🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.56 AU - 0.66 AU

Year: 308 Days

Day: 46.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.7

Radius: 13.2

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.02 AU - 1.1 AU

Year: 705 Days

Day: 10.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,550,004 km

• M1: 235,617 km (0.093 R)
• M2: 830,119 km (0.041 R)
• M3: 1,612,366 km (0.119 R)
• M4: 1,937,891 km (0.112 R)
• M5: 2,363,497 km (0.098 R)
• M6: 2,727,618 km (0.087 R)
• M7: 3,411,280 km (0.102 R)
• M8: 3,685,643 km (0.119 R)
• M9: 4,142,664 km (0.075 R)
• M10: 4,419,869 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.1

Radius: 8.1

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.79 AU - 1.79 AU

Year: 1546 Days

Day: 8.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,550,004 km

• M1: 100,829 km (0.029 R)
• M2: 285,732 km (0.115 R)
• M3: 962,812 km (0.106 R)
• M4: 1,137,243 km (0.11 R)
• M5: 1,466,358 km (0.092 R)
• M6: 1,665,922 km (0.113 R)
• M7: 2,292,587 km (0.113 R)
• M8: 2,796,283 km (0.095 R)
• M9: 3,111,037 km (0.077 R)
• M10: 3,274,847 km (0.078 R)
• M11: 3,429,980 km (0.112 R)
• M12: 3,656,172 km (0.057 R)
• M13: 4,030,466 km (0.052 R)
• M14: 4,468,488 km (0.106 R)
• M15: 4,634,841 km (0.12 R)
• M16: 4,851,010 km (0.093 R)
• M17: 5,265,995 km (0.084 R)
• M18: 6,077,713 km (0.049 R)
• M19: 6,236,586 km (0.096 R)
• M20: 6,578,566 km (0.11 R)
• M21: 6,892,572 km (0.048 R)
• M22: 7,080,617 km (0.092 R)
• M23: 7,979,251 km (0.11 R)
• M24: 8,263,487 km (0.083 R)
• M25: 8,448,839 km (0.071 R)
• M26: 8,889,554 km (0.108 R)
• M27: 9,450,845 km (0.089 R)
• M28: 10,859,459 km (0.107 R)
• M29: 11,238,989 km (0.118 R)
• M30: 11,747,173 km (0.083 R)
• M31: 12,092,145 km (0.063 R)
• M32: 12,899,824 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.7

Radius: 12.3

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.23 AU - 2.45 AU

Year: 2311 Days

Day: 7.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,550,004 km

• M1: 153,637 km (0.107 R)
• M2: 549,473 km (0.089 R)
• M3: 1,590,225 km (0.113 R)
• M4: 2,208,364 km (0.04 R)
• M5: 2,773,096 km (0.087 R)
• M6: 3,032,498 km (0.118 R)
• M7: 3,291,602 km (0.104 R)
• M8: 3,857,082 km (0.099 R)
• M9: 4,484,047 km (0.077 R)
• M10: 4,831,413 km (0.026 R)
• M11: 5,112,507 km (0.106 R)
• M12: 5,970,601 km (0.118 R)
• M13: 6,514,838 km (0.06 R)
• M14: 7,598,225 km (0.051 R)
• M15: 8,111,496 km (0.111 R)
• M16: 8,725,146 km (0.119 R)
• M17: 9,732,089 km (0.055 R)
• M18: 11,454,859 km (0.107 R)
• M19: 11,865,206 km (0.114 R)
• M20: 12,208,533 km (0.039 R)
• M21: 12,607,061 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.9

Radius: 9.3

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.37 AU - 3.95 AU

Year: 4521 Days

Day: 10.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,550,004 km

• M1: 115,639 km (0.097 R)
• M2: 879,187 km (0.042 R)
• M3: 1,184,217 km (0.04 R)
• M4: 2,034,830 km (0.092 R)
• M5: 2,373,370 km (0.12 R)
• M6: 2,552,888 km (0.097 R)
• M7: 3,733,963 km (0.092 R)
• M8: 3,918,716 km (0.107 R)
• M9: 4,726,545 km (0.032 R)
• M10: 4,911,448 km (0.098 R)
• M11: 6,932,216 km (0.091 R)
• M12: 7,881,265 km (0.094 R)
• M13: 8,090,552 km (0.106 R)
• M14: 10,818,768 km (0.118 R)
• M15: 11,312,441 km (0.069 R)
• M16: 11,671,775 km (0.113 R)
• M17: 13,127,812 km (0.079 R)
• M18: 14,670,166 km (0.104 R)
• M19: 15,873,082 km (0.062 R)
• M20: 17,388,359 km (0.094 R)
• M21: 21,852,060 km (0.097 R)
• M22: 22,806,345 km (0.029 R)
• M23: 23,419,547 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.9

Radius: 11.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.56 AU - 5.7 AU

Year: 7502 Days

Day: 14.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,550,004 km

• M1: 226,192 km (0.1 R)
• M2: 493,075 km (0.103 R)
• M3: 751,729 km (0.072 R)
• M4: 1,955,095 km (0.04 R)
• M5: 2,927,930 km (0.047 R)
• M6: 3,707,334 km (0.086 R)
• M7: 4,206,543 km (0.059 R)
• M8: 5,554,719 km (0.119 R)
• M9: 5,929,312 km (0.101 R)
• M10: 6,165,975 km (0.067 R)
• M11: 6,809,845 km (0.114 R)
• M12: 7,128,039 km (0.081 R)
• M13: 7,486,476 km (0.052 R)
• M14: 9,674,943 km (0.119 R)
• M15: 10,016,325 km (0.087 R)
• M16: 11,565,112 km (0.106 R)
• M17: 11,938,508 km (0.117 R)
• M18: 12,275,403 km (0.05 R)
• M19: 14,259,220 km (0.061 R)
• M20: 14,674,055 km (0.067 R)
• M21: 15,047,751 km (0.106 R)
• M22: 17,037,701 km (0.096 R)
• M23: 17,848,073 km (0.072 R)
• M24: 20,229,073 km (0.115 R)
• M25: 21,616,593 km (0.03 R)
• M26: 23,460,387 km (0.114 R)
• M27: 27,122,244 km (0.065 R)
• M28: 29,579,389 km (0.119 R)
• M29: 30,915,597 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.4

Radius: 11.4

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.28 AU - 6.68 AU

Year: 8283 Days

Day: 7.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,550,004 km

• M1: 144,960 km (0.098 R)
• M2: 522,545 km (0.114 R)
• M3: 1,436,588 km (0.117 R)
• M4: 1,778,719 km (0.075 R)
• M5: 3,506,125 km (0.088 R)
• M6: 4,745,244 km (0.06 R)
• M7: 5,476,628 km (0.053 R)
• M8: 6,805,806 km (0.112 R)
• M9: 7,556,488 km (0.116 R)
• M10: 7,994,361 km (0.07 R)
• M11: 8,282,486 km (0.117 R)
• M12: 10,336,166 km (0.11 R)
• M13: 22,433,098 km (0.084 R)
• M14: 22,701,178 km (0.11 R)
• M15: 23,515,140 km (0.105 R)
• M16: 24,121,011 km (0.089 R)
• M17: 25,413,237 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 108.8

Radius: 4.1

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.92 AU - 8.32 AU

Year: 12267 Days

Day: 18.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 60,550,004 km

• M1: 113,844 km (0.102 R)
• M2: 222,452 km (0.112 R)
• M3: 313,408 km (0.097 R)
• M4: 522,396 km (0.079 R)
• M5: 692,638 km (0.037 R)
• M6: 1,123,031 km (0.047 R)
• M7: 1,203,515 km (0.115 R)
• M8: 1,635,554 km (0.1 R)
• M9: 2,073,875 km (0.105 R)
• M10: 5,042,795 km (0.109 R)
• M11: 5,465,409 km (0.079 R)
• M12: 6,010,992 km (0.107 R)
• M13: 6,307,345 km (0.052 R)
• M14: 6,638,705 km (0.074 R)
• M15: 7,356,625 km (0.113 R)
• M16: 7,445,187 km (0.106 R)
• M17: 7,624,106 km (0.095 R)
• M18: 9,835,013 km (0.088 R)
• M19: 11,539,681 km (0.107 R)
• M20: 12,100,523 km (0.115 R)
• M21: 12,752,321 km (0.1 R)
• M22: 13,541,001 km (0.089 R)
• M23: 16,444,396 km (0.118 R)
• M24: 17,203,157 km (0.099 R)
• M25: 17,611,709 km (0.111 R)
• M26: 20,360,569 km (0.101 R)
• M27: 20,854,841 km (0.045 R)
• M28: 21,154,037 km (0.102 R)
• M29: 21,455,626 km (0.06 R)
• M30: 22,372,810 km (0.078 R)
• M31: 23,467,268 km (0.025 R)
• M32: 24,587,906 km (0.046 R)
• M33: 24,912,833 km (0.11 R)
• M34: 26,345,831 km (0.105 R)
• M35: 27,761,625 km (0.101 R)
• M36: 28,920,859 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 851.4

Radius: 6.1

Gravity: 22.88 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 6.68 AU - 7.92 AU

Year: 12735 Days

Day: 19.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,550,004 km

• M1: 158,723 km (0.107 R)
• M2: 717,471 km (0.088 R)
• M3: 1,491,491 km (0.079 R)
• M4: 1,682,527 km (0.1 R)
• M5: 2,543,463 km (0.113 R)
• M6: 4,101,226 km (0.108 R)
• M7: 4,953,485 km (0.082 R)
• M8: 7,740,044 km (0.08 R)
• M9: 9,655,196 km (0.101 R)
• M10: 9,897,395 km (0.099 R)
• M11: 11,677,460 km (0.095 R)
• M12: 12,430,985 km (0.1 R)
• M13: 14,242,316 km (0.087 R)
• M14: 16,428,090 km (0.063 R)
• M15: 22,800,211 km (0.099 R)
• M16: 23,849,940 km (0.028 R)
• M17: 24,691,428 km (0.079 R)
• M18: 25,941,617 km (0.107 R)
• M19: 31,774,887 km (0.07 R)
• M20: 39,167,266 km (0.116 R)
• M21: 40,540,574 km (0.113 R)
• M22: 44,387,483 km (0.069 R)
• M23: 49,059,874 km (0.105 R)
• M24: 50,706,348 km (0.112 R)
• M25: 54,309,562 km (0.1 R)
• M26: 55,925,070 km (0.113 R)
• M27: 58,749,328 km (0.092 R)
• M28: 60,429,162 km (0.11 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: 509 - 18,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit