🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.57 AU - 0.65 AU

Year: 308 Days

Day: 47 Hours

Environment

Temp: -133 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.2

Radius: 12.4

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.8 AU - 0.98 AU

Year: 542 Days

Day: 11.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,709,493 km

• M1: 154,385 km (0.075 R)
• M2: 580,141 km (0.102 R)
• M3: 1,006,644 km (0.058 R)
• M4: 1,798,914 km (0.092 R)
• M5: 2,348,238 km (0.083 R)
• M6: 3,077,976 km (0.105 R)
• M7: 3,733,963 km (0.069 R)
• M8: 4,270,720 km (0.075 R)
• M9: 5,768,643 km (0.116 R)
• M10: 6,973,505 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.6

Radius: 14.4

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.63 AU - 5.27 AU

Year: 6061 Days

Day: 6.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,709,493 km

• M1: 179,368 km (0.12 R)
• M2: 809,624 km (0.112 R)
• M3: 1,422,077 km (0.106 R)
• M4: 2,082,702 km (0.071 R)
• M5: 3,336,930 km (0.059 R)
• M6: 3,982,146 km (0.031 R)
• M7: 4,573,506 km (0.08 R)
• M8: 5,432,946 km (0.106 R)
• M9: 7,212,413 km (0.092 R)
• M10: 10,310,584 km (0.119 R)
• M11: 13,744,005 km (0.075 R)
• M12: 15,656,464 km (0.094 R)
• M13: 20,299,833 km (0.112 R)
• M14: 25,269,624 km (0.11 R)
• M15: 26,317,407 km (0.057 R)
• M16: 27,393,913 km (0.101 R)
• M17: 28,780,686 km (0.12 R)
• M18: 30,116,595 km (0.113 R)
• M19: 31,294,379 km (0.049 R)
• M20: 31,894,715 km (0.084 R)
• M21: 33,015,053 km (0.087 R)
• M22: 35,985,618 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.3

Radius: 14

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.74 AU - 5.44 AU

Year: 6349 Days

Day: 11.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,709,493 km

• M1: 174,132 km (0.111 R)
• M2: 651,948 km (0.032 R)
• M3: 1,249,591 km (0.051 R)
• M4: 1,684,921 km (0.097 R)
• M5: 2,270,596 km (0.072 R)
• M6: 3,617,127 km (0.068 R)
• M7: 4,478,063 km (0.058 R)
• M8: 6,223,421 km (0.096 R)
• M9: 7,390,284 km (0.059 R)
• M10: 10,965,524 km (0.08 R)
• M11: 12,013,756 km (0.059 R)
• M12: 13,075,751 km (0.118 R)
• M13: 14,700,235 km (0.083 R)
• M14: 15,212,757 km (0.106 R)
• M15: 15,855,579 km (0.063 R)
• M16: 20,803,379 km (0.092 R)
• M17: 22,784,205 km (0.088 R)
• M18: 23,394,564 km (0.092 R)
• M19: 24,015,844 km (0.072 R)
• M20: 27,890,578 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.5

Radius: 6.1

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 8.47 AU - 12.11 AU

Year: 21313 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 136.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,709,493 km

• M1: 76,145 km (0.045 R)
• M2: 496,216 km (0.089 R)
• M3: 690,394 km (0.074 R)
• M4: 936,931 km (0.083 R)
• M5: 1,998,628 km (0.034 R)
• M6: 2,891,278 km (0.106 R)
• M7: 3,438,657 km (0.071 R)
• M8: 3,644,503 km (0.117 R)
• M9: 3,968,682 km (0.074 R)
• M10: 4,400,870 km (0.085 R)
• M11: 5,090,816 km (0.091 R)
• M12: 5,324,787 km (0.074 R)
• M13: 5,565,938 km (0.1 R)
• M14: 6,219,681 km (0.105 R)
• M15: 7,766,224 km (0.088 R)
• M16: 8,395,582 km (0.079 R)
• M17: 9,155,838 km (0.054 R)
• M18: 9,402,525 km (0.096 R)
• M19: 10,595,120 km (0.089 R)
• M20: 10,867,089 km (0.087 R)
• M21: 12,357,532 km (0.104 R)
• M22: 13,720,967 km (0.097 R)
• M23: 14,240,820 km (0.12 R)
• M24: 17,261,799 km (0.045 R)
• M25: 17,562,940 km (0.028 R)
• M26: 17,790,927 km (0.11 R)
• M27: 21,454,130 km (0.058 R)
• M28: 25,785,437 km (0.099 R)
• M29: 33,147,747 km (0.102 R)
• M30: 39,540,512 km (0.052 R)
• M31: 47,734,586 km (0.032 R)
• M32: 49,680,705 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.4

Radius: 5.9

Gravity: 14.03 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 9.72 AU - 11.38 AU

Year: 22126 Days

Day: 24.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 72,709,493 km

• M1: 75,547 km (0.112 R)
• M2: 376,538 km (0.099 R)
• M3: 868,116 km (0.106 R)
• M4: 1,115,551 km (0.041 R)
• M5: 1,667,867 km (0.106 R)
• M6: 2,074,025 km (0.076 R)
• M7: 3,161,003 km (0.046 R)
• M8: 3,462,293 km (0.067 R)
• M9: 4,154,183 km (0.088 R)
• M10: 4,583,978 km (0.072 R)
• M11: 4,862,978 km (0.107 R)
• M12: 6,218,783 km (0.046 R)
• M13: 9,044,388 km (0.072 R)
• M14: 9,262,352 km (0.092 R)
• M15: 10,524,061 km (0.072 R)
• M16: 10,948,619 km (0.086 R)
• M17: 11,638,565 km (0.104 R)
• M18: 13,243,899 km (0.092 R)
• M19: 15,296,831 km (0.045 R)
• M20: 16,804,778 km (0.115 R)
• M21: 18,759,723 km (0.09 R)
• M22: 19,203,879 km (0.092 R)
• M23: 19,837,575 km (0.036 R)
• M24: 20,391,536 km (0.081 R)
• M25: 22,611,569 km (0.077 R)
• M26: 23,216,094 km (0.035 R)
• M27: 24,880,968 km (0.114 R)
• M28: 28,330,097 km (0.092 R)
• M29: 29,388,053 km (0.066 R)
• M30: 31,582,803 km (0.062 R)
• M31: 34,675,739 km (0.12 R)
• M32: 42,057,796 km (0.119 R)
• M33: 44,680,994 km (0.041 R)
• M34: 49,741,741 km (0.061 R)
• M35: 52,322,154 km (0.096 R)
• M36: 60,596,562 km (0.077 R)
• M37: 72,491,837 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 274 - 15,860 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit