🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.76 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.37 AU - 1.65 AU

Year: 699 Days

Day: 26.4 Hours

Environment

Temp: -40 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,734,112 km

• M1: 339,587 km (0.093 R)
• M2: 1,287,439 km (0.075 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.09 AU - 2.53 AU

Year: 1323 Days

Day: 20.2 Hours

Environment

Temp: -93 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.49 AU - 2.61 AU

Year: 1534 Days

Day: 15.6 Hours

Environment

Temp: -92 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.75 AU - 2.89 AU

Year: 1784 Days

Day: 35.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 125.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,734,112 km

• M1: 1,682,078 km (0.045 R)
• M2: 1,783,955 km (0.063 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.67 AU - 3.93 AU

Year: 2258 Days

Day: 29.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,734,112 km

• M1: 55,950 km (0.119 R)

Asteroid Belt

Center: 5.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.5

Radius: 8

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 6.99 AU - 8.39 AU

Year: 8034 Days

Day: 7.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,734,112 km

• M1: 99,782 km (0.049 R)
• M2: 453,132 km (0.086 R)
• M3: 793,916 km (0.107 R)
• M4: 1,521,261 km (0.115 R)
• M5: 2,046,499 km (0.103 R)
• M6: 2,511,449 km (0.097 R)
• M7: 2,852,981 km (0.066 R)
• M8: 3,164,444 km (0.098 R)
• M9: 3,741,742 km (0.089 R)
• M10: 4,091,651 km (0.111 R)
• M11: 4,362,124 km (0.108 R)
• M12: 4,618,385 km (0.114 R)
• M13: 5,929,461 km (0.09 R)
• M14: 6,471,753 km (0.116 R)
• M15: 7,728,824 km (0.117 R)
• M16: 8,181,956 km (0.11 R)
• M17: 8,813,559 km (0.047 R)
• M18: 10,129,272 km (0.051 R)
• M19: 10,764,464 km (0.091 R)
• M20: 11,474,157 km (0.067 R)
• M21: 13,304,487 km (0.088 R)
• M22: 13,900,485 km (0.095 R)
• M23: 14,177,241 km (0.091 R)
• M24: 14,741,673 km (0.108 R)
• M25: 16,036,443 km (0.12 R)
• M26: 16,649,345 km (0.07 R)
• M27: 19,810,648 km (0.099 R)
• M28: 20,444,943 km (0.097 R)
• M29: 23,118,107 km (0.093 R)
• M30: 24,618,873 km (0.074 R)
• M31: 25,105,963 km (0.091 R)
• M32: 28,966,636 km (0.083 R)
• M33: 31,653,862 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.7

Radius: 10.1

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 7.74 AU - 8.1 AU

Year: 8397 Days

Day: 12.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,734,112 km

• M1: 125,662 km (0.09 R)
• M2: 556,354 km (0.106 R)
• M3: 900,579 km (0.077 R)
• M4: 1,456,934 km (0.059 R)
• M5: 2,107,984 km (0.119 R)
• M6: 2,452,807 km (0.076 R)
• M7: 4,400,122 km (0.051 R)
• M8: 5,062,841 km (0.09 R)
• M9: 5,385,374 km (0.085 R)
• M10: 6,000,969 km (0.051 R)
• M11: 6,474,147 km (0.036 R)
• M12: 6,855,023 km (0.087 R)
• M13: 9,224,055 km (0.058 R)
• M14: 9,855,209 km (0.032 R)
• M15: 12,908,351 km (0.111 R)
• M16: 13,884,926 km (0.097 R)
• M17: 14,455,493 km (0.114 R)
• M18: 14,909,971 km (0.071 R)
• M19: 20,722,746 km (0.099 R)
• M20: 21,974,880 km (0.099 R)
• M21: 27,888,334 km (0.113 R)
• M22: 28,390,684 km (0.043 R)
• M23: 30,566,735 km (0.115 R)
• M24: 31,858,811 km (0.092 R)
• M25: 35,131,265 km (0.109 R)
• M26: 37,758,652 km (0.08 R)
• M27: 39,497,279 km (0.04 R)
• M28: 40,771,254 km (0.057 R)
• M29: 41,548,714 km (0.053 R)
• M30: 45,446,636 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.1

Radius: 9.2

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 9.52 AU - 13.82 AU

Year: 15019 Days

Day: 6.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,734,112 km

• M1: 114,742 km (0.093 R)
• M2: 861,235 km (0.117 R)
• M3: 1,329,626 km (0.105 R)
• M4: 2,243,669 km (0.067 R)
• M5: 2,676,306 km (0.109 R)
• M6: 3,025,168 km (0.073 R)
• M7: 3,815,194 km (0.089 R)
• M8: 5,283,049 km (0.044 R)
• M9: 5,870,819 km (0.088 R)
• M10: 7,259,386 km (0.114 R)
• M11: 10,458,836 km (0.108 R)
• M12: 11,107,343 km (0.108 R)
• M13: 12,013,607 km (0.115 R)
• M14: 13,029,526 km (0.086 R)
• M15: 14,231,694 km (0.085 R)
• M16: 16,782,338 km (0.036 R)
• M17: 23,766,165 km (0.104 R)
• M18: 25,076,343 km (0.072 R)
• M19: 31,350,927 km (0.061 R)
• M20: 35,505,559 km (0.073 R)
• M21: 38,597,447 km (0.069 R)
• M22: 45,311,250 km (0.038 R)
• M23: 45,737,155 km (0.1 R)
• M24: 46,597,044 km (0.09 R)
• M25: 48,201,481 km (0.043 R)
• M26: 48,497,087 km (0.054 R)
• M27: 49,993,364 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.4

Radius: 3.3

Gravity: 89.02 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 10.15 AU - 16.67 AU

Year: 18500 Days

Day: 15.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 72,734,112 km

• M1: 41,139 km (0.107 R)
• M2: 231,727 km (0.111 R)
• M3: 802,443 km (0.058 R)
• M4: 1,066,334 km (0.053 R)
• M5: 1,262,456 km (0.098 R)
• M6: 1,498,821 km (0.119 R)
• M7: 1,897,799 km (0.107 R)
• M8: 2,059,215 km (0.067 R)
• M9: 2,318,318 km (0.065 R)
• M10: 3,698,209 km (0.09 R)
• M11: 4,213,873 km (0.11 R)
• M12: 5,074,659 km (0.099 R)
• M13: 5,627,722 km (0.103 R)
• M14: 7,576,235 km (0.1 R)
• M15: 7,982,542 km (0.07 R)
• M16: 11,504,375 km (0.102 R)
• M17: 12,040,534 km (0.076 R)
• M18: 13,453,636 km (0.066 R)
• M19: 15,774,796 km (0.103 R)
• M20: 17,990,939 km (0.119 R)
• M21: 21,290,021 km (0.086 R)
• M22: 21,893,200 km (0.103 R)
• M23: 23,239,281 km (0.109 R)
• M24: 24,311,449 km (0.102 R)
• M25: 25,528,428 km (0.111 R)
• M26: 26,323,541 km (0.062 R)
• M27: 27,488,160 km (0.103 R)
• M28: 31,186,967 km (0.107 R)
• M29: 33,828,716 km (0.083 R)
• M30: 36,046,654 km (0.112 R)
• M31: 47,913,206 km (0.114 R)
• M32: 49,996,805 km (0.119 R)
• M33: 52,140,094 km (0.067 R)
• M34: 55,280,004 km (0.095 R)
• M35: 61,124,194 km (0.101 R)
• M36: 67,581,885 km (0.055 R)
• M37: 68,664,226 km (0.035 R)
• M38: 72,656,395 km (0.038 R)
• M39: 73,564,155 km (0.103 R)
• M40: 74,249,762 km (0.08 R)
• M41: 77,270,442 km (0.047 R)
• M42: 78,930,380 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.7

Radius: 5.9

Gravity: 18.64 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 13.41 AU - 14.09 AU

Year: 19208 Days

Day: 20.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,734,112 km

• M1: 73,602 km (0.081 R)
• M2: 359,932 km (0.111 R)
• M3: 571,763 km (0.105 R)
• M4: 1,090,419 km (0.106 R)
• M5: 1,535,622 km (0.102 R)
• M6: 2,155,257 km (0.067 R)
• M7: 2,454,303 km (0.107 R)
• M8: 4,517,556 km (0.099 R)
• M9: 6,694,654 km (0.078 R)
• M10: 7,192,067 km (0.111 R)
• M11: 7,569,203 km (0.116 R)
• M12: 8,993,525 km (0.096 R)
• M13: 10,829,839 km (0.116 R)
• M14: 22,123,281 km (0.111 R)
• M15: 22,320,750 km (0.11 R)
• M16: 24,676,917 km (0.04 R)
• M17: 33,764,987 km (0.098 R)
• M18: 37,275,601 km (0.117 R)
• M19: 39,698,039 km (0.042 R)
• M20: 40,873,579 km (0.104 R)
• M21: 41,619,773 km (0.084 R)
• M22: 44,225,319 km (0.045 R)
• M23: 47,100,441 km (0.098 R)
• M24: 55,553,618 km (0.108 R)
• M25: 57,394,569 km (0.1 R)
• M26: 59,848,274 km (0.108 R)
• M27: 62,567,813 km (0.106 R)
• M28: 63,558,750 km (0.116 R)
• M29: 63,758,164 km (0.117 R)
• M30: 65,979,542 km (0.06 R)
• M31: 70,362,610 km (0.087 R)
• M32: 72,734,186 km (0.074 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 13,231 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit