🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.59 AU - 0.61 AU

Year: 300 Days

Day: 19.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,350,952 km

• M1: 67,319 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.53 AU - 0.81 AU

Year: 354 Days

Day: 20.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717

Radius: 13.3

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.92 AU - 1.32 AU

Year: 765 Days

Day: 5.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 86,350,952 km

• M1: 165,455 km (0.036 R)
• M2: 587,471 km (0.045 R)
• M3: 1,293,872 km (0.108 R)
• M4: 2,226,764 km (0.042 R)
• M5: 2,696,651 km (0.026 R)
• M6: 3,527,667 km (0.098 R)
• M7: 4,250,076 km (0.054 R)
• M8: 4,807,776 km (0.102 R)
• M9: 5,230,690 km (0.079 R)
• M10: 6,031,038 km (0.103 R)
• M11: 7,133,574 km (0.114 R)
• M12: 7,756,949 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.5

Radius: 8.2

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.69 AU - 2.09 AU

Year: 1678 Days

Day: 7.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,350,952 km

• M1: 102,026 km (0.103 R)
• M2: 365,168 km (0.089 R)
• M3: 625,618 km (0.059 R)
• M4: 1,025,194 km (0.032 R)
• M5: 1,658,741 km (0.115 R)
• M6: 2,244,417 km (0.087 R)
• M7: 2,585,500 km (0.102 R)
• M8: 3,194,064 km (0.047 R)
• M9: 4,330,410 km (0.112 R)
• M10: 4,861,781 km (0.049 R)
• M11: 5,458,976 km (0.048 R)
• M12: 5,739,622 km (0.119 R)
• M13: 6,535,482 km (0.114 R)
• M14: 6,852,330 km (0.086 R)
• M15: 7,124,150 km (0.119 R)
• M16: 7,459,698 km (0.111 R)
• M17: 7,923,750 km (0.09 R)
• M18: 9,431,697 km (0.095 R)
• M19: 10,113,414 km (0.09 R)
• M20: 10,754,441 km (0.049 R)
• M21: 11,271,601 km (0.081 R)
• M22: 13,088,168 km (0.093 R)
• M23: 15,739,940 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.7

Radius: 10.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.07 AU - 2.91 AU

Year: 2537 Days

Day: 10 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,350,952 km

• M1: 127,757 km (0.1 R)
• M2: 519,553 km (0.105 R)
• M3: 858,991 km (0.115 R)
• M4: 1,344,137 km (0.079 R)
• M5: 1,771,538 km (0.046 R)
• M6: 2,263,416 km (0.115 R)
• M7: 2,712,060 km (0.066 R)
• M8: 3,301,775 km (0.115 R)
• M9: 3,716,909 km (0.105 R)
• M10: 4,284,782 km (0.102 R)
• M11: 5,019,457 km (0.108 R)
• M12: 5,570,277 km (0.079 R)
• M13: 5,984,364 km (0.109 R)
• M14: 7,180,997 km (0.111 R)
• M15: 7,791,207 km (0.116 R)
• M16: 12,406,151 km (0.117 R)
• M17: 13,413,843 km (0.112 R)
• M18: 15,734,854 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.4

Radius: 10.9

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.25 AU - 3.93 AU

Year: 4392 Days

Day: 5.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,350,952 km

• M1: 136,732 km (0.079 R)
• M2: 547,528 km (0.089 R)
• M3: 1,046,736 km (0.072 R)
• M4: 1,508,695 km (0.104 R)
• M5: 3,094,582 km (0.098 R)
• M6: 4,062,480 km (0.108 R)
• M7: 4,467,591 km (0.098 R)
• M8: 5,085,580 km (0.025 R)
• M9: 6,088,185 km (0.109 R)
• M10: 7,671,080 km (0.093 R)
• M11: 8,405,904 km (0.057 R)
• M12: 9,887,970 km (0.102 R)
• M13: 10,230,250 km (0.07 R)
• M14: 13,467,100 km (0.087 R)
• M15: 14,317,863 km (0.076 R)
• M16: 15,091,134 km (0.059 R)
• M17: 16,362,566 km (0.095 R)
• M18: 17,392,847 km (0.09 R)
• M19: 18,659,791 km (0.03 R)
• M20: 20,743,540 km (0.111 R)
• M21: 22,022,303 km (0.082 R)
• M22: 22,386,723 km (0.086 R)
• M23: 27,329,586 km (0.057 R)
• M24: 28,090,441 km (0.088 R)
• M25: 28,519,188 km (0.07 R)
• M26: 29,214,220 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 14.8

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.37 AU - 6.45 AU

Year: 9277 Days

Day: 9.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,350,952 km

• M1: 199,414 km (0.072 R)
• M2: 851,661 km (0.088 R)
• M3: 1,774,231 km (0.115 R)
• M4: 3,966,737 km (0.078 R)
• M5: 5,550,679 km (0.071 R)
• M6: 6,218,484 km (0.107 R)
• M7: 8,899,727 km (0.115 R)
• M8: 11,669,083 km (0.104 R)
• M9: 15,845,107 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.6

Radius: 5.4

Gravity: 13.05 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 8.1 AU - 13.34 AU

Year: 22662 Days

Day: 21.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,350,952 km

• M1: 67,169 km (0.03 R)
• M2: 320,139 km (0.076 R)
• M3: 1,345,483 km (0.108 R)
• M4: 1,542,204 km (0.114 R)
• M5: 2,090,630 km (0.053 R)
• M6: 3,973,469 km (0.109 R)
• M7: 5,135,246 km (0.069 R)
• M8: 5,429,804 km (0.04 R)
• M9: 7,531,804 km (0.066 R)
• M10: 9,895,450 km (0.088 R)
• M11: 11,615,826 km (0.108 R)
• M12: 13,456,927 km (0.109 R)
• M13: 13,665,017 km (0.083 R)
• M14: 13,875,203 km (0.118 R)
• M15: 14,158,990 km (0.117 R)
• M16: 14,885,287 km (0.107 R)
• M17: 16,569,909 km (0.104 R)
• M18: 20,955,969 km (0.081 R)
• M19: 24,582,670 km (0.032 R)
• M20: 25,418,473 km (0.079 R)
• M21: 25,630,304 km (0.039 R)
• M22: 26,164,967 km (0.108 R)
• M23: 28,265,171 km (0.039 R)
• M24: 39,325,989 km (0.062 R)
• M25: 39,894,162 km (0.103 R)
• M26: 41,192,821 km (0.11 R)
• M27: 43,117,996 km (0.08 R)
• M28: 45,568,708 km (0.089 R)
• M29: 49,416,515 km (0.093 R)
• M30: 50,078,186 km (0.111 R)
• M31: 53,301,871 km (0.058 R)
• M32: 53,823,220 km (0.117 R)
• M33: 57,022,819 km (0.068 R)

Asteroid Belt

Center: 10.98 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 11.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.3

Radius: 4.1

Gravity: 40.35 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 8.71 AU - 13.75 AU

Year: 24299 Days

Day: 20.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,350,952 km

• M1: 51,162 km (0.117 R)
• M2: 354,098 km (0.086 R)
• M3: 1,638,845 km (0.072 R)
• M4: 2,499,481 km (0.096 R)
• M5: 2,959,195 km (0.089 R)
• M6: 3,180,600 km (0.066 R)
• M7: 4,111,099 km (0.037 R)
• M8: 9,957,533 km (0.12 R)
• M9: 10,391,666 km (0.102 R)
• M10: 11,099,414 km (0.117 R)
• M11: 11,770,211 km (0.03 R)
• M12: 15,949,227 km (0.119 R)
• M13: 19,351,831 km (0.106 R)
• M14: 26,710,401 km (0.058 R)
• M15: 36,604,654 km (0.078 R)
• M16: 40,847,549 km (0.035 R)
• M17: 42,761,953 km (0.105 R)
• M18: 47,808,338 km (0.092 R)
• M19: 49,040,276 km (0.041 R)
• M20: 56,099,501 km (0.036 R)
• M21: 65,945,434 km (0.076 R)
• M22: 67,251,723 km (0.095 R)
• M23: 69,466,968 km (0.086 R)
• M24: 69,691,066 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 16,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit