🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.52 AU - 0.56 AU

Year: 252 Days

Day: 13.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,795,617 km

• M1: 350,358 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.2

Radius: 14.6

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.88 AU - 1.02 AU

Year: 589 Days

Day: 12.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,795,617 km

• M1: 181,612 km (0.066 R)
• M2: 717,023 km (0.091 R)
• M3: 1,357,301 km (0.084 R)
• M4: 1,907,672 km (0.08 R)
• M5: 2,846,847 km (0.092 R)
• M6: 3,863,963 km (0.091 R)
• M7: 4,878,387 km (0.065 R)
• M8: 5,369,816 km (0.113 R)
• M9: 5,856,906 km (0.114 R)
• M10: 6,879,408 km (0.12 R)
• M11: 7,565,912 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.6

Radius: 9.3

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.85 AU - 1.11 AU

Year: 617 Days

Day: 7.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,795,617 km

• M1: 115,639 km (0.115 R)
• M2: 450,589 km (0.032 R)
• M3: 758,760 km (0.072 R)
• M4: 1,352,664 km (0.083 R)
• M5: 1,695,841 km (0.084 R)
• M6: 2,182,932 km (0.108 R)
• M7: 2,539,723 km (0.092 R)
• M8: 3,204,985 km (0.103 R)
• M9: 3,531,557 km (0.109 R)
• M10: 3,982,146 km (0.101 R)
• M11: 4,376,037 km (0.036 R)
• M12: 4,862,828 km (0.118 R)
• M13: 5,224,706 km (0.104 R)
• M14: 5,660,335 km (0.08 R)
• M15: 6,218,933 km (0.103 R)
• M16: 7,559,031 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.5

Radius: 12.8

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.72 AU - 2.76 AU

Year: 2132 Days

Day: 11 Hours

Environment

Temp: -184 °C

Axial Tilt: 156.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,795,617 km

• M1: 159,172 km (0.101 R)
• M2: 565,929 km (0.092 R)
• M3: 1,174,792 km (0.052 R)
• M4: 2,001,769 km (0.098 R)
• M5: 3,627,150 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.4

Radius: 11.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.21 AU - 3.33 AU

Year: 3760 Days

Day: 14.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,795,617 km

• M1: 146,756 km (0.114 R)
• M2: 530,474 km (0.103 R)
• M3: 1,976,786 km (0.074 R)
• M4: 2,592,232 km (0.093 R)
• M5: 3,421,154 km (0.045 R)
• M6: 4,599,536 km (0.063 R)
• M7: 5,856,607 km (0.111 R)
• M8: 8,005,880 km (0.108 R)
• M9: 11,063,959 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 8.7

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3 AU - 4.44 AU

Year: 4562 Days

Day: 9.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,795,617 km

• M1: 108,309 km (0.101 R)
• M2: 424,858 km (0.116 R)
• M3: 1,321,398 km (0.097 R)
• M4: 2,015,383 km (0.1 R)
• M5: 2,606,294 km (0.11 R)
• M6: 3,475,607 km (0.053 R)
• M7: 3,850,200 km (0.112 R)
• M8: 4,251,721 km (0.097 R)
• M9: 4,892,598 km (0.042 R)
• M10: 7,890,091 km (0.081 R)
• M11: 8,500,151 km (0.053 R)
• M12: 8,937,575 km (0.066 R)
• M13: 10,474,993 km (0.049 R)
• M14: 11,164,788 km (0.028 R)
• M15: 12,331,203 km (0.088 R)
• M16: 13,738,171 km (0.109 R)
• M17: 15,658,409 km (0.102 R)
• M18: 17,054,756 km (0.117 R)
• M19: 18,532,184 km (0.08 R)
• M20: 18,864,441 km (0.078 R)
• M21: 19,200,588 km (0.075 R)
• M22: 22,333,167 km (0.072 R)
• M23: 23,474,748 km (0.092 R)
• M24: 24,099,170 km (0.06 R)
• M25: 26,039,155 km (0.073 R)
• M26: 28,080,867 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.6

Radius: 14.8

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.57 AU - 6.23 AU

Year: 7979 Days

Day: 10.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,795,617 km

• M1: 186,549 km (0.079 R)
• M2: 651,349 km (0.109 R)
• M3: 1,134,999 km (0.115 R)
• M4: 2,282,116 km (0.114 R)
• M5: 3,669,636 km (0.095 R)
• M6: 5,763,856 km (0.099 R)
• M7: 6,503,019 km (0.053 R)
• M8: 8,922,765 km (0.049 R)
• M9: 9,433,043 km (0.054 R)
• M10: 9,913,701 km (0.116 R)
• M11: 10,410,965 km (0.106 R)
• M12: 11,135,018 km (0.114 R)
• M13: 11,618,070 km (0.084 R)
• M14: 12,397,475 km (0.074 R)
• M15: 14,498,876 km (0.102 R)
• M16: 16,758,701 km (0.067 R)
• M17: 17,609,764 km (0.11 R)
• M18: 18,940,138 km (0.067 R)
• M19: 19,475,399 km (0.07 R)
• M20: 20,336,634 km (0.115 R)
• M21: 21,967,699 km (0.082 R)
• M22: 22,729,452 km (0.089 R)
• M23: 24,575,639 km (0.086 R)
• M24: 30,923,077 km (0.108 R)
• M25: 31,880,204 km (0.089 R)
• M26: 37,322,425 km (0.089 R)
• M27: 43,884,535 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.3

Radius: 10.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.77 AU - 6.63 AU

Year: 8653 Days

Day: 8.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,795,617 km

• M1: 135,685 km (0.076 R)
• M2: 489,484 km (0.075 R)
• M3: 1,116,299 km (0.115 R)
• M4: 2,735,995 km (0.07 R)
• M5: 4,858,640 km (0.1 R)
• M6: 6,591,432 km (0.118 R)
• M7: 7,560,228 km (0.076 R)
• M8: 8,337,089 km (0.057 R)
• M9: 8,869,957 km (0.114 R)
• M10: 10,748,607 km (0.095 R)
• M11: 11,281,624 km (0.11 R)
• M12: 14,798,820 km (0.089 R)
• M13: 15,276,935 km (0.12 R)
• M14: 16,837,839 km (0.095 R)
• M15: 17,227,691 km (0.043 R)
• M16: 18,433,749 km (0.049 R)
• M17: 21,088,363 km (0.109 R)
• M18: 22,001,508 km (0.094 R)
• M19: 25,576,000 km (0.112 R)
• M20: 26,614,209 km (0.113 R)
• M21: 29,426,200 km (0.079 R)
• M22: 30,278,459 km (0.055 R)
• M23: 32,530,805 km (0.091 R)
• M24: 33,034,950 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 843.9

Radius: 8

Gravity: 13.19 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10 AU - 10.54 AU

Year: 20926 Days

Day: 23.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,795,617 km

• M1: 99,483 km (0.1 R)
• M2: 400,174 km (0.11 R)
• M3: 666,309 km (0.106 R)
• M4: 969,394 km (0.09 R)
• M5: 1,411,456 km (0.048 R)
• M6: 2,902,797 km (0.085 R)
• M7: 4,149,097 km (0.103 R)
• M8: 6,057,667 km (0.068 R)
• M9: 6,916,209 km (0.096 R)
• M10: 7,498,743 km (0.104 R)
• M11: 8,166,398 km (0.118 R)
• M12: 8,817,298 km (0.041 R)
• M13: 11,303,466 km (0.095 R)
• M14: 12,885,463 km (0.117 R)
• M15: 15,244,023 km (0.119 R)
• M16: 19,726,424 km (0.109 R)
• M17: 23,265,760 km (0.114 R)
• M18: 25,467,093 km (0.059 R)
• M19: 32,496,547 km (0.086 R)
• M20: 33,168,690 km (0.055 R)
• M21: 39,640,743 km (0.032 R)
• M22: 40,717,698 km (0.049 R)
• M23: 44,888,786 km (0.033 R)
• M24: 54,068,560 km (0.11 R)
• M25: 61,926,039 km (0.114 R)
• M26: 62,958,713 km (0.078 R)
• M27: 63,583,882 km (0.097 R)
• M28: 65,484,074 km (0.063 R)
• M29: 70,511,610 km (0.117 R)
• M30: 75,790,320 km (0.043 R)
• M31: 80,344,977 km (0.034 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 464.8

Radius: 7.1

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 9.62 AU - 11.78 AU

Year: 22254 Days

Day: 23.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,795,617 km

• M1: 88,712 km (0.074 R)
• M2: 387,608 km (0.075 R)
• M3: 619,934 km (0.074 R)
• M4: 862,282 km (0.076 R)
• M5: 1,334,114 km (0.094 R)
• M6: 1,563,447 km (0.069 R)
• M7: 1,855,313 km (0.109 R)
• M8: 2,266,109 km (0.044 R)
• M9: 3,461,844 km (0.042 R)
• M10: 4,085,518 km (0.081 R)
• M11: 5,438,930 km (0.1 R)
• M12: 6,113,766 km (0.082 R)
• M13: 6,449,912 km (0.117 R)
• M14: 7,391,481 km (0.089 R)
• M15: 7,628,594 km (0.05 R)
• M16: 10,523,911 km (0.109 R)
• M17: 12,884,715 km (0.094 R)
• M18: 13,367,916 km (0.098 R)
• M19: 15,888,939 km (0.075 R)
• M20: 17,095,596 km (0.066 R)
• M21: 18,535,625 km (0.082 R)
• M22: 20,146,644 km (0.119 R)
• M23: 23,644,841 km (0.039 R)
• M24: 25,429,244 km (0.119 R)
• M25: 28,677,164 km (0.073 R)
• M26: 35,041,506 km (0.102 R)
• M27: 37,495,210 km (0.076 R)
• M28: 39,049,682 km (0.059 R)
• M29: 39,915,405 km (0.083 R)
• M30: 47,962,125 km (0.037 R)
• M31: 49,792,454 km (0.072 R)
• M32: 50,639,777 km (0.115 R)
• M33: 54,481,899 km (0.114 R)
• M34: 55,562,594 km (0.028 R)
• M35: 64,727,259 km (0.113 R)
• M36: 65,736,296 km (0.119 R)
• M37: 66,755,656 km (0.099 R)
• M38: 67,578,594 km (0.06 R)
• M39: 67,992,681 km (0.116 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 19,605 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit