🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.2

Radius: 13.8

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.54 AU - 0.56 AU

Year: 287 Days

Day: 14.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,426,514 km

• M1: 171,589 km (0.104 R)
• M2: 608,863 km (0.091 R)
• M3: 1,320,201 km (0.103 R)
• M4: 2,305,602 km (0.096 R)
• M5: 3,184,789 km (0.057 R)
• M6: 3,736,656 km (0.116 R)
• M7: 4,167,647 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.2

Radius: 10.6

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.46 AU - 0.7 AU

Year: 310 Days

Day: 10 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,426,514 km

• M1: 131,796 km (0.117 R)
• M2: 487,539 km (0.106 R)
• M3: 911,649 km (0.082 R)
• M4: 1,251,985 km (0.119 R)
• M5: 1,721,423 km (0.058 R)
• M6: 2,144,635 km (0.109 R)
• M7: 2,486,167 km (0.081 R)
• M8: 3,203,489 km (0.062 R)
• M9: 3,653,180 km (0.059 R)
• M10: 4,144,759 km (0.105 R)
• M11: 4,496,613 km (0.03 R)
• M12: 5,214,533 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.4

Radius: 13.1

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.67 AU - 1.07 AU

Year: 570 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,426,514 km

• M1: 163,361 km (0.097 R)
• M2: 779,704 km (0.111 R)
• M3: 1,201,271 km (0.102 R)
• M4: 2,287,800 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.6

Radius: 13.7

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.81 AU - 1.21 AU

Year: 713 Days

Day: 13.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,426,514 km

• M1: 170,392 km (0.11 R)
• M2: 660,026 km (0.102 R)
• M3: 1,112,859 km (0.045 R)
• M4: 1,855,612 km (0.073 R)
• M5: 2,424,383 km (0.089 R)
• M6: 2,889,333 km (0.09 R)
• M7: 3,754,009 km (0.099 R)
• M8: 4,411,940 km (0.099 R)
• M9: 4,849,365 km (0.11 R)
• M10: 5,595,708 km (0.078 R)
• M11: 6,878,510 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.6

Radius: 12.3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.14 AU - 1.7 AU

Year: 1189 Days

Day: 12.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,426,514 km

• M1: 153,039 km (0.063 R)
• M2: 594,801 km (0.062 R)
• M3: 1,311,674 km (0.042 R)
• M4: 1,773,782 km (0.089 R)
• M5: 2,159,445 km (0.054 R)
• M6: 2,775,041 km (0.117 R)
• M7: 3,343,812 km (0.097 R)
• M8: 4,188,740 km (0.09 R)
• M9: 5,449,402 km (0.063 R)
• M10: 6,080,106 km (0.055 R)
• M11: 7,165,888 km (0.056 R)
• M12: 8,268,574 km (0.093 R)
• M13: 9,629,615 km (0.115 R)
• M14: 10,841,358 km (0.046 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.6

Radius: 7.6

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 5.68 AU - 8.42 AU

Year: 13158 Days

Day: 18.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 55,426,514 km

• M1: 232,774 km (0.12 R)
• M2: 499,208 km (0.097 R)
• M3: 819,048 km (0.075 R)
• M4: 1,140,684 km (0.113 R)
• M5: 1,939,387 km (0.117 R)
• M6: 2,263,266 km (0.108 R)
• M7: 3,585,861 km (0.115 R)
• M8: 4,548,822 km (0.058 R)
• M9: 5,090,367 km (0.099 R)
• M10: 5,428,608 km (0.106 R)
• M11: 6,852,779 km (0.109 R)
• M12: 7,265,520 km (0.055 R)
• M13: 7,826,961 km (0.045 R)
• M14: 8,232,221 km (0.041 R)
• M15: 9,133,848 km (0.076 R)
• M16: 9,839,202 km (0.105 R)
• M17: 11,132,176 km (0.109 R)
• M18: 11,587,253 km (0.108 R)
• M19: 14,582,800 km (0.093 R)
• M20: 16,844,271 km (0.093 R)
• M21: 18,370,768 km (0.102 R)
• M22: 19,574,433 km (0.08 R)
• M23: 21,346,868 km (0.113 R)
• M24: 22,138,241 km (0.069 R)
• M25: 22,767,150 km (0.087 R)
• M26: 24,060,723 km (0.076 R)
• M27: 24,917,769 km (0.102 R)
• M28: 25,696,426 km (0.063 R)
• M29: 29,726,443 km (0.108 R)
• M30: 31,382,641 km (0.105 R)
• M31: 34,516,866 km (0.062 R)
• M32: 35,362,393 km (0.108 R)
• M33: 36,469,567 km (0.026 R)
• M34: 40,061,711 km (0.096 R)
• M35: 40,995,352 km (0.115 R)
• M36: 45,161,054 km (0.119 R)
• M37: 46,903,570 km (0.117 R)
• M38: 47,940,433 km (0.109 R)
• M39: 50,831,711 km (0.077 R)
• M40: 52,240,923 km (0.1 R)
• M41: 52,716,494 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.7

Radius: 7.4

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 7.74 AU - 8.58 AU

Year: 16385 Days

Day: 20.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,426,514 km

• M1: 92,003 km (0.045 R)
• M2: 624,571 km (0.116 R)
• M3: 891,155 km (0.065 R)
• M4: 1,222,215 km (0.099 R)
• M5: 1,515,726 km (0.084 R)
• M6: 3,315,538 km (0.113 R)
• M7: 3,596,034 km (0.049 R)
• M8: 3,864,861 km (0.058 R)
• M9: 4,382,619 km (0.045 R)
• M10: 9,182,616 km (0.086 R)
• M11: 9,432,445 km (0.114 R)
• M12: 9,789,685 km (0.068 R)
• M13: 11,083,407 km (0.066 R)
• M14: 14,337,610 km (0.061 R)
• M15: 16,000,988 km (0.073 R)
• M16: 16,436,168 km (0.041 R)
• M17: 16,804,778 km (0.064 R)
• M18: 19,052,785 km (0.037 R)
• M19: 27,088,883 km (0.096 R)
• M20: 32,071,390 km (0.106 R)
• M21: 34,057,451 km (0.075 R)
• M22: 35,507,653 km (0.1 R)
• M23: 38,531,026 km (0.089 R)
• M24: 43,380,989 km (0.095 R)
• M25: 46,097,686 km (0.095 R)
• M26: 50,926,107 km (0.079 R)
• M27: 51,867,527 km (0.101 R)
• M28: 53,462,090 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.2

Radius: 4.2

Gravity: 30 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.05 AU - 9.61 AU

Year: 18444 Days

Day: 23.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,426,514 km

• M1: 58,194 km (0.08 R)
• M2: 484,398 km (0.049 R)
• M3: 736,919 km (0.109 R)
• M4: 1,518,718 km (0.051 R)
• M5: 1,836,763 km (0.084 R)
• M6: 2,098,409 km (0.093 R)
• M7: 2,604,499 km (0.056 R)
• M8: 2,934,961 km (0.115 R)
• M9: 3,239,841 km (0.119 R)
• M10: 3,482,190 km (0.068 R)
• M11: 3,883,112 km (0.095 R)
• M12: 4,219,109 km (0.04 R)
• M13: 4,948,997 km (0.119 R)
• M14: 7,002,377 km (0.11 R)
• M15: 8,975,423 km (0.032 R)
• M16: 13,557,756 km (0.104 R)
• M17: 21,483,002 km (0.11 R)
• M18: 22,240,416 km (0.103 R)
• M19: 27,271,991 km (0.09 R)
• M20: 29,066,268 km (0.116 R)
• M21: 33,387,702 km (0.106 R)
• M22: 34,019,753 km (0.086 R)
• M23: 34,402,873 km (0.107 R)
• M24: 40,356,718 km (0.109 R)
• M25: 41,799,590 km (0.118 R)
• M26: 51,855,708 km (0.105 R)
• M27: 54,077,985 km (0.093 R)
• M28: 56,007,348 km (0.097 R)
• M29: 56,362,943 km (0.041 R)
• M30: 61,312,687 km (0.105 R)
• M31: 61,501,330 km (0.104 R)
• M32: 62,641,715 km (0.074 R)
• M33: 66,146,942 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 250.8

Radius: 3.1

Gravity: 26.1 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.41 AU - 9.57 AU

Year: 20550 Days

Day: 21.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,426,514 km

• M1: 38,596 km (0.099 R)
• M2: 141,669 km (0.094 R)
• M3: 424,559 km (0.054 R)
• M4: 573,857 km (0.118 R)
• M5: 823,536 km (0.098 R)
• M6: 978,669 km (0.11 R)
• M7: 1,140,983 km (0.119 R)
• M8: 1,519,166 km (0.059 R)
• M9: 2,665,984 km (0.096 R)
• M10: 4,886,614 km (0.046 R)
• M11: 6,594,873 km (0.077 R)
• M12: 6,961,986 km (0.11 R)
• M13: 7,299,778 km (0.091 R)
• M14: 9,054,112 km (0.037 R)
• M15: 9,713,539 km (0.082 R)
• M16: 11,241,382 km (0.115 R)
• M17: 18,392,609 km (0.095 R)
• M18: 25,324,975 km (0.106 R)
• M19: 26,627,523 km (0.072 R)
• M20: 34,657,488 km (0.085 R)
• M21: 36,637,566 km (0.055 R)
• M22: 37,271,561 km (0.111 R)
• M23: 38,561,245 km (0.039 R)
• M24: 50,746,141 km (0.097 R)
• M25: 52,169,265 km (0.11 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 15,597 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit