🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.45 AU - 0.57 AU

Year: 232 Days

Day: 34.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 42.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.1

Radius: 14.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.69 AU - 0.85 AU

Year: 430 Days

Day: 7.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,748,005 km

• M1: 182,958 km (0.082 R)
• M2: 700,567 km (0.101 R)
• M3: 1,160,879 km (0.097 R)
• M4: 1,701,077 km (0.066 R)
• M5: 2,264,463 km (0.036 R)
• M6: 3,945,793 km (0.114 R)
• M7: 4,631,101 km (0.077 R)
• M8: 5,152,300 km (0.111 R)
• M9: 5,850,623 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.4

Radius: 9.6

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.71 AU - 0.89 AU

Year: 455 Days

Day: 10.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,748,005 km

• M1: 119,379 km (0.07 R)
• M2: 434,582 km (0.116 R)
• M3: 1,094,009 km (0.113 R)
• M4: 1,441,525 km (0.043 R)
• M5: 1,754,334 km (0.11 R)
• M6: 2,291,839 km (0.083 R)
• M7: 2,785,363 km (0.079 R)
• M8: 3,171,924 km (0.07 R)
• M9: 3,519,290 km (0.076 R)
• M10: 4,376,785 km (0.051 R)
• M11: 5,236,225 km (0.065 R)
• M12: 5,951,602 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.8

Radius: 12.9

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.73 AU - 1.17 AU

Year: 589 Days

Day: 10.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,748,005 km

• M1: 160,369 km (0.111 R)
• M2: 723,156 km (0.03 R)
• M3: 1,328,130 km (0.108 R)
• M4: 2,098,709 km (0.059 R)
• M5: 2,527,606 km (0.101 R)
• M6: 3,077,079 km (0.069 R)
• M7: 3,624,158 km (0.063 R)
• M8: 4,082,675 km (0.106 R)
• M9: 4,485,393 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.7

Radius: 14.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.7 AU - 2.46 AU

Year: 1907 Days

Day: 5.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,748,005 km

• M1: 184,454 km (0.073 R)
• M2: 794,664 km (0.034 R)
• M3: 1,344,137 km (0.06 R)
• M4: 1,828,984 km (0.113 R)
• M5: 3,918,567 km (0.087 R)
• M6: 6,071,878 km (0.102 R)
• M7: 8,002,439 km (0.081 R)
• M8: 9,091,960 km (0.113 R)
• M9: 9,812,872 km (0.116 R)
• M10: 11,963,641 km (0.086 R)
• M11: 13,387,513 km (0.104 R)
• M12: 15,109,684 km (0.098 R)
• M13: 16,221,346 km (0.092 R)
• M14: 17,231,730 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.3

Radius: 13.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.97 AU - 2.61 AU

Year: 2203 Days

Day: 10 Hours

Environment

Temp: -185 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,748,005 km

• M1: 165,455 km (0.086 R)
• M2: 626,067 km (0.11 R)
• M3: 1,158,785 km (0.11 R)
• M4: 2,302,162 km (0.102 R)
• M5: 3,067,654 km (0.108 R)
• M6: 3,495,803 km (0.05 R)
• M7: 4,079,534 km (0.106 R)
• M8: 4,857,892 km (0.088 R)
• M9: 5,343,038 km (0.119 R)
• M10: 5,903,282 km (0.072 R)
• M11: 6,433,905 km (0.051 R)
• M12: 6,876,565 km (0.119 R)
• M13: 10,892,819 km (0.112 R)

Asteroid Belt

Center: 2.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.5

Radius: 10.1

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.69 AU - 3.15 AU

Year: 3173 Days

Day: 10.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 111.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,748,005 km

• M1: 125,662 km (0.102 R)
• M2: 524,041 km (0.108 R)
• M3: 843,283 km (0.092 R)
• M4: 1,713,793 km (0.068 R)
• M5: 2,029,744 km (0.107 R)
• M6: 2,502,623 km (0.066 R)
• M7: 3,404,848 km (0.054 R)
• M8: 3,789,464 km (0.094 R)
• M9: 4,224,494 km (0.111 R)
• M10: 5,654,500 km (0.052 R)
• M11: 5,975,388 km (0.059 R)
• M12: 7,258,189 km (0.08 R)
• M13: 7,931,530 km (0.115 R)
• M14: 8,506,584 km (0.117 R)
• M15: 9,255,022 km (0.065 R)
• M16: 10,046,843 km (0.114 R)
• M17: 10,599,308 km (0.078 R)
• M18: 12,379,224 km (0.095 R)
• M19: 13,107,017 km (0.1 R)
• M20: 13,576,156 km (0.036 R)
• M21: 14,105,134 km (0.108 R)
• M22: 14,899,050 km (0.098 R)
• M23: 15,932,921 km (0.085 R)
• M24: 17,014,065 km (0.086 R)
• M25: 18,844,545 km (0.104 R)
• M26: 19,201,784 km (0.069 R)
• M27: 19,991,511 km (0.088 R)
• M28: 21,570,816 km (0.053 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.6

Radius: 14

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.9 AU - 3.52 AU

Year: 3657 Days

Day: 9.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,748,005 km

• M1: 180,565 km (0.111 R)
• M2: 752,926 km (0.112 R)
• M3: 1,346,231 km (0.109 R)
• M4: 1,882,689 km (0.028 R)
• M5: 2,752,451 km (0.118 R)
• M6: 3,246,573 km (0.106 R)
• M7: 6,676,403 km (0.106 R)
• M8: 9,445,460 km (0.049 R)
• M9: 10,812,037 km (0.061 R)
• M10: 11,282,372 km (0.086 R)
• M11: 12,690,088 km (0.049 R)
• M12: 14,351,821 km (0.028 R)
• M13: 16,256,053 km (0.079 R)
• M14: 16,822,430 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.9

Radius: 3.4

Gravity: 76.55 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.88 AU - 8.18 AU

Year: 11851 Days

Day: 19 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 60,748,005 km

• M1: 43,982 km (0.119 R)
• M2: 162,014 km (0.036 R)
• M3: 334,351 km (0.111 R)
• M4: 762,351 km (0.069 R)
• M5: 944,262 km (0.088 R)
• M6: 1,205,011 km (0.08 R)
• M7: 1,467,106 km (0.059 R)
• M8: 1,667,418 km (0.088 R)
• M9: 2,010,895 km (0.107 R)
• M10: 4,187,693 km (0.087 R)
• M11: 5,691,750 km (0.056 R)
• M12: 7,521,482 km (0.113 R)
• M13: 7,791,805 km (0.107 R)
• M14: 9,709,051 km (0.118 R)
• M15: 10,412,161 km (0.107 R)
• M16: 11,738,197 km (0.093 R)
• M17: 17,613,055 km (0.069 R)
• M18: 18,009,340 km (0.071 R)
• M19: 19,401,348 km (0.071 R)
• M20: 22,029,782 km (0.084 R)
• M21: 23,908,133 km (0.119 R)
• M22: 24,590,000 km (0.092 R)
• M23: 26,609,422 km (0.12 R)
• M24: 27,979,589 km (0.086 R)
• M25: 28,627,647 km (0.054 R)
• M26: 29,396,131 km (0.117 R)
• M27: 30,745,654 km (0.038 R)
• M28: 32,846,307 km (0.12 R)
• M29: 33,446,344 km (0.093 R)
• M30: 37,460,803 km (0.05 R)
• M31: 39,448,360 km (0.073 R)
• M32: 41,088,252 km (0.114 R)
• M33: 43,632,313 km (0.108 R)
• M34: 46,129,551 km (0.065 R)
• M35: 46,579,840 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.4

Radius: 4.4

Gravity: 45.42 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 6.3 AU - 8.34 AU

Year: 12592 Days

Day: 15.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,748,005 km

• M1: 56,099 km (0.046 R)
• M2: 247,584 km (0.115 R)
• M3: 397,033 km (0.103 R)
• M4: 540,198 km (0.108 R)
• M5: 755,320 km (0.05 R)
• M6: 980,464 km (0.118 R)
• M7: 1,415,794 km (0.102 R)
• M8: 3,079,472 km (0.089 R)
• M9: 3,280,981 km (0.088 R)
• M10: 3,823,722 km (0.066 R)
• M11: 4,086,565 km (0.072 R)
• M12: 4,237,808 km (0.111 R)
• M13: 5,771,785 km (0.093 R)
• M14: 9,933,897 km (0.087 R)
• M15: 10,263,162 km (0.095 R)
• M16: 10,430,412 km (0.059 R)
• M17: 12,583,275 km (0.091 R)
• M18: 14,103,788 km (0.088 R)
• M19: 14,519,670 km (0.074 R)
• M20: 21,321,736 km (0.11 R)
• M21: 22,708,358 km (0.072 R)
• M22: 25,762,249 km (0.065 R)
• M23: 27,226,962 km (0.104 R)
• M24: 27,440,588 km (0.091 R)
• M25: 34,011,226 km (0.092 R)
• M26: 36,285,412 km (0.041 R)
• M27: 37,065,565 km (0.034 R)
• M28: 39,472,745 km (0.04 R)
• M29: 45,791,459 km (0.083 R)
• M30: 49,506,423 km (0.093 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 18,622 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit