🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.53 AU - 0.71 AU

Year: 320 Days

Day: 28.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.61 AU - 0.65 AU

Year: 328 Days

Day: 26.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.6

Radius: 8.6

Gravity: 12.85 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.9 AU - 0.98 AU

Year: 598 Days

Day: 6.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,121,810 km

• M1: 106,962 km (0.096 R)
• M2: 455,825 km (0.107 R)
• M3: 1,044,492 km (0.108 R)
• M4: 1,893,460 km (0.063 R)
• M5: 2,312,334 km (0.103 R)
• M6: 2,722,831 km (0.114 R)
• M7: 2,994,501 km (0.117 R)
• M8: 3,496,850 km (0.102 R)
• M9: 3,876,829 km (0.075 R)
• M10: 4,237,659 km (0.119 R)
• M11: 4,506,636 km (0.08 R)
• M12: 4,905,763 km (0.107 R)
• M13: 5,184,913 km (0.102 R)
• M14: 5,511,634 km (0.076 R)
• M15: 6,958,695 km (0.117 R)
• M16: 7,538,685 km (0.104 R)
• M17: 7,958,756 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.7

Radius: 10.1

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.54 AU - 1.64 AU

Year: 1315 Days

Day: 7 Hours

Environment

Temp: -172 °C

Axial Tilt: 146.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,121,810 km

• M1: 125,662 km (0.094 R)
• M2: 458,667 km (0.08 R)
• M3: 962,961 km (0.115 R)
• M4: 1,376,600 km (0.095 R)
• M5: 1,828,535 km (0.109 R)
• M6: 2,711,611 km (0.082 R)
• M7: 3,444,042 km (0.044 R)
• M8: 3,758,796 km (0.035 R)
• M9: 4,285,231 km (0.109 R)
• M10: 4,650,399 km (0.119 R)
• M11: 5,096,201 km (0.071 R)
• M12: 5,464,661 km (0.028 R)
• M13: 5,939,335 km (0.085 R)
• M14: 6,897,359 km (0.111 R)
• M15: 7,794,049 km (0.098 R)
• M16: 8,565,824 km (0.075 R)
• M17: 9,601,341 km (0.117 R)
• M18: 10,325,843 km (0.069 R)
• M19: 11,954,964 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.2

Radius: 12.2

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.61 AU - 2.13 AU

Year: 1678 Days

Day: 7.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,121,810 km

• M1: 151,692 km (0.099 R)
• M2: 619,335 km (0.059 R)
• M3: 1,190,649 km (0.102 R)
• M4: 1,599,052 km (0.113 R)
• M5: 1,982,920 km (0.12 R)
• M6: 2,657,905 km (0.118 R)
• M7: 3,641,811 km (0.087 R)
• M8: 4,300,041 km (0.034 R)
• M9: 5,159,930 km (0.093 R)
• M10: 5,900,140 km (0.086 R)
• M11: 6,440,188 km (0.09 R)
• M12: 6,961,986 km (0.097 R)
• M13: 9,909,064 km (0.102 R)
• M14: 10,436,845 km (0.09 R)
• M15: 11,263,972 km (0.075 R)
• M16: 11,729,819 km (0.046 R)
• M17: 13,087,719 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.8

Radius: 7.9

Gravity: 11.93 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 5.57 AU - 6.23 AU

Year: 9401 Days

Day: 23.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 153.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 43,121,810 km

• M1: 115,190 km (0.105 R)
• M2: 368,908 km (0.084 R)
• M3: 871,707 km (0.073 R)
• M4: 1,190,949 km (0.085 R)
• M5: 1,703,770 km (0.101 R)
• M6: 2,104,842 km (0.109 R)
• M7: 2,667,928 km (0.103 R)
• M8: 3,851,248 km (0.063 R)
• M9: 5,351,265 km (0.118 R)
• M10: 6,105,538 km (0.108 R)
• M11: 6,471,005 km (0.119 R)
• M12: 7,245,773 km (0.058 R)
• M13: 9,792,826 km (0.041 R)
• M14: 10,294,129 km (0.063 R)
• M15: 10,865,293 km (0.049 R)
• M16: 11,293,742 km (0.119 R)
• M17: 12,184,597 km (0.09 R)
• M18: 12,705,796 km (0.11 R)
• M19: 13,061,390 km (0.097 R)
• M20: 13,669,057 km (0.066 R)
• M21: 14,358,852 km (0.085 R)
• M22: 18,461,125 km (0.112 R)
• M23: 18,764,659 km (0.029 R)
• M24: 19,932,570 km (0.099 R)
• M25: 20,819,386 km (0.104 R)
• M26: 25,091,153 km (0.081 R)
• M27: 25,651,397 km (0.092 R)
• M28: 27,579,115 km (0.111 R)
• M29: 30,648,864 km (0.107 R)
• M30: 30,967,806 km (0.065 R)
• M31: 32,706,582 km (0.102 R)
• M32: 33,599,981 km (0.104 R)
• M33: 34,394,794 km (0.101 R)
• M34: 37,944,154 km (0.12 R)
• M35: 41,730,326 km (0.113 R)
• M36: 43,580,253 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.9

Radius: 4.8

Gravity: 18.75 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.11 AU - 7.79 AU

Year: 10746 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 43,121,810 km

• M1: 59,690 km (0.076 R)
• M2: 263,891 km (0.101 R)
• M3: 447,148 km (0.089 R)
• M4: 647,609 km (0.112 R)
• M5: 1,293,573 km (0.115 R)
• M6: 1,524,402 km (0.081 R)
• M7: 1,782,309 km (0.062 R)
• M8: 2,035,429 km (0.048 R)
• M9: 2,276,431 km (0.092 R)
• M10: 5,805,594 km (0.098 R)
• M11: 6,765,414 km (0.097 R)
• M12: 6,954,057 km (0.097 R)
• M13: 10,572,979 km (0.059 R)
• M14: 11,454,260 km (0.118 R)
• M15: 12,383,712 km (0.119 R)
• M16: 12,666,302 km (0.089 R)
• M17: 12,838,040 km (0.077 R)
• M18: 13,840,197 km (0.116 R)
• M19: 14,205,963 km (0.103 R)
• M20: 15,277,533 km (0.105 R)
• M21: 15,932,472 km (0.049 R)
• M22: 16,469,678 km (0.078 R)
• M23: 16,674,328 km (0.057 R)
• M24: 19,112,624 km (0.102 R)
• M25: 19,414,213 km (0.074 R)
• M26: 19,642,500 km (0.066 R)
• M27: 21,533,865 km (0.069 R)
• M28: 21,778,458 km (0.049 R)
• M29: 22,691,304 km (0.102 R)
• M30: 25,582,732 km (0.031 R)
• M31: 29,405,257 km (0.119 R)
• M32: 31,978,041 km (0.076 R)
• M33: 35,485,064 km (0.081 R)
• M34: 36,400,154 km (0.086 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 16,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit