🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.5 AU - 0.66 AU

Year: 290 Days

Day: 20.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,042,942 km

• M1: 65,075 km (0.068 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.6 AU - 0.66 AU

Year: 328 Days

Day: 15 Hours

Environment

Temp: -122 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.2

Radius: 12.5

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.57 AU - 0.85 AU

Year: 392 Days

Day: 10.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,042,942 km

• M1: 155,731 km (0.084 R)
• M2: 584,329 km (0.108 R)
• M3: 1,010,683 km (0.119 R)
• M4: 1,571,526 km (0.104 R)
• M5: 2,043,956 km (0.099 R)
• M6: 2,584,602 km (0.087 R)
• M7: 3,324,513 km (0.12 R)
• M8: 3,722,145 km (0.069 R)
• M9: 4,139,223 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.5

Radius: 10.1

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.76 AU - 3.6 AU

Year: 3720 Days

Day: 11.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,042,942 km

• M1: 127,308 km (0.075 R)
• M2: 524,191 km (0.12 R)
• M3: 1,697,188 km (0.067 R)
• M4: 3,446,735 km (0.073 R)
• M5: 4,294,057 km (0.065 R)
• M6: 5,695,490 km (0.115 R)
• M7: 6,253,041 km (0.106 R)
• M8: 7,740,044 km (0.118 R)
• M9: 8,284,580 km (0.089 R)
• M10: 8,781,844 km (0.095 R)
• M11: 9,641,882 km (0.12 R)
• M12: 11,099,414 km (0.059 R)
• M13: 12,239,799 km (0.103 R)
• M14: 14,700,983 km (0.049 R)
• M15: 18,772,438 km (0.05 R)
• M16: 21,959,023 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.7

Radius: 15

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.3 AU - 3.42 AU

Year: 4040 Days

Day: 5.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,042,942 km

• M1: 187,297 km (0.067 R)
• M2: 663,915 km (0.094 R)
• M3: 1,284,148 km (0.119 R)
• M4: 1,956,591 km (0.038 R)
• M5: 2,633,671 km (0.109 R)
• M6: 3,758,198 km (0.113 R)
• M7: 4,374,840 km (0.047 R)
• M8: 4,960,067 km (0.109 R)
• M9: 5,731,394 km (0.09 R)
• M10: 7,068,649 km (0.103 R)
• M11: 7,547,063 km (0.119 R)
• M12: 8,218,907 km (0.093 R)
• M13: 8,967,046 km (0.04 R)
• M14: 10,034,726 km (0.11 R)
• M15: 12,105,609 km (0.109 R)
• M16: 13,555,063 km (0.099 R)
• M17: 15,065,254 km (0.042 R)
• M18: 16,352,094 km (0.12 R)
• M19: 23,413,413 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.3

Radius: 13.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.01 AU - 4.89 AU

Year: 6158 Days

Day: 10.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,042,942 km

• M1: 172,038 km (0.107 R)
• M2: 602,281 km (0.089 R)
• M3: 1,033,272 km (0.062 R)
• M4: 1,541,905 km (0.097 R)
• M5: 2,044,554 km (0.092 R)
• M6: 2,657,008 km (0.1 R)
• M7: 3,710,326 km (0.052 R)
• M8: 4,466,244 km (0.087 R)
• M9: 5,262,554 km (0.111 R)
• M10: 6,597,266 km (0.053 R)
• M11: 7,709,377 km (0.079 R)
• M12: 8,351,600 km (0.099 R)
• M13: 9,029,428 km (0.032 R)
• M14: 9,471,490 km (0.025 R)
• M15: 15,402,896 km (0.1 R)
• M16: 16,228,975 km (0.068 R)
• M17: 21,977,124 km (0.047 R)
• M18: 24,188,779 km (0.043 R)
• M19: 25,044,479 km (0.047 R)
• M20: 28,105,251 km (0.067 R)
• M21: 29,920,173 km (0.026 R)
• M22: 31,913,863 km (0.103 R)
• M23: 32,528,860 km (0.079 R)
• M24: 33,782,640 km (0.113 R)
• M25: 37,170,433 km (0.072 R)
• M26: 38,080,288 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.2

Radius: 10.3

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.18 AU - 5.12 AU

Year: 6578 Days

Day: 13.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,042,942 km

• M1: 128,205 km (0.055 R)
• M2: 1,805,198 km (0.074 R)
• M3: 2,257,731 km (0.118 R)
• M4: 3,018,287 km (0.097 R)
• M5: 3,917,071 km (0.117 R)
• M6: 5,695,191 km (0.11 R)
• M7: 6,779,476 km (0.111 R)
• M8: 8,152,934 km (0.111 R)
• M9: 9,837,406 km (0.109 R)
• M10: 10,904,937 km (0.11 R)
• M11: 14,109,024 km (0.059 R)
• M12: 17,493,227 km (0.084 R)
• M13: 19,908,335 km (0.114 R)
• M14: 20,270,511 km (0.063 R)
• M15: 25,389,751 km (0.09 R)
• M16: 26,595,210 km (0.037 R)
• M17: 27,748,311 km (0.09 R)
• M18: 33,301,982 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900

Radius: 13.1

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.71 AU - 5.15 AU

Year: 7181 Days

Day: 13 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,042,942 km

• M1: 163,211 km (0.047 R)
• M2: 1,093,411 km (0.104 R)
• M3: 1,642,734 km (0.039 R)
• M4: 2,055,026 km (0.089 R)
• M5: 2,727,917 km (0.098 R)
• M6: 3,427,886 km (0.112 R)
• M7: 6,693,158 km (0.037 R)
• M8: 7,332,091 km (0.074 R)
• M9: 9,681,525 km (0.113 R)
• M10: 17,363,825 km (0.083 R)
• M11: 21,154,635 km (0.099 R)
• M12: 21,714,729 km (0.06 R)
• M13: 22,614,860 km (0.096 R)
• M14: 24,315,189 km (0.075 R)
• M15: 30,836,310 km (0.109 R)
• M16: 33,353,294 km (0.085 R)
• M17: 35,440,783 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959

Radius: 7.4

Gravity: 17.51 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 6.87 AU - 7.79 AU

Year: 13019 Days

Day: 18.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,042,942 km

• M1: 92,152 km (0.059 R)
• M2: 325,226 km (0.086 R)
• M3: 602,730 km (0.098 R)
• M4: 1,538,913 km (0.108 R)
• M5: 1,903,334 km (0.076 R)
• M6: 2,203,577 km (0.109 R)
• M7: 2,805,708 km (0.114 R)
• M8: 3,458,553 km (0.118 R)
• M9: 4,654,887 km (0.108 R)
• M10: 5,097,248 km (0.059 R)
• M11: 5,493,234 km (0.116 R)
• M12: 5,909,415 km (0.094 R)
• M13: 7,788,215 km (0.078 R)
• M14: 8,120,023 km (0.058 R)
• M15: 8,510,772 km (0.063 R)
• M16: 8,812,063 km (0.113 R)
• M17: 9,758,718 km (0.112 R)
• M18: 12,039,637 km (0.111 R)
• M19: 13,539,654 km (0.111 R)
• M20: 22,366,677 km (0.097 R)
• M21: 23,329,489 km (0.049 R)
• M22: 24,520,886 km (0.076 R)
• M23: 30,973,790 km (0.081 R)
• M24: 34,397,637 km (0.112 R)
• M25: 35,162,830 km (0.052 R)
• M26: 40,556,432 km (0.089 R)
• M27: 45,860,125 km (0.114 R)
• M28: 52,947,623 km (0.113 R)
• M29: 59,080,986 km (0.108 R)
• M30: 62,789,966 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 210.6

Radius: 3.3

Gravity: 19.34 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 8.38 AU - 10.64 AU

Year: 19239 Days

Day: 19 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,042,942 km

• M1: 41,139 km (0.059 R)
• M2: 145,858 km (0.101 R)
• M3: 552,016 km (0.053 R)
• M4: 740,958 km (0.103 R)
• M5: 899,682 km (0.03 R)
• M6: 1,186,461 km (0.114 R)
• M7: 1,633,908 km (0.058 R)
• M8: 2,006,257 km (0.077 R)
• M9: 3,052,993 km (0.033 R)
• M10: 3,387,345 km (0.096 R)
• M11: 5,710,300 km (0.093 R)
• M12: 6,216,540 km (0.106 R)
• M13: 7,071,641 km (0.097 R)
• M14: 7,958,308 km (0.1 R)
• M15: 8,405,605 km (0.075 R)
• M16: 8,964,054 km (0.073 R)
• M17: 10,051,481 km (0.038 R)
• M18: 10,154,554 km (0.034 R)
• M19: 11,168,678 km (0.093 R)
• M20: 12,543,931 km (0.106 R)
• M21: 13,210,240 km (0.063 R)
• M22: 13,963,764 km (0.082 R)
• M23: 14,221,222 km (0.109 R)
• M24: 16,183,049 km (0.08 R)
• M25: 19,492,603 km (0.083 R)
• M26: 20,385,253 km (0.048 R)
• M27: 29,046,820 km (0.097 R)
• M28: 30,424,467 km (0.069 R)
• M29: 31,293,481 km (0.11 R)
• M30: 33,999,856 km (0.057 R)
• M31: 43,455,189 km (0.096 R)
• M32: 45,959,308 km (0.06 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 16,744 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit