🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.4

Radius: 11.3

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.43 AU - 0.63 AU

Year: 266 Days

Day: 6.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,880,334 km

• M1: 140,622 km (0.108 R)
• M2: 895,942 km (0.098 R)
• M3: 1,315,414 km (0.091 R)
• M4: 1,840,203 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.6

Radius: 14.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.51 AU - 0.59 AU

Year: 282 Days

Day: 11.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,880,334 km

• M1: 181,612 km (0.092 R)
• M2: 837,000 km (0.093 R)
• M3: 1,776,026 km (0.117 R)
• M4: 2,439,941 km (0.064 R)
• M5: 3,171,475 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.7

Radius: 12.4

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.75 AU - 1.05 AU

Year: 589 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,880,334 km

• M1: 154,235 km (0.063 R)
• M2: 633,098 km (0.054 R)
• M3: 1,115,551 km (0.088 R)
• M4: 1,522,158 km (0.068 R)
• M5: 2,099,756 km (0.065 R)
• M6: 2,787,906 km (0.118 R)
• M7: 3,417,563 km (0.119 R)
• M8: 3,902,260 km (0.07 R)
• M9: 4,314,253 km (0.111 R)
• M10: 5,692,947 km (0.064 R)
• M11: 6,454,849 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.3

Radius: 13.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.98 AU - 1.28 AU

Year: 829 Days

Day: 6.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,880,334 km

• M1: 170,392 km (0.087 R)
• M2: 658,380 km (0.118 R)
• M3: 1,362,687 km (0.059 R)
• M4: 2,094,969 km (0.053 R)
• M5: 2,657,157 km (0.11 R)
• M6: 3,588,105 km (0.056 R)
• M7: 4,587,120 km (0.09 R)
• M8: 5,447,457 km (0.11 R)
• M9: 6,219,531 km (0.089 R)
• M10: 7,465,233 km (0.114 R)
• M11: 8,314,799 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.3

Radius: 9.3

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.08 AU - 1.46 AU

Year: 988 Days

Day: 5.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,880,334 km

• M1: 116,088 km (0.083 R)
• M2: 444,306 km (0.064 R)
• M3: 754,272 km (0.05 R)
• M4: 1,076,207 km (0.119 R)
• M5: 1,841,849 km (0.1 R)
• M6: 2,219,284 km (0.095 R)
• M7: 3,084,259 km (0.072 R)
• M8: 3,620,119 km (0.069 R)
• M9: 4,115,437 km (0.082 R)
• M10: 4,608,662 km (0.107 R)
• M11: 5,624,132 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.6

Radius: 10.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.1 AU - 1.44 AU

Year: 988 Days

Day: 5.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,880,334 km

• M1: 138,677 km (0.095 R)
• M2: 473,477 km (0.101 R)
• M3: 822,639 km (0.102 R)
• M4: 1,373,608 km (0.101 R)
• M5: 1,836,613 km (0.067 R)
• M6: 2,208,364 km (0.085 R)
• M7: 2,969,817 km (0.047 R)
• M8: 3,405,296 km (0.07 R)
• M9: 3,897,922 km (0.119 R)
• M10: 5,628,470 km (0.075 R)
• M11: 6,505,563 km (0.084 R)
• M12: 7,109,639 km (0.081 R)
• M13: 7,797,789 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.3

Radius: 10.1

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2 AU - 2.12 AU

Year: 2041 Days

Day: 5.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,880,334 km

• M1: 125,812 km (0.065 R)
• M2: 562,189 km (0.114 R)
• M3: 967,599 km (0.076 R)
• M4: 1,393,055 km (0.032 R)
• M5: 1,803,552 km (0.03 R)
• M6: 2,348,088 km (0.087 R)
• M7: 2,764,718 km (0.027 R)
• M8: 3,129,887 km (0.11 R)
• M9: 3,545,320 km (0.056 R)
• M10: 3,938,912 km (0.107 R)
• M11: 4,445,301 km (0.105 R)
• M12: 5,086,776 km (0.102 R)
• M13: 5,539,759 km (0.069 R)
• M14: 6,071,430 km (0.11 R)
• M15: 6,609,234 km (0.103 R)
• M16: 7,535,544 km (0.116 R)
• M17: 8,879,830 km (0.081 R)
• M18: 9,361,536 km (0.11 R)
• M19: 9,933,448 km (0.05 R)
• M20: 12,414,529 km (0.073 R)
• M21: 13,504,649 km (0.044 R)
• M22: 14,004,006 km (0.071 R)
• M23: 16,075,338 km (0.102 R)
• M24: 16,895,733 km (0.092 R)
• M25: 18,014,576 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 9.8

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 4.29 AU - 5.41 AU

Year: 7373 Days

Day: 6.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,880,334 km

• M1: 148,401 km (0.113 R)
• M2: 456,423 km (0.09 R)
• M3: 845,527 km (0.095 R)
• M4: 1,193,342 km (0.099 R)
• M5: 1,593,965 km (0.11 R)
• M6: 2,489,159 km (0.114 R)
• M7: 2,929,874 km (0.098 R)
• M8: 3,348,748 km (0.083 R)
• M9: 4,827,074 km (0.115 R)
• M10: 5,237,721 km (0.06 R)
• M11: 6,129,474 km (0.041 R)
• M12: 6,553,733 km (0.098 R)
• M13: 8,144,706 km (0.095 R)
• M14: 9,265,943 km (0.113 R)
• M15: 10,566,846 km (0.05 R)
• M16: 12,204,344 km (0.116 R)
• M17: 13,292,519 km (0.084 R)
• M18: 13,621,784 km (0.075 R)
• M19: 14,792,237 km (0.075 R)
• M20: 15,350,537 km (0.117 R)
• M21: 15,870,240 km (0.034 R)
• M22: 17,054,905 km (0.076 R)
• M23: 17,669,005 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 318.8

Radius: 6.4

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 9.31 AU - 10.81 AU

Year: 22025 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,880,334 km

• M1: 80,633 km (0.054 R)
• M2: 404,812 km (0.115 R)
• M3: 677,978 km (0.052 R)
• M4: 1,158,037 km (0.108 R)
• M5: 2,912,970 km (0.088 R)
• M6: 3,391,384 km (0.115 R)
• M7: 3,949,982 km (0.074 R)
• M8: 5,764,305 km (0.077 R)
• M9: 6,034,329 km (0.049 R)
• M10: 6,434,653 km (0.055 R)
• M11: 7,468,075 km (0.066 R)
• M12: 7,789,262 km (0.108 R)
• M13: 8,657,528 km (0.108 R)
• M14: 10,134,209 km (0.083 R)
• M15: 11,709,923 km (0.059 R)
• M16: 20,353,538 km (0.039 R)
• M17: 23,519,777 km (0.041 R)
• M18: 24,711,474 km (0.075 R)
• M19: 25,219,658 km (0.111 R)
• M20: 26,362,286 km (0.09 R)
• M21: 26,573,668 km (0.079 R)
• M22: 26,999,872 km (0.034 R)
• M23: 31,753,644 km (0.114 R)
• M24: 35,988,311 km (0.052 R)
• M25: 37,169,087 km (0.093 R)
• M26: 46,937,978 km (0.078 R)
• M27: 52,407,575 km (0.115 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: 425 - 16,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit