🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.52 AU - 0.58 AU

Year: 259 Days

Day: 15.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.5

Radius: 10.6

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.65 AU - 1.03 AU

Year: 489 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,220,102 km

• M1: 131,796 km (0.111 R)
• M2: 747,541 km (0.102 R)
• M3: 1,158,486 km (0.037 R)
• M4: 1,862,493 km (0.096 R)
• M5: 2,356,466 km (0.103 R)
• M6: 4,409,696 km (0.086 R)
• M7: 4,755,567 km (0.068 R)
• M8: 5,135,246 km (0.076 R)
• M9: 5,518,665 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.4

Radius: 11.7

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.93 AU - 0.95 AU

Year: 579 Days

Day: 14.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 72 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,220,102 km

• M1: 145,708 km (0.103 R)
• M2: 579,991 km (0.111 R)
• M3: 1,040,752 km (0.077 R)
• M4: 1,417,739 km (0.076 R)
• M5: 1,994,140 km (0.094 R)
• M6: 2,375,913 km (0.062 R)
• M7: 2,860,162 km (0.053 R)
• M8: 3,242,683 km (0.068 R)
• M9: 3,659,463 km (0.063 R)
• M10: 4,381,123 km (0.091 R)
• M11: 4,955,280 km (0.115 R)
• M12: 5,460,322 km (0.058 R)
• M13: 5,839,403 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.4

Radius: 14.7

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.98 AU - 1.24 AU

Year: 744 Days

Day: 10.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,220,102 km

• M1: 182,809 km (0.086 R)
• M2: 761,902 km (0.082 R)
• M3: 1,261,110 km (0.093 R)
• M4: 1,952,701 km (0.055 R)
• M5: 2,660,000 km (0.118 R)
• M6: 3,305,365 km (0.099 R)
• M7: 4,184,552 km (0.078 R)
• M8: 5,929,312 km (0.078 R)
• M9: 6,547,300 km (0.044 R)
• M10: 7,059,823 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.6

Radius: 14.1

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5 AU - 5.06 AU

Year: 7173 Days

Day: 14.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,220,102 km

• M1: 179,069 km (0.1 R)
• M2: 638,783 km (0.108 R)
• M3: 1,270,385 km (0.082 R)
• M4: 2,181,436 km (0.066 R)
• M5: 2,746,019 km (0.111 R)
• M6: 3,696,563 km (0.092 R)
• M7: 4,249,028 km (0.099 R)
• M8: 5,521,657 km (0.082 R)
• M9: 6,181,384 km (0.097 R)
• M10: 6,684,332 km (0.097 R)
• M11: 8,360,427 km (0.111 R)
• M12: 9,492,134 km (0.052 R)
• M13: 10,255,682 km (0.113 R)
• M14: 11,059,920 km (0.098 R)
• M15: 12,318,487 km (0.083 R)
• M16: 14,469,854 km (0.108 R)
• M17: 16,540,887 km (0.1 R)
• M18: 18,049,581 km (0.116 R)
• M19: 20,445,541 km (0.09 R)
• M20: 21,643,521 km (0.12 R)
• M21: 22,729,601 km (0.113 R)
• M22: 23,446,773 km (0.025 R)
• M23: 24,015,096 km (0.059 R)
• M24: 25,348,462 km (0.117 R)
• M25: 26,033,321 km (0.084 R)
• M26: 27,529,898 km (0.054 R)
• M27: 28,897,372 km (0.103 R)
• M28: 31,081,501 km (0.055 R)
• M29: 32,064,658 km (0.1 R)
• M30: 34,093,056 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 910.6

Radius: 5.5

Gravity: 30.1 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.64 AU - 7.78 AU

Year: 11051 Days

Day: 17.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,220,102 km

• M1: 78,838 km (0.084 R)
• M2: 250,876 km (0.1 R)
• M3: 979,567 km (0.065 R)
• M4: 1,251,386 km (0.12 R)
• M5: 1,810,433 km (0.102 R)
• M6: 2,202,829 km (0.092 R)
• M7: 2,918,505 km (0.075 R)
• M8: 4,449,190 km (0.087 R)
• M9: 5,195,833 km (0.119 R)
• M10: 6,330,234 km (0.038 R)
• M11: 8,210,530 km (0.035 R)
• M12: 9,532,526 km (0.109 R)
• M13: 12,903,116 km (0.102 R)
• M14: 13,608,918 km (0.051 R)
• M15: 18,233,437 km (0.11 R)
• M16: 19,285,858 km (0.118 R)
• M17: 29,094,392 km (0.054 R)
• M18: 32,009,756 km (0.041 R)
• M19: 34,502,355 km (0.096 R)
• M20: 35,237,479 km (0.074 R)
• M21: 42,470,536 km (0.082 R)
• M22: 52,542,662 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 705.4

Radius: 7.5

Gravity: 12.54 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.61 AU - 6.93 AU

Year: 11200 Days

Day: 16.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 80,220,102 km

• M1: 93,349 km (0.098 R)
• M2: 344,823 km (0.117 R)
• M3: 582,833 km (0.076 R)
• M4: 1,286,841 km (0.097 R)
• M5: 1,737,579 km (0.085 R)
• M6: 2,000,124 km (0.075 R)
• M7: 2,366,040 km (0.076 R)
• M8: 2,627,238 km (0.12 R)
• M9: 3,256,297 km (0.069 R)
• M10: 3,871,742 km (0.111 R)
• M11: 5,066,730 km (0.086 R)
• M12: 6,001,418 km (0.089 R)
• M13: 6,451,857 km (0.108 R)
• M14: 8,905,561 km (0.087 R)
• M15: 10,741,127 km (0.091 R)
• M16: 12,999,307 km (0.105 R)
• M17: 15,906,592 km (0.111 R)
• M18: 18,430,308 km (0.11 R)
• M19: 18,743,865 km (0.076 R)
• M20: 20,615,634 km (0.106 R)
• M21: 21,814,212 km (0.117 R)
• M22: 22,430,555 km (0.039 R)
• M23: 24,068,801 km (0.111 R)
• M24: 26,773,232 km (0.116 R)
• M25: 29,888,757 km (0.094 R)
• M26: 32,207,973 km (0.087 R)
• M27: 34,407,510 km (0.115 R)
• M28: 40,274,589 km (0.105 R)
• M29: 45,765,429 km (0.073 R)
• M30: 46,484,995 km (0.098 R)
• M31: 48,988,216 km (0.077 R)
• M32: 50,654,886 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.7

Radius: 4.1

Gravity: 57.69 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.04 AU - 9.6 AU

Year: 13904 Days

Day: 15.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 80,220,102 km

• M1: 52,509 km (0.083 R)
• M2: 454,927 km (0.097 R)
• M3: 1,036,264 km (0.09 R)
• M4: 1,444,218 km (0.066 R)
• M5: 1,634,806 km (0.119 R)
• M6: 1,770,940 km (0.034 R)
• M7: 2,225,717 km (0.11 R)
• M8: 2,524,913 km (0.087 R)
• M9: 2,972,958 km (0.087 R)
• M10: 3,555,792 km (0.044 R)
• M11: 4,117,532 km (0.093 R)
• M12: 4,770,526 km (0.11 R)
• M13: 5,642,084 km (0.114 R)
• M14: 5,875,456 km (0.071 R)
• M15: 6,918,303 km (0.072 R)
• M16: 7,741,540 km (0.053 R)
• M17: 8,577,044 km (0.067 R)
• M18: 9,635,150 km (0.063 R)
• M19: 10,718,089 km (0.118 R)
• M20: 11,442,442 km (0.109 R)
• M21: 11,628,392 km (0.097 R)
• M22: 13,326,627 km (0.084 R)
• M23: 14,667,323 km (0.112 R)
• M24: 15,940,850 km (0.081 R)
• M25: 19,487,666 km (0.084 R)
• M26: 19,931,373 km (0.114 R)
• M27: 24,437,111 km (0.075 R)
• M28: 26,328,328 km (0.093 R)
• M29: 26,761,413 km (0.096 R)
• M30: 27,864,997 km (0.118 R)
• M31: 28,769,466 km (0.06 R)
• M32: 33,208,184 km (0.083 R)
• M33: 33,713,675 km (0.116 R)
• M34: 37,397,224 km (0.028 R)
• M35: 40,904,995 km (0.087 R)
• M36: 41,925,102 km (0.104 R)
• M37: 44,016,032 km (0.088 R)
• M38: 50,370,800 km (0.115 R)
• M39: 54,813,408 km (0.077 R)
• M40: 64,272,182 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.6

Radius: 6.6

Gravity: 19.73 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.29 AU - 11.19 AU

Year: 19327 Days

Day: 20.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 80,220,102 km

• M1: 82,129 km (0.108 R)
• M2: 380,577 km (0.041 R)
• M3: 1,069,924 km (0.068 R)
• M4: 1,539,960 km (0.115 R)
• M5: 1,822,551 km (0.038 R)
• M6: 2,056,821 km (0.101 R)
• M7: 2,492,600 km (0.045 R)
• M8: 3,149,185 km (0.118 R)
• M9: 4,514,265 km (0.075 R)
• M10: 4,946,304 km (0.114 R)
• M11: 5,605,283 km (0.071 R)
• M12: 7,049,201 km (0.089 R)
• M13: 8,035,949 km (0.082 R)
• M14: 9,801,802 km (0.101 R)
• M15: 12,216,461 km (0.04 R)
• M16: 12,491,721 km (0.117 R)
• M17: 12,983,450 km (0.119 R)
• M18: 15,001,375 km (0.106 R)
• M19: 16,793,109 km (0.037 R)
• M20: 17,828,326 km (0.079 R)
• M21: 22,498,772 km (0.117 R)
• M22: 23,226,266 km (0.115 R)
• M23: 25,840,040 km (0.114 R)
• M24: 33,085,364 km (0.115 R)
• M25: 37,819,987 km (0.079 R)
• M26: 39,894,162 km (0.083 R)
• M27: 44,429,520 km (0.03 R)
• M28: 44,754,297 km (0.066 R)
• M29: 48,261,919 km (0.039 R)
• M30: 54,693,879 km (0.12 R)
• M31: 62,078,479 km (0.117 R)
• M32: 66,219,497 km (0.052 R)
• M33: 70,983,142 km (0.098 R)
• M34: 72,770,388 km (0.057 R)
• M35: 74,358,818 km (0.081 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 17,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit