🌌 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: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.45 AU - 0.57 AU

Year: 235 Days

Day: 31.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.55 AU - 0.57 AU

Year: 271 Days

Day: 32.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.6

Radius: 9.1

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.94 AU - 1.04 AU

Year: 636 Days

Day: 14.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,322,244 km

• M1: 113,246 km (0.044 R)
• M2: 427,252 km (0.076 R)
• M3: 834,607 km (0.081 R)
• M4: 1,186,760 km (0.066 R)
• M5: 1,576,762 km (0.107 R)
• M6: 2,540,172 km (0.097 R)
• M7: 2,947,976 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.5

Radius: 13.9

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.14 AU - 1.66 AU

Year: 1070 Days

Day: 9.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,322,244 km

• M1: 172,935 km (0.108 R)
• M2: 716,275 km (0.102 R)
• M3: 1,424,770 km (0.079 R)
• M4: 2,292,288 km (0.084 R)
• M5: 3,245,975 km (0.085 R)
• M6: 3,981,248 km (0.08 R)
• M7: 5,399,137 km (0.101 R)
• M8: 5,954,294 km (0.111 R)
• M9: 8,112,244 km (0.093 R)
• M10: 8,594,398 km (0.03 R)
• M11: 9,705,162 km (0.118 R)
• M12: 10,654,660 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.2

Radius: 8.2

Gravity: 9.19 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.91 AU - 3.07 AU

Year: 2537 Days

Day: 13.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,322,244 km

• M1: 102,774 km (0.1 R)
• M2: 400,922 km (0.079 R)
• M3: 956,080 km (0.109 R)
• M4: 1,421,479 km (0.079 R)
• M5: 1,696,141 km (0.102 R)
• M6: 2,143,588 km (0.11 R)
• M7: 3,275,146 km (0.11 R)
• M8: 4,762,299 km (0.083 R)
• M9: 5,313,567 km (0.085 R)
• M10: 6,488,658 km (0.055 R)
• M11: 8,367,009 km (0.05 R)
• M12: 8,629,104 km (0.078 R)
• M13: 9,985,957 km (0.039 R)
• M14: 10,619,803 km (0.065 R)
• M15: 11,762,731 km (0.085 R)
• M16: 13,248,687 km (0.064 R)
• M17: 13,831,221 km (0.055 R)
• M18: 14,760,672 km (0.107 R)
• M19: 15,143,942 km (0.078 R)
• M20: 15,681,597 km (0.041 R)
• M21: 16,640,370 km (0.115 R)
• M22: 17,003,294 km (0.06 R)
• M23: 17,424,562 km (0.06 R)
• M24: 17,960,720 km (0.117 R)
• M25: 18,342,644 km (0.115 R)

Asteroid Belt

Center: 3.33 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.3

Radius: 14.3

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.6 AU - 4.74 AU

Year: 5498 Days

Day: 11.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,322,244 km

• M1: 177,872 km (0.117 R)
• M2: 665,411 km (0.079 R)
• M3: 1,301,950 km (0.059 R)
• M4: 1,830,330 km (0.096 R)
• M5: 2,975,202 km (0.116 R)
• M6: 3,421,453 km (0.096 R)
• M7: 4,007,129 km (0.115 R)
• M8: 4,606,717 km (0.062 R)
• M9: 6,877,313 km (0.115 R)
• M10: 8,082,773 km (0.084 R)
• M11: 8,797,402 km (0.048 R)
• M12: 11,293,442 km (0.085 R)
• M13: 12,756,809 km (0.115 R)
• M14: 14,687,519 km (0.081 R)
• M15: 15,692,667 km (0.073 R)
• M16: 16,806,274 km (0.065 R)
• M17: 18,238,224 km (0.068 R)
• M18: 19,609,438 km (0.119 R)
• M19: 24,216,305 km (0.11 R)
• M20: 28,224,630 km (0.1 R)
• M21: 32,359,515 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.1

Radius: 14.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.23 AU - 4.67 AU

Year: 6061 Days

Day: 13.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,322,244 km

• M1: 177,872 km (0.092 R)
• M2: 940,821 km (0.087 R)
• M3: 1,399,338 km (0.101 R)
• M4: 3,043,569 km (0.101 R)
• M5: 4,495,416 km (0.061 R)
• M6: 5,155,442 km (0.089 R)
• M7: 6,193,501 km (0.088 R)
• M8: 8,574,202 km (0.075 R)
• M9: 10,817,572 km (0.118 R)
• M10: 13,726,203 km (0.115 R)
• M11: 14,749,602 km (0.05 R)
• M12: 15,878,318 km (0.066 R)
• M13: 16,492,118 km (0.108 R)
• M14: 22,263,454 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.2

Radius: 6.9

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.94 AU - 7.76 AU

Year: 10332 Days

Day: 24 Hours

Environment

Temp: -213 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 52,322,244 km

• M1: 86,168 km (0.054 R)
• M2: 306,526 km (0.07 R)
• M3: 606,619 km (0.087 R)
• M4: 914,492 km (0.119 R)
• M5: 1,742,217 km (0.072 R)
• M6: 3,315,089 km (0.115 R)
• M7: 3,559,681 km (0.11 R)
• M8: 4,196,220 km (0.102 R)
• M9: 4,512,321 km (0.063 R)
• M10: 5,322,842 km (0.063 R)
• M11: 5,693,695 km (0.078 R)
• M12: 6,045,549 km (0.072 R)
• M13: 7,351,389 km (0.109 R)
• M14: 7,684,095 km (0.095 R)
• M15: 8,026,823 km (0.07 R)
• M16: 8,605,468 km (0.109 R)
• M17: 11,586,056 km (0.115 R)
• M18: 12,209,131 km (0.066 R)
• M19: 13,522,002 km (0.094 R)
• M20: 14,469,256 km (0.085 R)
• M21: 16,215,063 km (0.086 R)
• M22: 19,718,944 km (0.06 R)
• M23: 21,018,351 km (0.106 R)
• M24: 23,517,384 km (0.119 R)
• M25: 25,164,456 km (0.083 R)
• M26: 26,886,777 km (0.098 R)
• M27: 28,686,289 km (0.085 R)
• M28: 29,407,201 km (0.113 R)
• M29: 33,646,955 km (0.1 R)
• M30: 35,263,060 km (0.094 R)
• M31: 38,525,042 km (0.057 R)
• M32: 40,037,177 km (0.101 R)
• M33: 45,641,413 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.8

Radius: 4.4

Gravity: 42.71 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.54 AU - 7.2 AU

Year: 10381 Days

Day: 19.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,322,244 km

• M1: 54,753 km (0.095 R)
• M2: 210,783 km (0.056 R)
• M3: 832,811 km (0.117 R)
• M4: 1,465,910 km (0.081 R)
• M5: 1,657,395 km (0.11 R)
• M6: 2,182,334 km (0.109 R)
• M7: 2,473,002 km (0.065 R)
• M8: 3,982,744 km (0.079 R)
• M9: 4,881,379 km (0.088 R)
• M10: 6,054,525 km (0.11 R)
• M11: 6,203,973 km (0.065 R)
• M12: 6,549,096 km (0.117 R)
• M13: 7,319,525 km (0.095 R)
• M14: 10,626,386 km (0.077 R)
• M15: 12,571,906 km (0.098 R)
• M16: 12,876,637 km (0.074 R)
• M17: 13,885,226 km (0.118 R)
• M18: 16,058,135 km (0.113 R)
• M19: 18,059,455 km (0.12 R)
• M20: 22,638,496 km (0.115 R)
• M21: 23,638,708 km (0.047 R)
• M22: 35,552,233 km (0.11 R)
• M23: 39,702,228 km (0.037 R)
• M24: 40,887,641 km (0.116 R)
• M25: 41,825,769 km (0.115 R)
• M26: 50,157,623 km (0.072 R)
• M27: 52,165,526 km (0.061 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 11,566 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit