🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.45 AU - 0.57 AU

Year: 235 Days

Day: 29.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.6

Radius: 12.3

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.6 AU - 0.88 AU

Year: 411 Days

Day: 5 Hours

Environment

Temp: -146 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,529,080 km

• M1: 153,039 km (0.074 R)
• M2: 599,588 km (0.081 R)
• M3: 1,037,611 km (0.1 R)
• M4: 1,437,636 km (0.078 R)
• M5: 2,353,025 km (0.117 R)
• M6: 4,116,634 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.3

Radius: 13.9

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.44 AU - 1.92 AU

Year: 1406 Days

Day: 12.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,529,080 km

• M1: 173,683 km (0.091 R)
• M2: 705,354 km (0.103 R)
• M3: 1,341,893 km (0.085 R)
• M4: 1,880,744 km (0.079 R)
• M5: 2,629,183 km (0.055 R)
• M6: 3,103,408 km (0.111 R)
• M7: 3,718,255 km (0.067 R)
• M8: 4,723,403 km (0.105 R)
• M9: 5,585,087 km (0.118 R)
• M10: 6,775,138 km (0.026 R)
• M11: 7,322,816 km (0.088 R)
• M12: 7,871,840 km (0.053 R)
• M13: 8,360,127 km (0.033 R)
• M14: 9,525,196 km (0.067 R)
• M15: 11,148,333 km (0.06 R)
• M16: 12,063,423 km (0.045 R)
• M17: 13,509,137 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.8

Radius: 12

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.74 AU - 4.34 AU

Year: 4301 Days

Day: 7.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,529,080 km

• M1: 149,448 km (0.101 R)
• M2: 580,290 km (0.105 R)
• M3: 1,005,597 km (0.072 R)
• M4: 1,633,908 km (0.091 R)
• M5: 2,154,509 km (0.104 R)
• M6: 2,837,872 km (0.101 R)
• M7: 3,250,911 km (0.107 R)
• M8: 3,639,866 km (0.084 R)
• M9: 4,222,998 km (0.096 R)
• M10: 4,637,384 km (0.071 R)
• M11: 5,187,007 km (0.104 R)
• M12: 6,107,782 km (0.111 R)
• M13: 9,988,500 km (0.094 R)
• M14: 11,834,688 km (0.089 R)
• M15: 13,739,667 km (0.068 R)
• M16: 15,325,255 km (0.093 R)
• M17: 15,783,323 km (0.059 R)
• M18: 16,309,609 km (0.042 R)
• M19: 16,787,275 km (0.054 R)
• M20: 17,583,285 km (0.068 R)
• M21: 18,404,278 km (0.096 R)
• M22: 20,054,941 km (0.094 R)
• M23: 20,534,253 km (0.112 R)
• M24: 26,242,907 km (0.073 R)
• M25: 26,734,187 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.7

Radius: 9.3

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.61 AU - 5.85 AU

Year: 7723 Days

Day: 8.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,529,080 km

• M1: 116,088 km (0.052 R)
• M2: 496,964 km (0.079 R)
• M3: 1,425,518 km (0.091 R)
• M4: 2,083,001 km (0.056 R)
• M5: 3,070,347 km (0.05 R)
• M6: 3,449,577 km (0.077 R)
• M7: 5,153,198 km (0.042 R)
• M8: 6,291,338 km (0.114 R)
• M9: 6,988,764 km (0.104 R)
• M10: 8,038,492 km (0.112 R)
• M11: 9,770,536 km (0.115 R)
• M12: 11,503,029 km (0.051 R)
• M13: 12,016,449 km (0.1 R)
• M14: 12,877,834 km (0.086 R)
• M15: 13,474,729 km (0.052 R)
• M16: 14,313,973 km (0.06 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.3

Radius: 6

Gravity: 24.87 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 10.15 AU - 10.31 AU

Year: 21127 Days

Day: 20.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 61,529,080 km

• M1: 74,649 km (0.082 R)
• M2: 468,989 km (0.11 R)
• M3: 694,433 km (0.079 R)
• M4: 1,043,595 km (0.112 R)
• M5: 1,437,935 km (0.082 R)
• M6: 1,715,588 km (0.072 R)
• M7: 2,496,639 km (0.079 R)
• M8: 2,794,937 km (0.11 R)
• M9: 3,584,066 km (0.078 R)
• M10: 3,964,344 km (0.116 R)
• M11: 4,164,356 km (0.096 R)
• M12: 4,694,082 km (0.116 R)
• M13: 5,110,413 km (0.09 R)
• M14: 5,633,706 km (0.074 R)
• M15: 7,220,042 km (0.082 R)
• M16: 9,728,649 km (0.088 R)
• M17: 11,578,127 km (0.072 R)
• M18: 15,789,756 km (0.117 R)
• M19: 19,260,726 km (0.085 R)
• M20: 21,837,699 km (0.11 R)
• M21: 23,316,324 km (0.077 R)
• M22: 26,471,343 km (0.054 R)
• M23: 28,150,579 km (0.096 R)
• M24: 28,643,205 km (0.098 R)
• M25: 29,645,511 km (0.079 R)
• M26: 38,671,648 km (0.087 R)
• M27: 39,895,209 km (0.031 R)
• M28: 41,460,751 km (0.077 R)
• M29: 48,308,444 km (0.053 R)
• M30: 49,014,246 km (0.108 R)
• M31: 52,833,181 km (0.084 R)
• M32: 62,714,120 km (0.114 R)
• M33: 67,865,972 km (0.094 R)
• M34: 68,973,744 km (0.081 R)
• M35: 75,164,253 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.2

Radius: 5.5

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 8.7 AU - 11.94 AU

Year: 21406 Days

Day: 21 Hours

Environment

Temp: -223 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,529,080 km

• M1: 68,366 km (0.104 R)
• M2: 370,404 km (0.113 R)
• M3: 696,378 km (0.073 R)
• M4: 994,527 km (0.057 R)
• M5: 1,374,655 km (0.117 R)
• M6: 2,139,549 km (0.107 R)
• M7: 2,462,830 km (0.094 R)
• M8: 2,680,943 km (0.073 R)
• M9: 3,742,340 km (0.091 R)
• M10: 4,181,560 km (0.082 R)
• M11: 8,810,417 km (0.085 R)
• M12: 10,632,220 km (0.027 R)
• M13: 11,153,568 km (0.068 R)
• M14: 11,752,708 km (0.097 R)
• M15: 15,657,063 km (0.11 R)
• M16: 17,181,764 km (0.07 R)
• M17: 19,393,569 km (0.108 R)
• M18: 22,913,008 km (0.111 R)
• M19: 23,392,918 km (0.106 R)
• M20: 40,123,196 km (0.067 R)
• M21: 42,095,046 km (0.049 R)
• M22: 52,100,450 km (0.098 R)
• M23: 53,599,720 km (0.117 R)
• M24: 54,785,433 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 10,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit