🌌 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: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 15.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.5

Radius: 11.5

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.99 AU - 1.27 AU

Year: 788 Days

Day: 9.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,222,201 km

• M1: 143,016 km (0.108 R)
• M2: 1,069,026 km (0.119 R)
• M3: 1,578,557 km (0.097 R)
• M4: 2,352,427 km (0.089 R)
• M5: 3,019,483 km (0.102 R)
• M6: 3,475,009 km (0.112 R)
• M7: 3,838,981 km (0.105 R)
• M8: 4,228,533 km (0.107 R)
• M9: 4,978,916 km (0.101 R)
• M10: 6,525,160 km (0.094 R)
• M11: 7,082,861 km (0.034 R)
• M12: 8,447,642 km (0.111 R)
• M13: 9,247,392 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981

Radius: 12.3

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.09 AU - 3.01 AU

Year: 2671 Days

Day: 5.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,222,201 km

• M1: 153,039 km (0.039 R)
• M2: 641,476 km (0.109 R)
• M3: 1,035,516 km (0.035 R)
• M4: 1,588,131 km (0.112 R)
• M5: 2,333,577 km (0.113 R)
• M6: 2,901,899 km (0.05 R)
• M7: 3,318,679 km (0.052 R)
• M8: 4,082,675 km (0.037 R)
• M9: 5,457,480 km (0.119 R)
• M10: 5,878,748 km (0.111 R)
• M11: 7,985,086 km (0.077 R)
• M12: 9,282,099 km (0.085 R)
• M13: 10,755,638 km (0.075 R)
• M14: 11,677,161 km (0.086 R)
• M15: 12,113,089 km (0.095 R)
• M16: 13,439,125 km (0.119 R)
• M17: 14,309,635 km (0.119 R)
• M18: 15,268,707 km (0.084 R)
• M19: 16,109,297 km (0.1 R)
• M20: 16,814,801 km (0.114 R)
• M21: 17,882,780 km (0.109 R)
• M22: 18,287,442 km (0.113 R)
• M23: 19,477,493 km (0.104 R)
• M24: 21,358,537 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.4

Radius: 10.6

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.64 AU - 3.06 AU

Year: 3156 Days

Day: 6.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,222,201 km

• M1: 131,796 km (0.083 R)
• M2: 997,369 km (0.093 R)
• M3: 1,437,785 km (0.102 R)
• M4: 1,787,994 km (0.085 R)
• M5: 2,207,765 km (0.113 R)
• M6: 2,909,679 km (0.032 R)
• M7: 3,428,334 km (0.12 R)
• M8: 4,234,218 km (0.039 R)
• M9: 5,030,827 km (0.092 R)
• M10: 5,522,705 km (0.07 R)
• M11: 6,866,991 km (0.071 R)
• M12: 7,644,451 km (0.1 R)
• M13: 8,572,407 km (0.077 R)
• M14: 9,112,455 km (0.084 R)
• M15: 9,641,284 km (0.113 R)
• M16: 11,731,615 km (0.117 R)
• M17: 12,357,682 km (0.095 R)
• M18: 14,326,689 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.9

Radius: 9.3

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.68 AU - 3.76 AU

Year: 3790 Days

Day: 9.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,222,201 km

• M1: 115,639 km (0.084 R)
• M2: 412,741 km (0.05 R)
• M3: 811,120 km (0.05 R)
• M4: 1,170,005 km (0.111 R)
• M5: 1,547,590 km (0.077 R)
• M6: 1,868,029 km (0.08 R)
• M7: 2,418,698 km (0.115 R)
• M8: 2,988,217 km (0.118 R)
• M9: 3,509,865 km (0.113 R)
• M10: 4,091,053 km (0.103 R)
• M11: 4,642,471 km (0.11 R)
• M12: 5,020,804 km (0.114 R)
• M13: 6,685,678 km (0.085 R)
• M14: 8,760,751 km (0.101 R)
• M15: 9,983,414 km (0.08 R)
• M16: 11,443,190 km (0.041 R)
• M17: 11,785,919 km (0.108 R)
• M18: 12,627,706 km (0.091 R)
• M19: 12,947,696 km (0.109 R)
• M20: 13,508,837 km (0.11 R)
• M21: 17,222,904 km (0.107 R)
• M22: 17,787,486 km (0.032 R)
• M23: 18,247,948 km (0.087 R)
• M24: 19,013,291 km (0.037 R)
• M25: 19,799,727 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.9

Radius: 10.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.74 AU - 5.36 AU

Year: 6367 Days

Day: 7.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,222,201 km

• M1: 131,945 km (0.049 R)
• M2: 591,360 km (0.112 R)
• M3: 1,554,771 km (0.119 R)
• M4: 1,916,947 km (0.109 R)
• M5: 3,049,104 km (0.1 R)
• M6: 3,381,361 km (0.056 R)
• M7: 3,738,002 km (0.079 R)
• M8: 4,269,673 km (0.045 R)
• M9: 4,741,654 km (0.077 R)
• M10: 6,172,707 km (0.049 R)
• M11: 8,105,512 km (0.079 R)
• M12: 10,136,303 km (0.118 R)
• M13: 11,766,022 km (0.096 R)
• M14: 13,288,480 km (0.111 R)
• M15: 13,786,641 km (0.075 R)
• M16: 14,879,303 km (0.065 R)
• M17: 15,416,659 km (0.106 R)
• M18: 17,762,802 km (0.102 R)
• M19: 18,640,792 km (0.062 R)
• M20: 19,405,985 km (0.05 R)
• M21: 22,521,959 km (0.111 R)
• M22: 25,530,672 km (0.051 R)
• M23: 27,352,475 km (0.1 R)
• M24: 31,741,078 km (0.095 R)
• M25: 33,234,962 km (0.076 R)
• M26: 34,463,460 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754

Radius: 13.7

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.43 AU - 7.01 AU

Year: 8974 Days

Day: 6.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,222,201 km

• M1: 171,290 km (0.118 R)
• M2: 679,174 km (0.105 R)
• M3: 1,114,055 km (0.079 R)
• M4: 2,240,228 km (0.085 R)
• M5: 3,378,668 km (0.092 R)
• M6: 3,817,887 km (0.081 R)
• M7: 4,267,728 km (0.114 R)
• M8: 4,963,807 km (0.113 R)
• M9: 6,113,766 km (0.062 R)
• M10: 6,961,687 km (0.115 R)
• M11: 8,444,650 km (0.079 R)
• M12: 9,167,657 km (0.067 R)
• M13: 11,370,635 km (0.088 R)
• M14: 11,861,466 km (0.111 R)
• M15: 12,480,651 km (0.094 R)
• M16: 13,479,815 km (0.109 R)
• M17: 14,030,036 km (0.068 R)
• M18: 15,045,357 km (0.099 R)
• M19: 16,798,943 km (0.061 R)
• M20: 17,725,253 km (0.082 R)
• M21: 23,658,903 km (0.078 R)
• M22: 29,248,478 km (0.086 R)
• M23: 30,798,462 km (0.064 R)
• M24: 32,730,069 km (0.115 R)
• M25: 45,089,696 km (0.119 R)
• M26: 46,046,374 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.9

Radius: 10

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.34 AU - 7.1 AU

Year: 8974 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,222,201 km

• M1: 124,465 km (0.069 R)
• M2: 489,933 km (0.114 R)
• M3: 845,677 km (0.093 R)
• M4: 1,267,992 km (0.093 R)
• M5: 1,705,266 km (0.083 R)
• M6: 2,055,924 km (0.116 R)
• M7: 2,439,343 km (0.08 R)
• M8: 2,905,490 km (0.107 R)
• M9: 3,510,314 km (0.082 R)
• M10: 3,886,253 km (0.111 R)
• M11: 4,996,569 km (0.108 R)
• M12: 5,311,472 km (0.112 R)
• M13: 6,427,622 km (0.067 R)
• M14: 7,221,239 km (0.118 R)
• M15: 8,964,652 km (0.03 R)
• M16: 11,964,987 km (0.095 R)
• M17: 13,164,164 km (0.114 R)
• M18: 15,577,327 km (0.117 R)
• M19: 16,946,746 km (0.058 R)
• M20: 17,660,777 km (0.077 R)
• M21: 20,451,525 km (0.094 R)
• M22: 21,535,511 km (0.081 R)
• M23: 22,232,039 km (0.094 R)
• M24: 23,817,477 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.3

Radius: 4.9

Gravity: 16.88 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.38 AU - 7.18 AU

Year: 11581 Days

Day: 18.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 45,222,201 km

• M1: 61,186 km (0.113 R)
• M2: 271,071 km (0.08 R)
• M3: 572,511 km (0.101 R)
• M4: 1,013,077 km (0.104 R)
• M5: 1,233,734 km (0.117 R)
• M6: 2,128,628 km (0.097 R)
• M7: 2,379,354 km (0.091 R)
• M8: 2,669,574 km (0.025 R)
• M9: 2,939,897 km (0.071 R)
• M10: 3,115,226 km (0.101 R)
• M11: 3,415,170 km (0.076 R)
• M12: 3,584,365 km (0.029 R)
• M13: 4,153,435 km (0.039 R)
• M14: 5,501,462 km (0.094 R)
• M15: 6,364,342 km (0.077 R)
• M16: 7,234,852 km (0.097 R)
• M17: 10,070,629 km (0.098 R)
• M18: 11,037,032 km (0.062 R)
• M19: 12,175,322 km (0.066 R)
• M20: 12,571,607 km (0.09 R)
• M21: 12,976,419 km (0.081 R)
• M22: 13,330,217 km (0.112 R)
• M23: 15,196,600 km (0.113 R)
• M24: 17,300,844 km (0.11 R)
• M25: 18,311,976 km (0.093 R)
• M26: 23,875,371 km (0.054 R)
• M27: 24,855,088 km (0.035 R)
• M28: 25,218,012 km (0.047 R)
• M29: 28,446,035 km (0.116 R)
• M30: 31,938,996 km (0.079 R)
• M31: 32,367,893 km (0.12 R)
• M32: 39,147,220 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.4

Radius: 4

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.16 AU - 12.38 AU

Year: 21591 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,222,201 km

• M1: 49,816 km (0.082 R)
• M2: 214,673 km (0.076 R)
• M3: 450,439 km (0.116 R)
• M4: 938,876 km (0.053 R)
• M5: 1,475,185 km (0.099 R)
• M6: 1,953,449 km (0.097 R)
• M7: 2,375,165 km (0.073 R)
• M8: 2,587,594 km (0.105 R)
• M9: 2,791,646 km (0.052 R)
• M10: 3,140,359 km (0.114 R)
• M11: 3,301,775 km (0.104 R)
• M12: 4,276,854 km (0.075 R)
• M13: 5,267,191 km (0.114 R)
• M14: 6,851,283 km (0.089 R)
• M15: 10,972,705 km (0.106 R)
• M16: 12,685,600 km (0.079 R)
• M17: 15,810,999 km (0.087 R)
• M18: 19,030,794 km (0.049 R)
• M19: 20,194,067 km (0.118 R)
• M20: 21,240,055 km (0.101 R)
• M21: 26,919,389 km (0.104 R)
• M22: 27,304,603 km (0.11 R)
• M23: 32,217,996 km (0.074 R)
• M24: 33,643,514 km (0.084 R)
• M25: 36,619,464 km (0.117 R)
• M26: 37,092,343 km (0.081 R)
• M27: 43,880,496 km (0.115 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 15,925 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit