🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.89 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.7 AU - 1.86 AU

Year: 842 Days

Day: 36.9 Hours

Environment

Temp: -49 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.69 AU - 2.81 AU

Year: 1197 Days

Day: 33.1 Hours

Environment

Temp: -64 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,598,826 km

• M1: 50,265 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.33 AU - 3.81 AU

Year: 1908 Days

Day: 19.9 Hours

Environment

Temp: -88 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.91 AU - 5.65 AU

Year: 3707 Days

Day: 37 Hours

Environment

Temp: -127 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.33 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.6

Radius: 13.8

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.75 AU - 6.01 AU

Year: 5058 Days

Day: 9.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 177.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 103,598,826 km

• M1: 171,589 km (0.07 R)
• M2: 689,347 km (0.049 R)
• M3: 1,417,141 km (0.107 R)
• M4: 2,582,957 km (0.082 R)
• M5: 3,017,239 km (0.114 R)
• M6: 3,465,734 km (0.054 R)
• M7: 3,902,111 km (0.089 R)
• M8: 4,798,800 km (0.052 R)
• M9: 6,694,505 km (0.108 R)
• M10: 7,795,545 km (0.054 R)
• M11: 8,389,748 km (0.092 R)
• M12: 9,389,660 km (0.117 R)
• M13: 10,806,352 km (0.061 R)
• M14: 13,084,129 km (0.081 R)
• M15: 13,655,593 km (0.093 R)
• M16: 14,152,108 km (0.026 R)
• M17: 18,135,002 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.6

Radius: 12.3

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 5.99 AU - 7.37 AU

Year: 6125 Days

Day: 7 Hours

Environment

Temp: -150 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 103,598,826 km

• M1: 153,039 km (0.098 R)
• M2: 707,897 km (0.087 R)
• M3: 1,277,117 km (0.086 R)
• M4: 1,729,501 km (0.119 R)
• M5: 2,272,840 km (0.111 R)
• M6: 3,111,337 km (0.112 R)
• M7: 3,754,308 km (0.119 R)
• M8: 4,484,346 km (0.109 R)
• M9: 5,644,328 km (0.044 R)
• M10: 6,886,588 km (0.053 R)
• M11: 7,707,133 km (0.065 R)
• M12: 8,344,120 km (0.116 R)
• M13: 11,149,529 km (0.025 R)
• M14: 11,965,137 km (0.071 R)
• M15: 13,374,648 km (0.076 R)
• M16: 15,567,454 km (0.095 R)
• M17: 16,071,449 km (0.094 R)
• M18: 16,716,814 km (0.101 R)
• M19: 18,969,459 km (0.071 R)
• M20: 23,986,074 km (0.101 R)
• M21: 27,843,904 km (0.08 R)
• M22: 29,058,638 km (0.112 R)
• M23: 33,536,551 km (0.114 R)
• M24: 34,484,254 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.1

Radius: 8.4

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.35 AU - 8.19 AU

Year: 6954 Days

Day: 6.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 103,598,826 km

• M1: 104,419 km (0.087 R)
• M2: 529,277 km (0.1 R)
• M3: 1,120,638 km (0.116 R)
• M4: 1,758,224 km (0.025 R)
• M5: 2,158,697 km (0.107 R)
• M6: 2,436,949 km (0.038 R)
• M7: 2,899,955 km (0.111 R)
• M8: 3,220,842 km (0.108 R)
• M9: 3,671,132 km (0.075 R)
• M10: 4,209,834 km (0.099 R)
• M11: 4,903,818 km (0.082 R)
• M12: 5,196,432 km (0.083 R)
• M13: 6,054,525 km (0.101 R)
• M14: 6,970,812 km (0.101 R)
• M15: 10,490,551 km (0.045 R)
• M16: 11,950,626 km (0.102 R)
• M17: 14,172,753 km (0.089 R)
• M18: 15,494,300 km (0.119 R)
• M19: 15,837,029 km (0.064 R)
• M20: 17,565,932 km (0.111 R)
• M21: 20,084,561 km (0.081 R)
• M22: 20,974,968 km (0.036 R)
• M23: 21,606,720 km (0.061 R)
• M24: 24,723,442 km (0.082 R)
• M25: 25,825,679 km (0.071 R)
• M26: 26,878,100 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 580.8

Radius: 7.8

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 14.74 AU - 23.5 AU

Year: 29660 Days

Day: 19.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 103,598,826 km

• M1: 101,727 km (0.111 R)
• M2: 364,869 km (0.032 R)
• M3: 975,827 km (0.098 R)
• M4: 1,358,199 km (0.119 R)
• M5: 2,217,489 km (0.096 R)
• M6: 3,582,869 km (0.061 R)
• M7: 3,905,402 km (0.087 R)
• M8: 5,435,938 km (0.091 R)
• M9: 5,819,208 km (0.093 R)
• M10: 6,084,594 km (0.118 R)
• M11: 8,012,312 km (0.108 R)
• M12: 9,203,411 km (0.077 R)
• M13: 10,508,353 km (0.104 R)
• M14: 14,025,399 km (0.075 R)
• M15: 17,790,328 km (0.087 R)
• M16: 22,502,213 km (0.065 R)
• M17: 26,872,116 km (0.11 R)
• M18: 27,610,082 km (0.106 R)
• M19: 28,869,995 km (0.083 R)
• M20: 31,639,950 km (0.12 R)
• M21: 33,582,029 km (0.108 R)
• M22: 36,792,100 km (0.073 R)
• M23: 37,549,215 km (0.096 R)
• M24: 44,323,904 km (0.049 R)
• M25: 45,353,736 km (0.041 R)
• M26: 46,224,096 km (0.063 R)
• M27: 57,552,545 km (0.073 R)
• M28: 58,367,404 km (0.087 R)
• M29: 63,419,624 km (0.086 R)
• M30: 64,726,660 km (0.096 R)
• M31: 65,829,496 km (0.038 R)
• M32: 68,072,716 km (0.034 R)
• M33: 73,902,844 km (0.084 R)
• M34: 75,593,001 km (0.046 R)
• M35: 80,310,121 km (0.11 R)
• M36: 83,388,396 km (0.027 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.3

Radius: 3.1

Gravity: 76.41 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 18.91 AU - 20.21 AU

Year: 30690 Days

Day: 24 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 103,598,826 km

• M1: 121,922 km (0.109 R)
• M2: 495,319 km (0.112 R)
• M3: 593,604 km (0.1 R)
• M4: 904,918 km (0.058 R)
• M5: 2,076,867 km (0.031 R)
• M6: 2,919,402 km (0.045 R)
• M7: 4,037,497 km (0.077 R)
• M8: 4,870,308 km (0.087 R)
• M9: 6,420,890 km (0.054 R)
• M10: 12,523,137 km (0.113 R)
• M11: 14,853,423 km (0.066 R)
• M12: 15,896,719 km (0.077 R)
• M13: 18,323,046 km (0.049 R)
• M14: 25,565,379 km (0.071 R)
• M15: 31,605,991 km (0.032 R)
• M16: 33,470,728 km (0.115 R)
• M17: 36,480,937 km (0.083 R)
• M18: 52,664,734 km (0.074 R)
• M19: 55,278,807 km (0.12 R)
• M20: 68,941,132 km (0.115 R)
• M21: 70,131,931 km (0.073 R)
• M22: 75,031,859 km (0.034 R)
• M23: 89,109,168 km (0.088 R)
• M24: 96,616,289 km (0.104 R)

Kuiper Belt

Range: 30.9 - 57.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 20,028 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit