🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.47 AU - 0.61 AU

Year: 252 Days

Day: 20.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,790,280 km

• M1: 41,887 km (0.053 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.64 AU - 0.7 AU

Year: 349 Days

Day: 36.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.7

Radius: 8.4

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.79 AU - 0.81 AU

Year: 455 Days

Day: 5.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,790,280 km

• M1: 104,419 km (0.083 R)
• M2: 471,981 km (0.11 R)
• M3: 849,866 km (0.086 R)
• M4: 1,210,546 km (0.036 R)
• M5: 1,568,683 km (0.11 R)
• M6: 1,956,740 km (0.098 R)
• M7: 2,344,647 km (0.057 R)
• M8: 2,615,120 km (0.117 R)
• M9: 2,885,743 km (0.089 R)
• M10: 3,555,044 km (0.033 R)
• M11: 3,901,064 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.8

Radius: 10.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.25 AU - 1.93 AU

Year: 1275 Days

Day: 5.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,790,280 km

• M1: 132,245 km (0.098 R)
• M2: 522,695 km (0.066 R)
• M3: 1,114,504 km (0.102 R)
• M4: 1,544,598 km (0.068 R)
• M5: 2,167,972 km (0.104 R)
• M6: 3,556,989 km (0.052 R)
• M7: 4,699,617 km (0.04 R)
• M8: 5,111,161 km (0.116 R)
• M9: 5,445,512 km (0.066 R)
• M10: 6,180,337 km (0.093 R)
• M11: 6,675,207 km (0.042 R)
• M12: 8,784,237 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 15

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.61 AU - 2.83 AU

Year: 2852 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,790,280 km

• M1: 186,549 km (0.118 R)
• M2: 1,041,052 km (0.101 R)
• M3: 1,543,551 km (0.088 R)
• M4: 2,108,881 km (0.103 R)
• M5: 2,868,539 km (0.11 R)
• M6: 4,088,360 km (0.058 R)
• M7: 5,106,823 km (0.067 R)
• M8: 5,767,896 km (0.115 R)
• M9: 6,687,025 km (0.106 R)
• M10: 8,071,852 km (0.058 R)
• M11: 9,381,881 km (0.059 R)
• M12: 10,584,199 km (0.083 R)
• M13: 13,294,314 km (0.029 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.8

Radius: 13.8

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.76 AU - 4.48 AU

Year: 4379 Days

Day: 5.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,790,280 km

• M1: 171,738 km (0.04 R)
• M2: 647,908 km (0.107 R)
• M3: 1,570,030 km (0.054 R)
• M4: 2,386,984 km (0.096 R)
• M5: 3,412,627 km (0.085 R)
• M6: 4,094,344 km (0.068 R)
• M7: 5,533,924 km (0.093 R)
• M8: 7,288,707 km (0.062 R)
• M9: 9,962,171 km (0.064 R)
• M10: 10,557,870 km (0.034 R)
• M11: 13,233,128 km (0.109 R)
• M12: 14,918,797 km (0.075 R)
• M13: 21,737,767 km (0.116 R)
• M14: 22,596,609 km (0.097 R)
• M15: 25,623,123 km (0.06 R)
• M16: 27,398,252 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986.6

Radius: 5.6

Gravity: 31.46 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.41 AU - 7.91 AU

Year: 12182 Days

Day: 18.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,790,280 km

• M1: 69,862 km (0.033 R)
• M2: 753,524 km (0.057 R)
• M3: 1,652,907 km (0.099 R)
• M4: 2,015,682 km (0.105 R)
• M5: 3,044,017 km (0.066 R)
• M6: 3,616,678 km (0.052 R)
• M7: 4,938,974 km (0.107 R)
• M8: 5,323,141 km (0.06 R)
• M9: 5,727,205 km (0.116 R)
• M10: 6,679,246 km (0.106 R)
• M11: 7,018,833 km (0.109 R)
• M12: 7,236,947 km (0.115 R)
• M13: 10,669,919 km (0.101 R)
• M14: 13,659,183 km (0.112 R)
• M15: 14,345,389 km (0.1 R)
• M16: 16,236,904 km (0.106 R)
• M17: 16,928,495 km (0.083 R)
• M18: 18,043,298 km (0.08 R)
• M19: 18,785,154 km (0.08 R)
• M20: 19,892,478 km (0.105 R)
• M21: 22,330,175 km (0.059 R)
• M22: 23,377,958 km (0.052 R)
• M23: 24,160,206 km (0.067 R)
• M24: 27,142,589 km (0.099 R)
• M25: 27,356,963 km (0.081 R)
• M26: 42,241,502 km (0.027 R)
• M27: 44,136,009 km (0.102 R)
• M28: 46,238,907 km (0.109 R)
• M29: 52,281,464 km (0.089 R)
• M30: 57,584,409 km (0.082 R)
• M31: 57,938,358 km (0.102 R)
• M32: 59,548,928 km (0.047 R)
• M33: 60,456,539 km (0.073 R)
• M34: 61,005,563 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.8

Radius: 6.6

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.81 AU - 9.45 AU

Year: 13400 Days

Day: 20 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,790,280 km

• M1: 82,578 km (0.098 R)
• M2: 420,669 km (0.029 R)
• M3: 741,108 km (0.078 R)
• M4: 1,554,621 km (0.071 R)
• M5: 2,296,627 km (0.109 R)
• M6: 3,253,604 km (0.069 R)
• M7: 3,555,343 km (0.114 R)
• M8: 4,157,474 km (0.11 R)
• M9: 4,513,368 km (0.089 R)
• M10: 7,132,527 km (0.108 R)
• M11: 7,427,534 km (0.067 R)
• M12: 9,222,110 km (0.117 R)
• M13: 9,827,832 km (0.12 R)
• M14: 11,287,459 km (0.091 R)
• M15: 12,762,643 km (0.094 R)
• M16: 13,771,531 km (0.12 R)
• M17: 15,175,208 km (0.037 R)
• M18: 19,217,642 km (0.108 R)
• M19: 20,625,358 km (0.116 R)
• M20: 26,242,458 km (0.083 R)
• M21: 26,743,611 km (0.074 R)
• M22: 27,149,171 km (0.094 R)
• M23: 28,180,798 km (0.119 R)
• M24: 29,238,455 km (0.113 R)
• M25: 31,096,610 km (0.068 R)
• M26: 33,032,107 km (0.107 R)
• M27: 39,318,210 km (0.073 R)
• M28: 40,504,371 km (0.08 R)
• M29: 40,771,254 km (0.032 R)
• M30: 41,986,438 km (0.081 R)
• M31: 45,632,437 km (0.05 R)
• M32: 47,089,071 km (0.05 R)
• M33: 51,644,925 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.3

Radius: 6.9

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.47 AU - 11.39 AU

Year: 21417 Days

Day: 17 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 67,790,280 km

• M1: 86,168 km (0.109 R)
• M2: 312,959 km (0.105 R)
• M3: 624,272 km (0.073 R)
• M4: 995,873 km (0.114 R)
• M5: 1,508,096 km (0.039 R)
• M6: 2,427,674 km (0.099 R)
• M7: 3,020,082 km (0.1 R)
• M8: 3,298,184 km (0.102 R)
• M9: 5,163,371 km (0.082 R)
• M10: 5,488,147 km (0.109 R)
• M11: 5,826,538 km (0.064 R)
• M12: 6,059,761 km (0.085 R)
• M13: 8,849,612 km (0.118 R)
• M14: 9,581,145 km (0.092 R)
• M15: 9,797,314 km (0.048 R)
• M16: 10,016,774 km (0.077 R)
• M17: 10,522,565 km (0.1 R)
• M18: 10,752,796 km (0.114 R)
• M19: 12,588,212 km (0.106 R)
• M20: 13,310,620 km (0.078 R)
• M21: 15,054,632 km (0.11 R)
• M22: 19,160,046 km (0.088 R)
• M23: 20,470,075 km (0.071 R)
• M24: 20,739,052 km (0.093 R)
• M25: 28,478,647 km (0.083 R)
• M26: 29,151,987 km (0.084 R)
• M27: 29,378,778 km (0.032 R)
• M28: 33,789,671 km (0.115 R)
• M29: 34,039,948 km (0.115 R)
• M30: 38,214,477 km (0.094 R)
• M31: 39,864,093 km (0.12 R)
• M32: 43,599,851 km (0.097 R)
• M33: 51,758,918 km (0.052 R)
• M34: 58,505,932 km (0.088 R)
• M35: 59,593,359 km (0.117 R)
• M36: 61,995,602 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.5

Radius: 4.1

Gravity: 22.64 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 8.68 AU - 12.92 AU

Year: 22567 Days

Day: 20 Hours

Environment

Temp: -231 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,790,280 km

• M1: 51,162 km (0.12 R)
• M2: 288,873 km (0.104 R)
• M3: 733,628 km (0.106 R)
• M4: 1,109,418 km (0.067 R)
• M5: 1,490,743 km (0.106 R)
• M6: 2,148,076 km (0.073 R)
• M7: 4,038,395 km (0.118 R)
• M8: 5,105,626 km (0.051 R)
• M9: 5,900,290 km (0.047 R)
• M10: 6,182,730 km (0.096 R)
• M11: 6,348,036 km (0.047 R)
• M12: 8,879,082 km (0.096 R)
• M13: 10,308,041 km (0.096 R)
• M14: 10,956,249 km (0.085 R)
• M15: 12,139,269 km (0.098 R)
• M16: 22,498,024 km (0.113 R)
• M17: 23,285,507 km (0.087 R)
• M18: 28,400,557 km (0.066 R)
• M19: 34,344,829 km (0.089 R)
• M20: 41,358,426 km (0.099 R)
• M21: 46,371,002 km (0.112 R)
• M22: 65,778,333 km (0.113 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: 526 - 19,024 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit