🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.65 AU - 0.73 AU

Year: 211 Days

Day: 31.4 Hours

Environment

Temp: 193 °C

Axial Tilt: 27.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.51 AU - 2.25 AU

Year: 951 Days

Day: 17.4 Hours

Environment

Temp: -56 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 101,610,564 km

• M1: 38,895 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.9 AU - 1.92 AU

Year: 974 Days

Day: 16.7 Hours

Environment

Temp: -64 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 101,610,564 km

• M1: 87,216 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.5

Radius: 13.3

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.52 AU - 7.56 AU

Year: 6892 Days

Day: 7 Hours

Environment

Temp: -153 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 101,610,564 km

• M1: 168,597 km (0.1 R)
• M2: 747,690 km (0.081 R)
• M3: 1,274,424 km (0.066 R)
• M4: 1,796,521 km (0.065 R)
• M5: 2,522,370 km (0.062 R)
• M6: 3,692,375 km (0.109 R)
• M7: 4,400,122 km (0.105 R)
• M8: 5,834,915 km (0.101 R)
• M9: 6,376,759 km (0.113 R)
• M10: 6,889,880 km (0.085 R)
• M11: 11,120,208 km (0.072 R)
• M12: 12,319,833 km (0.113 R)
• M13: 14,457,437 km (0.107 R)
• M14: 17,117,288 km (0.108 R)
• M15: 20,216,357 km (0.094 R)
• M16: 21,394,291 km (0.077 R)
• M17: 22,000,162 km (0.092 R)
• M18: 22,479,324 km (0.099 R)
• M19: 23,958,548 km (0.084 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.7

Radius: 7.3

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 10.2 AU - 16.02 AU

Year: 17514 Days

Day: 21.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 101,610,564 km

• M1: 99,333 km (0.063 R)
• M2: 391,647 km (0.105 R)
• M3: 1,402,630 km (0.1 R)
• M4: 2,670,771 km (0.083 R)
• M5: 4,268,775 km (0.047 R)
• M6: 4,569,467 km (0.112 R)
• M7: 6,164,330 km (0.106 R)
• M8: 8,482,498 km (0.052 R)
• M9: 12,100,972 km (0.103 R)
• M10: 16,148,342 km (0.078 R)
• M11: 19,821,119 km (0.079 R)
• M12: 21,521,449 km (0.111 R)
• M13: 22,257,919 km (0.113 R)
• M14: 27,889,980 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.1

Radius: 4.6

Gravity: 29.49 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 13.96 AU - 16.88 AU

Year: 22341 Days

Day: 21.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 101,610,564 km

• M1: 57,146 km (0.118 R)
• M2: 231,578 km (0.038 R)
• M3: 376,239 km (0.119 R)
• M4: 584,479 km (0.045 R)
• M5: 1,855,762 km (0.041 R)
• M6: 2,073,875 km (0.116 R)
• M7: 2,961,140 km (0.104 R)
• M8: 5,289,930 km (0.081 R)
• M9: 9,976,682 km (0.095 R)
• M10: 10,277,224 km (0.074 R)
• M11: 10,770,598 km (0.105 R)
• M12: 12,208,981 km (0.049 R)
• M13: 13,188,099 km (0.102 R)
• M14: 13,550,126 km (0.096 R)
• M15: 13,770,484 km (0.087 R)
• M16: 18,606,235 km (0.102 R)
• M17: 22,052,073 km (0.076 R)
• M18: 24,571,450 km (0.068 R)
• M19: 25,340,832 km (0.094 R)
• M20: 35,306,593 km (0.12 R)
• M21: 36,853,136 km (0.098 R)
• M22: 38,738,518 km (0.086 R)
• M23: 39,182,674 km (0.079 R)
• M24: 40,839,770 km (0.038 R)
• M25: 43,491,991 km (0.114 R)
• M26: 53,951,724 km (0.072 R)
• M27: 54,135,879 km (0.097 R)
• M28: 54,690,738 km (0.119 R)
• M29: 55,062,937 km (0.059 R)
• M30: 58,100,522 km (0.072 R)
• M31: 59,857,250 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.7

Radius: 4.8

Gravity: 26.81 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 14.08 AU - 18.14 AU

Year: 23857 Days

Day: 15.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 110.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 101,610,564 km

• M1: 60,288 km (0.078 R)
• M2: 617,540 km (0.066 R)
• M3: 951,442 km (0.106 R)
• M4: 1,274,723 km (0.052 R)
• M5: 1,722,320 km (0.101 R)
• M6: 2,095,717 km (0.063 R)
• M7: 2,268,203 km (0.093 R)
• M8: 2,593,279 km (0.106 R)
• M9: 3,001,980 km (0.081 R)
• M10: 3,250,163 km (0.118 R)
• M11: 3,452,420 km (0.028 R)
• M12: 4,044,378 km (0.093 R)
• M13: 4,486,739 km (0.076 R)
• M14: 7,002,228 km (0.098 R)
• M15: 10,325,544 km (0.114 R)
• M16: 10,763,716 km (0.099 R)
• M17: 11,610,141 km (0.092 R)
• M18: 13,656,490 km (0.113 R)
• M19: 16,180,206 km (0.082 R)
• M20: 16,942,408 km (0.114 R)
• M21: 17,375,942 km (0.096 R)
• M22: 21,718,619 km (0.105 R)
• M23: 22,645,228 km (0.078 R)
• M24: 29,756,213 km (0.074 R)
• M25: 32,466,029 km (0.105 R)
• M26: 38,967,253 km (0.068 R)
• M27: 44,131,222 km (0.117 R)
• M28: 45,282,378 km (0.067 R)
• M29: 45,448,432 km (0.09 R)
• M30: 46,284,684 km (0.11 R)
• M31: 47,131,408 km (0.088 R)
• M32: 56,364,289 km (0.08 R)
• M33: 60,090,622 km (0.099 R)
• M34: 60,291,083 km (0.095 R)
• M35: 61,503,873 km (0.067 R)
• M36: 61,707,476 km (0.118 R)
• M37: 68,029,333 km (0.103 R)
• M38: 68,684,272 km (0.074 R)
• M39: 76,168,354 km (0.039 R)
• M40: 77,110,970 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.5

Radius: 3.1

Gravity: 70.92 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 18.07 AU - 20.25 AU

Year: 30944 Days

Day: 17.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 101,610,564 km

• M1: 38,746 km (0.107 R)
• M2: 611,406 km (0.111 R)
• M3: 875,746 km (0.102 R)
• M4: 1,020,108 km (0.071 R)
• M5: 1,928,765 km (0.07 R)
• M6: 2,541,518 km (0.106 R)
• M7: 2,699,494 km (0.058 R)
• M8: 3,622,812 km (0.039 R)
• M9: 4,738,064 km (0.071 R)
• M10: 6,987,866 km (0.071 R)
• M11: 7,617,673 km (0.117 R)
• M12: 7,726,281 km (0.071 R)
• M13: 9,171,397 km (0.098 R)
• M14: 10,924,235 km (0.11 R)
• M15: 11,842,616 km (0.054 R)
• M16: 12,432,780 km (0.057 R)
• M17: 14,820,511 km (0.089 R)
• M18: 16,210,874 km (0.078 R)
• M19: 18,455,740 km (0.097 R)
• M20: 18,651,713 km (0.108 R)
• M21: 24,836,388 km (0.086 R)
• M22: 34,579,997 km (0.061 R)
• M23: 35,933,409 km (0.076 R)
• M24: 42,547,280 km (0.073 R)
• M25: 46,590,462 km (0.083 R)
• M26: 51,074,359 km (0.066 R)
• M27: 54,418,918 km (0.085 R)
• M28: 55,226,597 km (0.11 R)
• M29: 55,837,405 km (0.08 R)
• M30: 57,697,356 km (0.06 R)
• M31: 60,455,940 km (0.103 R)
• M32: 60,671,660 km (0.082 R)
• M33: 66,923,954 km (0.073 R)
• M34: 74,084,606 km (0.109 R)
• M35: 82,267,011 km (0.081 R)
• M36: 86,301,366 km (0.116 R)
• M37: 86,574,981 km (0.06 R)
• M38: 93,027,585 km (0.055 R)
• M39: 96,812,711 km (0.101 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 14,750 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit