: 2,074,025 km (0.066 R)
• M7: 2,401,046 km (0.097 R)
• M8: 2,835,328 km (0.09 R)
• M9: 3,572,846 km (0.039 R)
• M10: 3,927,842 km (0.057 R)
• M11: 4,250,973 km (0.105 R)
• M12: 5,184,763 km (0.046 R)
• M13: 5,692,049 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.9

Radius: 10.1

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.71 AU - 0.95 AU

Year: 532 Days

Day: 10.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 85,523,609 km

• M1: 149,448 km (0.114 R)
• M2: 589,266 km (0.071 R)
• M3: 944,561 km (0.052 R)
• M4: 1,301,950 km (0.057 R)
• M5: 1,675,047 km (0.031 R)
• M6: 2,308,445 km (0.058 R)
• M7: 2,720,288 km (0.064 R)
• M8: 3,597,230 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.4

Radius: 11.7

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.12 AU - 1.24 AU

Year: 901 Days

Day: 5.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,523,609 km

• M1: 145,559 km (0.085 R)
• M2: 523,144 km (0.119 R)
• M3: 1,008,140 km (0.044 R)
• M4: 1,402,630 km (0.064 R)
• M5: 1,910,664 km (0.079 R)
• M6: 2,415,856 km (0.104 R)
• M7: 2,857,918 km (0.116 R)
• M8: 3,227,873 km (0.101 R)
• M9: 3,697,910 km (0.102 R)
• M10: 4,504,841 km (0.119 R)
• M11: 5,093,957 km (0.097 R)
• M12: 5,569,230 km (0.08 R)
• M13: 6,407,127 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.2

Radius: 14.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.46 AU - 1.56 AU

Year: 1304 Days

Day: 14.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,523,609 km

• M1: 186,100 km (0.112 R)
• M2: 926,759 km (0.09 R)
• M3: 1,717,084 km (0.032 R)
• M4: 2,996,445 km (0.04 R)
• M5: 3,657,818 km (0.066 R)
• M6: 4,519,800 km (0.057 R)
• M7: 5,237,721 km (0.089 R)
• M8: 6,031,038 km (0.108 R)
• M9: 6,879,707 km (0.05 R)
• M10: 7,555,141 km (0.095 R)
• M11: 8,623,868 km (0.078 R)
• M12: 9,381,133 km (0.032 R)
• M13: 10,428,617 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.9

Radius: 13.1

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.33 AU - 3.45 AU

Year: 3453 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,523,609 km

• M1: 162,912 km (0.076 R)
• M2: 573,857 km (0.059 R)
• M3: 1,111,961 km (0.056 R)
• M4: 1,526,197 km (0.111 R)
• M5: 3,933,377 km (0.118 R)
• M6: 5,192,692 km (0.072 R)
• M7: 5,732,142 km (0.051 R)
• M8: 6,438,992 km (0.025 R)
• M9: 8,621,624 km (0.043 R)
• M10: 12,616,785 km (0.086 R)
• M11: 13,121,080 km (0.091 R)
• M12: 14,440,832 km (0.059 R)
• M13: 17,087,667 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.3

Radius: 13.3

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.59 AU - 4.81 AU

Year: 7162 Days

Day: 10.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,523,609 km

• M1: 166,203 km (0.087 R)
• M2: 588,967 km (0.088 R)
• M3: 1,084,435 km (0.109 R)
• M4: 1,507,348 km (0.114 R)
• M5: 2,315,775 km (0.082 R)
• M6: 3,099,069 km (0.076 R)
• M7: 3,599,175 km (0.055 R)
• M8: 4,411,342 km (0.101 R)
• M9: 4,875,544 km (0.072 R)
• M10: 5,807,090 km (0.068 R)
• M11: 6,298,818 km (0.08 R)
• M12: 7,479,445 km (0.117 R)
• M13: 8,102,819 km (0.119 R)
• M14: 8,760,451 km (0.052 R)
• M15: 9,813,620 km (0.091 R)
• M16: 13,823,591 km (0.116 R)
• M17: 16,772,016 km (0.098 R)
• M18: 17,368,163 km (0.08 R)
• M19: 24,216,455 km (0.101 R)
• M20: 32,370,436 km (0.097 R)
• M21: 33,191,878 km (0.075 R)
• M22: 34,556,061 km (0.119 R)
• M23: 36,066,700 km (0.086 R)
• M24: 37,621,022 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.2

Radius: 6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.92 AU - 8.94 AU

Year: 14236 Days

Day: 16.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,523,609 km

• M1: 74,649 km (0.066 R)
• M2: 1,904,082 km (0.052 R)
• M3: 3,592,742 km (0.076 R)
• M4: 4,472,228 km (0.096 R)
• M5: 9,596,554 km (0.098 R)
• M6: 13,510,483 km (0.103 R)
• M7: 14,252,040 km (0.094 R)
• M8: 20,734,414 km (0.116 R)
• M9: 21,921,025 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979

Radius: 5.1

Gravity: 37.64 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 7.76 AU - 10.84 AU

Year: 19936 Days

Day: 21.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 85,523,609 km

• M1: 63,579 km (0.118 R)
• M2: 513,569 km (0.032 R)
• M3: 843,582 km (0.118 R)
• M4: 1,144,424 km (0.118 R)
• M5: 1,635,853 km (0.09 R)
• M6: 1,919,490 km (0.105 R)
• M7: 2,169,319 km (0.085 R)
• M8: 2,970,116 km (0.109 R)
• M9: 3,512,109 km (0.099 R)
• M10: 3,727,530 km (0.065 R)
• M11: 4,940,320 km (0.115 R)
• M12: 5,656,894 km (0.054 R)
• M13: 6,260,222 km (0.091 R)
• M14: 7,645,199 km (0.045 R)
• M15: 8,381,819 km (0.1 R)
• M16: 8,600,681 km (0.106 R)
• M17: 9,222,410 km (0.074 R)
• M18: 13,973,937 km (0.055 R)
• M19: 14,437,541 km (0.091 R)
• M20: 15,071,537 km (0.085 R)
• M21: 15,395,566 km (0.089 R)
• M22: 19,748,864 km (0.075 R)
• M23: 22,361,441 km (0.062 R)
• M24: 22,782,858 km (0.107 R)
• M25: 25,422,961 km (0.037 R)
• M26: 30,650,509 km (0.095 R)
• M27: 32,765,374 km (0.119 R)
• M28: 40,931,473 km (0.103 R)
• M29: 41,245,928 km (0.026 R)
• M30: 41,561,879 km (0.088 R)
• M31: 50,355,092 km (0.072 R)
• M32: 54,420,863 km (0.059 R)
• M33: 58,302,180 km (0.096 R)
• M34: 60,107,377 km (0.025 R)
• M35: 61,331,387 km (0.027 R)
• M36: 72,642,931 km (0.085 R)
• M37: 76,146,663 km (0.071 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: 328 - 15,034 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit