🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.52 AU - 0.74 AU

Year: 323 Days

Day: 44.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.4

Radius: 11.7

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.83 AU - 1.19 AU

Year: 655 Days

Day: 8.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,887,475 km

• M1: 145,559 km (0.037 R)
• M2: 544,387 km (0.074 R)
• M3: 1,030,281 km (0.114 R)
• M4: 1,498,821 km (0.115 R)
• M5: 2,369,630 km (0.099 R)
• M6: 3,449,129 km (0.104 R)
• M7: 4,150,144 km (0.083 R)
• M8: 6,206,666 km (0.089 R)
• M9: 6,975,001 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934

Radius: 14.2

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.94 AU - 1.54 AU

Year: 892 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,887,475 km

• M1: 176,675 km (0.118 R)
• M2: 627,713 km (0.102 R)
• M3: 1,280,408 km (0.091 R)
• M4: 1,846,636 km (0.105 R)
• M5: 2,384,889 km (0.06 R)
• M6: 2,923,890 km (0.106 R)
• M7: 4,267,878 km (0.118 R)
• M8: 5,338,998 km (0.106 R)
• M9: 6,403,387 km (0.089 R)
• M10: 6,880,904 km (0.103 R)
• M11: 8,325,570 km (0.094 R)
• M12: 8,785,285 km (0.086 R)
• M13: 9,463,113 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.1

Radius: 13.3

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.67 AU - 2.19 AU

Year: 1731 Days

Day: 13 Hours

Environment

Temp: -195 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,887,475 km

• M1: 165,605 km (0.055 R)
• M2: 677,978 km (0.119 R)
• M3: 1,240,166 km (0.035 R)
• M4: 1,737,280 km (0.117 R)
• M5: 2,169,917 km (0.096 R)
• M6: 2,846,548 km (0.119 R)
• M7: 3,574,342 km (0.12 R)
• M8: 4,266,382 km (0.075 R)
• M9: 5,356,651 km (0.1 R)
• M10: 8,205,294 km (0.067 R)
• M11: 9,379,338 km (0.1 R)
• M12: 10,844,499 km (0.092 R)
• M13: 11,327,551 km (0.105 R)
• M14: 13,405,615 km (0.045 R)
• M15: 14,136,999 km (0.102 R)
• M16: 15,399,605 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.6

Radius: 12.1

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.72 AU - 2.44 AU

Year: 1937 Days

Day: 5 Hours

Environment

Temp: -192 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,887,475 km

• M1: 150,495 km (0.1 R)
• M2: 586,573 km (0.058 R)
• M3: 1,129,464 km (0.086 R)
• M4: 1,532,929 km (0.085 R)
• M5: 2,045,601 km (0.115 R)
• M6: 2,549,896 km (0.105 R)
• M7: 3,060,473 km (0.085 R)
• M8: 3,471,119 km (0.101 R)
• M9: 4,082,526 km (0.079 R)
• M10: 4,463,402 km (0.094 R)
• M11: 5,940,980 km (0.108 R)
• M12: 8,070,656 km (0.049 R)
• M13: 8,892,546 km (0.042 R)
• M14: 11,027,009 km (0.025 R)
• M15: 12,908,651 km (0.111 R)
• M16: 15,040,420 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.6

Radius: 14.5

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.16 AU - 3.48 AU

Year: 3058 Days

Day: 12.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,887,475 km

• M1: 181,013 km (0.073 R)
• M2: 814,860 km (0.034 R)
• M3: 1,673,402 km (0.11 R)
• M4: 2,671,668 km (0.054 R)
• M5: 8,276,053 km (0.05 R)
• M6: 12,080,178 km (0.109 R)
• M7: 13,318,100 km (0.115 R)
• M8: 14,090,773 km (0.104 R)
• M9: 15,098,464 km (0.061 R)
• M10: 15,992,162 km (0.061 R)
• M11: 16,809,864 km (0.065 R)
• M12: 17,943,367 km (0.112 R)
• M13: 20,488,924 km (0.112 R)
• M14: 21,519,205 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.9

Radius: 14.1

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.55 AU - 4.19 AU

Year: 4916 Days

Day: 12.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,887,475 km

• M1: 176,226 km (0.096 R)
• M2: 633,547 km (0.048 R)
• M3: 1,080,097 km (0.095 R)
• M4: 1,525,749 km (0.082 R)
• M5: 2,136,856 km (0.093 R)
• M6: 3,388,392 km (0.109 R)
• M7: 3,960,903 km (0.099 R)
• M8: 4,421,365 km (0.085 R)
• M9: 5,401,381 km (0.109 R)
• M10: 5,916,745 km (0.053 R)
• M11: 6,464,872 km (0.115 R)
• M12: 8,183,004 km (0.101 R)
• M13: 8,691,038 km (0.116 R)
• M14: 10,343,346 km (0.064 R)
• M15: 10,978,689 km (0.107 R)
• M16: 13,409,953 km (0.076 R)
• M17: 13,974,386 km (0.1 R)
• M18: 17,038,300 km (0.054 R)
• M19: 19,672,270 km (0.062 R)
• M20: 20,711,077 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 769.8

Radius: 4.1

Gravity: 45.79 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.43 AU - 8.35 AU

Year: 12971 Days

Day: 21.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 53,887,475 km

• M1: 51,013 km (0.094 R)
• M2: 246,836 km (0.04 R)
• M3: 490,083 km (0.104 R)
• M4: 752,926 km (0.102 R)
• M5: 1,178,233 km (0.096 R)
• M6: 1,323,343 km (0.082 R)
• M7: 1,682,078 km (0.054 R)
• M8: 2,065,199 km (0.104 R)
• M9: 3,149,035 km (0.067 R)
• M10: 5,375,949 km (0.069 R)
• M11: 8,620,428 km (0.107 R)
• M12: 9,850,272 km (0.101 R)
• M13: 12,525,680 km (0.051 R)
• M14: 12,778,949 km (0.096 R)
• M15: 16,389,793 km (0.113 R)
• M16: 17,545,437 km (0.109 R)
• M17: 17,942,320 km (0.098 R)
• M18: 18,426,568 km (0.088 R)
• M19: 20,802,182 km (0.101 R)
• M20: 21,516,662 km (0.04 R)
• M21: 23,183,780 km (0.118 R)
• M22: 24,835,640 km (0.077 R)
• M23: 25,537,853 km (0.106 R)
• M24: 26,047,682 km (0.045 R)
• M25: 35,529,045 km (0.061 R)
• M26: 41,519,243 km (0.099 R)
• M27: 42,223,700 km (0.078 R)
• M28: 43,946,768 km (0.049 R)
• M29: 45,121,111 km (0.084 R)
• M30: 46,165,753 km (0.112 R)
• M31: 50,187,094 km (0.086 R)
• M32: 51,147,063 km (0.094 R)
• M33: 52,938,797 km (0.118 R)
• M34: 53,103,803 km (0.105 R)
• M35: 55,448,900 km (0.079 R)
• M36: 58,388,199 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.4

Radius: 3.6

Gravity: 35.06 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.76 AU - 9.22 AU

Year: 14583 Days

Day: 15 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 53,887,475 km

• M1: 53,257 km (0.089 R)
• M2: 295,007 km (0.105 R)
• M3: 436,975 km (0.03 R)
• M4: 549,323 km (0.025 R)
• M5: 673,041 km (0.083 R)
• M6: 1,288,187 km (0.115 R)
• M7: 1,583,793 km (0.098 R)
• M8: 2,100,504 km (0.102 R)
• M9: 2,743,475 km (0.106 R)
• M10: 3,586,609 km (0.051 R)
• M11: 4,024,183 km (0.07 R)
• M12: 4,558,098 km (0.047 R)
• M13: 4,939,422 km (0.095 R)
• M14: 5,205,108 km (0.089 R)
• M15: 6,022,212 km (0.112 R)
• M16: 6,364,043 km (0.113 R)
• M17: 6,839,764 km (0.092 R)
• M18: 7,169,777 km (0.049 R)
• M19: 7,338,823 km (0.037 R)
• M20: 7,510,412 km (0.104 R)
• M21: 8,787,678 km (0.063 R)
• M22: 9,177,680 km (0.1 R)
• M23: 11,302,119 km (0.118 R)
• M24: 12,296,646 km (0.099 R)
• M25: 16,127,398 km (0.116 R)
• M26: 16,933,731 km (0.077 R)
• M27: 18,389,468 km (0.052 R)
• M28: 18,946,122 km (0.087 R)
• M29: 21,459,366 km (0.113 R)
• M30: 25,241,350 km (0.107 R)
• M31: 33,147,747 km (0.081 R)
• M32: 35,414,753 km (0.094 R)
• M33: 38,423,465 km (0.113 R)
• M34: 40,922,797 km (0.042 R)
• M35: 41,598,082 km (0.104 R)
• M36: 42,693,886 km (0.056 R)
• M37: 44,800,224 km (0.113 R)
• M38: 44,943,090 km (0.038 R)
• M39: 48,312,782 km (0.088 R)
• M40: 51,064,485 km (0.118 R)
• M41: 53,435,911 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220

Radius: 6

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 8.93 AU - 11.48 AU

Year: 21034 Days

Day: 16.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,887,475 km

• M1: 74,799 km (0.062 R)
• M2: 282,890 km (0.072 R)
• M3: 616,942 km (0.079 R)
• M4: 966,851 km (0.114 R)
• M5: 1,157,588 km (0.098 R)
• M6: 2,585,350 km (0.045 R)
• M7: 2,867,193 km (0.077 R)
• M8: 4,596,395 km (0.103 R)
• M9: 5,077,053 km (0.064 R)
• M10: 5,951,751 km (0.072 R)
• M11: 7,510,860 km (0.096 R)
• M12: 8,930,394 km (0.112 R)
• M13: 9,935,842 km (0.049 R)
• M14: 10,304,900 km (0.03 R)
• M15: 10,958,942 km (0.112 R)
• M16: 13,788,286 km (0.043 R)
• M17: 14,247,552 km (0.08 R)
• M18: 15,971,368 km (0.12 R)
• M19: 17,599,292 km (0.083 R)
• M20: 17,906,865 km (0.117 R)
• M21: 20,581,525 km (0.118 R)
• M22: 22,147,217 km (0.099 R)
• M23: 22,776,874 km (0.096 R)
• M24: 26,707,409 km (0.056 R)
• M25: 29,098,731 km (0.077 R)
• M26: 30,511,683 km (0.072 R)
• M27: 33,591,155 km (0.089 R)
• M28: 44,344,100 km (0.111 R)
• M29: 45,343,713 km (0.113 R)
• M30: 45,921,610 km (0.081 R)
• M31: 46,212,428 km (0.092 R)
• M32: 49,188,229 km (0.032 R)
• M33: 52,289,243 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 15,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit