🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.54 AU - 0.68 AU

Year: 313 Days

Day: 35.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,205,639 km

• M1: 214,823 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 12.1

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.61 AU - 0.75 AU

Year: 368 Days

Day: 13.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,205,639 km

• M1: 150,495 km (0.045 R)
• M2: 637,586 km (0.103 R)
• M3: 1,430,006 km (0.094 R)
• M4: 1,851,573 km (0.118 R)
• M5: 2,669,424 km (0.073 R)
• M6: 3,127,343 km (0.11 R)
• M7: 3,507,472 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.3

Radius: 9.9

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.7 AU - 1.12 AU

Year: 569 Days

Day: 11.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,205,639 km

• M1: 123,119 km (0.042 R)
• M2: 529,726 km (0.116 R)
• M3: 884,871 km (0.11 R)
• M4: 1,346,231 km (0.059 R)
• M5: 1,767,050 km (0.093 R)
• M6: 2,320,413 km (0.055 R)
• M7: 3,799,188 km (0.114 R)
• M8: 4,486,889 km (0.108 R)
• M9: 5,452,244 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.8

Radius: 8.9

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.2 AU - 1.38 AU

Year: 961 Days

Day: 9.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,205,639 km

• M1: 110,702 km (0.088 R)
• M2: 389,852 km (0.101 R)
• M3: 804,089 km (0.091 R)
• M4: 1,459,626 km (0.067 R)
• M5: 1,751,641 km (0.115 R)
• M6: 2,083,001 km (0.095 R)
• M7: 2,540,321 km (0.08 R)
• M8: 2,885,444 km (0.09 R)
• M9: 3,299,830 km (0.093 R)
• M10: 3,684,147 km (0.112 R)
• M11: 4,370,801 km (0.057 R)
• M12: 4,753,024 km (0.1 R)
• M13: 5,088,572 km (0.034 R)
• M14: 6,694,654 km (0.05 R)
• M15: 7,095,577 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.1

Radius: 10

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.44 AU - 1.85 AU

Year: 1378 Days

Day: 7.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,205,639 km

• M1: 129,402 km (0.071 R)
• M2: 456,872 km (0.096 R)
• M3: 769,980 km (0.036 R)
• M4: 1,410,110 km (0.119 R)
• M5: 1,842,747 km (0.045 R)
• M6: 2,175,602 km (0.056 R)
• M7: 2,510,851 km (0.108 R)
• M8: 3,035,939 km (0.098 R)
• M9: 3,425,791 km (0.05 R)
• M10: 3,781,535 km (0.101 R)
• M11: 4,269,972 km (0.06 R)
• M12: 4,959,618 km (0.048 R)
• M13: 5,416,640 km (0.117 R)
• M14: 6,131,269 km (0.102 R)
• M15: 7,293,345 km (0.115 R)
• M16: 7,612,288 km (0.089 R)
• M17: 7,940,505 km (0.072 R)
• M18: 8,306,871 km (0.06 R)
• M19: 11,091,635 km (0.092 R)
• M20: 11,947,634 km (0.118 R)
• M21: 12,770,572 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.8

Radius: 13.9

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.5 AU - 2.1 AU

Year: 1584 Days

Day: 8.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,205,639 km

• M1: 172,935 km (0.083 R)
• M2: 612,154 km (0.065 R)
• M3: 1,072,916 km (0.099 R)
• M4: 1,631,814 km (0.05 R)
• M5: 2,133,116 km (0.098 R)
• M6: 2,779,229 km (0.119 R)
• M7: 3,359,220 km (0.094 R)
• M8: 4,183,804 km (0.069 R)
• M9: 4,805,682 km (0.066 R)
• M10: 5,556,215 km (0.117 R)
• M11: 6,433,456 km (0.118 R)
• M12: 7,050,548 km (0.11 R)
• M13: 8,798,449 km (0.105 R)
• M14: 10,434,152 km (0.071 R)
• M15: 10,926,628 km (0.037 R)
• M16: 11,361,061 km (0.111 R)
• M17: 11,920,407 km (0.094 R)
• M18: 14,003,258 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.6

Radius: 3.3

Gravity: 36.79 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.61 AU - 8.77 AU

Year: 15376 Days

Day: 24 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 90,205,639 km

• M1: 41,289 km (0.104 R)
• M2: 145,260 km (0.073 R)
• M3: 461,509 km (0.059 R)
• M4: 601,533 km (0.04 R)
• M5: 894,894 km (0.073 R)
• M6: 1,011,730 km (0.093 R)
• M7: 1,212,341 km (0.115 R)
• M8: 1,600,099 km (0.106 R)
• M9: 1,889,720 km (0.102 R)
• M10: 2,047,097 km (0.074 R)
• M11: 3,938,014 km (0.041 R)
• M12: 4,224,494 km (0.109 R)
• M13: 5,545,443 km (0.091 R)
• M14: 5,651,808 km (0.1 R)
• M15: 6,631,075 km (0.114 R)
• M16: 7,329,248 km (0.116 R)
• M17: 10,290,987 km (0.08 R)
• M18: 13,067,823 km (0.101 R)
• M19: 13,446,605 km (0.083 R)
• M20: 15,242,078 km (0.103 R)
• M21: 16,450,979 km (0.117 R)
• M22: 17,493,377 km (0.089 R)
• M23: 18,579,008 km (0.09 R)
• M24: 20,627,901 km (0.096 R)
• M25: 20,797,994 km (0.104 R)
• M26: 22,461,372 km (0.066 R)
• M27: 23,004,562 km (0.056 R)
• M28: 23,371,376 km (0.109 R)
• M29: 29,245,935 km (0.119 R)
• M30: 30,771,384 km (0.093 R)
• M31: 34,097,992 km (0.063 R)
• M32: 36,775,944 km (0.1 R)
• M33: 40,249,756 km (0.106 R)
• M34: 42,271,122 km (0.085 R)
• M35: 43,655,651 km (0.053 R)
• M36: 43,795,674 km (0.048 R)
• M37: 44,642,548 km (0.101 R)
• M38: 44,927,233 km (0.099 R)
• M39: 46,514,616 km (0.088 R)
• M40: 47,248,393 km (0.106 R)
• M41: 49,648,392 km (0.063 R)
• M42: 51,344,682 km (0.07 R)
• M43: 53,238,741 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 707.3

Radius: 3.2

Gravity: 69.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.7 AU - 10.1 AU

Year: 15971 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 90,205,639 km

• M1: 42,635 km (0.107 R)
• M2: 145,708 km (0.084 R)
• M3: 359,184 km (0.08 R)
• M4: 508,034 km (0.098 R)
• M5: 679,025 km (0.114 R)
• M6: 813,663 km (0.073 R)
• M7: 1,073,514 km (0.077 R)
• M8: 1,215,931 km (0.068 R)
• M9: 1,843,943 km (0.111 R)
• M10: 2,353,025 km (0.108 R)
• M11: 2,803,913 km (0.059 R)
• M12: 3,363,708 km (0.099 R)
• M13: 3,528,415 km (0.077 R)
• M14: 3,727,530 km (0.117 R)
• M15: 4,210,582 km (0.118 R)
• M16: 4,337,590 km (0.075 R)
• M17: 4,467,142 km (0.081 R)
• M18: 5,948,460 km (0.096 R)
• M19: 6,605,793 km (0.087 R)
• M20: 6,734,298 km (0.117 R)
• M21: 8,210,380 km (0.087 R)
• M22: 10,170,112 km (0.098 R)
• M23: 11,471,913 km (0.083 R)
• M24: 14,616,909 km (0.037 R)
• M25: 15,129,730 km (0.096 R)
• M26: 15,428,028 km (0.099 R)
• M27: 16,424,649 km (0.113 R)
• M28: 16,581,578 km (0.084 R)
• M29: 17,544,988 km (0.097 R)
• M30: 18,972,750 km (0.09 R)
• M31: 20,025,919 km (0.098 R)
• M32: 26,847,432 km (0.066 R)
• M33: 27,174,752 km (0.047 R)
• M34: 28,397,865 km (0.039 R)
• M35: 31,313,228 km (0.053 R)
• M36: 32,533,049 km (0.041 R)
• M37: 32,656,766 km (0.105 R)
• M38: 33,784,286 km (0.078 R)
• M39: 43,303,198 km (0.109 R)
• M40: 45,895,430 km (0.065 R)
• M41: 46,363,222 km (0.101 R)
• M42: 49,892,236 km (0.038 R)
• M43: 51,051,470 km (0.059 R)
• M44: 51,721,968 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.5

Radius: 7.9

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.6 AU - 10.88 AU

Year: 19941 Days

Day: 16.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,205,639 km

• M1: 99,333 km (0.08 R)
• M2: 352,303 km (0.108 R)
• M3: 988,842 km (0.102 R)
• M4: 1,763,908 km (0.067 R)
• M5: 2,821,715 km (0.031 R)
• M6: 3,245,825 km (0.086 R)
• M7: 4,066,968 km (0.062 R)
• M8: 6,912,170 km (0.079 R)
• M9: 7,405,244 km (0.111 R)
• M10: 8,017,698 km (0.106 R)
• M11: 8,765,986 km (0.12 R)
• M12: 12,293,803 km (0.11 R)
• M13: 12,751,124 km (0.112 R)
• M14: 14,120,244 km (0.104 R)
• M15: 14,621,845 km (0.097 R)
• M16: 15,660,653 km (0.094 R)
• M17: 20,765,830 km (0.113 R)
• M18: 21,602,381 km (0.1 R)
• M19: 25,383,468 km (0.071 R)
• M20: 28,663,401 km (0.077 R)
• M21: 29,236,211 km (0.112 R)
• M22: 32,834,489 km (0.06 R)
• M23: 33,588,013 km (0.051 R)
• M24: 34,739,767 km (0.037 R)
• M25: 37,393,185 km (0.053 R)
• M26: 37,665,752 km (0.102 R)
• M27: 38,077,146 km (0.092 R)
• M28: 41,330,750 km (0.083 R)
• M29: 47,741,916 km (0.076 R)
• M30: 49,524,375 km (0.114 R)
• M31: 51,350,666 km (0.045 R)
• M32: 57,459,944 km (0.081 R)
• M33: 58,921,365 km (0.084 R)
• M34: 62,491,070 km (0.095 R)
• M35: 63,260,601 km (0.098 R)
• M36: 65,606,894 km (0.053 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 851.6

Radius: 4.1

Gravity: 50.66 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.54 AU - 10.98 AU

Year: 23154 Days

Day: 16.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 90,205,639 km

• M1: 54,005 km (0.075 R)
• M2: 206,744 km (0.066 R)
• M3: 603,478 km (0.079 R)
• M4: 1,344,586 km (0.096 R)
• M5: 2,534,188 km (0.063 R)
• M6: 3,174,467 km (0.067 R)
• M7: 15,463,334 km (0.032 R)
• M8: 16,053,796 km (0.077 R)
• M9: 17,641,179 km (0.038 R)
• M10: 19,137,457 km (0.041 R)
• M11: 19,719,842 km (0.058 R)
• M12: 22,701,477 km (0.07 R)
• M13: 24,242,784 km (0.106 R)
• M14: 25,970,041 km (0.082 R)
• M15: 28,523,676 km (0.032 R)
• M16: 34,549,329 km (0.094 R)
• M17: 37,029,961 km (0.11 R)
• M18: 40,571,391 km (0.116 R)
• M19: 41,854,343 km (0.116 R)
• M20: 42,505,841 km (0.097 R)
• M21: 46,905,964 km (0.099 R)
• M22: 55,612,859 km (0.079 R)
• M23: 62,330,402 km (0.072 R)
• M24: 67,541,943 km (0.09 R)
• M25: 68,888,772 km (0.088 R)
• M26: 78,327,800 km (0.03 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 19,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit