🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.59 AU - 0.97 AU

Year: 258 Days

Day: 46.9 Hours

Environment

Temp: 134 °C

Axial Tilt: 29.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.94 AU - 1.28 AU

Year: 438 Days

Day: 25.5 Hours

Environment

Temp: 7 °C

Axial Tilt: 54.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 101,617,605 km

• M1: 81,980 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.1 AU - 1.8 AU

Year: 654 Days

Day: 36 Hours

Environment

Temp: -52 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.65 AU - 5.07 AU

Year: 3412 Days

Day: 38.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.2

Radius: 9.9

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 5.14 AU - 6.12 AU

Year: 5006 Days

Day: 8.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 101,617,605 km

• M1: 124,615 km (0.095 R)
• M2: 501,452 km (0.062 R)
• M3: 1,005,447 km (0.107 R)
• M4: 1,323,941 km (0.114 R)
• M5: 2,281,966 km (0.099 R)
• M6: 2,718,193 km (0.096 R)
• M7: 3,372,235 km (0.117 R)
• M8: 4,175,576 km (0.11 R)
• M9: 4,571,561 km (0.06 R)
• M10: 5,046,834 km (0.096 R)
• M11: 5,791,382 km (0.091 R)
• M12: 6,284,906 km (0.097 R)
• M13: 7,250,859 km (0.036 R)
• M14: 9,185,459 km (0.119 R)
• M15: 9,729,098 km (0.075 R)
• M16: 11,537,137 km (0.061 R)
• M17: 11,973,066 km (0.066 R)
• M18: 14,710,108 km (0.083 R)
• M19: 16,526,526 km (0.085 R)
• M20: 17,775,069 km (0.118 R)
• M21: 18,685,672 km (0.074 R)
• M22: 20,248,820 km (0.12 R)
• M23: 21,677,330 km (0.093 R)
• M24: 22,192,844 km (0.111 R)
• M25: 25,950,743 km (0.108 R)
• M26: 26,281,952 km (0.093 R)
• M27: 27,037,272 km (0.12 R)
• M28: 28,240,936 km (0.073 R)
• M29: 29,033,356 km (0.093 R)
• M30: 31,125,782 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387

Radius: 11.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.78 AU - 6.7 AU

Year: 5841 Days

Day: 13.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 101,617,605 km

• M1: 139,276 km (0.044 R)
• M2: 520,152 km (0.09 R)
• M3: 1,876,107 km (0.047 R)
• M4: 2,299,319 km (0.101 R)
• M5: 6,300,763 km (0.079 R)
• M6: 7,600,918 km (0.097 R)
• M7: 8,878,484 km (0.09 R)
• M8: 9,347,922 km (0.061 R)
• M9: 11,257,988 km (0.054 R)
• M10: 13,062,886 km (0.082 R)
• M11: 13,671,001 km (0.102 R)
• M12: 14,297,816 km (0.056 R)
• M13: 17,419,176 km (0.092 R)
• M14: 19,042,014 km (0.104 R)
• M15: 20,695,519 km (0.103 R)
• M16: 25,128,104 km (0.03 R)
• M17: 25,674,136 km (0.096 R)
• M18: 27,114,764 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.7

Radius: 14.7

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.79 AU - 9.69 AU

Year: 10525 Days

Day: 10.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 101,617,605 km

• M1: 187,147 km (0.035 R)
• M2: 874,100 km (0.107 R)
• M3: 1,879,847 km (0.08 R)
• M4: 3,211,866 km (0.081 R)
• M5: 4,970,838 km (0.096 R)
• M6: 6,881,801 km (0.109 R)
• M7: 7,806,017 km (0.092 R)
• M8: 9,075,804 km (0.076 R)
• M9: 9,795,669 km (0.11 R)
• M10: 11,003,522 km (0.072 R)
• M11: 12,390,892 km (0.076 R)
• M12: 13,714,684 km (0.085 R)
• M13: 16,592,049 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 618.7

Radius: 5.4

Gravity: 21.22 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 9.45 AU - 15.67 AU

Year: 16681 Days

Day: 18.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 101,617,605 km

• M1: 68,516 km (0.105 R)
• M2: 242,049 km (0.1 R)
• M3: 492,925 km (0.032 R)
• M4: 670,049 km (0.039 R)
• M5: 1,108,969 km (0.095 R)
• M6: 1,306,289 km (0.094 R)
• M7: 2,449,516 km (0.075 R)
• M8: 2,671,369 km (0.114 R)
• M9: 3,391,533 km (0.077 R)
• M10: 4,620,031 km (0.117 R)
• M11: 4,924,912 km (0.087 R)
• M12: 6,199,485 km (0.114 R)
• M13: 7,088,396 km (0.084 R)
• M14: 8,451,382 km (0.079 R)
• M15: 8,856,194 km (0.074 R)
• M16: 10,036,222 km (0.116 R)
• M17: 11,377,965 km (0.048 R)
• M18: 12,508,177 km (0.074 R)
• M19: 14,771,443 km (0.085 R)
• M20: 21,827,676 km (0.102 R)
• M21: 24,671,082 km (0.08 R)
• M22: 24,875,882 km (0.113 R)
• M23: 27,312,682 km (0.097 R)
• M24: 30,136,940 km (0.113 R)
• M25: 31,199,384 km (0.059 R)
• M26: 36,093,478 km (0.096 R)
• M27: 40,188,870 km (0.075 R)
• M28: 43,084,636 km (0.11 R)
• M29: 44,130,175 km (0.071 R)
• M30: 46,739,461 km (0.109 R)
• M31: 54,832,556 km (0.082 R)
• M32: 63,618,589 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.9

Radius: 3.3

Gravity: 76.57 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 16.13 AU - 19.33 AU

Year: 27976 Days

Day: 16 Hours

Environment

Temp: -198 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 101,617,605 km

• M1: 41,439 km (0.115 R)
• M2: 203,752 km (0.049 R)
• M3: 441,763 km (0.082 R)
• M4: 566,976 km (0.051 R)
• M5: 694,733 km (0.111 R)
• M6: 853,605 km (0.062 R)
• M7: 1,008,888 km (0.063 R)
• M8: 1,244,953 km (0.115 R)
• M9: 1,996,234 km (0.066 R)
• M10: 2,153,461 km (0.101 R)
• M11: 2,270,896 km (0.076 R)
• M12: 2,756,341 km (0.073 R)
• M13: 2,951,416 km (0.061 R)
• M14: 3,369,542 km (0.1 R)
• M15: 3,859,775 km (0.068 R)
• M16: 5,397,641 km (0.113 R)
• M17: 6,206,516 km (0.078 R)
• M18: 8,693,731 km (0.068 R)
• M19: 8,812,212 km (0.078 R)
• M20: 9,735,979 km (0.053 R)
• M21: 13,515,270 km (0.097 R)
• M22: 14,159,289 km (0.112 R)
• M23: 14,489,003 km (0.094 R)
• M24: 15,249,259 km (0.077 R)
• M25: 16,484,040 km (0.078 R)
• M26: 19,452,660 km (0.069 R)
• M27: 22,646,425 km (0.112 R)
• M28: 24,602,716 km (0.113 R)
• M29: 25,198,864 km (0.118 R)
• M30: 27,808,000 km (0.102 R)
• M31: 28,847,556 km (0.12 R)
• M32: 31,003,710 km (0.084 R)
• M33: 32,689,678 km (0.114 R)
• M34: 39,718,683 km (0.109 R)
• M35: 40,538,480 km (0.087 R)
• M36: 51,465,407 km (0.091 R)
• M37: 55,842,492 km (0.119 R)
• M38: 68,089,471 km (0.108 R)
• M39: 73,597,814 km (0.11 R)
• M40: 83,603,668 km (0.108 R)
• M41: 86,034,783 km (0.064 R)
• M42: 101,009,380 km (0.083 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 19,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit