🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 8.8

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.52 AU - 0.62 AU

Year: 287 Days

Day: 5.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,867,236 km

• M1: 109,506 km (0.072 R)
• M2: 425,008 km (0.099 R)
• M3: 707,897 km (0.108 R)
• M4: 1,052,870 km (0.094 R)
• M5: 1,540,110 km (0.053 R)
• M6: 1,948,512 km (0.05 R)
• M7: 2,362,150 km (0.032 R)
• M8: 3,273,052 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.8

Radius: 12.5

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.55 AU - 0.91 AU

Year: 416 Days

Day: 8.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 30,867,236 km

• M1: 155,432 km (0.071 R)
• M2: 566,527 km (0.074 R)
• M3: 1,317,658 km (0.052 R)
• M4: 2,016,131 km (0.039 R)
• M5: 3,005,272 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.7

Radius: 11.9

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.72 AU - 0.92 AU

Year: 495 Days

Day: 13 Hours

Environment

Temp: -165 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,867,236 km

• M1: 147,952 km (0.107 R)
• M2: 519,703 km (0.102 R)
• M3: 1,083,537 km (0.059 R)
• M4: 1,874,013 km (0.092 R)
• M5: 2,839,368 km (0.064 R)
• M6: 3,663,502 km (0.064 R)
• M7: 4,355,542 km (0.092 R)
• M8: 4,890,354 km (0.104 R)
• M9: 5,677,389 km (0.062 R)
• M10: 6,260,372 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.5

Radius: 10.7

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.84 AU - 1.12 AU

Year: 647 Days

Day: 12.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,867,236 km

• M1: 133,142 km (0.094 R)
• M2: 522,695 km (0.09 R)
• M3: 1,010,085 km (0.093 R)
• M4: 1,697,637 km (0.069 R)
• M5: 2,056,223 km (0.103 R)
• M6: 2,415,258 km (0.117 R)
• M7: 2,805,558 km (0.062 R)
• M8: 3,188,978 km (0.104 R)
• M9: 3,714,366 km (0.044 R)
• M10: 4,906,212 km (0.115 R)
• M11: 5,240,713 km (0.034 R)
• M12: 5,590,323 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986

Radius: 8.5

Gravity: 13.65 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.23 AU - 1.45 AU

Year: 1034 Days

Day: 5.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,867,236 km

• M1: 106,065 km (0.102 R)
• M2: 394,041 km (0.087 R)
• M3: 666,459 km (0.11 R)
• M4: 956,678 km (0.116 R)
• M5: 1,286,542 km (0.081 R)
• M6: 1,627,924 km (0.079 R)
• M7: 2,159,296 km (0.113 R)
• M8: 2,633,371 km (0.072 R)
• M9: 2,963,833 km (0.072 R)
• M10: 3,488,473 km (0.115 R)
• M11: 4,265,185 km (0.106 R)
• M12: 4,628,708 km (0.078 R)
• M13: 5,480,967 km (0.042 R)
• M14: 5,955,641 km (0.094 R)
• M15: 6,599,061 km (0.091 R)
• M16: 6,962,435 km (0.056 R)
• M17: 7,597,777 km (0.046 R)
• M18: 9,279,855 km (0.109 R)
• M19: 9,829,627 km (0.044 R)
• M20: 11,128,735 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.2

Radius: 14

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.56 AU - 2.68 AU

Year: 2828 Days

Day: 13.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,867,236 km

• M1: 176,825 km (0.111 R)
• M2: 802,293 km (0.105 R)
• M3: 1,301,651 km (0.075 R)
• M4: 2,224,969 km (0.093 R)
• M5: 4,244,540 km (0.115 R)
• M6: 5,027,386 km (0.102 R)
• M7: 5,557,710 km (0.12 R)
• M8: 6,097,460 km (0.116 R)
• M9: 7,602,115 km (0.1 R)
• M10: 8,758,806 km (0.098 R)
• M11: 9,304,988 km (0.047 R)
• M12: 10,873,820 km (0.087 R)
• M13: 11,591,591 km (0.097 R)
• M14: 12,117,128 km (0.102 R)
• M15: 12,704,450 km (0.114 R)
• M16: 15,506,866 km (0.082 R)
• M17: 17,024,686 km (0.108 R)
• M18: 18,109,720 km (0.086 R)
• M19: 19,119,057 km (0.057 R)
• M20: 20,735,013 km (0.08 R)
• M21: 22,305,791 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 904.6

Radius: 6.2

Gravity: 23.53 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.12 AU - 7.38 AU

Year: 13018 Days

Day: 22 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 30,867,236 km

• M1: 77,193 km (0.089 R)
• M2: 288,425 km (0.092 R)
• M3: 499,806 km (0.059 R)
• M4: 743,950 km (0.084 R)
• M5: 1,190,500 km (0.074 R)
• M6: 1,767,798 km (0.041 R)
• M7: 2,207,017 km (0.091 R)
• M8: 2,738,987 km (0.097 R)
• M9: 3,072,291 km (0.092 R)
• M10: 3,540,383 km (0.094 R)
• M11: 4,236,911 km (0.116 R)
• M12: 4,986,695 km (0.079 R)
• M13: 5,411,254 km (0.077 R)
• M14: 6,252,144 km (0.118 R)
• M15: 6,620,005 km (0.059 R)
• M16: 7,399,260 km (0.109 R)
• M17: 7,764,578 km (0.042 R)
• M18: 8,531,118 km (0.085 R)
• M19: 9,035,263 km (0.093 R)
• M20: 11,491,660 km (0.08 R)
• M21: 17,194,779 km (0.053 R)
• M22: 17,754,724 km (0.051 R)
• M23: 21,098,685 km (0.03 R)
• M24: 27,349,333 km (0.109 R)
• M25: 28,442,894 km (0.11 R)
• M26: 32,743,384 km (0.096 R)
• M27: 39,768,051 km (0.069 R)
• M28: 49,637,770 km (0.118 R)
• M29: 54,618,033 km (0.104 R)
• M30: 61,948,478 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.7

Radius: 7

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.53 AU - 9.03 AU

Year: 14471 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 30,867,236 km

• M1: 88,412 km (0.119 R)
• M2: 428,897 km (0.106 R)
• M3: 687,701 km (0.047 R)
• M4: 1,007,242 km (0.112 R)
• M5: 1,845,589 km (0.093 R)
• M6: 2,368,284 km (0.025 R)
• M7: 2,798,976 km (0.059 R)
• M8: 3,057,481 km (0.119 R)
• M9: 3,306,263 km (0.098 R)
• M10: 4,285,829 km (0.088 R)
• M11: 4,959,469 km (0.092 R)
• M12: 5,888,621 km (0.09 R)
• M13: 11,241,831 km (0.066 R)
• M14: 11,656,367 km (0.105 R)
• M15: 13,549,528 km (0.12 R)
• M16: 14,087,033 km (0.069 R)
• M17: 14,849,234 km (0.077 R)
• M18: 15,133,171 km (0.119 R)
• M19: 16,080,874 km (0.07 R)
• M20: 16,836,343 km (0.111 R)
• M21: 18,581,402 km (0.119 R)
• M22: 25,232,374 km (0.047 R)
• M23: 32,472,013 km (0.1 R)
• M24: 32,950,577 km (0.042 R)
• M25: 34,414,541 km (0.116 R)
• M26: 36,820,374 km (0.093 R)
• M27: 38,529,680 km (0.096 R)
• M28: 39,201,075 km (0.1 R)
• M29: 40,016,832 km (0.113 R)
• M30: 47,720,973 km (0.112 R)
• M31: 54,317,640 km (0.084 R)
• M32: 56,185,519 km (0.12 R)
• M33: 58,624,264 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.2

Radius: 3.8

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.05 AU - 9.65 AU

Year: 14667 Days

Day: 22.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,867,236 km

• M1: 47,273 km (0.09 R)
• M2: 231,877 km (0.087 R)
• M3: 403,017 km (0.089 R)
• M4: 559,945 km (0.052 R)
• M5: 1,514,379 km (0.082 R)
• M6: 1,683,126 km (0.111 R)
• M7: 4,088,959 km (0.097 R)
• M8: 4,874,048 km (0.077 R)
• M9: 5,172,346 km (0.094 R)
• M10: 5,729,598 km (0.05 R)
• M11: 7,489,767 km (0.105 R)
• M12: 12,531,365 km (0.065 R)
• M13: 16,694,374 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.9

Radius: 7.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 7.29 AU - 9.89 AU

Year: 16789 Days

Day: 18.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,867,236 km

• M1: 96,939 km (0.113 R)
• M2: 394,340 km (0.114 R)
• M3: 1,013,675 km (0.086 R)
• M4: 2,344,348 km (0.077 R)
• M5: 3,353,236 km (0.11 R)
• M6: 3,989,626 km (0.082 R)
• M7: 5,765,502 km (0.118 R)
• M8: 6,162,983 km (0.12 R)
• M9: 7,938,561 km (0.117 R)
• M10: 8,315,398 km (0.115 R)
• M11: 9,687,061 km (0.117 R)
• M12: 13,551,174 km (0.032 R)
• M13: 21,137,581 km (0.084 R)
• M14: 23,437,798 km (0.11 R)
• M15: 25,329,463 km (0.076 R)
• M16: 25,654,240 km (0.07 R)
• M17: 26,645,625 km (0.094 R)
• M18: 27,150,817 km (0.045 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 15,213 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit