🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.9

Radius: 13.9

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.64 AU - 0.74 AU

Year: 370 Days

Day: 10.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 84,084,546 km

• M1: 173,384 km (0.056 R)
• M2: 900,130 km (0.044 R)
• M3: 1,371,812 km (0.047 R)
• M4: 2,244,566 km (0.034 R)
• M5: 2,811,542 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.6

Radius: 13.1

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.99 AU - 1.31 AU

Year: 796 Days

Day: 10.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,084,546 km

• M1: 162,912 km (0.037 R)
• M2: 676,930 km (0.049 R)
• M3: 1,139,936 km (0.093 R)
• M4: 1,562,849 km (0.104 R)
• M5: 2,069,387 km (0.11 R)
• M6: 2,563,659 km (0.074 R)
• M7: 3,387,345 km (0.093 R)
• M8: 3,806,967 km (0.114 R)
• M9: 4,235,265 km (0.102 R)
• M10: 4,967,696 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.1

Radius: 11.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.26 AU - 1.9 AU

Year: 1282 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,084,546 km

• M1: 261,198 km (0.119 R)
• M2: 729,140 km (0.042 R)
• M3: 1,229,694 km (0.069 R)
• M4: 1,990,400 km (0.076 R)
• M5: 2,932,567 km (0.12 R)
• M6: 3,825,218 km (0.093 R)
• M7: 4,985,050 km (0.092 R)
• M8: 6,107,782 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.7

Radius: 12.4

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.31 AU - 3.41 AU

Year: 3977 Days

Day: 8.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,084,546 km

• M1: 154,235 km (0.043 R)
• M2: 942,915 km (0.119 R)
• M3: 2,514,291 km (0.119 R)
• M4: 4,734,324 km (0.11 R)
• M5: 5,763,408 km (0.116 R)
• M6: 6,415,355 km (0.118 R)
• M7: 7,511,907 km (0.112 R)
• M8: 9,153,295 km (0.107 R)
• M9: 11,917,565 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.8

Radius: 14

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.05 AU - 4.49 AU

Year: 5697 Days

Day: 10.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,084,546 km

• M1: 174,132 km (0.1 R)
• M2: 673,190 km (0.09 R)
• M3: 1,305,989 km (0.076 R)
• M4: 1,755,082 km (0.085 R)
• M5: 2,276,730 km (0.085 R)
• M6: 3,617,725 km (0.096 R)
• M7: 4,448,891 km (0.114 R)
• M8: 5,678,735 km (0.086 R)
• M9: 6,491,800 km (0.05 R)
• M10: 7,568,455 km (0.047 R)
• M11: 8,761,199 km (0.069 R)
• M12: 12,553,206 km (0.072 R)
• M13: 13,762,705 km (0.061 R)
• M14: 14,988,510 km (0.076 R)
• M15: 16,095,983 km (0.098 R)
• M16: 17,456,426 km (0.082 R)
• M17: 18,682,231 km (0.061 R)
• M18: 20,479,201 km (0.109 R)
• M19: 21,381,425 km (0.064 R)
• M20: 21,919,978 km (0.068 R)
• M21: 24,665,398 km (0.101 R)
• M22: 26,033,769 km (0.113 R)
• M23: 28,734,759 km (0.097 R)
• M24: 30,057,055 km (0.086 R)
• M25: 31,617,510 km (0.095 R)
• M26: 32,518,688 km (0.071 R)
• M27: 34,058,648 km (0.089 R)
• M28: 34,793,772 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.6

Radius: 9.5

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.07 AU - 6.01 AU

Year: 7306 Days

Day: 5.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,084,546 km

• M1: 213,177 km (0.12 R)
• M2: 648,806 km (0.075 R)
• M3: 1,022,801 km (0.088 R)
• M4: 2,349,435 km (0.073 R)
• M5: 2,669,724 km (0.099 R)
• M6: 3,831,201 km (0.071 R)
• M7: 5,448,354 km (0.097 R)
• M8: 7,727,179 km (0.107 R)
• M9: 8,275,754 km (0.076 R)
• M10: 9,343,135 km (0.095 R)
• M11: 10,306,844 km (0.049 R)
• M12: 11,052,141 km (0.109 R)
• M13: 11,917,116 km (0.089 R)
• M14: 15,028,752 km (0.059 R)
• M15: 16,089,849 km (0.073 R)
• M16: 18,473,841 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.8

Radius: 7.2

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.13 AU - 8.79 AU

Year: 13156 Days

Day: 23.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 84,084,546 km

• M1: 89,609 km (0.072 R)
• M2: 682,615 km (0.119 R)
• M3: 962,961 km (0.082 R)
• M4: 1,307,485 km (0.088 R)
• M5: 2,302,760 km (0.117 R)
• M6: 2,969,069 km (0.11 R)
• M7: 3,322,718 km (0.099 R)
• M8: 3,548,162 km (0.065 R)
• M9: 3,919,315 km (0.071 R)
• M10: 5,091,414 km (0.117 R)
• M11: 5,495,029 km (0.062 R)
• M12: 5,992,592 km (0.055 R)
• M13: 7,623,358 km (0.094 R)
• M14: 11,167,631 km (0.11 R)
• M15: 12,082,272 km (0.111 R)
• M16: 12,923,012 km (0.12 R)
• M17: 14,190,555 km (0.04 R)
• M18: 14,922,088 km (0.07 R)
• M19: 17,643,124 km (0.115 R)
• M20: 17,947,556 km (0.116 R)
• M21: 25,661,869 km (0.11 R)
• M22: 29,218,259 km (0.114 R)
• M23: 30,728,300 km (0.114 R)
• M24: 32,176,408 km (0.079 R)
• M25: 32,631,036 km (0.097 R)
• M26: 35,934,007 km (0.109 R)
• M27: 44,166,677 km (0.064 R)
• M28: 48,049,340 km (0.103 R)
• M29: 48,643,244 km (0.118 R)
• M30: 51,997,677 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.6

Radius: 6.7

Gravity: 19.35 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.54 AU - 11.6 AU

Year: 20633 Days

Day: 23.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 84,084,546 km

• M1: 85,570 km (0.092 R)
• M2: 510,727 km (0.052 R)
• M3: 796,459 km (0.052 R)
• M4: 1,259,165 km (0.075 R)
• M5: 1,576,762 km (0.111 R)
• M6: 2,306,350 km (0.093 R)
• M7: 2,537,629 km (0.038 R)
• M8: 3,473,064 km (0.07 R)
• M9: 4,692,586 km (0.116 R)
• M10: 6,043,904 km (0.09 R)
• M11: 6,531,742 km (0.107 R)
• M12: 6,808,648 km (0.099 R)
• M13: 8,313,154 km (0.072 R)
• M14: 12,169,188 km (0.101 R)
• M15: 13,756,272 km (0.046 R)
• M16: 14,366,183 km (0.098 R)
• M17: 15,804,117 km (0.116 R)
• M18: 16,472,970 km (0.086 R)
• M19: 17,867,072 km (0.087 R)
• M20: 21,288,226 km (0.09 R)
• M21: 23,473,103 km (0.049 R)
• M22: 25,574,654 km (0.117 R)
• M23: 26,847,133 km (0.085 R)
• M24: 31,962,034 km (0.105 R)
• M25: 32,895,674 km (0.115 R)
• M26: 38,582,188 km (0.044 R)
• M27: 42,609,962 km (0.076 R)
• M28: 45,056,485 km (0.12 R)
• M29: 52,035,525 km (0.119 R)
• M30: 54,638,977 km (0.04 R)
• M31: 55,017,759 km (0.063 R)
• M32: 56,550,688 km (0.081 R)
• M33: 59,701,668 km (0.074 R)
• M34: 69,187,519 km (0.091 R)
• M35: 70,299,630 km (0.05 R)
• M36: 71,197,965 km (0.097 R)
• M37: 71,649,900 km (0.057 R)
• M38: 79,386,803 km (0.056 R)
• M39: 83,330,801 km (0.119 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 18,170 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit