🌌 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: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.61 AU - 0.65 AU

Year: 328 Days

Day: 19.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,160,830 km

• M1: 26,030 km (0.047 R)
• M2: 322,832 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.2

Radius: 14

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.83 AU - 1.03 AU

Year: 588 Days

Day: 11.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,160,830 km

• M1: 174,132 km (0.076 R)
• M2: 678,127 km (0.075 R)
• M3: 1,118,992 km (0.054 R)
• M4: 1,718,580 km (0.115 R)
• M5: 2,245,464 km (0.112 R)
• M6: 3,117,769 km (0.055 R)
• M7: 3,596,482 km (0.111 R)
• M8: 4,344,472 km (0.104 R)
• M9: 4,838,594 km (0.097 R)
• M10: 5,888,920 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.2

Radius: 10

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.04 AU - 1.08 AU

Year: 716 Days

Day: 13.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,160,830 km

• M1: 124,316 km (0.113 R)
• M2: 454,778 km (0.051 R)
• M3: 1,044,792 km (0.076 R)
• M4: 1,666,670 km (0.074 R)
• M5: 2,018,823 km (0.063 R)
• M6: 2,353,474 km (0.082 R)
• M7: 3,450,176 km (0.069 R)
• M8: 3,771,362 km (0.117 R)
• M9: 4,098,533 km (0.119 R)
• M10: 4,779,353 km (0.118 R)
• M11: 5,296,064 km (0.1 R)
• M12: 5,672,751 km (0.085 R)
• M13: 6,067,091 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.8

Radius: 12

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.82 AU - 1.3 AU

Year: 716 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,160,830 km

• M1: 149,299 km (0.076 R)
• M2: 615,296 km (0.104 R)
• M3: 1,074,113 km (0.114 R)
• M4: 1,508,096 km (0.109 R)
• M5: 2,487,364 km (0.063 R)
• M6: 2,929,276 km (0.066 R)
• M7: 3,436,113 km (0.056 R)
• M8: 4,284,633 km (0.077 R)
• M9: 4,908,456 km (0.074 R)
• M10: 5,385,673 km (0.115 R)
• M11: 6,225,216 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.7

Radius: 8.5

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.78 AU - 2.2 AU

Year: 1842 Days

Day: 14.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,160,830 km

• M1: 106,214 km (0.068 R)
• M2: 510,727 km (0.119 R)
• M3: 1,010,534 km (0.102 R)
• M4: 1,413,999 km (0.115 R)
• M5: 1,711,100 km (0.038 R)
• M6: 2,300,666 km (0.083 R)
• M7: 2,655,063 km (0.073 R)
• M8: 2,993,154 km (0.112 R)
• M9: 4,022,088 km (0.113 R)
• M10: 4,714,726 km (0.091 R)
• M11: 6,533,687 km (0.059 R)
• M12: 7,786,120 km (0.092 R)
• M13: 9,531,628 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.7

Radius: 9.7

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.74 AU - 2.52 AU

Year: 2039 Days

Day: 11.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,160,830 km

• M1: 121,324 km (0.059 R)
• M2: 500,554 km (0.09 R)
• M3: 924,365 km (0.097 R)
• M4: 1,479,822 km (0.105 R)
• M5: 2,258,030 km (0.118 R)
• M6: 2,753,648 km (0.04 R)
• M7: 3,175,813 km (0.041 R)
• M8: 3,799,636 km (0.095 R)
• M9: 4,423,160 km (0.073 R)
• M10: 5,450,150 km (0.098 R)
• M11: 5,825,640 km (0.079 R)
• M12: 6,707,819 km (0.104 R)
• M13: 7,362,459 km (0.107 R)
• M14: 9,250,983 km (0.109 R)
• M15: 10,166,821 km (0.097 R)
• M16: 10,773,739 km (0.116 R)
• M17: 11,404,594 km (0.107 R)
• M18: 11,748,370 km (0.036 R)
• M19: 12,821,734 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.4

Radius: 11.2

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.5 AU - 2.58 AU

Year: 2656 Days

Day: 6.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,160,830 km

• M1: 142,716 km (0.055 R)
• M2: 506,090 km (0.093 R)
• M3: 1,100,442 km (0.093 R)
• M4: 1,460,973 km (0.044 R)
• M5: 2,142,391 km (0.116 R)
• M6: 3,188,379 km (0.087 R)
• M7: 3,959,257 km (0.099 R)
• M8: 4,504,242 km (0.119 R)
• M9: 4,939,722 km (0.108 R)
• M10: 5,331,818 km (0.093 R)
• M11: 6,337,564 km (0.069 R)
• M12: 6,999,236 km (0.088 R)
• M13: 7,952,324 km (0.08 R)
• M14: 9,401,478 km (0.071 R)
• M15: 9,825,738 km (0.111 R)
• M16: 10,598,710 km (0.101 R)
• M17: 12,602,573 km (0.112 R)
• M18: 13,031,919 km (0.106 R)
• M19: 14,010,738 km (0.08 R)
• M20: 14,471,500 km (0.105 R)
• M21: 15,229,811 km (0.1 R)
• M22: 18,311,378 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.8

Radius: 7.3

Gravity: 12.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.28 AU - 10.1 AU

Year: 16805 Days

Day: 16.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,160,830 km

• M1: 96,939 km (0.078 R)
• M2: 814,560 km (0.064 R)
• M3: 2,566,950 km (0.057 R)
• M4: 2,844,304 km (0.085 R)
• M5: 3,655,274 km (0.073 R)
• M6: 4,350,306 km (0.07 R)
• M7: 4,953,185 km (0.108 R)
• M8: 6,449,015 km (0.068 R)
• M9: 10,474,693 km (0.108 R)
• M10: 12,443,850 km (0.054 R)
• M11: 13,446,904 km (0.117 R)
• M12: 15,236,543 km (0.076 R)
• M13: 18,676,696 km (0.064 R)
• M14: 19,281,670 km (0.109 R)
• M15: 28,835,289 km (0.076 R)
• M16: 32,528,411 km (0.118 R)
• M17: 36,391,328 km (0.119 R)
• M18: 38,710,543 km (0.115 R)
• M19: 39,270,339 km (0.053 R)
• M20: 41,417,367 km (0.1 R)
• M21: 46,413,787 km (0.084 R)
• M22: 49,137,964 km (0.057 R)
• M23: 49,629,542 km (0.076 R)
• M24: 54,551,761 km (0.038 R)
• M25: 55,078,794 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 709.7

Radius: 5.3

Gravity: 25.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.5 AU - 9.54 AU

Year: 17771 Days

Day: 21.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,160,830 km

• M1: 65,973 km (0.12 R)
• M2: 301,141 km (0.079 R)
• M3: 762,650 km (0.063 R)
• M4: 1,593,367 km (0.089 R)
• M5: 1,836,015 km (0.11 R)
• M6: 3,193,167 km (0.084 R)
• M7: 3,609,049 km (0.045 R)
• M8: 6,415,654 km (0.11 R)
• M9: 7,589,399 km (0.079 R)
• M10: 9,496,772 km (0.112 R)
• M11: 10,062,402 km (0.118 R)
• M12: 11,260,830 km (0.098 R)
• M13: 14,081,348 km (0.049 R)
• M14: 18,012,780 km (0.06 R)
• M15: 19,590,290 km (0.097 R)
• M16: 20,136,023 km (0.039 R)
• M17: 20,505,380 km (0.106 R)
• M18: 22,618,300 km (0.11 R)
• M19: 25,190,337 km (0.073 R)
• M20: 29,109,502 km (0.096 R)
• M21: 29,344,969 km (0.119 R)
• M22: 34,852,863 km (0.103 R)
• M23: 40,717,100 km (0.055 R)
• M24: 44,502,075 km (0.105 R)
• M25: 49,345,606 km (0.032 R)
• M26: 58,552,607 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 196 - 11,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit