🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.52 AU - 0.58 AU

Year: 268 Days

Day: 29.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 57,099,281 km

• M1: 124,017 km (0.095 R)
• M2: 652,845 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 12.9

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.77 AU - 1.01 AU

Year: 551 Days

Day: 13.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,099,281 km

• M1: 160,668 km (0.108 R)
• M2: 630,555 km (0.118 R)
• M3: 1,253,481 km (0.076 R)
• M4: 1,943,426 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.2

Radius: 8.1

Gravity: 10.95 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.86 AU - 1.4 AU

Year: 788 Days

Day: 9.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,099,281 km

• M1: 100,679 km (0.068 R)
• M2: 439,369 km (0.098 R)
• M3: 715,078 km (0.082 R)
• M4: 1,247,197 km (0.102 R)
• M5: 1,557,015 km (0.119 R)
• M6: 1,809,536 km (0.073 R)
• M7: 2,189,514 km (0.086 R)
• M8: 2,497,536 km (0.081 R)
• M9: 3,335,434 km (0.067 R)
• M10: 3,643,307 km (0.109 R)
• M11: 4,252,020 km (0.097 R)
• M12: 5,345,880 km (0.104 R)
• M13: 5,768,943 km (0.063 R)
• M14: 7,150,329 km (0.075 R)
• M15: 7,736,155 km (0.096 R)
• M16: 8,818,196 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.7

Radius: 14.3

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.36 AU - 1.76 AU

Year: 1278 Days

Day: 8.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,099,281 km

• M1: 178,021 km (0.107 R)
• M2: 725,400 km (0.087 R)
• M3: 1,258,118 km (0.038 R)
• M4: 1,723,816 km (0.11 R)
• M5: 2,240,228 km (0.11 R)
• M6: 3,554,595 km (0.073 R)
• M7: 5,043,991 km (0.105 R)
• M8: 5,492,336 km (0.053 R)
• M9: 7,255,796 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.8

Radius: 10.6

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.92 AU - 3.48 AU

Year: 3755 Days

Day: 11.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,099,281 km

• M1: 135,087 km (0.108 R)
• M2: 493,523 km (0.105 R)
• M3: 882,777 km (0.071 R)
• M4: 1,282,203 km (0.099 R)
• M5: 1,662,930 km (0.085 R)
• M6: 2,144,485 km (0.113 R)
• M7: 2,659,102 km (0.089 R)
• M8: 3,204,536 km (0.11 R)
• M9: 3,748,773 km (0.083 R)
• M10: 5,659,587 km (0.117 R)
• M11: 6,510,649 km (0.117 R)
• M12: 7,095,277 km (0.089 R)
• M13: 8,563,281 km (0.108 R)
• M14: 9,094,952 km (0.067 R)
• M15: 10,261,217 km (0.119 R)
• M16: 16,233,613 km (0.102 R)
• M17: 17,944,414 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.8

Radius: 13.6

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.98 AU - 3.6 AU

Year: 3915 Days

Day: 8.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,099,281 km

• M1: 169,195 km (0.071 R)
• M2: 698,472 km (0.097 R)
• M3: 1,519,316 km (0.099 R)
• M4: 2,734,649 km (0.106 R)
• M5: 4,064,425 km (0.091 R)
• M6: 7,314,139 km (0.116 R)
• M7: 8,903,168 km (0.082 R)
• M8: 9,679,132 km (0.04 R)
• M9: 10,797,675 km (0.112 R)
• M10: 12,093,193 km (0.1 R)
• M11: 14,098,403 km (0.092 R)
• M12: 18,142,033 km (0.104 R)
• M13: 18,821,357 km (0.076 R)
• M14: 20,894,335 km (0.102 R)
• M15: 22,900,891 km (0.101 R)
• M16: 24,506,674 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.9

Radius: 5.3

Gravity: 19.47 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.99 AU - 7.41 AU

Year: 11377 Days

Day: 19.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,099,281 km

• M1: 65,973 km (0.083 R)
• M2: 291,267 km (0.083 R)
• M3: 567,275 km (0.103 R)
• M4: 896,989 km (0.12 R)
• M5: 1,359,545 km (0.103 R)
• M6: 1,549,834 km (0.045 R)
• M7: 1,820,905 km (0.108 R)
• M8: 2,087,937 km (0.089 R)
• M9: 2,342,703 km (0.083 R)
• M10: 2,914,615 km (0.112 R)
• M11: 4,104,666 km (0.068 R)
• M12: 4,330,559 km (0.109 R)
• M13: 4,807,178 km (0.113 R)
• M14: 7,771,310 km (0.103 R)
• M15: 8,519,300 km (0.109 R)
• M16: 8,934,284 km (0.114 R)
• M17: 11,655,619 km (0.117 R)
• M18: 14,426,471 km (0.11 R)
• M19: 16,523,384 km (0.06 R)
• M20: 17,386,863 km (0.1 R)
• M21: 18,892,117 km (0.077 R)
• M22: 25,123,616 km (0.112 R)
• M23: 26,457,281 km (0.064 R)
• M24: 27,438,344 km (0.066 R)
• M25: 40,133,518 km (0.078 R)
• M26: 41,296,642 km (0.043 R)
• M27: 42,882,230 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 707.5

Radius: 4.4

Gravity: 36.54 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.66 AU - 7.82 AU

Year: 11479 Days

Day: 22.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 57,099,281 km

• M1: 107,710 km (0.076 R)
• M2: 424,409 km (0.089 R)
• M3: 761,154 km (0.078 R)
• M4: 976,575 km (0.093 R)
• M5: 1,322,296 km (0.043 R)
• M6: 1,473,090 km (0.089 R)
• M7: 1,842,896 km (0.032 R)
• M8: 2,103,795 km (0.066 R)
• M9: 2,509,953 km (0.104 R)
• M10: 3,738,750 km (0.108 R)
• M11: 4,826,027 km (0.112 R)
• M12: 5,705,812 km (0.115 R)
• M13: 6,687,623 km (0.075 R)
• M14: 8,226,088 km (0.077 R)
• M15: 9,274,021 km (0.104 R)
• M16: 11,119,909 km (0.115 R)
• M17: 11,805,366 km (0.105 R)
• M18: 14,830,086 km (0.102 R)
• M19: 15,103,251 km (0.068 R)
• M20: 15,241,031 km (0.088 R)
• M21: 15,379,708 km (0.052 R)
• M22: 16,813,305 km (0.118 R)
• M23: 21,296,902 km (0.116 R)
• M24: 24,185,787 km (0.081 R)
• M25: 26,316,659 km (0.102 R)
• M26: 28,464,286 km (0.089 R)
• M27: 32,642,405 km (0.048 R)
• M28: 32,988,724 km (0.098 R)
• M29: 34,042,192 km (0.089 R)
• M30: 37,085,911 km (0.118 R)
• M31: 38,867,172 km (0.097 R)
• M32: 41,780,292 km (0.103 R)
• M33: 43,151,207 km (0.098 R)
• M34: 44,835,679 km (0.117 R)
• M35: 46,272,267 km (0.032 R)
• M36: 47,443,618 km (0.072 R)
• M37: 47,591,421 km (0.085 R)
• M38: 48,036,475 km (0.084 R)
• M39: 49,997,852 km (0.077 R)
• M40: 51,854,960 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.9

Radius: 5.7

Gravity: 12.52 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.2 AU - 8.44 AU

Year: 11684 Days

Day: 17.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,099,281 km

• M1: 70,909 km (0.102 R)
• M2: 257,159 km (0.119 R)
• M3: 572,511 km (0.089 R)
• M4: 776,563 km (0.049 R)
• M5: 1,718,730 km (0.098 R)
• M6: 1,935,497 km (0.115 R)
• M7: 2,558,572 km (0.1 R)
• M8: 2,927,032 km (0.112 R)
• M9: 3,795,148 km (0.096 R)
• M10: 5,682,774 km (0.119 R)
• M11: 6,095,814 km (0.083 R)
• M12: 6,273,686 km (0.109 R)
• M13: 9,662,227 km (0.106 R)
• M14: 12,326,715 km (0.111 R)
• M15: 13,313,612 km (0.116 R)
• M16: 14,041,256 km (0.081 R)
• M17: 14,604,193 km (0.115 R)
• M18: 15,052,388 km (0.093 R)
• M19: 18,154,898 km (0.034 R)
• M20: 19,584,007 km (0.083 R)
• M21: 20,683,850 km (0.099 R)
• M22: 22,241,463 km (0.119 R)
• M23: 24,947,988 km (0.065 R)
• M24: 25,312,558 km (0.066 R)
• M25: 25,680,569 km (0.106 R)
• M26: 28,062,167 km (0.079 R)
• M27: 30,070,369 km (0.091 R)
• M28: 37,971,829 km (0.089 R)
• M29: 38,696,780 km (0.111 R)
• M30: 43,635,605 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.2

Radius: 5.9

Gravity: 18.1 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.83 AU - 8.23 AU

Year: 13555 Days

Day: 23.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,099,281 km

• M1: 74,500 km (0.05 R)
• M2: 378,931 km (0.093 R)
• M3: 648,058 km (0.094 R)
• M4: 832,512 km (0.117 R)
• M5: 1,183,319 km (0.058 R)
• M6: 1,537,417 km (0.103 R)
• M7: 2,030,941 km (0.118 R)
• M8: 2,374,567 km (0.057 R)
• M9: 3,104,754 km (0.059 R)
• M10: 3,508,369 km (0.114 R)
• M11: 5,064,786 km (0.093 R)
• M12: 5,918,690 km (0.062 R)
• M13: 6,108,081 km (0.111 R)
• M14: 6,741,478 km (0.098 R)
• M15: 7,862,565 km (0.068 R)
• M16: 8,184,500 km (0.101 R)
• M17: 8,515,260 km (0.036 R)
• M18: 9,457,877 km (0.106 R)
• M19: 10,523,462 km (0.113 R)
• M20: 12,329,557 km (0.086 R)
• M21: 14,332,523 km (0.087 R)
• M22: 15,518,236 km (0.091 R)
• M23: 18,322,448 km (0.101 R)
• M24: 21,005,336 km (0.062 R)
• M25: 21,536,109 km (0.085 R)
• M26: 25,205,296 km (0.096 R)
• M27: 26,107,521 km (0.102 R)
• M28: 26,515,475 km (0.076 R)
• M29: 30,043,740 km (0.1 R)
• M30: 31,286,151 km (0.063 R)
• M31: 34,724,957 km (0.118 R)
• M32: 40,139,502 km (0.088 R)
• M33: 41,230,968 km (0.045 R)
• M34: 41,645,205 km (0.112 R)
• M35: 50,368,705 km (0.103 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 11,974 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit