🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.42 AU - 0.68 AU

Year: 263 Days

Day: 32.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.58 AU - 0.74 AU

Year: 346 Days

Day: 36.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.5

Radius: 8.5

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.8 AU - 1.16 AU

Year: 626 Days

Day: 8 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,925,501 km

• M1: 105,766 km (0.113 R)
• M2: 407,804 km (0.043 R)
• M3: 717,771 km (0.116 R)
• M4: 1,172,099 km (0.12 R)
• M5: 1,469,201 km (0.094 R)
• M6: 1,786,498 km (0.076 R)
• M7: 2,542,117 km (0.102 R)
• M8: 2,960,392 km (0.113 R)
• M9: 3,471,718 km (0.115 R)
• M10: 4,714,876 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 13.7

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.03 AU - 2.27 AU

Year: 2036 Days

Day: 14.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,925,501 km

• M1: 170,392 km (0.094 R)
• M2: 609,911 km (0.066 R)
• M3: 1,364,183 km (0.086 R)
• M4: 1,976,337 km (0.113 R)
• M5: 2,417,202 km (0.094 R)
• M6: 3,413,524 km (0.076 R)
• M7: 4,363,321 km (0.111 R)
• M8: 5,902,683 km (0.082 R)
• M9: 6,928,177 km (0.085 R)
• M10: 7,675,717 km (0.086 R)
• M11: 8,670,992 km (0.115 R)
• M12: 10,370,573 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.6

Radius: 8.5

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.8 AU - 2.9 AU

Year: 2326 Days

Day: 6.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,925,501 km

• M1: 119,977 km (0.113 R)
• M2: 448,794 km (0.058 R)
• M3: 819,946 km (0.027 R)
• M4: 1,166,415 km (0.117 R)
• M5: 2,368,882 km (0.09 R)
• M6: 2,779,977 km (0.085 R)
• M7: 3,284,720 km (0.047 R)
• M8: 3,973,469 km (0.072 R)
• M9: 5,500,115 km (0.096 R)
• M10: 6,469,510 km (0.079 R)
• M11: 6,825,253 km (0.082 R)
• M12: 9,241,857 km (0.096 R)
• M13: 9,759,466 km (0.105 R)
• M14: 11,539,232 km (0.089 R)
• M15: 12,721,055 km (0.117 R)
• M16: 13,361,783 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.9

Radius: 8.1

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.79 AU - 4.05 AU

Year: 4084 Days

Day: 13 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,925,501 km

• M1: 100,679 km (0.105 R)
• M2: 363,224 km (0.117 R)
• M3: 642,224 km (0.12 R)
• M4: 921,672 km (0.106 R)
• M5: 1,173,894 km (0.104 R)
• M6: 1,569,132 km (0.101 R)
• M7: 2,445,028 km (0.068 R)
• M8: 3,555,642 km (0.054 R)
• M9: 3,833,445 km (0.049 R)
• M10: 4,233,769 km (0.078 R)
• M11: 4,779,203 km (0.092 R)
• M12: 5,118,342 km (0.093 R)
• M13: 5,845,238 km (0.07 R)
• M14: 6,149,071 km (0.072 R)
• M15: 6,521,570 km (0.068 R)
• M16: 7,895,476 km (0.11 R)
• M17: 8,370,450 km (0.104 R)
• M18: 9,988,351 km (0.109 R)
• M19: 13,068,720 km (0.116 R)
• M20: 13,541,300 km (0.102 R)
• M21: 16,401,761 km (0.093 R)
• M22: 16,951,832 km (0.076 R)
• M23: 18,735,338 km (0.094 R)
• M24: 19,580,417 km (0.117 R)
• M25: 20,640,467 km (0.106 R)
• M26: 21,411,345 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.2

Radius: 11.9

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.34 AU - 5.22 AU

Year: 5717 Days

Day: 13.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 84.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,925,501 km

• M1: 163,660 km (0.07 R)
• M2: 686,654 km (0.087 R)
• M3: 1,278,763 km (0.104 R)
• M4: 2,091,677 km (0.104 R)
• M5: 2,854,926 km (0.055 R)
• M6: 3,240,290 km (0.109 R)
• M7: 3,894,332 km (0.048 R)
• M8: 5,267,790 km (0.078 R)
• M9: 5,669,909 km (0.056 R)
• M10: 6,119,600 km (0.084 R)
• M11: 6,736,841 km (0.061 R)
• M12: 7,272,401 km (0.073 R)
• M13: 8,294,903 km (0.12 R)
• M14: 9,265,943 km (0.062 R)
• M15: 10,663,486 km (0.1 R)
• M16: 11,350,888 km (0.064 R)
• M17: 14,889,775 km (0.097 R)
• M18: 16,059,780 km (0.07 R)
• M19: 16,534,005 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.9

Radius: 11.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.22 AU - 4.34 AU

Year: 5717 Days

Day: 12.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 61,925,501 km

• M1: 138,228 km (0.106 R)
• M2: 517,908 km (0.062 R)
• M3: 984,952 km (0.066 R)
• M4: 1,608,626 km (0.046 R)
• M5: 2,025,256 km (0.1 R)
• M6: 2,481,380 km (0.077 R)
• M7: 2,858,815 km (0.098 R)
• M8: 3,497,748 km (0.091 R)
• M9: 4,066,369 km (0.087 R)
• M10: 4,470,882 km (0.096 R)
• M11: 6,118,703 km (0.088 R)
• M12: 6,748,809 km (0.11 R)
• M13: 7,882,761 km (0.111 R)
• M14: 9,381,582 km (0.046 R)
• M15: 10,134,209 km (0.034 R)
• M16: 10,746,812 km (0.104 R)
• M17: 11,153,718 km (0.062 R)
• M18: 12,935,578 km (0.106 R)
• M19: 13,814,765 km (0.098 R)
• M20: 14,296,171 km (0.071 R)
• M21: 14,899,798 km (0.087 R)
• M22: 18,560,309 km (0.108 R)
• M23: 19,611,383 km (0.091 R)
• M24: 20,701,952 km (0.078 R)
• M25: 21,760,506 km (0.11 R)
• M26: 22,412,753 km (0.096 R)
• M27: 23,680,296 km (0.109 R)
• M28: 28,537,140 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.6

Radius: 4.1

Gravity: 39.18 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 7.41 AU - 8.23 AU

Year: 14120 Days

Day: 22.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,925,501 km

• M1: 51,162 km (0.108 R)
• M2: 285,582 km (0.109 R)
• M3: 904,618 km (0.063 R)
• M4: 1,037,461 km (0.111 R)
• M5: 1,399,338 km (0.077 R)
• M6: 3,113,580 km (0.1 R)
• M7: 3,526,022 km (0.091 R)
• M8: 3,717,507 km (0.1 R)
• M9: 4,585,773 km (0.107 R)
• M10: 6,188,266 km (0.111 R)
• M11: 6,754,344 km (0.115 R)
• M12: 8,610,554 km (0.086 R)
• M13: 10,111,769 km (0.098 R)
• M14: 11,010,553 km (0.049 R)
• M15: 11,301,970 km (0.047 R)
• M16: 13,159,825 km (0.107 R)
• M17: 14,926,726 km (0.09 R)
• M18: 16,014,751 km (0.113 R)
• M19: 21,253,818 km (0.064 R)
• M20: 23,963,485 km (0.069 R)
• M21: 25,960,766 km (0.111 R)
• M22: 30,969,901 km (0.113 R)
• M23: 32,613,233 km (0.069 R)
• M24: 35,060,655 km (0.051 R)
• M25: 39,905,681 km (0.071 R)
• M26: 41,427,690 km (0.089 R)
• M27: 44,587,197 km (0.099 R)
• M28: 46,527,631 km (0.118 R)
• M29: 47,288,635 km (0.081 R)
• M30: 50,097,185 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 626.4

Radius: 8

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.8 AU - 9.74 AU

Year: 15356 Days

Day: 23.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,925,501 km

• M1: 105,167 km (0.118 R)
• M2: 392,694 km (0.038 R)
• M3: 680,222 km (0.085 R)
• M4: 1,785,600 km (0.102 R)
• M5: 2,068,939 km (0.045 R)
• M6: 2,984,029 km (0.1 R)
• M7: 3,256,596 km (0.103 R)
• M8: 4,454,875 km (0.084 R)
• M9: 4,980,861 km (0.092 R)
• M10: 5,330,322 km (0.101 R)
• M11: 6,559,567 km (0.077 R)
• M12: 6,979,788 km (0.12 R)
• M13: 8,061,979 km (0.115 R)
• M14: 8,495,214 km (0.084 R)
• M15: 9,303,940 km (0.115 R)
• M16: 10,162,931 km (0.063 R)
• M17: 12,668,546 km (0.037 R)
• M18: 15,485,324 km (0.095 R)
• M19: 16,766,929 km (0.105 R)
• M20: 17,156,931 km (0.116 R)
• M21: 17,955,185 km (0.056 R)
• M22: 19,113,821 km (0.03 R)
• M23: 21,305,878 km (0.103 R)
• M24: 23,175,852 km (0.083 R)
• M25: 24,950,232 km (0.087 R)
• M26: 26,286,739 km (0.051 R)
• M27: 30,351,164 km (0.113 R)
• M28: 30,698,081 km (0.1 R)
• M29: 33,322,776 km (0.112 R)
• M30: 33,939,568 km (0.076 R)
• M31: 35,195,891 km (0.081 R)
• M32: 35,835,572 km (0.088 R)
• M33: 38,068,320 km (0.04 R)
• M34: 40,812,094 km (0.053 R)
• M35: 41,376,228 km (0.045 R)
• M36: 48,242,621 km (0.12 R)
• M37: 54,457,963 km (0.085 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 10,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit