🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.55 AU - 0.57 AU

Year: 157 Days

Day: 41.9 Hours

Environment

Temp: 133 °C

Axial Tilt: 29.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,606,305 km

• M1: 128,654 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.5 AU - 1.64 AU

Year: 737 Days

Day: 17.9 Hours

Environment

Temp: -43 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.72 AU - 4.36 AU

Year: 2496 Days

Day: 41.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.1

Radius: 12.4

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.15 AU - 6.31 AU

Year: 4482 Days

Day: 10.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,606,305 km

• M1: 154,235 km (0.101 R)
• M2: 1,000,511 km (0.096 R)
• M3: 1,810,433 km (0.086 R)
• M4: 2,835,029 km (0.085 R)
• M5: 3,560,878 km (0.102 R)
• M6: 4,581,584 km (0.083 R)
• M7: 6,339,060 km (0.118 R)
• M8: 6,791,295 km (0.104 R)
• M9: 9,304,090 km (0.118 R)
• M10: 9,762,159 km (0.102 R)
• M11: 11,042,716 km (0.078 R)
• M12: 11,989,073 km (0.08 R)
• M13: 13,039,998 km (0.101 R)
• M14: 14,205,963 km (0.071 R)
• M15: 20,886,107 km (0.067 R)
• M16: 21,601,035 km (0.032 R)
• M17: 23,004,113 km (0.077 R)
• M18: 25,021,441 km (0.106 R)
• M19: 26,818,410 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.7

Radius: 9

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.91 AU - 5.79 AU

Year: 4637 Days

Day: 11.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,606,305 km

• M1: 112,198 km (0.065 R)
• M2: 561,441 km (0.09 R)
• M3: 939,175 km (0.118 R)
• M4: 1,393,803 km (0.055 R)
• M5: 1,878,052 km (0.11 R)
• M6: 2,766,214 km (0.065 R)
• M7: 3,324,962 km (0.089 R)
• M8: 3,664,400 km (0.107 R)
• M9: 4,539,248 km (0.037 R)
• M10: 5,094,256 km (0.12 R)
• M11: 6,088,035 km (0.049 R)
• M12: 7,205,830 km (0.084 R)
• M13: 8,650,347 km (0.07 R)
• M14: 9,336,852 km (0.087 R)
• M15: 10,411,713 km (0.039 R)
• M16: 10,864,097 km (0.103 R)
• M17: 11,424,191 km (0.081 R)
• M18: 11,856,828 km (0.105 R)
• M19: 12,551,411 km (0.115 R)
• M20: 12,908,651 km (0.117 R)
• M21: 15,720,791 km (0.05 R)
• M22: 18,784,406 km (0.092 R)
• M23: 20,773,609 km (0.104 R)
• M24: 23,051,087 km (0.114 R)
• M25: 23,819,871 km (0.116 R)
• M26: 25,166,102 km (0.1 R)
• M27: 29,597,939 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.5

Radius: 14.9

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.61 AU - 7.33 AU

Year: 5466 Days

Day: 9.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,606,305 km

• M1: 185,352 km (0.111 R)
• M2: 911,201 km (0.118 R)
• M3: 1,547,291 km (0.118 R)
• M4: 2,255,337 km (0.105 R)
• M5: 2,765,317 km (0.073 R)
• M6: 3,496,701 km (0.098 R)
• M7: 4,452,781 km (0.109 R)
• M8: 5,519,713 km (0.087 R)
• M9: 6,459,187 km (0.089 R)
• M10: 7,753,508 km (0.066 R)
• M11: 8,385,858 km (0.109 R)
• M12: 10,807,100 km (0.044 R)
• M13: 12,526,428 km (0.116 R)
• M14: 13,086,672 km (0.119 R)
• M15: 17,052,362 km (0.088 R)
• M16: 18,644,682 km (0.116 R)
• M17: 20,473,516 km (0.059 R)
• M18: 21,830,368 km (0.077 R)
• M19: 22,419,335 km (0.1 R)
• M20: 23,860,711 km (0.095 R)
• M21: 24,564,569 km (0.074 R)
• M22: 25,443,755 km (0.059 R)
• M23: 27,519,875 km (0.05 R)
• M24: 28,730,869 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.4

Radius: 10.2

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 9.21 AU - 9.81 AU

Year: 10990 Days

Day: 13.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,606,305 km

• M1: 126,859 km (0.055 R)
• M2: 620,981 km (0.1 R)
• M3: 1,459,327 km (0.113 R)
• M4: 1,840,054 km (0.119 R)
• M5: 3,308,357 km (0.114 R)
• M6: 4,580,388 km (0.089 R)
• M7: 5,375,351 km (0.105 R)
• M8: 5,772,234 km (0.07 R)
• M9: 6,888,683 km (0.097 R)
• M10: 7,640,861 km (0.029 R)
• M11: 10,683,382 km (0.097 R)
• M12: 12,876,338 km (0.05 R)
• M13: 17,840,743 km (0.081 R)
• M14: 21,312,610 km (0.044 R)
• M15: 34,385,220 km (0.09 R)
• M16: 34,724,359 km (0.09 R)
• M17: 35,409,517 km (0.099 R)
• M18: 38,482,706 km (0.099 R)
• M19: 39,339,602 km (0.115 R)
• M20: 42,633,748 km (0.113 R)
• M21: 44,615,620 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394

Radius: 4.7

Gravity: 17.84 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 17.64 AU - 17.68 AU

Year: 27811 Days

Day: 24.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,606,305 km

• M1: 58,642 km (0.103 R)
• M2: 205,099 km (0.089 R)
• M3: 1,004,400 km (0.104 R)
• M4: 1,843,943 km (0.119 R)
• M5: 3,464,986 km (0.1 R)
• M6: 4,876,591 km (0.044 R)
• M7: 5,330,322 km (0.104 R)
• M8: 5,894,754 km (0.068 R)
• M9: 6,234,641 km (0.086 R)
• M10: 7,877,076 km (0.115 R)
• M11: 9,269,682 km (0.09 R)
• M12: 13,892,705 km (0.117 R)
• M13: 14,266,551 km (0.091 R)
• M14: 16,073,244 km (0.117 R)
• M15: 16,568,563 km (0.092 R)
• M16: 21,692,140 km (0.116 R)
• M17: 23,120,351 km (0.064 R)
• M18: 26,162,424 km (0.115 R)
• M19: 30,327,079 km (0.065 R)
• M20: 33,158,966 km (0.106 R)
• M21: 38,750,336 km (0.107 R)
• M22: 43,492,589 km (0.09 R)
• M23: 45,919,964 km (0.111 R)
• M24: 46,250,426 km (0.065 R)
• M25: 53,376,371 km (0.103 R)
• M26: 53,741,539 km (0.109 R)
• M27: 56,723,324 km (0.084 R)
• M28: 57,869,244 km (0.081 R)
• M29: 58,641,767 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 255.6

Radius: 7.3

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 17.64 AU - 19.42 AU

Year: 29891 Days

Day: 24.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,606,305 km

• M1: 93,798 km (0.095 R)
• M2: 322,683 km (0.075 R)
• M3: 558,449 km (0.092 R)
• M4: 821,592 km (0.12 R)
• M5: 1,694,645 km (0.107 R)
• M6: 3,130,784 km (0.083 R)
• M7: 3,625,804 km (0.049 R)
• M8: 4,431,687 km (0.08 R)
• M9: 4,736,717 km (0.108 R)
• M10: 6,607,588 km (0.117 R)
• M11: 6,916,508 km (0.027 R)
• M12: 7,563,220 km (0.088 R)
• M13: 10,617,709 km (0.026 R)
• M14: 12,316,692 km (0.11 R)
• M15: 15,927,536 km (0.087 R)
• M16: 16,323,521 km (0.113 R)
• M17: 16,725,940 km (0.109 R)
• M18: 19,014,488 km (0.051 R)
• M19: 22,676,943 km (0.049 R)
• M20: 23,995,199 km (0.036 R)
• M21: 24,410,932 km (0.068 R)
• M22: 26,012,826 km (0.054 R)
• M23: 30,624,928 km (0.088 R)
• M24: 34,159,327 km (0.104 R)
• M25: 34,817,857 km (0.071 R)
• M26: 38,662,971 km (0.112 R)
• M27: 51,533,624 km (0.073 R)
• M28: 52,923,837 km (0.058 R)
• M29: 53,275,243 km (0.077 R)
• M30: 55,779,062 km (0.074 R)
• M31: 61,212,906 km (0.087 R)
• M32: 61,600,214 km (0.074 R)
• M33: 62,771,865 km (0.103 R)
• M34: 69,272,192 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 12,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit