🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.05 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.08 AU - 2.12 AU

Year: 1070 Days

Day: 35.1 Hours

Environment

Temp: -53 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.03 AU - 2.29 AU

Year: 1116 Days

Day: 46.2 Hours

Environment

Temp: -56 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.71 AU - 3.21 AU

Year: 1790 Days

Day: 29.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609

Radius: 13.7

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.63 AU - 5.69 AU

Year: 4733 Days

Day: 10.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,696,438 km

• M1: 170,392 km (0.056 R)
• M2: 768,035 km (0.065 R)
• M3: 2,130,124 km (0.112 R)
• M4: 2,985,674 km (0.084 R)
• M5: 4,430,491 km (0.114 R)
• M6: 5,161,426 km (0.109 R)
• M7: 6,962,435 km (0.063 R)
• M8: 7,916,719 km (0.082 R)
• M9: 9,073,260 km (0.069 R)
• M10: 9,877,199 km (0.068 R)
• M11: 10,772,094 km (0.09 R)
• M12: 12,479,454 km (0.096 R)
• M13: 12,970,435 km (0.108 R)
• M14: 13,474,280 km (0.053 R)
• M15: 15,286,060 km (0.078 R)
• M16: 19,716,700 km (0.093 R)
• M17: 25,092,799 km (0.104 R)
• M18: 26,035,116 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242

Radius: 10.3

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6.59 AU - 10.61 AU

Year: 8864 Days

Day: 8.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,696,438 km

• M1: 128,355 km (0.094 R)
• M2: 482,752 km (0.098 R)
• M3: 1,129,464 km (0.05 R)
• M4: 1,497,774 km (0.06 R)
• M5: 1,947,016 km (0.064 R)
• M6: 2,353,773 km (0.08 R)
• M7: 4,067,417 km (0.12 R)
• M8: 4,506,486 km (0.087 R)
• M9: 5,685,018 km (0.091 R)
• M10: 6,266,804 km (0.082 R)
• M11: 9,162,122 km (0.075 R)
• M12: 9,747,498 km (0.066 R)
• M13: 10,854,672 km (0.083 R)
• M14: 11,226,123 km (0.077 R)
• M15: 12,142,560 km (0.081 R)
• M16: 13,108,065 km (0.079 R)
• M17: 13,582,888 km (0.118 R)
• M18: 16,799,691 km (0.04 R)
• M19: 17,933,194 km (0.069 R)
• M20: 19,591,038 km (0.102 R)
• M21: 20,142,456 km (0.099 R)
• M22: 20,704,196 km (0.114 R)
• M23: 27,335,271 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.1

Radius: 8

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 9.76 AU - 11.5 AU

Year: 12181 Days

Day: 10.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 114.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,696,438 km

• M1: 99,632 km (0.076 R)
• M2: 448,345 km (0.034 R)
• M3: 830,867 km (0.065 R)
• M4: 1,097,749 km (0.076 R)
• M5: 1,645,427 km (0.073 R)
• M6: 2,890,530 km (0.065 R)
• M7: 3,347,252 km (0.043 R)
• M8: 4,066,669 km (0.106 R)
• M9: 6,349,532 km (0.114 R)
• M10: 7,656,718 km (0.09 R)
• M11: 10,793,038 km (0.06 R)
• M12: 11,947,634 km (0.078 R)
• M13: 16,111,541 km (0.113 R)
• M14: 17,249,682 km (0.049 R)
• M15: 22,777,024 km (0.072 R)
• M16: 25,040,290 km (0.076 R)
• M17: 32,056,729 km (0.117 R)
• M18: 36,550,051 km (0.113 R)
• M19: 38,012,669 km (0.088 R)
• M20: 39,261,064 km (0.119 R)
• M21: 45,218,649 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 677.1

Radius: 6.7

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 12.04 AU - 14.96 AU

Year: 17433 Days

Day: 21.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,696,438 km

• M1: 83,326 km (0.086 R)
• M2: 345,571 km (0.059 R)
• M3: 595,549 km (0.097 R)
• M4: 818,899 km (0.092 R)
• M5: 1,136,944 km (0.064 R)
• M6: 1,632,412 km (0.111 R)
• M7: 2,082,103 km (0.081 R)
• M8: 2,325,798 km (0.102 R)
• M9: 2,920,001 km (0.075 R)
• M10: 4,308,419 km (0.107 R)
• M11: 4,844,428 km (0.118 R)
• M12: 5,575,662 km (0.075 R)
• M13: 7,486,775 km (0.049 R)
• M14: 8,615,042 km (0.12 R)
• M15: 10,136,602 km (0.116 R)
• M16: 12,085,264 km (0.084 R)
• M17: 12,943,806 km (0.11 R)
• M18: 14,198,783 km (0.05 R)
• M19: 15,532,897 km (0.104 R)
• M20: 16,948,541 km (0.025 R)
• M21: 17,521,501 km (0.087 R)
• M22: 19,584,605 km (0.119 R)
• M23: 20,582,124 km (0.12 R)
• M24: 21,708,446 km (0.065 R)
• M25: 27,177,894 km (0.068 R)
• M26: 29,813,060 km (0.068 R)
• M27: 39,013,778 km (0.096 R)
• M28: 40,444,981 km (0.029 R)
• M29: 42,957,627 km (0.088 R)
• M30: 44,329,140 km (0.094 R)
• M31: 53,350,341 km (0.053 R)
• M32: 62,935,675 km (0.051 R)
• M33: 64,505,255 km (0.082 R)
• M34: 67,518,306 km (0.12 R)
• M35: 68,955,942 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.4

Radius: 4.1

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 11.94 AU - 18.94 AU

Year: 21323 Days

Day: 22.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,696,438 km

• M1: 58,942 km (0.116 R)
• M2: 346,618 km (0.111 R)
• M3: 540,048 km (0.118 R)
• M4: 699,669 km (0.078 R)
• M5: 829,071 km (0.094 R)
• M6: 984,354 km (0.08 R)
• M7: 1,191,846 km (0.078 R)
• M8: 1,390,662 km (0.085 R)
• M9: 1,885,232 km (0.056 R)
• M10: 2,433,957 km (0.049 R)
• M11: 3,146,791 km (0.119 R)
• M12: 4,855,348 km (0.095 R)
• M13: 6,589,936 km (0.101 R)
• M14: 6,914,563 km (0.047 R)
• M15: 7,136,716 km (0.105 R)
• M16: 8,486,837 km (0.106 R)
• M17: 8,957,771 km (0.071 R)
• M18: 10,966,571 km (0.097 R)
• M19: 15,216,946 km (0.064 R)
• M20: 17,294,112 km (0.102 R)
• M21: 18,189,456 km (0.075 R)
• M22: 21,370,654 km (0.059 R)
• M23: 24,388,642 km (0.114 R)
• M24: 25,337,990 km (0.078 R)
• M25: 25,513,169 km (0.102 R)
• M26: 28,901,860 km (0.075 R)
• M27: 29,671,990 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.6

Radius: 7.3

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 16.06 AU - 18.34 AU

Year: 25071 Days

Day: 23.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,696,438 km

• M1: 90,806 km (0.097 R)
• M2: 526,285 km (0.054 R)
• M3: 859,589 km (0.108 R)
• M4: 1,094,458 km (0.098 R)
• M5: 1,521,859 km (0.1 R)
• M6: 1,818,213 km (0.079 R)
• M7: 6,039,715 km (0.049 R)
• M8: 6,658,900 km (0.106 R)
• M9: 8,516,756 km (0.117 R)
• M10: 9,241,558 km (0.08 R)
• M11: 9,673,896 km (0.077 R)
• M12: 11,293,592 km (0.077 R)
• M13: 14,913,561 km (0.109 R)
• M14: 16,196,363 km (0.048 R)
• M15: 17,144,963 km (0.106 R)
• M16: 20,849,455 km (0.055 R)
• M17: 21,876,295 km (0.04 R)
• M18: 26,322,344 km (0.12 R)
• M19: 27,300,415 km (0.109 R)
• M20: 29,560,539 km (0.075 R)
• M21: 52,806,104 km (0.057 R)
• M22: 53,665,543 km (0.089 R)
• M23: 55,236,022 km (0.053 R)
• M24: 55,766,197 km (0.101 R)
• M25: 59,019,202 km (0.044 R)
• M26: 60,692,155 km (0.087 R)
• M27: 64,914,256 km (0.073 R)

Kuiper Belt

Range: 31.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 17,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit