🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.3

Radius: 12.6

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.49 AU - 0.63 AU

Year: 279 Days

Day: 5.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,851,859 km

• M1: 158,275 km (0.096 R)
• M2: 593,904 km (0.117 R)
• M3: 1,020,706 km (0.11 R)
• M4: 1,713,644 km (0.104 R)
• M5: 2,144,485 km (0.106 R)
• M6: 2,968,620 km (0.1 R)
• M7: 3,465,584 km (0.099 R)
• M8: 4,030,167 km (0.118 R)
• M9: 4,470,284 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.3

Radius: 13.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.57 AU - 0.59 AU

Year: 295 Days

Day: 11.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,851,859 km

• M1: 168,597 km (0.082 R)
• M2: 656,136 km (0.087 R)
• M3: 1,090,868 km (0.119 R)
• M4: 1,653,505 km (0.097 R)
• M5: 2,253,692 km (0.116 R)
• M6: 2,738,838 km (0.109 R)
• M7: 3,164,294 km (0.115 R)
• M8: 4,112,595 km (0.099 R)
• M9: 5,077,501 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.6

Radius: 8.8

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.07 AU - 2.33 AU

Year: 2176 Days

Day: 10.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,851,859 km

• M1: 109,506 km (0.108 R)
• M2: 567,874 km (0.083 R)
• M3: 1,006,345 km (0.1 R)
• M4: 1,843,794 km (0.088 R)
• M5: 2,588,342 km (0.116 R)
• M6: 2,904,443 km (0.041 R)
• M7: 3,583,168 km (0.105 R)
• M8: 4,679,571 km (0.079 R)
• M9: 4,990,585 km (0.107 R)
• M10: 5,398,838 km (0.104 R)
• M11: 5,962,822 km (0.027 R)
• M12: 6,305,700 km (0.054 R)
• M13: 7,081,365 km (0.076 R)
• M14: 7,784,176 km (0.108 R)
• M15: 8,166,398 km (0.097 R)
• M16: 9,358,544 km (0.106 R)
• M17: 10,108,179 km (0.078 R)
• M18: 10,399,446 km (0.105 R)
• M19: 11,691,223 km (0.051 R)
• M20: 12,084,516 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.8

Radius: 14.1

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.4 AU - 2.9 AU

Year: 2877 Days

Day: 7.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,851,859 km

• M1: 175,628 km (0.099 R)
• M2: 664,364 km (0.054 R)
• M3: 1,222,364 km (0.114 R)
• M4: 2,043,357 km (0.044 R)
• M5: 2,518,929 km (0.089 R)
• M6: 3,698,957 km (0.069 R)
• M7: 4,805,682 km (0.108 R)
• M8: 5,423,970 km (0.105 R)
• M9: 6,067,091 km (0.109 R)
• M10: 7,571,298 km (0.089 R)
• M11: 8,410,991 km (0.071 R)
• M12: 9,386,668 km (0.066 R)
• M13: 10,038,915 km (0.034 R)
• M14: 12,000,891 km (0.06 R)
• M15: 12,723,748 km (0.077 R)
• M16: 13,716,479 km (0.04 R)
• M17: 16,233,314 km (0.091 R)
• M18: 18,034,771 km (0.056 R)
• M19: 20,091,293 km (0.1 R)
• M20: 21,241,252 km (0.083 R)
• M21: 21,965,306 km (0.114 R)
• M22: 22,569,831 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.5

Radius: 13.1

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.22 AU - 3.22 AU

Year: 2991 Days

Day: 10.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,851,859 km

• M1: 165,306 km (0.118 R)
• M2: 622,028 km (0.101 R)
• M3: 1,492,987 km (0.119 R)
• M4: 1,989,951 km (0.109 R)
• M5: 2,946,480 km (0.102 R)
• M6: 5,755,778 km (0.116 R)
• M7: 8,026,823 km (0.119 R)
• M8: 10,803,061 km (0.088 R)
• M9: 11,475,353 km (0.092 R)
• M10: 12,557,245 km (0.058 R)
• M11: 12,991,079 km (0.04 R)
• M12: 15,460,192 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.8

Radius: 13.8

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.23 AU - 4.29 AU

Year: 5863 Days

Day: 10 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,851,859 km

• M1: 173,234 km (0.102 R)
• M2: 754,123 km (0.066 R)
• M3: 1,290,581 km (0.101 R)
• M4: 2,239,331 km (0.114 R)
• M5: 3,680,856 km (0.088 R)
• M6: 6,241,971 km (0.055 R)
• M7: 7,608,548 km (0.092 R)
• M8: 8,913,490 km (0.096 R)
• M9: 9,774,126 km (0.078 R)
• M10: 12,585,519 km (0.081 R)
• M11: 13,174,037 km (0.025 R)
• M12: 15,109,983 km (0.087 R)
• M13: 16,970,083 km (0.086 R)
• M14: 17,689,051 km (0.095 R)
• M15: 19,398,505 km (0.062 R)
• M16: 20,257,197 km (0.071 R)
• M17: 20,843,621 km (0.097 R)
• M18: 21,366,017 km (0.116 R)
• M19: 29,255,210 km (0.113 R)
• M20: 31,347,635 km (0.092 R)
• M21: 33,436,470 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.4

Radius: 5.9

Gravity: 13.71 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.79 AU - 7.07 AU

Year: 9630 Days

Day: 23.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,851,859 km

• M1: 189,391 km (0.095 R)
• M2: 1,258,716 km (0.102 R)
• M3: 1,987,408 km (0.078 R)
• M4: 2,220,182 km (0.088 R)
• M5: 3,893,584 km (0.036 R)
• M6: 6,587,393 km (0.088 R)
• M7: 7,416,464 km (0.083 R)
• M8: 8,103,118 km (0.061 R)
• M9: 13,428,354 km (0.041 R)
• M10: 17,665,713 km (0.115 R)
• M11: 18,521,413 km (0.096 R)
• M12: 22,385,526 km (0.069 R)
• M13: 35,991,602 km (0.068 R)
• M14: 36,445,183 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.2

Radius: 3.3

Gravity: 21.97 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 6.83 AU - 8.25 AU

Year: 13807 Days

Day: 18.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,851,859 km

• M1: 41,139 km (0.119 R)
• M2: 196,721 km (0.075 R)
• M3: 314,455 km (0.111 R)
• M4: 663,467 km (0.109 R)
• M5: 882,478 km (0.085 R)
• M6: 1,071,420 km (0.097 R)
• M7: 1,262,606 km (0.05 R)
• M8: 1,398,291 km (0.083 R)
• M9: 2,158,847 km (0.077 R)
• M10: 4,990,286 km (0.066 R)
• M11: 5,587,331 km (0.084 R)
• M12: 5,752,038 km (0.106 R)
• M13: 6,195,446 km (0.083 R)
• M14: 7,035,289 km (0.086 R)
• M15: 9,253,975 km (0.092 R)
• M16: 9,814,069 km (0.079 R)
• M17: 10,347,086 km (0.058 R)
• M18: 14,443,674 km (0.096 R)
• M19: 16,440,208 km (0.032 R)
• M20: 16,710,531 km (0.099 R)
• M21: 17,821,445 km (0.052 R)
• M22: 20,577,187 km (0.056 R)
• M23: 27,668,575 km (0.077 R)
• M24: 28,147,139 km (0.109 R)
• M25: 28,533,999 km (0.106 R)
• M26: 31,861,055 km (0.095 R)
• M27: 36,001,924 km (0.036 R)
• M28: 41,476,758 km (0.097 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: 275 - 15,690 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit