🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.54 AU - 0.62 AU

Year: 281 Days

Day: 19.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.3

Radius: 10.2

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.88 AU - 0.9 AU

Year: 534 Days

Day: 10 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,510,259 km

• M1: 127,009 km (0.03 R)
• M2: 455,974 km (0.111 R)
• M3: 783,743 km (0.107 R)
• M4: 1,221,915 km (0.119 R)
• M5: 1,606,980 km (0.099 R)
• M6: 2,082,253 km (0.108 R)
• M7: 2,617,514 km (0.032 R)
• M8: 2,953,212 km (0.067 R)
• M9: 3,617,426 km (0.072 R)
• M10: 3,978,256 km (0.102 R)
• M11: 4,502,148 km (0.053 R)
• M12: 5,312,370 km (0.034 R)
• M13: 5,633,407 km (0.06 R)
• M14: 6,158,645 km (0.105 R)
• M15: 6,777,980 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.3

Radius: 11.1

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.59 AU - 5.41 AU

Year: 6069 Days

Day: 5.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,510,259 km

• M1: 138,079 km (0.101 R)
• M2: 521,199 km (0.075 R)
• M3: 941,419 km (0.084 R)
• M4: 2,148,525 km (0.075 R)
• M5: 2,812,141 km (0.097 R)
• M6: 3,476,206 km (0.073 R)
• M7: 4,758,858 km (0.116 R)
• M8: 8,507,781 km (0.094 R)
• M9: 8,872,351 km (0.117 R)
• M10: 9,289,429 km (0.078 R)
• M11: 9,763,505 km (0.1 R)
• M12: 10,713,302 km (0.038 R)
• M13: 11,234,800 km (0.111 R)
• M14: 14,497,829 km (0.05 R)
• M15: 16,160,011 km (0.11 R)
• M16: 17,945,761 km (0.12 R)
• M17: 18,682,081 km (0.102 R)
• M18: 20,001,235 km (0.114 R)
• M19: 20,647,349 km (0.105 R)
• M20: 21,233,323 km (0.094 R)
• M21: 22,057,009 km (0.101 R)
• M22: 23,529,950 km (0.095 R)
• M23: 25,650,201 km (0.115 R)
• M24: 26,756,926 km (0.045 R)
• M25: 27,983,927 km (0.103 R)
• M26: 29,523,888 km (0.099 R)
• M27: 30,361,636 km (0.061 R)
• M28: 33,368,852 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.1

Radius: 11.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 3.75 AU - 5.97 AU

Year: 6812 Days

Day: 7.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,510,259 km

• M1: 183,257 km (0.092 R)
• M2: 684,560 km (0.083 R)
• M3: 1,254,677 km (0.074 R)
• M4: 4,159,718 km (0.098 R)
• M5: 5,668,563 km (0.058 R)
• M6: 6,085,342 km (0.111 R)
• M7: 7,085,554 km (0.11 R)
• M8: 9,474,482 km (0.094 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.4

Radius: 7.7

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 5.64 AU - 8.38 AU

Year: 11801 Days

Day: 23.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 62,510,259 km

• M1: 95,743 km (0.113 R)
• M2: 364,570 km (0.06 R)
• M3: 681,717 km (0.04 R)
• M4: 1,183,170 km (0.115 R)
• M5: 1,771,987 km (0.113 R)
• M6: 2,073,576 km (0.119 R)
• M7: 3,013,799 km (0.08 R)
• M8: 3,494,157 km (0.103 R)
• M9: 4,185,748 km (0.1 R)
• M10: 5,309,079 km (0.108 R)
• M11: 7,554,094 km (0.111 R)
• M12: 7,883,658 km (0.085 R)
• M13: 8,396,031 km (0.055 R)
• M14: 9,871,215 km (0.048 R)
• M15: 11,297,182 km (0.102 R)
• M16: 12,739,605 km (0.072 R)
• M17: 13,929,806 km (0.075 R)
• M18: 16,667,596 km (0.074 R)
• M19: 18,235,831 km (0.102 R)
• M20: 19,978,048 km (0.078 R)
• M21: 20,450,029 km (0.048 R)
• M22: 24,498,895 km (0.029 R)
• M23: 25,773,320 km (0.062 R)
• M24: 26,900,540 km (0.089 R)
• M25: 27,283,510 km (0.104 R)
• M26: 27,572,982 km (0.069 R)
• M27: 31,738,834 km (0.108 R)
• M28: 32,597,974 km (0.086 R)
• M29: 35,842,154 km (0.116 R)
• M30: 39,295,321 km (0.063 R)
• M31: 40,786,962 km (0.094 R)
• M32: 41,039,184 km (0.12 R)
• M33: 43,618,850 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788

Radius: 3.8

Gravity: 54.57 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.76 AU - 9.58 AU

Year: 16232 Days

Day: 22.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 62,510,259 km

• M1: 47,273 km (0.114 R)
• M2: 276,606 km (0.094 R)
• M3: 486,193 km (0.106 R)
• M4: 826,379 km (0.113 R)
• M5: 969,993 km (0.078 R)
• M6: 1,366,726 km (0.04 R)
• M7: 2,630,080 km (0.073 R)
• M8: 3,281,429 km (0.119 R)
• M9: 3,587,058 km (0.114 R)
• M10: 5,368,619 km (0.026 R)
• M11: 8,353,396 km (0.088 R)
• M12: 8,816,700 km (0.062 R)
• M13: 10,193,150 km (0.067 R)
• M14: 10,841,806 km (0.11 R)
• M15: 10,962,682 km (0.103 R)
• M16: 13,854,109 km (0.082 R)
• M17: 14,649,072 km (0.102 R)
• M18: 15,627,293 km (0.094 R)
• M19: 19,084,200 km (0.091 R)
• M20: 19,886,045 km (0.096 R)
• M21: 20,158,163 km (0.112 R)
• M22: 20,432,825 km (0.066 R)
• M23: 21,843,683 km (0.12 R)
• M24: 27,910,176 km (0.094 R)
• M25: 29,174,726 km (0.106 R)
• M26: 34,484,852 km (0.069 R)
• M27: 38,971,442 km (0.093 R)
• M28: 41,133,431 km (0.074 R)
• M29: 41,427,540 km (0.099 R)
• M30: 42,020,097 km (0.104 R)
• M31: 47,771,537 km (0.107 R)
• M32: 48,259,675 km (0.096 R)
• M33: 51,598,849 km (0.084 R)
• M34: 53,674,519 km (0.105 R)
• M35: 54,555,501 km (0.069 R)
• M36: 56,346,487 km (0.073 R)
• M37: 59,105,820 km (0.046 R)
• M38: 62,728,332 km (0.053 R)
• M39: 63,705,655 km (0.098 R)
• M40: 68,951,903 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.3

Radius: 5.6

Gravity: 12.73 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.04 AU - 10.56 AU

Year: 19506 Days

Day: 20.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 62,510,259 km

• M1: 89,310 km (0.091 R)
• M2: 272,119 km (0.1 R)
• M3: 547,079 km (0.109 R)
• M4: 725,550 km (0.083 R)
• M5: 1,080,845 km (0.049 R)
• M6: 2,272,990 km (0.047 R)
• M7: 2,723,878 km (0.077 R)
• M8: 3,283,972 km (0.12 R)
• M9: 5,280,506 km (0.09 R)
• M10: 6,388,278 km (0.114 R)
• M11: 7,506,073 km (0.052 R)
• M12: 8,063,475 km (0.032 R)
• M13: 9,418,383 km (0.108 R)
• M14: 9,738,821 km (0.086 R)
• M15: 10,918,101 km (0.061 R)
• M16: 12,127,002 km (0.063 R)
• M17: 12,442,653 km (0.049 R)
• M18: 12,958,916 km (0.041 R)
• M19: 14,523,111 km (0.071 R)
• M20: 19,530,301 km (0.101 R)
• M21: 19,963,985 km (0.106 R)
• M22: 20,315,540 km (0.109 R)
• M23: 21,486,742 km (0.12 R)
• M24: 21,949,000 km (0.059 R)
• M25: 24,260,436 km (0.095 R)
• M26: 27,479,633 km (0.095 R)
• M27: 30,972,294 km (0.102 R)
• M28: 32,885,801 km (0.12 R)
• M29: 33,623,169 km (0.025 R)
• M30: 39,233,837 km (0.104 R)
• M31: 43,940,186 km (0.091 R)
• M32: 44,684,585 km (0.061 R)
• M33: 45,893,036 km (0.104 R)
• M34: 46,198,515 km (0.039 R)
• M35: 47,278,313 km (0.044 R)
• M36: 52,263,512 km (0.101 R)
• M37: 54,113,439 km (0.076 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: 542 - 14,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit