🌌 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: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.5 AU - 0.64 AU

Year: 282 Days

Day: 15.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,551,991 km

• M1: 560,394 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.9

Radius: 14.8

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.72 AU - 0.82 AU

Year: 443 Days

Day: 7.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,551,991 km

• M1: 184,005 km (0.108 R)
• M2: 809,175 km (0.057 R)
• M3: 1,407,866 km (0.098 R)
• M4: 2,061,010 km (0.09 R)
• M5: 3,157,712 km (0.119 R)
• M6: 3,832,099 km (0.118 R)
• M7: 4,386,509 km (0.119 R)
• M8: 4,994,624 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.9

Radius: 10.1

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.88 AU - 0.94 AU

Year: 569 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,551,991 km

• M1: 125,662 km (0.117 R)
• M2: 471,981 km (0.092 R)
• M3: 861,684 km (0.045 R)
• M4: 1,227,750 km (0.085 R)
• M5: 1,624,334 km (0.045 R)
• M6: 1,969,007 km (0.119 R)
• M7: 2,296,776 km (0.081 R)
• M8: 2,734,350 km (0.044 R)
• M9: 3,396,171 km (0.108 R)
• M10: 4,203,999 km (0.047 R)
• M11: 4,600,284 km (0.034 R)
• M12: 4,941,517 km (0.098 R)
• M13: 5,923,477 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.4

Radius: 8.4

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.91 AU - 1.21 AU

Year: 716 Days

Day: 9.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,551,991 km

• M1: 104,868 km (0.094 R)
• M2: 477,367 km (0.108 R)
• M3: 830,567 km (0.092 R)
• M4: 1,329,476 km (0.073 R)
• M5: 2,231,103 km (0.091 R)
• M6: 2,523,417 km (0.083 R)
• M7: 2,852,831 km (0.076 R)
• M8: 3,235,802 km (0.107 R)
• M9: 3,917,071 km (0.078 R)
• M10: 4,299,592 km (0.109 R)
• M11: 5,020,505 km (0.086 R)
• M12: 5,365,776 km (0.118 R)
• M13: 7,467,776 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.6

Radius: 8.7

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.93 AU - 1.99 AU

Year: 1800 Days

Day: 9.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,551,991 km

• M1: 109,206 km (0.103 R)
• M2: 642,074 km (0.042 R)
• M3: 961,017 km (0.111 R)
• M4: 1,256,473 km (0.112 R)
• M5: 1,855,612 km (0.083 R)
• M6: 2,133,266 km (0.074 R)
• M7: 2,972,809 km (0.056 R)
• M8: 3,868,601 km (0.118 R)
• M9: 4,221,353 km (0.068 R)
• M10: 4,762,747 km (0.031 R)
• M11: 5,148,860 km (0.111 R)
• M12: 5,745,755 km (0.046 R)
• M13: 6,906,335 km (0.097 R)
• M14: 9,960,825 km (0.073 R)
• M15: 11,421,947 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824

Radius: 9.7

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.41 AU - 2.91 AU

Year: 2846 Days

Day: 5.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 175.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,551,991 km

• M1: 131,497 km (0.119 R)
• M2: 566,976 km (0.045 R)
• M3: 1,005,746 km (0.08 R)
• M4: 1,324,240 km (0.106 R)
• M5: 1,688,511 km (0.088 R)
• M6: 2,014,784 km (0.109 R)
• M7: 2,456,696 km (0.077 R)
• M8: 3,013,350 km (0.097 R)
• M9: 3,790,062 km (0.076 R)
• M10: 4,312,607 km (0.075 R)
• M11: 4,671,792 km (0.117 R)
• M12: 5,026,488 km (0.12 R)
• M13: 5,790,485 km (0.089 R)
• M14: 6,513,491 km (0.088 R)
• M15: 7,389,536 km (0.106 R)
• M16: 8,830,613 km (0.094 R)
• M17: 9,264,147 km (0.117 R)
• M18: 10,213,196 km (0.067 R)
• M19: 11,393,823 km (0.087 R)
• M20: 12,572,803 km (0.077 R)
• M21: 13,975,882 km (0.107 R)
• M22: 14,515,631 km (0.086 R)
• M23: 15,689,077 km (0.09 R)
• M24: 16,541,934 km (0.03 R)
• M25: 16,979,807 km (0.111 R)
• M26: 17,313,410 km (0.097 R)
• M27: 18,632,415 km (0.108 R)
• M28: 19,710,417 km (0.107 R)
• M29: 21,020,146 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222

Radius: 4

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.97 AU - 7.01 AU

Year: 10846 Days

Day: 21.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,551,991 km

• M1: 49,816 km (0.034 R)
• M2: 248,781 km (0.112 R)
• M3: 732,880 km (0.083 R)
• M4: 905,067 km (0.087 R)
• M5: 1,576,462 km (0.061 R)
• M6: 2,205,073 km (0.071 R)
• M7: 2,512,496 km (0.101 R)
• M8: 2,809,149 km (0.054 R)
• M9: 3,630,142 km (0.054 R)
• M10: 4,818,099 km (0.112 R)
• M11: 6,047,344 km (0.076 R)
• M12: 6,177,494 km (0.114 R)
• M13: 6,545,056 km (0.053 R)
• M14: 8,162,359 km (0.072 R)
• M15: 11,500,935 km (0.059 R)
• M16: 13,662,624 km (0.063 R)
• M17: 16,774,708 km (0.059 R)
• M18: 19,966,529 km (0.075 R)
• M19: 20,401,110 km (0.077 R)
• M20: 22,825,643 km (0.069 R)
• M21: 28,419,257 km (0.071 R)
• M22: 33,319,335 km (0.066 R)
• M23: 33,827,968 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.6

Radius: 7.3

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.42 AU - 8.28 AU

Year: 13072 Days

Day: 22.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,551,991 km

• M1: 90,806 km (0.066 R)
• M2: 419,921 km (0.103 R)
• M3: 671,994 km (0.049 R)
• M4: 1,609,823 km (0.1 R)
• M5: 1,997,580 km (0.059 R)
• M6: 2,428,572 km (0.063 R)
• M7: 3,319,427 km (0.109 R)
• M8: 4,202,204 km (0.093 R)
• M9: 5,262,703 km (0.077 R)
• M10: 5,727,055 km (0.078 R)
• M11: 7,901,161 km (0.108 R)
• M12: 10,815,477 km (0.083 R)
• M13: 11,211,463 km (0.071 R)
• M14: 13,908,862 km (0.109 R)
• M15: 15,972,265 km (0.088 R)
• M16: 16,356,433 km (0.057 R)
• M17: 22,884,585 km (0.086 R)
• M18: 24,118,767 km (0.105 R)
• M19: 26,629,319 km (0.107 R)
• M20: 30,175,835 km (0.086 R)
• M21: 32,061,816 km (0.116 R)
• M22: 35,848,287 km (0.083 R)
• M23: 36,728,521 km (0.095 R)
• M24: 37,510,320 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202

Radius: 6

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.82 AU - 10.34 AU

Year: 16487 Days

Day: 18.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,551,991 km

• M1: 75,846 km (0.038 R)
• M2: 446,400 km (0.097 R)
• M3: 794,514 km (0.107 R)
• M4: 1,239,119 km (0.073 R)
• M5: 1,600,548 km (0.112 R)
• M6: 2,611,380 km (0.098 R)
• M7: 2,835,029 km (0.037 R)
• M8: 3,160,704 km (0.09 R)
• M9: 3,887,001 km (0.107 R)
• M10: 4,289,420 km (0.066 R)
• M11: 4,838,594 km (0.092 R)
• M12: 5,731,693 km (0.079 R)
• M13: 6,110,923 km (0.104 R)
• M14: 6,433,606 km (0.073 R)
• M15: 6,767,658 km (0.115 R)
• M16: 7,349,893 km (0.078 R)
• M17: 7,797,639 km (0.088 R)
• M18: 8,007,076 km (0.109 R)
• M19: 14,113,362 km (0.074 R)
• M20: 27,277,077 km (0.115 R)
• M21: 27,760,578 km (0.066 R)
• M22: 30,574,065 km (0.086 R)
• M23: 31,942,586 km (0.119 R)
• M24: 32,156,661 km (0.104 R)
• M25: 37,349,801 km (0.041 R)
• M26: 39,279,614 km (0.09 R)
• M27: 44,259,876 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.2

Radius: 3.1

Gravity: 59.65 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 8.77 AU - 13.43 AU

Year: 24260 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 81,551,991 km

• M1: 38,596 km (0.04 R)
• M2: 147,055 km (0.108 R)
• M3: 391,498 km (0.113 R)
• M4: 624,571 km (0.083 R)
• M5: 751,131 km (0.083 R)
• M6: 860,038 km (0.102 R)
• M7: 1,151,305 km (0.096 R)
• M8: 1,312,273 km (0.055 R)
• M9: 1,422,227 km (0.104 R)
• M10: 1,555,519 km (0.078 R)
• M11: 2,131,171 km (0.096 R)
• M12: 2,610,632 km (0.039 R)
• M13: 2,709,517 km (0.109 R)
• M14: 3,905,402 km (0.077 R)
• M15: 4,948,548 km (0.089 R)
• M16: 6,701,985 km (0.098 R)
• M17: 8,287,273 km (0.105 R)
• M18: 8,555,652 km (0.069 R)
• M19: 10,227,707 km (0.093 R)
• M20: 10,474,245 km (0.084 R)
• M21: 11,901,259 km (0.079 R)
• M22: 15,860,665 km (0.082 R)
• M23: 18,814,924 km (0.119 R)
• M24: 21,911,600 km (0.088 R)
• M25: 23,794,289 km (0.111 R)
• M26: 27,167,273 km (0.056 R)
• M27: 27,878,012 km (0.063 R)
• M28: 28,237,944 km (0.094 R)
• M29: 28,844,863 km (0.108 R)
• M30: 30,336,653 km (0.104 R)
• M31: 32,272,749 km (0.057 R)
• M32: 33,608,358 km (0.043 R)
• M33: 34,702,816 km (0.101 R)
• M34: 42,560,893 km (0.093 R)
• M35: 44,491,005 km (0.111 R)
• M36: 53,161,997 km (0.088 R)
• M37: 57,891,234 km (0.076 R)
• M38: 61,060,615 km (0.119 R)
• M39: 66,667,693 km (0.088 R)
• M40: 66,881,618 km (0.103 R)
• M41: 74,894,828 km (0.075 R)
• M42: 77,938,695 km (0.097 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: 161 - 18,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit