🌌 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: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.46 AU - 0.68 AU

Year: 278 Days

Day: 33.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.4

Radius: 10

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.68 AU - 1.14 AU

Year: 561 Days

Day: 8.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,055,383 km

• M1: 124,465 km (0.101 R)
• M2: 461,809 km (0.033 R)
• M3: 805,585 km (0.09 R)
• M4: 1,170,903 km (0.11 R)
• M5: 1,814,921 km (0.105 R)
• M6: 2,594,625 km (0.1 R)
• M7: 2,926,434 km (0.12 R)
• M8: 3,249,415 km (0.103 R)
• M9: 3,841,374 km (0.115 R)
• M10: 4,365,415 km (0.107 R)
• M11: 4,919,975 km (0.083 R)
• M12: 5,257,617 km (0.074 R)
• M13: 5,811,578 km (0.037 R)
• M14: 7,121,008 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.4

Radius: 8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.77 AU - 1.24 AU

Year: 646 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,055,383 km

• M1: 99,782 km (0.084 R)
• M2: 356,941 km (0.065 R)
• M3: 769,831 km (0.058 R)
• M4: 1,354,310 km (0.075 R)
• M5: 1,730,548 km (0.107 R)
• M6: 2,036,476 km (0.096 R)
• M7: 2,939,149 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.1

Radius: 10.9

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.86 AU - 2.5 AU

Year: 2078 Days

Day: 12.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,055,383 km

• M1: 135,984 km (0.064 R)
• M2: 509,979 km (0.091 R)
• M3: 1,025,643 km (0.067 R)
• M4: 1,595,760 km (0.057 R)
• M5: 2,070,734 km (0.083 R)
• M6: 2,569,493 km (0.096 R)
• M7: 3,068,701 km (0.03 R)
• M8: 3,773,905 km (0.078 R)
• M9: 5,483,061 km (0.099 R)
• M10: 7,060,421 km (0.054 R)
• M11: 8,856,344 km (0.071 R)
• M12: 9,416,288 km (0.113 R)
• M13: 12,173,676 km (0.112 R)
• M14: 13,413,693 km (0.029 R)
• M15: 16,337,883 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.1

Radius: 13.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.02 AU - 2.58 AU

Year: 2252 Days

Day: 9.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 90.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,055,383 km

• M1: 165,455 km (0.114 R)
• M2: 741,108 km (0.064 R)
• M3: 1,198,728 km (0.109 R)
• M4: 2,019,870 km (0.072 R)
• M5: 2,497,088 km (0.113 R)
• M6: 3,423,248 km (0.051 R)
• M7: 4,211,778 km (0.115 R)
• M8: 4,771,125 km (0.053 R)
• M9: 6,151,016 km (0.085 R)
• M10: 7,444,888 km (0.119 R)
• M11: 8,156,525 km (0.072 R)
• M12: 9,624,529 km (0.104 R)
• M13: 10,151,113 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.8

Radius: 12.7

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.18 AU - 2.6 AU

Year: 2386 Days

Day: 6 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,055,383 km

• M1: 157,975 km (0.098 R)
• M2: 566,527 km (0.113 R)
• M3: 1,152,951 km (0.083 R)
• M4: 1,902,735 km (0.12 R)
• M5: 2,354,670 km (0.12 R)
• M6: 2,786,260 km (0.099 R)
• M7: 3,444,641 km (0.12 R)
• M8: 4,164,356 km (0.094 R)
• M9: 5,726,008 km (0.102 R)
• M10: 7,110,088 km (0.093 R)
• M11: 9,393,549 km (0.11 R)
• M12: 10,644,786 km (0.087 R)
• M13: 11,230,761 km (0.095 R)
• M14: 12,725,543 km (0.079 R)
• M15: 13,341,437 km (0.079 R)
• M16: 14,490,499 km (0.095 R)
• M17: 15,358,017 km (0.079 R)
• M18: 15,804,566 km (0.037 R)
• M19: 17,732,135 km (0.101 R)
• M20: 18,223,863 km (0.098 R)
• M21: 18,780,816 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.1

Radius: 13.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.66 AU - 4.76 AU

Year: 6600 Days

Day: 14.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,055,383 km

• M1: 171,290 km (0.06 R)
• M2: 672,143 km (0.099 R)
• M3: 1,378,096 km (0.05 R)
• M4: 2,443,980 km (0.079 R)
• M5: 2,982,982 km (0.112 R)
• M6: 3,692,823 km (0.08 R)
• M7: 4,201,307 km (0.104 R)
• M8: 4,952,438 km (0.046 R)
• M9: 5,390,759 km (0.097 R)
• M10: 7,152,274 km (0.098 R)
• M11: 10,310,136 km (0.095 R)
• M12: 11,525,918 km (0.086 R)
• M13: 12,512,366 km (0.069 R)
• M14: 13,780,806 km (0.115 R)
• M15: 14,241,568 km (0.037 R)
• M16: 14,832,030 km (0.061 R)
• M17: 16,125,154 km (0.117 R)
• M18: 16,766,780 km (0.03 R)
• M19: 17,226,045 km (0.042 R)
• M20: 18,307,339 km (0.083 R)
• M21: 19,005,811 km (0.093 R)
• M22: 19,577,425 km (0.088 R)
• M23: 20,530,513 km (0.102 R)
• M24: 23,494,645 km (0.106 R)
• M25: 24,319,827 km (0.097 R)
• M26: 27,001,069 km (0.102 R)
• M27: 31,235,587 km (0.097 R)
• M28: 34,187,751 km (0.088 R)
• M29: 35,033,727 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448.2

Radius: 7.2

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.93 AU - 8.41 AU

Year: 12396 Days

Day: 20.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 52,055,383 km

• M1: 89,609 km (0.085 R)
• M2: 333,454 km (0.089 R)
• M3: 760,406 km (0.05 R)
• M4: 991,684 km (0.099 R)
• M5: 1,282,802 km (0.079 R)
• M6: 1,780,963 km (0.099 R)
• M7: 2,006,855 km (0.118 R)
• M8: 2,252,046 km (0.114 R)
• M9: 2,617,065 km (0.092 R)
• M10: 3,203,339 km (0.034 R)
• M11: 3,540,084 km (0.115 R)
• M12: 4,634,243 km (0.103 R)
• M13: 6,153,110 km (0.116 R)
• M14: 6,560,465 km (0.071 R)
• M15: 7,934,222 km (0.117 R)
• M16: 11,292,994 km (0.051 R)
• M17: 19,121,151 km (0.084 R)
• M18: 19,433,511 km (0.044 R)
• M19: 21,632,151 km (0.116 R)
• M20: 25,092,948 km (0.097 R)
• M21: 26,420,330 km (0.108 R)
• M22: 33,651,891 km (0.115 R)
• M23: 34,222,009 km (0.058 R)
• M24: 34,682,621 km (0.079 R)
• M25: 35,616,560 km (0.035 R)
• M26: 36,687,083 km (0.078 R)
• M27: 38,147,457 km (0.105 R)
• M28: 40,027,154 km (0.106 R)
• M29: 41,705,343 km (0.079 R)
• M30: 44,651,224 km (0.104 R)
• M31: 46,596,595 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463.9

Radius: 4.8

Gravity: 20.13 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 7.4 AU - 8.84 AU

Year: 14940 Days

Day: 20.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 52,055,383 km

• M1: 64,327 km (0.112 R)
• M2: 297,700 km (0.095 R)
• M3: 512,672 km (0.082 R)
• M4: 677,379 km (0.119 R)
• M5: 1,456,036 km (0.111 R)
• M6: 1,680,882 km (0.083 R)
• M7: 2,709,816 km (0.099 R)
• M8: 3,004,075 km (0.1 R)
• M9: 3,319,278 km (0.099 R)
• M10: 3,472,017 km (0.116 R)
• M11: 3,930,684 km (0.104 R)
• M12: 4,337,889 km (0.11 R)
• M13: 4,967,547 km (0.058 R)
• M14: 5,235,776 km (0.101 R)
• M15: 5,478,424 km (0.033 R)
• M16: 5,986,159 km (0.099 R)
• M17: 6,328,738 km (0.099 R)
• M18: 7,221,089 km (0.096 R)
• M19: 7,478,398 km (0.069 R)
• M20: 8,056,743 km (0.109 R)
• M21: 11,576,482 km (0.066 R)
• M22: 12,655,531 km (0.108 R)
• M23: 14,942,583 km (0.108 R)
• M24: 15,501,481 km (0.096 R)
• M25: 16,439,310 km (0.078 R)
• M26: 19,478,840 km (0.117 R)
• M27: 19,727,172 km (0.051 R)
• M28: 25,342,478 km (0.105 R)
• M29: 26,337,752 km (0.079 R)
• M30: 27,879,059 km (0.036 R)
• M31: 28,832,147 km (0.067 R)
• M32: 35,011,437 km (0.118 R)
• M33: 35,501,370 km (0.111 R)
• M34: 36,872,285 km (0.046 R)
• M35: 40,520,678 km (0.113 R)
• M36: 42,017,404 km (0.079 R)
• M37: 44,545,459 km (0.09 R)
• M38: 46,285,880 km (0.086 R)
• M39: 47,172,996 km (0.091 R)
• M40: 48,676,454 km (0.062 R)
• M41: 52,096,112 km (0.053 R)
• M42: 54,353,544 km (0.098 R)
• M43: 54,845,571 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.8

Radius: 6.6

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.94 AU - 9.68 AU

Year: 18342 Days

Day: 16.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,055,383 km

• M1: 82,279 km (0.097 R)
• M2: 290,968 km (0.076 R)
• M3: 523,293 km (0.05 R)
• M4: 782,696 km (0.063 R)
• M5: 1,038,359 km (0.091 R)
• M6: 2,568,147 km (0.059 R)
• M7: 3,188,828 km (0.109 R)
• M8: 4,360,180 km (0.098 R)
• M9: 4,662,068 km (0.052 R)
• M10: 6,048,092 km (0.097 R)
• M11: 7,139,858 km (0.063 R)
• M12: 7,517,143 km (0.11 R)
• M13: 10,327,938 km (0.09 R)
• M14: 13,579,298 km (0.099 R)
• M15: 16,641,417 km (0.079 R)
• M16: 16,934,030 km (0.116 R)
• M17: 31,663,437 km (0.064 R)
• M18: 32,680,852 km (0.043 R)
• M19: 41,216,457 km (0.119 R)
• M20: 46,352,751 km (0.112 R)
• M21: 49,299,081 km (0.112 R)
• M22: 50,206,691 km (0.088 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: 455 - 19,400 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit