🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 11.3

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.87 AU - 0.99 AU

Year: 598 Days

Day: 8.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,663,006 km

• M1: 140,472 km (0.056 R)
• M2: 699,220 km (0.077 R)
• M3: 1,228,947 km (0.062 R)
• M4: 1,676,543 km (0.071 R)
• M5: 2,170,964 km (0.039 R)
• M6: 3,290,256 km (0.094 R)
• M7: 3,978,107 km (0.074 R)
• M8: 4,536,855 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.9

Radius: 10.3

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.43 AU - 1.53 AU

Year: 1201 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,663,006 km

• M1: 128,804 km (0.094 R)
• M2: 532,120 km (0.086 R)
• M3: 947,403 km (0.117 R)
• M4: 1,302,549 km (0.094 R)
• M5: 2,328,640 km (0.1 R)
• M6: 2,652,071 km (0.103 R)
• M7: 3,484,284 km (0.101 R)
• M8: 3,910,189 km (0.115 R)
• M9: 5,088,123 km (0.115 R)
• M10: 6,133,812 km (0.081 R)
• M11: 7,007,912 km (0.109 R)
• M12: 7,935,269 km (0.099 R)
• M13: 8,385,559 km (0.039 R)
• M14: 9,337,450 km (0.079 R)
• M15: 11,070,242 km (0.09 R)
• M16: 11,849,049 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.3

Radius: 8.9

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.08 AU - 2.56 AU

Year: 2356 Days

Day: 11.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,663,006 km

• M1: 110,702 km (0.063 R)
• M2: 723,605 km (0.101 R)
• M3: 1,208,152 km (0.082 R)
• M4: 1,642,734 km (0.094 R)
• M5: 2,191,609 km (0.076 R)
• M6: 2,584,902 km (0.114 R)
• M7: 2,887,837 km (0.076 R)
• M8: 3,295,940 km (0.096 R)
• M9: 3,887,450 km (0.095 R)
• M10: 4,527,580 km (0.111 R)
• M11: 5,349,769 km (0.093 R)
• M12: 5,820,853 km (0.099 R)
• M13: 7,544,969 km (0.119 R)
• M14: 8,825,526 km (0.071 R)
• M15: 9,349,568 km (0.11 R)
• M16: 9,824,990 km (0.099 R)
• M17: 10,861,105 km (0.106 R)
• M18: 11,463,086 km (0.111 R)
• M19: 12,047,565 km (0.114 R)
• M20: 13,660,081 km (0.064 R)
• M21: 16,027,467 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931

Radius: 12.2

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.14 AU - 3.44 AU

Year: 3108 Days

Day: 14.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,663,006 km

• M1: 152,739 km (0.053 R)
• M2: 572,361 km (0.046 R)
• M3: 982,708 km (0.091 R)
• M4: 1,397,992 km (0.039 R)
• M5: 1,970,952 km (0.054 R)
• M6: 2,585,799 km (0.051 R)
• M7: 3,087,850 km (0.119 R)
• M8: 3,694,918 km (0.079 R)
• M9: 4,778,006 km (0.1 R)
• M10: 5,199,872 km (0.11 R)
• M11: 5,837,907 km (0.09 R)
• M12: 6,647,681 km (0.096 R)
• M13: 7,763,531 km (0.117 R)
• M14: 11,333,235 km (0.076 R)
• M15: 15,928,583 km (0.06 R)
• M16: 18,035,968 km (0.046 R)
• M17: 21,502,749 km (0.082 R)
• M18: 22,658,542 km (0.058 R)
• M19: 23,286,853 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.3

Radius: 12.9

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.67 AU - 3.81 AU

Year: 3889 Days

Day: 13.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,663,006 km

• M1: 160,369 km (0.071 R)
• M2: 576,849 km (0.11 R)
• M3: 1,277,566 km (0.032 R)
• M4: 1,978,731 km (0.054 R)
• M5: 2,820,069 km (0.093 R)
• M6: 3,654,676 km (0.102 R)
• M7: 4,407,303 km (0.107 R)
• M8: 4,846,373 km (0.03 R)
• M9: 5,341,542 km (0.046 R)
• M10: 5,756,227 km (0.062 R)
• M11: 6,192,454 km (0.085 R)
• M12: 6,840,363 km (0.045 R)
• M13: 7,297,085 km (0.096 R)
• M14: 8,455,122 km (0.062 R)
• M15: 9,651,307 km (0.062 R)
• M16: 11,045,409 km (0.101 R)
• M17: 12,521,491 km (0.054 R)
• M18: 13,610,115 km (0.095 R)
• M19: 14,282,558 km (0.064 R)
• M20: 17,017,805 km (0.08 R)
• M21: 17,859,592 km (0.103 R)
• M22: 18,855,316 km (0.107 R)
• M23: 19,431,417 km (0.114 R)
• M24: 20,889,547 km (0.114 R)
• M25: 21,645,316 km (0.104 R)
• M26: 25,390,050 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.9

Radius: 13.1

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.07 AU - 5.63 AU

Year: 7123 Days

Day: 11 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,663,006 km

• M1: 162,912 km (0.115 R)
• M2: 689,945 km (0.085 R)
• M3: 1,228,797 km (0.118 R)
• M4: 1,685,370 km (0.103 R)
• M5: 2,563,509 km (0.119 R)
• M6: 3,325,411 km (0.079 R)
• M7: 4,067,716 km (0.088 R)
• M8: 6,284,457 km (0.1 R)
• M9: 6,937,452 km (0.118 R)
• M10: 7,890,390 km (0.086 R)
• M11: 9,418,832 km (0.071 R)
• M12: 10,722,727 km (0.083 R)
• M13: 12,193,124 km (0.096 R)
• M14: 12,797,051 km (0.082 R)
• M15: 13,263,048 km (0.054 R)
• M16: 14,229,001 km (0.119 R)
• M17: 15,883,404 km (0.097 R)
• M18: 17,283,940 km (0.112 R)
• M19: 17,982,262 km (0.075 R)
• M20: 19,639,358 km (0.117 R)
• M21: 20,051,799 km (0.097 R)
• M22: 23,255,587 km (0.117 R)
• M23: 24,659,563 km (0.119 R)
• M24: 27,123,889 km (0.108 R)
• M25: 30,843,790 km (0.045 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.5

Radius: 5.5

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.76 AU - 6.28 AU

Year: 9850 Days

Day: 18.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,663,006 km

• M1: 78,539 km (0.106 R)
• M2: 933,192 km (0.062 R)
• M3: 1,230,891 km (0.119 R)
• M4: 2,458,491 km (0.093 R)
• M5: 2,962,636 km (0.085 R)
• M6: 3,700,752 km (0.057 R)
• M7: 4,753,472 km (0.109 R)
• M8: 6,285,205 km (0.068 R)
• M9: 9,439,626 km (0.044 R)
• M10: 9,763,505 km (0.088 R)
• M11: 10,433,703 km (0.068 R)
• M12: 14,533,583 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.3

Radius: 7.2

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.33 AU - 9.49 AU

Year: 16264 Days

Day: 21.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,663,006 km

• M1: 89,609 km (0.102 R)
• M2: 350,508 km (0.036 R)
• M3: 705,055 km (0.033 R)
• M4: 992,283 km (0.102 R)
• M5: 1,414,298 km (0.119 R)
• M6: 1,643,033 km (0.06 R)
• M7: 2,357,962 km (0.109 R)
• M8: 2,891,428 km (0.075 R)
• M9: 3,475,607 km (0.071 R)
• M10: 3,838,981 km (0.066 R)
• M11: 5,048,629 km (0.098 R)
• M12: 5,589,874 km (0.12 R)
• M13: 6,289,543 km (0.084 R)
• M14: 7,046,359 km (0.07 R)
• M15: 13,642,877 km (0.1 R)
• M16: 15,344,104 km (0.094 R)
• M17: 18,485,659 km (0.106 R)
• M18: 21,565,431 km (0.101 R)
• M19: 26,216,578 km (0.104 R)
• M20: 27,612,027 km (0.098 R)
• M21: 43,497,675 km (0.074 R)
• M22: 43,943,178 km (0.064 R)
• M23: 46,216,317 km (0.099 R)
• M24: 46,680,071 km (0.064 R)
• M25: 46,991,085 km (0.105 R)
• M26: 48,090,180 km (0.118 R)
• M27: 49,851,994 km (0.119 R)
• M28: 51,989,150 km (0.079 R)
• M29: 52,658,750 km (0.088 R)
• M30: 54,530,069 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.8

Radius: 4.1

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.9 AU - 11.82 AU

Year: 23866 Days

Day: 22.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 42,663,006 km

• M1: 51,013 km (0.08 R)
• M2: 245,939 km (0.119 R)
• M3: 871,258 km (0.113 R)
• M4: 1,027,139 km (0.1 R)
• M5: 1,201,570 km (0.119 R)
• M6: 1,332,767 km (0.058 R)
• M7: 2,055,774 km (0.113 R)
• M8: 2,559,320 km (0.117 R)
• M9: 3,074,685 km (0.025 R)
• M10: 3,207,977 km (0.094 R)
• M11: 5,156,938 km (0.114 R)
• M12: 5,506,398 km (0.116 R)
• M13: 13,747,296 km (0.052 R)
• M14: 18,979,033 km (0.118 R)
• M15: 21,542,692 km (0.075 R)
• M16: 22,446,113 km (0.116 R)
• M17: 23,891,378 km (0.115 R)
• M18: 24,858,977 km (0.068 R)
• M19: 25,669,798 km (0.096 R)
• M20: 26,035,864 km (0.089 R)
• M21: 32,162,196 km (0.107 R)
• M22: 36,355,275 km (0.108 R)
• M23: 37,869,355 km (0.05 R)
• M24: 39,667,970 km (0.045 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 18,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit