🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.53 AU - 0.63 AU

Year: 290 Days

Day: 31.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,095,227 km

• M1: 46,824 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 10.5

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.82 AU - 1.18 AU

Year: 656 Days

Day: 7.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,095,227 km

• M1: 130,599 km (0.118 R)
• M2: 491,429 km (0.118 R)
• M3: 921,224 km (0.09 R)
• M4: 1,363,435 km (0.027 R)
• M5: 1,862,493 km (0.1 R)
• M6: 2,408,975 km (0.101 R)
• M7: 2,814,086 km (0.049 R)
• M8: 3,264,525 km (0.057 R)
• M9: 4,446,198 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.1

Radius: 12

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.11 AU - 3.35 AU

Year: 2959 Days

Day: 7.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,095,227 km

• M1: 149,299 km (0.062 R)
• M2: 543,639 km (0.094 R)
• M3: 1,057,208 km (0.059 R)
• M4: 1,485,208 km (0.037 R)
• M5: 1,966,464 km (0.064 R)
• M6: 2,803,165 km (0.075 R)
• M7: 3,231,464 km (0.08 R)
• M8: 3,884,458 km (0.104 R)
• M9: 4,441,710 km (0.071 R)
• M10: 4,882,276 km (0.061 R)
• M11: 5,851,670 km (0.04 R)
• M12: 6,440,188 km (0.084 R)
• M13: 6,854,126 km (0.089 R)
• M14: 8,068,561 km (0.082 R)
• M15: 9,610,167 km (0.091 R)
• M16: 10,034,277 km (0.116 R)
• M17: 10,796,329 km (0.047 R)
• M18: 12,256,105 km (0.061 R)
• M19: 12,755,462 km (0.07 R)
• M20: 13,315,706 km (0.066 R)
• M21: 13,843,637 km (0.085 R)
• M22: 15,043,861 km (0.083 R)
• M23: 15,881,908 km (0.058 R)
• M24: 18,113,011 km (0.094 R)
• M25: 20,482,192 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.9

Radius: 8.6

Gravity: 8.17 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.41 AU - 3.21 AU

Year: 3090 Days

Day: 12.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,095,227 km

• M1: 108,608 km (0.12 R)
• M2: 385,215 km (0.1 R)
• M3: 864,825 km (0.039 R)
• M4: 1,235,828 km (0.044 R)
• M5: 1,526,497 km (0.114 R)
• M6: 1,961,228 km (0.116 R)
• M7: 3,603,214 km (0.041 R)
• M8: 4,038,993 km (0.046 R)
• M9: 4,621,377 km (0.11 R)
• M10: 6,007,102 km (0.107 R)
• M11: 6,336,816 km (0.079 R)
• M12: 7,810,804 km (0.076 R)
• M13: 9,281,650 km (0.115 R)
• M14: 10,255,981 km (0.049 R)
• M15: 12,100,822 km (0.116 R)
• M16: 12,851,953 km (0.037 R)
• M17: 13,400,828 km (0.073 R)
• M18: 14,398,645 km (0.101 R)
• M19: 15,292,642 km (0.056 R)
• M20: 16,810,163 km (0.1 R)
• M21: 17,081,534 km (0.117 R)
• M22: 18,714,095 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.9

Radius: 3.6

Gravity: 43.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.79 AU - 8.19 AU

Year: 13447 Days

Day: 20 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,095,227 km

• M1: 46,675 km (0.064 R)
• M2: 170,841 km (0.094 R)
• M3: 589,864 km (0.087 R)
• M4: 831,764 km (0.032 R)
• M5: 1,136,345 km (0.06 R)
• M6: 1,382,434 km (0.096 R)
• M7: 2,181,436 km (0.088 R)
• M8: 5,177,134 km (0.079 R)
• M9: 7,449,376 km (0.095 R)
• M10: 8,349,656 km (0.08 R)
• M11: 9,676,738 km (0.099 R)
• M12: 12,616,785 km (0.082 R)
• M13: 15,884,751 km (0.115 R)
• M14: 17,906,117 km (0.065 R)
• M15: 18,062,297 km (0.109 R)
• M16: 19,924,791 km (0.029 R)
• M17: 23,090,731 km (0.116 R)
• M18: 27,602,902 km (0.116 R)
• M19: 37,166,843 km (0.098 R)
• M20: 44,160,992 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.6

Radius: 3.5

Gravity: 63.15 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.57 AU - 8.87 AU

Year: 16892 Days

Day: 19.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,095,227 km

• M1: 43,683 km (0.109 R)
• M2: 915,689 km (0.097 R)
• M3: 1,467,406 km (0.109 R)
• M4: 1,973,046 km (0.075 R)
• M5: 2,171,862 km (0.074 R)
• M6: 2,405,833 km (0.078 R)
• M7: 3,077,228 km (0.082 R)
• M8: 3,427,886 km (0.116 R)
• M9: 4,081,329 km (0.114 R)
• M10: 4,605,969 km (0.074 R)
• M11: 5,027,984 km (0.087 R)
• M12: 5,669,161 km (0.1 R)
• M13: 6,153,409 km (0.102 R)
• M14: 7,203,736 km (0.113 R)
• M15: 7,389,686 km (0.116 R)
• M16: 8,215,915 km (0.111 R)
• M17: 8,729,784 km (0.111 R)
• M18: 9,992,390 km (0.111 R)
• M19: 12,074,343 km (0.084 R)
• M20: 12,941,263 km (0.096 R)
• M21: 13,920,381 km (0.105 R)
• M22: 19,207,170 km (0.102 R)
• M23: 20,201,248 km (0.072 R)
• M24: 21,229,284 km (0.11 R)
• M25: 22,291,579 km (0.12 R)
• M26: 22,587,334 km (0.103 R)
• M27: 25,582,582 km (0.1 R)
• M28: 29,065,819 km (0.088 R)
• M29: 33,235,112 km (0.081 R)
• M30: 34,664,819 km (0.098 R)
• M31: 39,485,909 km (0.111 R)
• M32: 40,794,143 km (0.113 R)
• M33: 43,496,628 km (0.096 R)
• M34: 50,092,697 km (0.055 R)
• M35: 52,663,238 km (0.061 R)
• M36: 54,603,223 km (0.066 R)
• M37: 55,862,238 km (0.048 R)
• M38: 60,899,947 km (0.088 R)
• M39: 70,587,606 km (0.064 R)

Asteroid Belt

Center: 9.66 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.4

Radius: 4.2

Gravity: 19.86 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.69 AU - 12.51 AU

Year: 22640 Days

Day: 21.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,095,227 km

• M1: 52,210 km (0.088 R)
• M2: 184,305 km (0.087 R)
• M3: 322,683 km (0.086 R)
• M4: 498,161 km (0.11 R)
• M5: 629,508 km (0.113 R)
• M6: 1,253,630 km (0.058 R)
• M7: 1,410,858 km (0.108 R)
• M8: 1,871,320 km (0.038 R)
• M9: 2,625,143 km (0.085 R)
• M10: 2,982,084 km (0.118 R)
• M11: 4,472,079 km (0.057 R)
• M12: 5,376,697 km (0.112 R)
• M13: 5,639,840 km (0.07 R)
• M14: 5,990,497 km (0.075 R)
• M15: 13,004,842 km (0.058 R)
• M16: 13,616,099 km (0.068 R)
• M17: 16,098,676 km (0.08 R)
• M18: 18,273,081 km (0.085 R)
• M19: 21,747,940 km (0.027 R)
• M20: 23,890,032 km (0.093 R)
• M21: 24,497,848 km (0.039 R)
• M22: 27,581,060 km (0.086 R)
• M23: 29,158,121 km (0.109 R)
• M24: 36,466,276 km (0.107 R)
• M25: 38,088,366 km (0.109 R)
• M26: 41,621,269 km (0.095 R)
• M27: 43,093,462 km (0.119 R)
• M28: 51,144,520 km (0.082 R)
• M29: 54,035,798 km (0.042 R)
• M30: 57,034,188 km (0.099 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 15,293 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit