🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.73 AU - 0.83 AU

Year: 297 Days

Day: 26.2 Hours

Environment

Temp: -4 °C

Axial Tilt: 15.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,029,961 km

• M1: 223,350 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.37 AU - 1.51 AU

Year: 744 Days

Day: 25.3 Hours

Environment

Temp: -88 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.43 AU - 1.77 AU

Year: 871 Days

Day: 32.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 65,029,961 km

• M1: 249,679 km (0.076 R)
• M2: 1,186,910 km (0.071 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.42 AU - 1.94 AU

Year: 937 Days

Day: 38.1 Hours

Environment

Temp: -103 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.12 AU - 2.12 AU

Year: 1329 Days

Day: 44.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,029,961 km

• M1: 1,439,880 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.47 AU - 2.79 AU

Year: 1836 Days

Day: 36.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 65,029,961 km

• M1: 84,822 km (0.042 R)
• M2: 727,046 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.4

Radius: 14.3

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.37 AU - 7.47 AU

Year: 7002 Days

Day: 13 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,029,961 km

• M1: 188,493 km (0.042 R)
• M2: 926,759 km (0.095 R)
• M3: 2,032,586 km (0.099 R)
• M4: 3,457,506 km (0.107 R)
• M5: 4,857,892 km (0.107 R)
• M6: 5,501,910 km (0.066 R)
• M7: 6,540,269 km (0.075 R)
• M8: 7,364,554 km (0.106 R)
• M9: 9,090,763 km (0.109 R)
• M10: 9,797,464 km (0.117 R)
• M11: 10,493,243 km (0.087 R)
• M12: 11,321,268 km (0.09 R)
• M13: 16,644,558 km (0.036 R)
• M14: 17,568,924 km (0.077 R)
• M15: 20,848,707 km (0.113 R)
• M16: 21,689,746 km (0.084 R)
• M17: 27,218,734 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.6

Radius: 11.9

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 6.85 AU - 7.43 AU

Year: 8212 Days

Day: 6.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,029,961 km

• M1: 147,952 km (0.09 R)
• M2: 786,885 km (0.07 R)
• M3: 1,269,787 km (0.08 R)
• M4: 2,137,903 km (0.087 R)
• M5: 3,389,439 km (0.09 R)
• M6: 4,136,680 km (0.112 R)
• M7: 5,475,731 km (0.067 R)
• M8: 8,265,282 km (0.049 R)
• M9: 8,989,785 km (0.104 R)
• M10: 9,526,392 km (0.027 R)
• M11: 10,862,002 km (0.111 R)
• M12: 22,162,925 km (0.106 R)
• M13: 24,755,306 km (0.04 R)
• M14: 30,634,951 km (0.111 R)
• M15: 31,646,532 km (0.082 R)
• M16: 34,057,750 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.4

Radius: 4

Gravity: 27.53 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 9.19 AU - 12.69 AU

Year: 15576 Days

Day: 20.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 166.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 65,029,961 km

• M1: 58,044 km (0.035 R)
• M2: 202,107 km (0.092 R)
• M3: 362,924 km (0.054 R)
• M4: 564,134 km (0.069 R)
• M5: 725,550 km (0.081 R)
• M6: 856,597 km (0.104 R)
• M7: 1,179,729 km (0.086 R)
• M8: 1,335,460 km (0.093 R)
• M9: 1,610,122 km (0.091 R)
• M10: 2,063,852 km (0.051 R)
• M11: 2,706,225 km (0.107 R)
• M12: 4,164,506 km (0.106 R)
• M13: 4,434,679 km (0.12 R)
• M14: 4,589,812 km (0.087 R)
• M15: 4,943,910 km (0.102 R)
• M16: 5,742,613 km (0.11 R)
• M17: 6,826,749 km (0.097 R)
• M18: 7,769,216 km (0.11 R)
• M19: 8,318,240 km (0.104 R)
• M20: 9,290,028 km (0.077 R)
• M21: 10,173,553 km (0.073 R)
• M22: 11,807,760 km (0.1 R)
• M23: 12,470,927 km (0.106 R)
• M24: 13,095,050 km (0.062 R)
• M25: 13,871,014 km (0.059 R)
• M26: 18,533,830 km (0.104 R)
• M27: 20,952,678 km (0.07 R)
• M28: 22,012,429 km (0.1 R)
• M29: 23,107,336 km (0.081 R)
• M30: 25,109,853 km (0.076 R)
• M31: 26,507,247 km (0.09 R)
• M32: 27,225,167 km (0.089 R)
• M33: 30,896,747 km (0.044 R)
• M34: 32,733,211 km (0.074 R)
• M35: 33,440,360 km (0.113 R)
• M36: 34,520,008 km (0.103 R)
• M37: 40,133,967 km (0.079 R)
• M38: 43,015,671 km (0.115 R)
• M39: 43,579,805 km (0.075 R)
• M40: 45,885,556 km (0.071 R)
• M41: 49,958,807 km (0.111 R)
• M42: 52,322,454 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315.7

Radius: 4.6

Gravity: 14.92 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 14.17 AU - 14.43 AU

Year: 23277 Days

Day: 17.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 65,029,961 km

• M1: 62,382 km (0.075 R)
• M2: 247,136 km (0.114 R)
• M3: 827,276 km (0.098 R)
• M4: 1,423,274 km (0.106 R)
• M5: 1,759,421 km (0.091 R)
• M6: 2,370,977 km (0.085 R)
• M7: 3,793,952 km (0.114 R)
• M8: 4,405,358 km (0.071 R)
• M9: 4,734,623 km (0.107 R)
• M10: 5,591,819 km (0.083 R)
• M11: 8,375,237 km (0.094 R)
• M12: 9,087,921 km (0.101 R)
• M13: 9,458,924 km (0.03 R)
• M14: 10,926,180 km (0.079 R)
• M15: 11,775,896 km (0.078 R)
• M16: 12,153,181 km (0.115 R)
• M17: 14,021,210 km (0.105 R)
• M18: 14,804,804 km (0.111 R)
• M19: 15,919,757 km (0.078 R)
• M20: 16,536,698 km (0.113 R)
• M21: 20,940,710 km (0.071 R)
• M22: 21,494,222 km (0.089 R)
• M23: 22,534,376 km (0.082 R)
• M24: 23,806,407 km (0.111 R)
• M25: 25,125,561 km (0.089 R)
• M26: 31,127,876 km (0.053 R)
• M27: 33,074,444 km (0.061 R)
• M28: 35,229,850 km (0.059 R)
• M29: 35,750,151 km (0.071 R)
• M30: 41,527,920 km (0.051 R)
• M31: 45,246,175 km (0.082 R)
• M32: 47,422,375 km (0.116 R)
• M33: 47,738,775 km (0.091 R)
• M34: 49,180,450 km (0.094 R)
• M35: 64,640,941 km (0.078 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 13,168 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit