🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.51 AU - 0.51 AU

Year: 235 Days

Day: 45.5 Hours

Environment

Temp: -112 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,463,438 km

• M1: 72,854 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.48 AU - 0.62 AU

Year: 263 Days

Day: 43.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,463,438 km

• M1: 263,292 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.2

Radius: 8

Gravity: 12.58 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.6 AU - 0.92 AU

Year: 428 Days

Day: 9.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,463,438 km

• M1: 99,483 km (0.107 R)
• M2: 376,538 km (0.111 R)
• M3: 646,861 km (0.069 R)
• M4: 975,378 km (0.078 R)
• M5: 1,293,573 km (0.07 R)
• M6: 1,585,887 km (0.049 R)
• M7: 1,897,948 km (0.056 R)
• M8: 2,152,115 km (0.059 R)
• M9: 2,536,731 km (0.099 R)
• M10: 2,803,763 km (0.075 R)
• M11: 3,055,836 km (0.074 R)
• M12: 3,746,828 km (0.07 R)
• M13: 4,108,556 km (0.082 R)
• M14: 4,522,942 km (0.096 R)
• M15: 5,253,728 km (0.101 R)
• M16: 5,553,522 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.5

Radius: 8.7

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.21 AU - 1.71 AU

Year: 1139 Days

Day: 9.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,463,438 km

• M1: 108,159 km (0.117 R)
• M2: 421,567 km (0.11 R)
• M3: 972,835 km (0.086 R)
• M4: 1,467,256 km (0.049 R)
• M5: 1,951,803 km (0.112 R)
• M6: 2,335,522 km (0.105 R)
• M7: 2,769,057 km (0.066 R)
• M8: 3,299,830 km (0.076 R)
• M9: 3,605,458 km (0.088 R)
• M10: 4,526,981 km (0.115 R)
• M11: 4,886,166 km (0.111 R)
• M12: 6,307,046 km (0.083 R)
• M13: 6,588,141 km (0.069 R)
• M14: 7,200,594 km (0.116 R)
• M15: 8,176,122 km (0.089 R)
• M16: 9,326,978 km (0.07 R)
• M17: 10,879,804 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294

Radius: 10.5

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.95 AU - 3.33 AU

Year: 3593 Days

Day: 8.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,463,438 km

• M1: 130,599 km (0.084 R)
• M2: 524,640 km (0.051 R)
• M3: 942,167 km (0.053 R)
• M4: 1,446,013 km (0.103 R)
• M5: 2,162,138 km (0.108 R)
• M6: 2,652,071 km (0.095 R)
• M7: 3,265,572 km (0.113 R)
• M8: 4,167,946 km (0.093 R)
• M9: 4,559,743 km (0.083 R)
• M10: 4,953,485 km (0.114 R)
• M11: 6,038,668 km (0.066 R)
• M12: 7,363,506 km (0.105 R)
• M13: 7,753,508 km (0.111 R)
• M14: 9,143,272 km (0.112 R)
• M15: 9,523,999 km (0.059 R)
• M16: 9,987,603 km (0.071 R)
• M17: 11,629,439 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.4

Radius: 14.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.4 AU - 4.78 AU

Year: 5341 Days

Day: 11.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,463,438 km

• M1: 186,399 km (0.082 R)
• M2: 648,208 km (0.113 R)
• M3: 1,165,517 km (0.088 R)
• M4: 1,653,804 km (0.058 R)
• M5: 2,106,936 km (0.104 R)
• M6: 3,238,196 km (0.117 R)
• M7: 3,940,558 km (0.054 R)
• M8: 4,673,886 km (0.075 R)
• M9: 6,052,131 km (0.078 R)
• M10: 6,615,667 km (0.117 R)
• M11: 7,091,687 km (0.098 R)
• M12: 7,914,176 km (0.089 R)
• M13: 8,905,711 km (0.102 R)
• M14: 9,863,736 km (0.087 R)
• M15: 10,447,018 km (0.052 R)
• M16: 12,649,996 km (0.042 R)
• M17: 15,147,233 km (0.117 R)
• M18: 18,828,837 km (0.117 R)
• M19: 19,911,477 km (0.103 R)
• M20: 20,593,344 km (0.026 R)
• M21: 21,290,619 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.4

Radius: 14.3

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.45 AU - 5.59 AU

Year: 8374 Days

Day: 10 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,463,438 km

• M1: 179,667 km (0.104 R)
• M2: 2,895,916 km (0.11 R)
• M3: 3,407,092 km (0.097 R)
• M4: 4,584,876 km (0.037 R)
• M5: 5,380,736 km (0.085 R)
• M6: 6,745,518 km (0.119 R)
• M7: 7,735,108 km (0.078 R)
• M8: 12,169,039 km (0.058 R)
• M9: 16,220,149 km (0.12 R)
• M10: 23,291,192 km (0.086 R)
• M11: 23,819,123 km (0.118 R)
• M12: 26,294,519 km (0.04 R)
• M13: 26,771,137 km (0.07 R)
• M14: 30,062,590 km (0.05 R)
• M15: 30,583,938 km (0.063 R)
• M16: 32,619,816 km (0.033 R)
• M17: 34,973,589 km (0.092 R)
• M18: 40,648,285 km (0.098 R)
• M19: 41,671,684 km (0.105 R)
• M20: 43,239,021 km (0.118 R)
• M21: 45,389,490 km (0.082 R)
• M22: 46,352,302 km (0.102 R)

Asteroid Belt

Center: 6.43 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.8

Radius: 5.5

Gravity: 14.94 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.15 AU - 7.51 AU

Year: 12814 Days

Day: 24.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,463,438 km

• M1: 68,965 km (0.096 R)
• M2: 293,212 km (0.034 R)
• M3: 765,044 km (0.075 R)
• M4: 1,124,527 km (0.113 R)
• M5: 1,679,087 km (0.116 R)
• M6: 2,323,704 km (0.102 R)
• M7: 2,578,469 km (0.032 R)
• M8: 3,237,896 km (0.073 R)
• M9: 3,456,160 km (0.058 R)
• M10: 3,949,384 km (0.031 R)
• M11: 5,403,176 km (0.099 R)
• M12: 6,139,197 km (0.112 R)
• M13: 7,386,395 km (0.066 R)
• M14: 9,959,777 km (0.097 R)
• M15: 10,474,843 km (0.073 R)
• M16: 11,007,411 km (0.05 R)
• M17: 13,818,206 km (0.062 R)
• M18: 14,328,933 km (0.112 R)
• M19: 15,185,680 km (0.063 R)
• M20: 16,784,283 km (0.083 R)
• M21: 18,800,114 km (0.103 R)
• M22: 19,033,487 km (0.099 R)
• M23: 20,230,120 km (0.114 R)
• M24: 20,971,677 km (0.073 R)
• M25: 24,395,523 km (0.034 R)
• M26: 27,469,161 km (0.063 R)
• M27: 29,936,778 km (0.101 R)
• M28: 32,772,705 km (0.099 R)
• M29: 37,109,697 km (0.088 R)
• M30: 40,635,270 km (0.052 R)
• M31: 41,550,210 km (0.069 R)
• M32: 42,612,654 km (0.097 R)
• M33: 47,043,893 km (0.096 R)
• M34: 48,781,771 km (0.073 R)
• M35: 49,222,786 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.4

Radius: 7.9

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.55 AU - 7.85 AU

Year: 13796 Days

Day: 15.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,463,438 km

• M1: 101,876 km (0.069 R)
• M2: 432,936 km (0.104 R)
• M3: 797,357 km (0.052 R)
• M4: 1,431,352 km (0.114 R)
• M5: 1,822,700 km (0.079 R)
• M6: 2,489,608 km (0.084 R)
• M7: 3,182,246 km (0.1 R)
• M8: 4,359,731 km (0.097 R)
• M9: 5,012,576 km (0.116 R)
• M10: 5,918,241 km (0.091 R)
• M11: 7,319,674 km (0.083 R)
• M12: 8,531,267 km (0.056 R)
• M13: 9,817,360 km (0.076 R)
• M14: 11,405,790 km (0.116 R)
• M15: 13,623,429 km (0.072 R)
• M16: 13,893,902 km (0.047 R)
• M17: 15,011,997 km (0.098 R)
• M18: 18,230,595 km (0.113 R)
• M19: 20,000,487 km (0.065 R)
• M20: 21,606,271 km (0.117 R)
• M21: 23,008,601 km (0.06 R)
• M22: 27,149,470 km (0.118 R)
• M23: 28,230,016 km (0.056 R)
• M24: 28,559,580 km (0.116 R)
• M25: 31,056,219 km (0.07 R)
• M26: 31,761,573 km (0.094 R)
• M27: 33,694,676 km (0.094 R)
• M28: 34,314,460 km (0.097 R)
• M29: 36,090,486 km (0.091 R)
• M30: 38,868,220 km (0.08 R)
• M31: 41,927,646 km (0.033 R)
• M32: 45,444,243 km (0.117 R)
• M33: 46,048,768 km (0.083 R)
• M34: 53,896,522 km (0.096 R)
• M35: 57,340,565 km (0.104 R)
• M36: 61,111,628 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 726.4

Radius: 7.3

Gravity: 13.63 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 7.57 AU - 8.31 AU

Year: 14446 Days

Day: 20.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,463,438 km

• M1: 92,900 km (0.095 R)
• M2: 436,676 km (0.066 R)
• M3: 693,536 km (0.093 R)
• M4: 931,696 km (0.056 R)
• M5: 1,860,399 km (0.104 R)
• M6: 2,096,465 km (0.113 R)
• M7: 4,203,551 km (0.077 R)
• M8: 6,691,363 km (0.075 R)
• M9: 7,428,881 km (0.069 R)
• M10: 9,912,205 km (0.108 R)
• M11: 11,581,119 km (0.113 R)
• M12: 11,886,598 km (0.034 R)
• M13: 13,630,760 km (0.105 R)
• M14: 16,441,404 km (0.12 R)
• M15: 17,378,485 km (0.113 R)
• M16: 19,702,788 km (0.103 R)
• M17: 21,029,421 km (0.105 R)
• M18: 22,985,414 km (0.073 R)
• M19: 23,468,316 km (0.12 R)
• M20: 26,934,049 km (0.114 R)
• M21: 31,430,513 km (0.064 R)
• M22: 32,386,144 km (0.07 R)
• M23: 32,749,517 km (0.109 R)
• M24: 35,241,518 km (0.101 R)
• M25: 43,178,284 km (0.104 R)
• M26: 48,186,073 km (0.075 R)
• M27: 54,075,741 km (0.116 R)
• M28: 60,610,924 km (0.066 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 11,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit