🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.95 AU - 1.25 AU

Year: 437 Days

Day: 16.1 Hours

Environment

Temp: 10 °C

Axial Tilt: 34.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.12 AU - 2.82 AU

Year: 1470 Days

Day: 41.7 Hours

Environment

Temp: -96 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,275,442 km

• M1: 40,840 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.46 AU - 2.84 AU

Year: 1634 Days

Day: 34.3 Hours

Environment

Temp: -103 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.53 AU - 2.89 AU

Year: 1690 Days

Day: 42.9 Hours

Environment

Temp: -109 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.48 AU - 3.16 AU

Year: 1794 Days

Day: 22.5 Hours

Environment

Temp: -112 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 50,275,442 km

• M1: 1,179,130 km (0.073 R)
• M2: 1,205,460 km (0.071 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.73 AU - 3.37 AU

Year: 2017 Days

Day: 46.4 Hours

Environment

Temp: -111 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.1

Radius: 5.9

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 14.26 AU - 15.3 AU

Year: 21521 Days

Day: 21.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,275,442 km

• M1: 73,602 km (0.06 R)
• M2: 387,758 km (0.113 R)
• M3: 756,217 km (0.082 R)
• M4: 1,502,411 km (0.112 R)
• M5: 1,910,066 km (0.11 R)
• M6: 2,283,013 km (0.114 R)
• M7: 2,633,671 km (0.115 R)
• M8: 4,276,106 km (0.094 R)
• M9: 5,926,619 km (0.11 R)
• M10: 8,356,986 km (0.116 R)
• M11: 13,341,886 km (0.088 R)
• M12: 14,989,707 km (0.079 R)
• M13: 21,394,291 km (0.109 R)
• M14: 23,340,260 km (0.054 R)
• M15: 25,401,120 km (0.076 R)
• M16: 25,934,736 km (0.034 R)
• M17: 26,584,888 km (0.088 R)
• M18: 29,763,095 km (0.081 R)
• M19: 41,091,543 km (0.039 R)
• M20: 44,699,993 km (0.091 R)
• M21: 45,321,273 km (0.081 R)
• M22: 45,948,238 km (0.067 R)
• M23: 49,005,570 km (0.045 R)
• M24: 50,836,199 km (0.059 R)
• M25: 56,600,803 km (0.09 R)
• M26: 62,398,917 km (0.075 R)
• M27: 67,353,749 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.1

Radius: 4.8

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 16.93 AU - 17.79 AU

Year: 27395 Days

Day: 16.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,275,442 km

• M1: 59,839 km (0.08 R)
• M2: 394,340 km (0.11 R)
• M3: 614,249 km (0.112 R)
• M4: 1,388,119 km (0.05 R)
• M5: 5,866,630 km (0.057 R)
• M6: 8,846,919 km (0.075 R)
• M7: 11,314,087 km (0.073 R)
• M8: 11,905,298 km (0.084 R)
• M9: 13,802,199 km (0.096 R)
• M10: 14,683,480 km (0.101 R)
• M11: 17,629,660 km (0.063 R)
• M12: 18,992,946 km (0.035 R)
• M13: 19,490,508 km (0.082 R)
• M14: 20,338,878 km (0.101 R)
• M15: 27,606,941 km (0.07 R)
• M16: 29,550,815 km (0.113 R)
• M17: 32,990,070 km (0.106 R)
• M18: 34,315,059 km (0.111 R)
• M19: 38,370,956 km (0.076 R)
• M20: 39,298,912 km (0.1 R)
• M21: 54,566,871 km (0.108 R)
• M22: 57,443,937 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 957.6

Radius: 5.3

Gravity: 34.09 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 14.6 AU - 21.68 AU

Year: 29262 Days

Day: 21.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 50,275,442 km

• M1: 67,020 km (0.12 R)
• M2: 264,938 km (0.098 R)
• M3: 482,004 km (0.089 R)
• M4: 891,005 km (0.103 R)
• M5: 1,524,701 km (0.08 R)
• M6: 1,717,234 km (0.108 R)
• M7: 1,904,381 km (0.103 R)
• M8: 2,198,939 km (0.086 R)
• M9: 3,458,553 km (0.082 R)
• M10: 4,335,047 km (0.095 R)
• M11: 5,010,033 km (0.079 R)
• M12: 5,350,966 km (0.101 R)
• M13: 5,661,681 km (0.047 R)
• M14: 7,841,621 km (0.109 R)
• M15: 8,126,755 km (0.109 R)
• M16: 8,537,550 km (0.118 R)
• M17: 8,778,403 km (0.083 R)
• M18: 15,922,749 km (0.049 R)
• M19: 16,472,670 km (0.104 R)
• M20: 18,497,328 km (0.062 R)
• M21: 20,359,821 km (0.041 R)
• M22: 22,117,148 km (0.086 R)
• M23: 24,212,266 km (0.108 R)
• M24: 26,819,308 km (0.044 R)
• M25: 27,077,065 km (0.109 R)
• M26: 28,390,086 km (0.071 R)
• M27: 29,607,812 km (0.097 R)
• M28: 33,171,981 km (0.068 R)
• M29: 39,953,253 km (0.097 R)
• M30: 44,832,238 km (0.088 R)
• M31: 46,111,150 km (0.075 R)
• M32: 49,511,360 km (0.109 R)
• M33: 50,093,745 km (0.11 R)
• M34: 57,443,937 km (0.092 R)
• M35: 59,606,075 km (0.046 R)
• M36: 60,265,203 km (0.101 R)
• M37: 64,783,956 km (0.093 R)
• M38: 65,015,683 km (0.086 R)
• M39: 68,078,101 km (0.07 R)
• M40: 74,743,135 km (0.116 R)
• M41: 77,578,613 km (0.083 R)
• M42: 109,319,691 km (0.052 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.4

Radius: 5.8

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 14.18 AU - 22.22 AU

Year: 29407 Days

Day: 23.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,275,442 km

• M1: 77,641 km (0.119 R)
• M2: 327,619 km (0.097 R)
• M3: 866,022 km (0.102 R)
• M4: 1,553,275 km (0.041 R)
• M5: 2,206,269 km (0.115 R)
• M6: 3,660,361 km (0.052 R)
• M7: 4,525,934 km (0.117 R)
• M8: 5,022,749 km (0.045 R)
• M9: 7,171,872 km (0.101 R)
• M10: 7,803,025 km (0.099 R)
• M11: 8,424,754 km (0.036 R)
• M12: 8,747,735 km (0.065 R)
• M13: 8,935,930 km (0.079 R)
• M14: 10,647,180 km (0.106 R)
• M15: 12,036,944 km (0.077 R)
• M16: 15,103,850 km (0.09 R)
• M17: 18,269,191 km (0.118 R)
• M18: 21,592,358 km (0.086 R)
• M19: 28,364,654 km (0.066 R)
• M20: 31,012,237 km (0.106 R)
• M21: 35,344,741 km (0.103 R)
• M22: 37,779,297 km (0.1 R)
• M23: 44,073,627 km (0.112 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: 406 - 13,417 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit