🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.49 AU - 0.69 AU

Year: 293 Days

Day: 23.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 13.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.74 AU - 0.8 AU

Year: 436 Days

Day: 14.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,496,155 km

• M1: 170,392 km (0.118 R)
• M2: 603,927 km (0.117 R)
• M3: 1,519,466 km (0.12 R)
• M4: 2,001,620 km (0.112 R)
• M5: 2,499,930 km (0.105 R)
• M6: 3,191,371 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.7

Radius: 12.7

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.99 AU - 1.05 AU

Year: 665 Days

Day: 14.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,496,155 km

• M1: 157,975 km (0.078 R)
• M2: 581,487 km (0.099 R)
• M3: 1,219,223 km (0.12 R)
• M4: 1,755,681 km (0.12 R)
• M5: 2,176,799 km (0.116 R)
• M6: 2,978,643 km (0.096 R)
• M7: 3,533,053 km (0.116 R)
• M8: 4,068,613 km (0.029 R)
• M9: 4,673,886 km (0.069 R)
• M10: 5,621,888 km (0.103 R)
• M11: 6,199,485 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.2

Radius: 14.3

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.96 AU - 2.52 AU

Year: 2165 Days

Day: 7.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,496,155 km

• M1: 177,872 km (0.071 R)
• M2: 624,422 km (0.084 R)
• M3: 1,233,734 km (0.066 R)
• M4: 1,694,794 km (0.072 R)
• M5: 2,881,405 km (0.055 R)
• M6: 3,464,387 km (0.07 R)
• M7: 3,926,047 km (0.045 R)
• M8: 4,506,935 km (0.06 R)
• M9: 5,145,120 km (0.115 R)
• M10: 5,961,326 km (0.06 R)
• M11: 8,967,495 km (0.066 R)
• M12: 10,780,771 km (0.067 R)
• M13: 11,251,705 km (0.112 R)
• M14: 11,888,244 km (0.101 R)
• M15: 12,989,134 km (0.111 R)
• M16: 13,943,419 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.5

Radius: 8.7

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.15 AU - 2.59 AU

Year: 2356 Days

Day: 12.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,496,155 km

• M1: 108,458 km (0.102 R)
• M2: 431,889 km (0.063 R)
• M3: 746,194 km (0.114 R)
• M4: 1,258,866 km (0.117 R)
• M5: 2,432,312 km (0.115 R)
• M6: 3,093,534 km (0.072 R)
• M7: 3,832,548 km (0.038 R)
• M8: 4,135,783 km (0.086 R)
• M9: 4,987,443 km (0.117 R)
• M10: 5,729,748 km (0.107 R)
• M11: 6,026,401 km (0.09 R)
• M12: 6,464,274 km (0.066 R)
• M13: 7,667,190 km (0.072 R)
• M14: 8,028,020 km (0.111 R)
• M15: 8,400,220 km (0.116 R)
• M16: 8,686,849 km (0.106 R)
• M17: 9,046,034 km (0.074 R)
• M18: 10,255,383 km (0.059 R)
• M19: 11,030,898 km (0.07 R)
• M20: 11,336,377 km (0.037 R)
• M21: 13,505,397 km (0.114 R)
• M22: 14,391,465 km (0.097 R)
• M23: 15,457,649 km (0.109 R)
• M24: 16,229,723 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.7

Radius: 9.2

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.41 AU - 2.83 AU

Year: 2738 Days

Day: 10.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,496,155 km

• M1: 115,789 km (0.12 R)
• M2: 447,148 km (0.061 R)
• M3: 979,268 km (0.113 R)
• M4: 1,333,366 km (0.083 R)
• M5: 1,686,267 km (0.089 R)
• M6: 2,139,100 km (0.063 R)
• M7: 2,656,709 km (0.115 R)
• M8: 3,172,073 km (0.111 R)
• M9: 3,623,859 km (0.118 R)
• M10: 4,876,442 km (0.104 R)
• M11: 5,455,535 km (0.076 R)
• M12: 7,033,045 km (0.071 R)
• M13: 8,894,042 km (0.115 R)
• M14: 9,476,128 km (0.113 R)
• M15: 11,139,955 km (0.108 R)
• M16: 13,560,449 km (0.099 R)
• M17: 18,086,682 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.2

Radius: 8.5

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.12 AU - 3.24 AU

Year: 3661 Days

Day: 13.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,496,155 km

• M1: 105,766 km (0.073 R)
• M2: 383,270 km (0.103 R)
• M3: 667,506 km (0.099 R)
• M4: 1,147,565 km (0.096 R)
• M5: 1,776,624 km (0.087 R)
• M6: 2,207,466 km (0.105 R)
• M7: 2,889,034 km (0.071 R)
• M8: 3,704,193 km (0.114 R)
• M9: 4,773,518 km (0.112 R)
• M10: 6,870,581 km (0.108 R)
• M11: 8,570,013 km (0.082 R)
• M12: 10,016,176 km (0.119 R)
• M13: 10,383,139 km (0.111 R)
• M14: 10,835,374 km (0.084 R)
• M15: 12,271,364 km (0.108 R)
• M16: 12,606,912 km (0.118 R)
• M17: 15,908,986 km (0.089 R)
• M18: 16,714,121 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.9

Radius: 10.3

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.1 AU - 4.72 AU

Year: 5980 Days

Day: 9.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,496,155 km

• M1: 128,205 km (0.033 R)
• M2: 503,247 km (0.109 R)
• M3: 951,592 km (0.083 R)
• M4: 2,448,169 km (0.094 R)
• M5: 3,383,754 km (0.092 R)
• M6: 5,348,124 km (0.036 R)
• M7: 6,308,243 km (0.04 R)
• M8: 7,656,569 km (0.083 R)
• M9: 9,387,715 km (0.119 R)
• M10: 11,924,446 km (0.068 R)
• M11: 17,134,641 km (0.066 R)
• M12: 20,882,367 km (0.097 R)
• M13: 23,764,370 km (0.061 R)
• M14: 24,601,220 km (0.118 R)
• M15: 26,172,895 km (0.05 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.8

Radius: 9.3

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.88 AU - 6.08 AU

Year: 7176 Days

Day: 10.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,496,155 km

• M1: 127,457 km (0.106 R)
• M2: 426,204 km (0.12 R)
• M3: 736,470 km (0.071 R)
• M4: 1,204,861 km (0.116 R)
• M5: 1,672,953 km (0.095 R)
• M6: 2,746,767 km (0.058 R)
• M7: 3,303,121 km (0.055 R)
• M8: 3,722,294 km (0.116 R)
• M9: 4,251,571 km (0.11 R)
• M10: 4,969,043 km (0.113 R)
• M11: 5,283,647 km (0.074 R)
• M12: 6,308,243 km (0.094 R)
• M13: 10,039,214 km (0.079 R)
• M14: 11,504,226 km (0.095 R)
• M15: 12,107,853 km (0.082 R)
• M16: 12,732,574 km (0.086 R)
• M17: 14,503,514 km (0.045 R)
• M18: 14,970,708 km (0.092 R)
• M19: 15,568,800 km (0.113 R)
• M20: 19,427,079 km (0.071 R)
• M21: 20,210,822 km (0.066 R)
• M22: 22,301,003 km (0.089 R)
• M23: 24,367,100 km (0.039 R)
• M24: 26,041,100 km (0.087 R)
• M25: 27,700,888 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 912.3

Radius: 7.5

Gravity: 16.22 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 8.04 AU - 8.1 AU

Year: 14802 Days

Day: 16.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,496,155 km

• M1: 94,097 km (0.05 R)
• M2: 328,816 km (0.085 R)
• M3: 600,486 km (0.101 R)
• M4: 1,240,914 km (0.116 R)
• M5: 2,150,918 km (0.066 R)
• M6: 3,446,885 km (0.036 R)
• M7: 4,405,657 km (0.115 R)
• M8: 5,233,831 km (0.104 R)
• M9: 5,762,660 km (0.082 R)
• M10: 5,999,922 km (0.088 R)
• M11: 9,491,087 km (0.1 R)
• M12: 13,647,664 km (0.055 R)
• M13: 15,165,783 km (0.115 R)
• M14: 16,082,070 km (0.066 R)
• M15: 19,491,855 km (0.07 R)
• M16: 19,758,887 km (0.093 R)
• M17: 20,574,345 km (0.084 R)
• M18: 21,601,334 km (0.079 R)
• M19: 23,354,920 km (0.054 R)
• M20: 25,306,724 km (0.113 R)
• M21: 26,594,013 km (0.113 R)
• M22: 34,463,011 km (0.083 R)
• M23: 35,776,331 km (0.117 R)
• M24: 36,715,357 km (0.111 R)
• M25: 37,396,027 km (0.094 R)
• M26: 40,203,081 km (0.102 R)
• M27: 43,298,561 km (0.075 R)
• M28: 45,136,819 km (0.082 R)
• M29: 47,507,048 km (0.067 R)
• M30: 49,627,298 km (0.092 R)
• M31: 51,809,782 km (0.074 R)
• M32: 52,151,164 km (0.065 R)
• M33: 61,371,330 km (0.115 R)
• M34: 62,137,420 km (0.109 R)
• M35: 63,103,823 km (0.104 R)
• M36: 63,493,076 km (0.117 R)
• M37: 64,670,860 km (0.029 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 15,039 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit