🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.59 AU - 0.75 AU

Year: 349 Days

Day: 27.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.6

Radius: 10.7

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.72 AU - 0.78 AU

Year: 413 Days

Day: 11 Hours

Environment

Temp: -140 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,766,809 km

• M1: 132,993 km (0.116 R)
• M2: 511,176 km (0.098 R)
• M3: 1,017,714 km (0.113 R)
• M4: 1,409,212 km (0.09 R)
• M5: 1,901,987 km (0.099 R)
• M6: 2,404,487 km (0.034 R)
• M7: 2,852,383 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.1

Radius: 11.4

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.97 AU - 1.39 AU

Year: 815 Days

Day: 10.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,766,809 km

• M1: 141,968 km (0.109 R)
• M2: 1,063,940 km (0.064 R)
• M3: 1,740,422 km (0.09 R)
• M4: 2,111,574 km (0.104 R)
• M5: 2,651,024 km (0.085 R)
• M6: 3,240,589 km (0.066 R)
• M7: 3,617,576 km (0.072 R)
• M8: 5,392,554 km (0.101 R)
• M9: 6,427,921 km (0.103 R)
• M10: 8,650,048 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.9

Radius: 10.6

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.39 AU - 2.19 AU

Year: 1523 Days

Day: 8.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,766,809 km

• M1: 132,843 km (0.032 R)
• M2: 499,657 km (0.026 R)
• M3: 971,189 km (0.101 R)
• M4: 1,655,899 km (0.074 R)
• M5: 2,210,608 km (0.109 R)
• M6: 2,732,256 km (0.026 R)
• M7: 3,366,401 km (0.09 R)
• M8: 3,988,130 km (0.062 R)
• M9: 4,684,807 km (0.115 R)
• M10: 5,031,276 km (0.105 R)
• M11: 5,730,197 km (0.105 R)
• M12: 6,271,741 km (0.118 R)
• M13: 6,950,467 km (0.052 R)
• M14: 7,402,551 km (0.098 R)
• M15: 7,874,234 km (0.112 R)
• M16: 8,877,736 km (0.05 R)
• M17: 10,031,136 km (0.045 R)
• M18: 10,402,737 km (0.053 R)
• M19: 11,757,794 km (0.08 R)
• M20: 13,027,132 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.5

Radius: 11.3

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.87 AU - 4.03 AU

Year: 4074 Days

Day: 5.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 29,766,809 km

• M1: 140,472 km (0.067 R)
• M2: 517,609 km (0.06 R)
• M3: 1,020,407 km (0.094 R)
• M4: 1,386,623 km (0.11 R)
• M5: 2,172,161 km (0.078 R)
• M6: 3,655,424 km (0.086 R)
• M7: 5,121,932 km (0.08 R)
• M8: 5,841,797 km (0.117 R)
• M9: 7,517,293 km (0.096 R)
• M10: 8,863,225 km (0.101 R)
• M11: 13,399,032 km (0.102 R)
• M12: 14,070,428 km (0.096 R)
• M13: 18,579,756 km (0.104 R)
• M14: 19,808,703 km (0.108 R)
• M15: 22,284,548 km (0.08 R)
• M16: 23,080,408 km (0.114 R)
• M17: 23,522,470 km (0.103 R)
• M18: 25,192,132 km (0.098 R)
• M19: 25,582,283 km (0.106 R)
• M20: 26,454,887 km (0.036 R)
• M21: 26,939,285 km (0.103 R)
• M22: 27,759,530 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.8

Radius: 8.2

Gravity: 14.56 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.92 AU - 4.2 AU

Year: 5201 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 29,766,809 km

• M1: 102,026 km (0.048 R)
• M2: 364,121 km (0.097 R)
• M3: 626,665 km (0.103 R)
• M4: 1,089,820 km (0.063 R)
• M5: 1,364,632 km (0.072 R)
• M6: 2,167,224 km (0.105 R)
• M7: 6,824,954 km (0.1 R)
• M8: 8,004,533 km (0.083 R)
• M9: 8,683,857 km (0.072 R)
• M10: 9,271,627 km (0.068 R)
• M11: 11,639,163 km (0.103 R)
• M12: 11,992,813 km (0.103 R)
• M13: 15,264,967 km (0.106 R)
• M14: 15,567,154 km (0.074 R)
• M15: 20,081,420 km (0.033 R)
• M16: 20,811,308 km (0.096 R)
• M17: 22,401,832 km (0.076 R)
• M18: 22,870,672 km (0.094 R)
• M19: 24,153,175 km (0.093 R)
• M20: 25,908,257 km (0.078 R)
• M21: 27,301,312 km (0.042 R)
• M22: 28,560,627 km (0.106 R)
• M23: 29,204,646 km (0.107 R)
• M24: 31,291,686 km (0.119 R)
• M25: 33,374,687 km (0.116 R)
• M26: 34,295,013 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.4

Radius: 14.7

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.14 AU - 5.86 AU

Year: 8201 Days

Day: 10.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,766,809 km

• M1: 182,958 km (0.083 R)
• M2: 776,413 km (0.049 R)
• M3: 1,403,378 km (0.113 R)
• M4: 1,987,109 km (0.06 R)
• M5: 2,732,256 km (0.049 R)
• M6: 3,448,979 km (0.102 R)
• M7: 4,235,714 km (0.119 R)
• M8: 5,478,872 km (0.1 R)
• M9: 6,272,040 km (0.1 R)
• M10: 8,896,735 km (0.061 R)
• M11: 9,618,844 km (0.099 R)
• M12: 10,428,617 km (0.116 R)
• M13: 11,129,184 km (0.116 R)
• M14: 12,021,984 km (0.095 R)
• M15: 12,736,613 km (0.119 R)
• M16: 14,555,274 km (0.103 R)
• M17: 15,559,076 km (0.1 R)
• M18: 16,275,650 km (0.073 R)
• M19: 24,527,169 km (0.059 R)
• M20: 27,896,113 km (0.058 R)
• M21: 28,760,191 km (0.098 R)
• M22: 30,541,602 km (0.045 R)
• M23: 31,459,385 km (0.112 R)
• M24: 34,872,460 km (0.099 R)
• M25: 36,554,389 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.9

Radius: 12.5

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.24 AU - 6.98 AU

Year: 8448 Days

Day: 14 Hours

Environment

Temp: -210 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,766,809 km

• M1: 155,432 km (0.065 R)
• M2: 710,590 km (0.099 R)
• M3: 1,911,562 km (0.067 R)
• M4: 2,863,453 km (0.102 R)
• M5: 3,349,796 km (0.109 R)
• M6: 4,335,197 km (0.079 R)
• M7: 5,718,528 km (0.099 R)
• M8: 8,912,443 km (0.117 R)
• M9: 11,276,987 km (0.062 R)
• M10: 12,030,362 km (0.025 R)
• M11: 17,340,936 km (0.105 R)
• M12: 20,542,630 km (0.087 R)
• M13: 26,054,414 km (0.111 R)
• M14: 29,852,106 km (0.082 R)
• M15: 34,522,551 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.1

Radius: 5.2

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.76 AU - 8.3 AU

Year: 11851 Days

Day: 22.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 29,766,809 km

• M1: 65,075 km (0.065 R)
• M2: 339,438 km (0.068 R)
• M3: 883,824 km (0.062 R)
• M4: 1,277,267 km (0.034 R)
• M5: 1,514,230 km (0.079 R)
• M6: 1,780,215 km (0.049 R)
• M7: 2,027,799 km (0.059 R)
• M8: 2,554,234 km (0.037 R)
• M9: 2,932,118 km (0.1 R)
• M10: 3,211,567 km (0.079 R)
• M11: 3,415,170 km (0.062 R)
• M12: 3,773,905 km (0.084 R)
• M13: 4,026,726 km (0.055 R)
• M14: 4,427,050 km (0.069 R)
• M15: 5,152,749 km (0.028 R)
• M16: 5,592,268 km (0.038 R)
• M17: 7,328,650 km (0.08 R)
• M18: 9,078,496 km (0.08 R)
• M19: 11,820,476 km (0.077 R)
• M20: 12,089,303 km (0.098 R)
• M21: 12,472,423 km (0.107 R)
• M22: 13,378,538 km (0.119 R)
• M23: 13,729,345 km (0.118 R)
• M24: 15,321,066 km (0.112 R)
• M25: 16,492,417 km (0.069 R)
• M26: 16,693,327 km (0.043 R)
• M27: 17,862,734 km (0.118 R)
• M28: 24,190,574 km (0.103 R)
• M29: 24,711,324 km (0.088 R)
• M30: 32,072,138 km (0.118 R)
• M31: 36,303,364 km (0.106 R)
• M32: 38,375,743 km (0.113 R)
• M33: 40,162,092 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.2

Radius: 5.6

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 7.37 AU - 8.07 AU

Year: 13638 Days

Day: 22.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,766,809 km

• M1: 69,713 km (0.057 R)
• M2: 680,521 km (0.082 R)
• M3: 887,564 km (0.12 R)
• M4: 1,831,228 km (0.057 R)
• M5: 2,811,991 km (0.059 R)
• M6: 2,998,091 km (0.051 R)
• M7: 3,333,489 km (0.103 R)
• M8: 3,849,004 km (0.107 R)
• M9: 4,342,377 km (0.098 R)
• M10: 5,064,636 km (0.115 R)
• M11: 8,262,889 km (0.057 R)
• M12: 9,122,029 km (0.069 R)
• M13: 11,574,986 km (0.107 R)
• M14: 12,299,787 km (0.08 R)
• M15: 15,274,541 km (0.094 R)
• M16: 18,566,143 km (0.087 R)
• M17: 21,503,048 km (0.047 R)
• M18: 24,111,138 km (0.108 R)
• M19: 24,344,061 km (0.102 R)
• M20: 24,578,481 km (0.103 R)
• M21: 26,261,757 km (0.07 R)
• M22: 27,089,631 km (0.117 R)
• M23: 28,797,590 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 19,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit