🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.5 AU - 0.74 AU

Year: 320 Days

Day: 33.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 121.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,953,932 km

• M1: 502,499 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.3

Radius: 14.2

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.63 AU - 0.85 AU

Year: 418 Days

Day: 5.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,953,932 km

• M1: 176,525 km (0.107 R)
• M2: 674,088 km (0.107 R)
• M3: 1,126,023 km (0.093 R)
• M4: 1,596,658 km (0.116 R)
• M5: 2,226,016 km (0.056 R)
• M6: 2,731,956 km (0.103 R)
• M7: 3,561,626 km (0.059 R)
• M8: 4,131,444 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.6

Radius: 11.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.98 AU - 1.38 AU

Year: 841 Days

Day: 6.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,953,932 km

• M1: 140,772 km (0.116 R)
• M2: 491,579 km (0.109 R)
• M3: 1,105,528 km (0.104 R)
• M4: 1,533,977 km (0.085 R)
• M5: 2,293,635 km (0.037 R)
• M6: 2,941,094 km (0.111 R)
• M7: 4,719,514 km (0.103 R)
• M8: 5,632,061 km (0.12 R)
• M9: 6,317,219 km (0.118 R)
• M10: 6,811,640 km (0.109 R)
• M11: 7,193,563 km (0.046 R)
• M12: 8,248,976 km (0.034 R)
• M13: 8,787,828 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688

Radius: 14

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.14 AU - 1.54 AU

Year: 1018 Days

Day: 9.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,953,932 km

• M1: 176,525 km (0.068 R)
• M2: 703,708 km (0.072 R)
• M3: 1,297,762 km (0.066 R)
• M4: 1,767,349 km (0.089 R)
• M5: 2,276,431 km (0.099 R)
• M6: 2,947,826 km (0.116 R)
• M7: 3,598,278 km (0.103 R)
• M8: 4,242,745 km (0.108 R)
• M9: 4,726,246 km (0.027 R)
• M10: 5,846,883 km (0.026 R)
• M11: 6,559,717 km (0.101 R)
• M12: 7,525,521 km (0.052 R)
• M13: 8,343,522 km (0.075 R)
• M14: 8,995,320 km (0.071 R)
• M15: 9,710,248 km (0.114 R)
• M16: 10,431,908 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.7

Radius: 13.8

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.2 AU - 1.52 AU

Year: 1040 Days

Day: 6.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,953,932 km

• M1: 172,187 km (0.051 R)
• M2: 656,735 km (0.069 R)
• M3: 1,260,960 km (0.101 R)
• M4: 2,133,565 km (0.09 R)
• M5: 2,860,910 km (0.078 R)
• M6: 3,672,777 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.8

Radius: 11.6

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.35 AU - 2.19 AU

Year: 1545 Days

Day: 9.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,953,932 km

• M1: 144,362 km (0.105 R)
• M2: 653,144 km (0.045 R)
• M3: 1,374,954 km (0.101 R)
• M4: 1,771,388 km (0.097 R)
• M5: 2,525,511 km (0.119 R)
• M6: 2,941,693 km (0.099 R)
• M7: 3,760,741 km (0.091 R)
• M8: 4,418,523 km (0.081 R)
• M9: 5,758,620 km (0.101 R)
• M10: 7,326,556 km (0.12 R)
• M11: 7,759,642 km (0.033 R)
• M12: 8,887,161 km (0.037 R)
• M13: 9,665,518 km (0.105 R)
• M14: 10,187,017 km (0.114 R)
• M15: 11,902,306 km (0.072 R)
• M16: 12,540,042 km (0.083 R)
• M17: 13,121,678 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.1

Radius: 15

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.44 AU - 2.66 AU

Year: 2671 Days

Day: 13.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 99.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,953,932 km

• M1: 186,549 km (0.089 R)
• M2: 891,155 km (0.071 R)
• M3: 1,383,481 km (0.079 R)
• M4: 1,928,017 km (0.09 R)
• M5: 2,484,073 km (0.047 R)
• M6: 3,113,431 km (0.118 R)
• M7: 4,008,475 km (0.028 R)
• M8: 4,696,625 km (0.116 R)
• M9: 5,462,865 km (0.087 R)
• M10: 5,929,760 km (0.08 R)
• M11: 6,451,558 km (0.037 R)
• M12: 7,843,566 km (0.111 R)
• M13: 8,473,971 km (0.061 R)
• M14: 11,424,490 km (0.108 R)
• M15: 12,323,723 km (0.058 R)
• M16: 13,455,132 km (0.095 R)
• M17: 16,992,673 km (0.098 R)
• M18: 18,221,918 km (0.108 R)
• M19: 19,152,567 km (0.063 R)
• M20: 20,545,772 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.7

Radius: 12.3

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.97 AU - 3.29 AU

Year: 3633 Days

Day: 10.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,953,932 km

• M1: 153,188 km (0.114 R)
• M2: 638,185 km (0.073 R)
• M3: 1,027,438 km (0.111 R)
• M4: 1,455,438 km (0.099 R)
• M5: 1,851,722 km (0.097 R)
• M6: 2,721,185 km (0.101 R)
• M7: 3,622,662 km (0.091 R)
• M8: 4,342,826 km (0.083 R)
• M9: 5,680,680 km (0.032 R)
• M10: 6,624,044 km (0.117 R)
• M11: 7,149,282 km (0.106 R)
• M12: 9,885,577 km (0.084 R)
• M13: 10,326,741 km (0.052 R)
• M14: 10,780,920 km (0.075 R)
• M15: 11,378,414 km (0.089 R)
• M16: 12,827,120 km (0.112 R)
• M17: 13,991,739 km (0.069 R)
• M18: 18,265,900 km (0.118 R)
• M19: 18,687,616 km (0.099 R)
• M20: 20,439,707 km (0.105 R)
• M21: 21,091,355 km (0.106 R)
• M22: 21,756,617 km (0.073 R)
• M23: 22,367,425 km (0.09 R)
• M24: 23,623,149 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358.2

Radius: 4.8

Gravity: 15.55 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 8.12 AU - 12.88 AU

Year: 22320 Days

Day: 18.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 65,953,932 km

• M1: 59,690 km (0.089 R)
• M2: 256,411 km (0.041 R)
• M3: 450,439 km (0.074 R)
• M4: 644,168 km (0.072 R)
• M5: 893,249 km (0.062 R)
• M6: 1,506,151 km (0.106 R)
• M7: 1,985,014 km (0.097 R)
• M8: 2,363,796 km (0.091 R)
• M9: 3,108,494 km (0.079 R)
• M10: 3,290,405 km (0.109 R)
• M11: 4,601,182 km (0.119 R)
• M12: 5,118,042 km (0.083 R)
• M13: 6,225,815 km (0.08 R)
• M14: 7,438,605 km (0.1 R)
• M15: 8,296,399 km (0.117 R)
• M16: 10,726,616 km (0.098 R)
• M17: 12,327,164 km (0.119 R)
• M18: 13,731,140 km (0.114 R)
• M19: 15,387,188 km (0.109 R)
• M20: 17,989,443 km (0.117 R)
• M21: 20,778,995 km (0.114 R)
• M22: 21,054,404 km (0.11 R)
• M23: 26,331,020 km (0.097 R)
• M24: 26,978,779 km (0.091 R)
• M25: 30,613,858 km (0.117 R)
• M26: 35,208,457 km (0.071 R)
• M27: 40,100,008 km (0.117 R)
• M28: 48,417,500 km (0.106 R)
• M29: 50,373,343 km (0.066 R)
• M30: 52,043,005 km (0.109 R)
• M31: 56,555,774 km (0.06 R)
• M32: 58,723,896 km (0.114 R)
• M33: 60,759,325 km (0.109 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 12,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit