🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.1

Radius: 12.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.58 AU - 0.62 AU

Year: 321 Days

Day: 8.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 76,578,545 km

• M1: 153,039 km (0.067 R)
• M2: 583,132 km (0.065 R)
• M3: 1,126,622 km (0.075 R)
• M4: 1,517,970 km (0.109 R)
• M5: 1,941,182 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.7

Radius: 8.5

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.75 AU - 1.21 AU

Year: 670 Days

Day: 14.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,578,545 km

• M1: 105,766 km (0.027 R)
• M2: 433,684 km (0.032 R)
• M3: 891,304 km (0.074 R)
• M4: 1,263,504 km (0.04 R)
• M5: 1,673,551 km (0.094 R)
• M6: 2,511,748 km (0.076 R)
• M7: 2,785,213 km (0.048 R)
• M8: 3,393,179 km (0.101 R)
• M9: 4,205,795 km (0.096 R)
• M10: 4,482,850 km (0.105 R)
• M11: 4,837,995 km (0.078 R)
• M12: 5,495,777 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.2

Radius: 8.9

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.38 AU - 1.42 AU

Year: 1143 Days

Day: 9.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,578,545 km

• M1: 142,716 km (0.062 R)
• M2: 715,676 km (0.061 R)
• M3: 1,027,139 km (0.071 R)
• M4: 1,443,919 km (0.101 R)
• M5: 2,143,737 km (0.041 R)
• M6: 2,974,604 km (0.114 R)
• M7: 4,229,132 km (0.099 R)
• M8: 5,858,253 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.6

Radius: 12.1

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.26 AU - 2.7 AU

Year: 2696 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,578,545 km

• M1: 151,094 km (0.113 R)
• M2: 530,324 km (0.103 R)
• M3: 1,218,923 km (0.088 R)
• M4: 1,786,498 km (0.104 R)
• M5: 2,662,543 km (0.087 R)
• M6: 3,242,683 km (0.093 R)
• M7: 3,668,888 km (0.107 R)
• M8: 4,522,493 km (0.088 R)
• M9: 6,252,593 km (0.117 R)
• M10: 8,051,657 km (0.084 R)
• M11: 8,838,841 km (0.12 R)
• M12: 11,011,600 km (0.027 R)
• M13: 11,808,957 km (0.025 R)
• M14: 12,780,146 km (0.072 R)
• M15: 13,803,695 km (0.112 R)
• M16: 14,335,515 km (0.116 R)
• M17: 15,751,309 km (0.102 R)
• M18: 16,709,484 km (0.06 R)
• M19: 17,092,454 km (0.117 R)
• M20: 18,161,630 km (0.028 R)
• M21: 19,036,628 km (0.087 R)
• M22: 19,696,205 km (0.083 R)
• M23: 20,247,025 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.3

Radius: 13.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.11 AU - 5.69 AU

Year: 8662 Days

Day: 11 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,578,545 km

• M1: 166,802 km (0.091 R)
• M2: 637,137 km (0.102 R)
• M3: 1,073,365 km (0.116 R)
• M4: 1,968,110 km (0.06 R)
• M5: 3,034,294 km (0.049 R)
• M6: 4,266,232 km (0.045 R)
• M7: 4,820,791 km (0.097 R)
• M8: 5,907,620 km (0.094 R)
• M9: 7,856,132 km (0.096 R)
• M10: 14,763,215 km (0.042 R)
• M11: 16,168,687 km (0.115 R)
• M12: 18,513,634 km (0.079 R)
• M13: 19,692,166 km (0.099 R)
• M14: 21,553,014 km (0.077 R)
• M15: 24,735,260 km (0.103 R)
• M16: 25,175,975 km (0.117 R)
• M17: 25,802,042 km (0.062 R)
• M18: 26,438,282 km (0.09 R)
• M19: 38,804,042 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94

Radius: 3.4

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.25 AU - 7.09 AU

Year: 9319 Days

Day: 24.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,578,545 km

• M1: 49,666 km (0.083 R)
• M2: 191,336 km (0.054 R)
• M3: 604,824 km (0.078 R)
• M4: 2,761,876 km (0.109 R)
• M5: 3,353,087 km (0.115 R)
• M6: 3,527,967 km (0.12 R)
• M7: 4,472,079 km (0.074 R)
• M8: 6,449,164 km (0.044 R)
• M9: 9,583,838 km (0.055 R)
• M10: 14,759,326 km (0.111 R)
• M11: 18,738,629 km (0.106 R)
• M12: 23,237,187 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.4

Radius: 5.5

Gravity: 23.09 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.47 AU - 7.41 AU

Year: 11281 Days

Day: 15.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,578,545 km

• M1: 68,665 km (0.091 R)
• M2: 259,104 km (0.111 R)
• M3: 443,707 km (0.101 R)
• M4: 826,827 km (0.062 R)
• M5: 1,029,084 km (0.111 R)
• M6: 1,395,150 km (0.049 R)
• M7: 2,031,240 km (0.05 R)
• M8: 2,404,337 km (0.087 R)
• M9: 2,910,726 km (0.115 R)
• M10: 3,908,992 km (0.073 R)
• M11: 4,515,911 km (0.096 R)
• M12: 4,921,920 km (0.078 R)
• M13: 5,117,294 km (0.074 R)
• M14: 6,024,905 km (0.12 R)
• M15: 6,248,703 km (0.1 R)
• M16: 7,753,807 km (0.116 R)
• M17: 8,473,822 km (0.06 R)
• M18: 13,819,552 km (0.075 R)
• M19: 15,353,529 km (0.026 R)
• M20: 16,197,261 km (0.083 R)
• M21: 19,474,950 km (0.116 R)
• M22: 21,744,350 km (0.045 R)
• M23: 24,560,530 km (0.066 R)
• M24: 25,908,406 km (0.041 R)
• M25: 30,030,127 km (0.052 R)
• M26: 32,019,479 km (0.092 R)
• M27: 33,626,310 km (0.115 R)
• M28: 33,977,566 km (0.119 R)
• M29: 34,568,178 km (0.109 R)
• M30: 35,286,099 km (0.098 R)
• M31: 35,648,724 km (0.098 R)
• M32: 36,627,991 km (0.098 R)
• M33: 44,410,073 km (0.043 R)
• M34: 45,543,426 km (0.067 R)
• M35: 46,695,779 km (0.102 R)
• M36: 50,422,411 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.2

Radius: 5.4

Gravity: 17.98 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 9.64 AU - 11.12 AU

Year: 23084 Days

Day: 21.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,578,545 km

• M1: 67,319 km (0.088 R)
• M2: 652,097 km (0.115 R)
• M3: 1,072,766 km (0.099 R)
• M4: 1,573,171 km (0.101 R)
• M5: 2,031,389 km (0.065 R)
• M6: 2,645,489 km (0.083 R)
• M7: 3,375,826 km (0.033 R)
• M8: 5,037,708 km (0.112 R)
• M9: 8,112,693 km (0.096 R)
• M10: 8,318,988 km (0.033 R)
• M11: 10,336,315 km (0.094 R)
• M12: 11,981,593 km (0.104 R)
• M13: 13,147,110 km (0.089 R)
• M14: 19,936,759 km (0.046 R)
• M15: 24,767,274 km (0.077 R)
• M16: 25,201,856 km (0.069 R)
• M17: 30,323,339 km (0.067 R)
• M18: 30,571,372 km (0.104 R)
• M19: 34,997,075 km (0.1 R)
• M20: 38,947,955 km (0.072 R)
• M21: 39,535,576 km (0.109 R)
• M22: 41,486,033 km (0.085 R)
• M23: 49,758,346 km (0.083 R)
• M24: 57,155,512 km (0.103 R)
• M25: 58,487,532 km (0.11 R)
• M26: 63,211,533 km (0.103 R)
• M27: 66,498,198 km (0.081 R)
• M28: 69,465,921 km (0.069 R)
• M29: 70,329,849 km (0.108 R)
• M30: 73,409,919 km (0.101 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 12,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit