🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.45 AU - 0.69 AU

Year: 278 Days

Day: 39.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 44.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,602,124 km

• M1: 98,286 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.5

Radius: 13.5

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.74 AU - 0.88 AU

Year: 471 Days

Day: 8.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,602,124 km

• M1: 168,148 km (0.093 R)
• M2: 613,950 km (0.112 R)
• M3: 1,152,801 km (0.062 R)
• M4: 1,611,319 km (0.093 R)
• M5: 2,096,016 km (0.029 R)
• M6: 2,936,756 km (0.084 R)
• M7: 3,442,247 km (0.109 R)
• M8: 4,800,596 km (0.03 R)
• M9: 5,984,812 km (0.099 R)
• M10: 6,606,990 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539

Radius: 12.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.84 AU - 1.06 AU

Year: 598 Days

Day: 7.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,602,124 km

• M1: 159,172 km (0.055 R)
• M2: 713,133 km (0.074 R)
• M3: 1,169,855 km (0.102 R)
• M4: 1,717,683 km (0.073 R)
• M5: 2,199,238 km (0.067 R)
• M6: 2,686,628 km (0.07 R)
• M7: 3,721,995 km (0.086 R)
• M8: 4,317,245 km (0.119 R)
• M9: 4,911,298 km (0.102 R)
• M10: 6,589,188 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.2

Radius: 12.6

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.87 AU - 1.19 AU

Year: 675 Days

Day: 14.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,602,124 km

• M1: 157,078 km (0.101 R)
• M2: 551,268 km (0.095 R)
• M3: 1,088,624 km (0.109 R)
• M4: 1,562,251 km (0.109 R)
• M5: 1,997,132 km (0.104 R)
• M6: 2,390,275 km (0.102 R)
• M7: 3,062,568 km (0.107 R)
• M8: 3,831,800 km (0.079 R)
• M9: 4,741,056 km (0.056 R)
• M10: 5,998,575 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505

Radius: 8.7

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.21 AU - 1.37 AU

Year: 946 Days

Day: 12.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,602,124 km

• M1: 108,309 km (0.102 R)
• M2: 391,198 km (0.074 R)
• M3: 785,239 km (0.055 R)
• M4: 1,078,301 km (0.084 R)
• M5: 1,593,965 km (0.09 R)
• M6: 2,371,725 km (0.071 R)
• M7: 3,077,079 km (0.097 R)
• M8: 3,535,147 km (0.11 R)
• M9: 4,053,504 km (0.104 R)
• M10: 4,339,385 km (0.093 R)
• M11: 4,638,731 km (0.106 R)
• M12: 5,131,955 km (0.042 R)
• M13: 5,916,745 km (0.045 R)
• M14: 6,823,458 km (0.112 R)
• M15: 8,857,540 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500

Radius: 10.7

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.87 AU - 3.23 AU

Year: 3439 Days

Day: 8 Hours

Environment

Temp: -197 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,602,124 km

• M1: 133,142 km (0.084 R)
• M2: 615,296 km (0.05 R)
• M3: 990,039 km (0.052 R)
• M4: 1,372,261 km (0.1 R)
• M5: 2,195,648 km (0.062 R)
• M6: 2,564,706 km (0.075 R)
• M7: 3,302,822 km (0.095 R)
• M8: 3,970,627 km (0.064 R)
• M9: 4,935,084 km (0.108 R)
• M10: 5,600,196 km (0.086 R)
• M11: 6,103,444 km (0.075 R)
• M12: 7,048,902 km (0.109 R)
• M13: 7,509,813 km (0.1 R)
• M14: 8,526,331 km (0.112 R)
• M15: 9,193,388 km (0.11 R)
• M16: 10,085,140 km (0.102 R)
• M17: 11,362,557 km (0.098 R)
• M18: 12,301,583 km (0.096 R)
• M19: 15,175,358 km (0.083 R)
• M20: 17,286,034 km (0.072 R)
• M21: 20,436,565 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.7

Radius: 13.8

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 3.49 AU - 5.07 AU

Year: 5717 Days

Day: 13.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,602,124 km

• M1: 171,589 km (0.116 R)
• M2: 602,730 km (0.107 R)
• M3: 1,158,037 km (0.108 R)
• M4: 1,701,676 km (0.094 R)
• M5: 3,240,290 km (0.045 R)
• M6: 4,677,028 km (0.054 R)
• M7: 5,838,655 km (0.11 R)
• M8: 6,975,450 km (0.109 R)
• M9: 7,542,126 km (0.034 R)
• M10: 8,449,886 km (0.113 R)
• M11: 10,078,857 km (0.084 R)
• M12: 10,758,331 km (0.091 R)
• M13: 15,142,895 km (0.078 R)
• M14: 18,719,930 km (0.104 R)
• M15: 20,812,654 km (0.081 R)
• M16: 21,322,484 km (0.116 R)
• M17: 22,595,711 km (0.079 R)
• M18: 25,047,171 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.3

Radius: 3.6

Gravity: 40.07 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.23 AU - 7.79 AU

Year: 10725 Days

Day: 17 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,602,124 km

• M1: 44,730 km (0.087 R)
• M2: 294,109 km (0.044 R)
• M3: 444,754 km (0.109 R)
• M4: 677,230 km (0.113 R)
• M5: 830,418 km (0.107 R)
• M6: 1,219,223 km (0.115 R)
• M7: 1,615,208 km (0.067 R)
• M8: 2,126,235 km (0.062 R)
• M9: 2,675,857 km (0.087 R)
• M10: 3,106,400 km (0.116 R)
• M11: 3,707,484 km (0.067 R)
• M12: 4,158,222 km (0.101 R)
• M13: 5,936,642 km (0.084 R)
• M14: 6,740,581 km (0.115 R)
• M15: 7,450,423 km (0.117 R)
• M16: 11,869,544 km (0.114 R)
• M17: 27,843,604 km (0.119 R)
• M18: 28,139,958 km (0.094 R)
• M19: 28,739,097 km (0.119 R)
• M20: 32,295,936 km (0.115 R)
• M21: 41,028,114 km (0.035 R)
• M22: 42,971,091 km (0.102 R)
• M23: 44,165,929 km (0.074 R)
• M24: 45,110,340 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835

Radius: 4.2

Gravity: 47.34 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 5.3 AU - 8.26 AU

Year: 11399 Days

Day: 15 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 39,602,124 km

• M1: 52,509 km (0.033 R)
• M2: 240,703 km (0.074 R)
• M3: 614,847 km (0.116 R)
• M4: 758,312 km (0.099 R)
• M5: 1,056,161 km (0.107 R)
• M6: 1,358,049 km (0.1 R)
• M7: 1,514,678 km (0.084 R)
• M8: 1,731,296 km (0.039 R)
• M9: 3,843,468 km (0.087 R)
• M10: 5,037,858 km (0.092 R)
• M11: 5,774,029 km (0.082 R)
• M12: 6,110,624 km (0.07 R)
• M13: 6,303,157 km (0.091 R)
• M14: 7,500,538 km (0.057 R)
• M15: 10,719,884 km (0.038 R)
• M16: 10,887,434 km (0.111 R)
• M17: 11,575,135 km (0.107 R)
• M18: 11,810,752 km (0.091 R)
• M19: 12,474,966 km (0.111 R)
• M20: 14,076,711 km (0.062 R)
• M21: 15,382,102 km (0.094 R)
• M22: 16,100,620 km (0.044 R)
• M23: 16,841,130 km (0.103 R)
• M24: 17,143,617 km (0.116 R)
• M25: 23,885,544 km (0.078 R)
• M26: 24,171,575 km (0.064 R)
• M27: 25,141,418 km (0.091 R)
• M28: 25,536,506 km (0.083 R)
• M29: 28,206,080 km (0.12 R)
• M30: 28,739,995 km (0.06 R)
• M31: 39,139,740 km (0.106 R)
• M32: 40,745,822 km (0.097 R)
• M33: 42,534,863 km (0.109 R)
• M34: 45,680,458 km (0.108 R)
• M35: 47,610,270 km (0.117 R)
• M36: 48,671,518 km (0.118 R)
• M37: 51,790,633 km (0.119 R)
• M38: 52,590,683 km (0.067 R)
• M39: 53,236,646 km (0.097 R)
• M40: 55,372,605 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 107.4

Radius: 5.6

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 8.17 AU - 10.87 AU

Year: 18966 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,602,124 km

• M1: 73,453 km (0.096 R)
• M2: 336,595 km (0.095 R)
• M3: 679,922 km (0.055 R)
• M4: 1,281,904 km (0.115 R)
• M5: 1,808,489 km (0.074 R)
• M6: 2,543,164 km (0.073 R)
• M7: 6,755,092 km (0.086 R)
• M8: 7,822,921 km (0.09 R)
• M9: 8,396,928 km (0.11 R)
• M10: 10,191,804 km (0.097 R)
• M11: 12,831,907 km (0.09 R)
• M12: 16,416,122 km (0.038 R)
• M13: 17,837,751 km (0.11 R)
• M14: 20,158,911 km (0.119 R)
• M15: 27,844,951 km (0.116 R)
• M16: 28,888,845 km (0.056 R)
• M17: 29,081,377 km (0.058 R)
• M18: 30,752,834 km (0.113 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 10,633 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit