🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.5

Radius: 12.3

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.41 AU - 0.61 AU

Year: 251 Days

Day: 13.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,576,277 km

• M1: 153,039 km (0.086 R)
• M2: 537,804 km (0.11 R)
• M3: 1,160,580 km (0.054 R)
• M4: 1,983,069 km (0.056 R)
• M5: 2,635,017 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569

Radius: 8.5

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.56 AU - 0.68 AU

Year: 337 Days

Day: 10.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,576,277 km

• M1: 106,065 km (0.104 R)
• M2: 388,954 km (0.113 R)
• M3: 697,575 km (0.109 R)
• M4: 1,039,855 km (0.09 R)
• M5: 1,344,436 km (0.065 R)
• M6: 1,729,651 km (0.119 R)
• M7: 1,998,179 km (0.108 R)
• M8: 2,538,676 km (0.12 R)
• M9: 2,917,757 km (0.079 R)
• M10: 3,614,285 km (0.081 R)
• M11: 3,958,958 km (0.11 R)
• M12: 4,443,805 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 14.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.7 AU - 0.8 AU

Year: 448 Days

Day: 12.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,576,277 km

• M1: 181,163 km (0.112 R)
• M2: 754,572 km (0.091 R)
• M3: 1,478,027 km (0.119 R)
• M4: 2,331,632 km (0.057 R)
• M5: 3,178,057 km (0.057 R)
• M6: 3,668,140 km (0.117 R)
• M7: 4,788,628 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.2

Radius: 8.1

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.01 AU - 1.29 AU

Year: 851 Days

Day: 14.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,576,277 km

• M1: 100,679 km (0.112 R)
• M2: 449,093 km (0.071 R)
• M3: 916,736 km (0.109 R)
• M4: 1,302,100 km (0.066 R)
• M5: 1,908,420 km (0.089 R)
• M6: 2,372,921 km (0.09 R)
• M7: 2,658,653 km (0.062 R)
• M8: 3,107,148 km (0.117 R)
• M9: 3,553,099 km (0.087 R)
• M10: 3,805,321 km (0.119 R)
• M11: 4,112,296 km (0.104 R)
• M12: 5,388,366 km (0.089 R)
• M13: 5,668,712 km (0.075 R)
• M14: 6,393,364 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.4

Radius: 13

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.28 AU - 1.34 AU

Year: 1035 Days

Day: 10.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,576,277 km

• M1: 161,715 km (0.052 R)
• M2: 610,958 km (0.102 R)
• M3: 1,062,594 km (0.071 R)
• M4: 1,694,794 km (0.112 R)
• M5: 2,114,117 km (0.104 R)
• M6: 2,684,833 km (0.104 R)
• M7: 3,090,991 km (0.119 R)
• M8: 3,741,293 km (0.076 R)
• M9: 4,218,959 km (0.056 R)
• M10: 5,354,856 km (0.078 R)
• M11: 6,840,512 km (0.119 R)
• M12: 8,429,840 km (0.118 R)
• M13: 9,146,414 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567

Radius: 13.2

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.62 AU - 3.12 AU

Year: 3356 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,576,277 km

• M1: 164,408 km (0.091 R)
• M2: 788,231 km (0.118 R)
• M3: 1,513,781 km (0.11 R)
• M4: 2,209,411 km (0.119 R)
• M5: 2,624,994 km (0.095 R)
• M6: 3,127,643 km (0.073 R)
• M7: 3,694,619 km (0.06 R)
• M8: 5,506,548 km (0.082 R)
• M9: 7,722,541 km (0.115 R)
• M10: 8,181,807 km (0.102 R)
• M11: 11,500,785 km (0.041 R)
• M12: 12,364,713 km (0.087 R)
• M13: 13,932,199 km (0.105 R)
• M14: 16,258,895 km (0.095 R)
• M15: 19,188,769 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 11.4

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.54 AU - 3.68 AU

Year: 3786 Days

Day: 12.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,576,277 km

• M1: 142,118 km (0.076 R)
• M2: 498,759 km (0.061 R)
• M3: 955,482 km (0.116 R)
• M4: 1,647,521 km (0.065 R)
• M5: 2,139,399 km (0.053 R)
• M6: 2,820,668 km (0.044 R)
• M7: 3,530,659 km (0.088 R)
• M8: 4,302,285 km (0.1 R)
• M9: 4,942,414 km (0.082 R)
• M10: 5,389,562 km (0.11 R)
• M11: 5,797,516 km (0.096 R)
• M12: 8,045,822 km (0.085 R)
• M13: 9,228,094 km (0.104 R)
• M14: 10,456,891 km (0.064 R)
• M15: 11,579,474 km (0.08 R)
• M16: 12,408,096 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.5

Radius: 7.4

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 6.66 AU - 8.54 AU

Year: 14462 Days

Day: 16.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,576,277 km

• M1: 118,182 km (0.072 R)
• M2: 799,900 km (0.053 R)
• M3: 1,087,876 km (0.108 R)
• M4: 2,075,072 km (0.092 R)
• M5: 2,648,182 km (0.108 R)
• M6: 3,093,385 km (0.098 R)
• M7: 3,369,542 km (0.035 R)
• M8: 3,918,866 km (0.079 R)
• M9: 4,643,368 km (0.095 R)
• M10: 5,997,827 km (0.085 R)
• M11: 6,919,051 km (0.101 R)
• M12: 9,751,537 km (0.113 R)
• M13: 10,810,840 km (0.098 R)
• M14: 11,889,141 km (0.04 R)
• M15: 14,070,129 km (0.03 R)
• M16: 14,895,909 km (0.109 R)
• M17: 19,749,013 km (0.101 R)
• M18: 21,853,407 km (0.114 R)
• M19: 24,733,914 km (0.031 R)
• M20: 29,565,775 km (0.096 R)
• M21: 31,129,522 km (0.117 R)
• M22: 32,202,138 km (0.113 R)
• M23: 34,534,519 km (0.103 R)
• M24: 39,284,401 km (0.095 R)
• M25: 40,409,975 km (0.079 R)
• M26: 45,811,206 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 616.6

Radius: 6.5

Gravity: 14.59 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 7.25 AU - 8.05 AU

Year: 14605 Days

Day: 17.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 59,576,277 km

• M1: 93,050 km (0.07 R)
• M2: 368,011 km (0.028 R)
• M3: 1,623,735 km (0.033 R)
• M4: 4,583,828 km (0.091 R)
• M5: 5,288,434 km (0.093 R)
• M6: 5,796,618 km (0.06 R)
• M7: 7,607,351 km (0.097 R)
• M8: 10,698,043 km (0.096 R)
• M9: 11,930,879 km (0.109 R)
• M10: 16,194,568 km (0.049 R)
• M11: 17,974,932 km (0.03 R)
• M12: 22,753,238 km (0.059 R)
• M13: 23,801,021 km (0.101 R)
• M14: 24,092,139 km (0.106 R)
• M15: 28,423,296 km (0.11 R)
• M16: 29,081,527 km (0.087 R)
• M17: 30,314,662 km (0.107 R)
• M18: 32,406,938 km (0.091 R)
• M19: 37,006,773 km (0.112 R)
• M20: 40,349,538 km (0.113 R)
• M21: 41,741,097 km (0.096 R)
• M22: 42,877,293 km (0.093 R)
• M23: 49,496,849 km (0.105 R)
• M24: 51,413,647 km (0.091 R)
• M25: 54,212,922 km (0.115 R)
• M26: 55,224,802 km (0.058 R)
• M27: 55,564,838 km (0.104 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: 525 - 12,955 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit