🌌 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: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.43 AU - 0.67 AU

Year: 268 Days

Day: 31.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,215,309 km

• M1: 399,127 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.57 AU - 0.65 AU

Year: 313 Days

Day: 42.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.7

Radius: 8.7

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.62 AU - 0.9 AU

Year: 435 Days

Day: 10.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,215,309 km

• M1: 110,852 km (0.111 R)
• M2: 174,431 km (0.093 R)
• M3: 273,615 km (0.103 R)
• M4: 340,186 km (0.031 R)
• M5: 445,502 km (0.101 R)
• M6: 537,206 km (0.071 R)
• M7: 610,659 km (0.102 R)
• M8: 675,734 km (0.099 R)
• M9: 758,162 km (0.046 R)
• M10: 822,339 km (0.084 R)
• M11: 1,017,116 km (0.116 R)
• M12: 1,152,053 km (0.12 R)
• M13: 1,216,829 km (0.09 R)
• M14: 1,300,903 km (0.111 R)
• M15: 1,360,742 km (0.071 R)
• M16: 1,450,800 km (0.068 R)
• M17: 1,584,391 km (0.108 R)
• M18: 1,707,809 km (0.081 R)
• M19: 1,767,948 km (0.12 R)
• M20: 1,837,361 km (0.051 R)
• M21: 1,934,600 km (0.09 R)
• M22: 2,124,888 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.6

Radius: 9.2

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.92 AU - 1.34 AU

Year: 788 Days

Day: 14.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,215,309 km

• M1: 115,789 km (0.064 R)
• M2: 197,170 km (0.062 R)
• M3: 279,449 km (0.071 R)
• M4: 352,004 km (0.028 R)
• M5: 437,125 km (0.113 R)
• M6: 560,094 km (0.08 R)
• M7: 628,909 km (0.107 R)
• M8: 739,313 km (0.116 R)
• M9: 926,160 km (0.075 R)
• M10: 1,128,716 km (0.1 R)
• M11: 1,187,059 km (0.111 R)
• M12: 1,246,599 km (0.07 R)
• M13: 1,303,895 km (0.107 R)
• M14: 1,414,597 km (0.06 R)
• M15: 1,532,032 km (0.101 R)
• M16: 1,666,819 km (0.039 R)
• M17: 1,741,020 km (0.066 R)
• M18: 1,798,316 km (0.087 R)
• M19: 1,863,541 km (0.105 R)
• M20: 1,974,094 km (0.103 R)
• M21: 2,071,781 km (0.113 R)
• M22: 2,171,114 km (0.11 R)
• M23: 2,244,716 km (0.092 R)
• M24: 2,311,437 km (0.079 R)
• M25: 2,486,915 km (0.11 R)
• M26: 2,716,548 km (0.056 R)
• M27: 2,825,605 km (0.049 R)
• M28: 2,889,333 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.8

Radius: 12.1

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.61 AU - 4.35 AU

Year: 5209 Days

Day: 5 Hours

Environment

Temp: -208 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,215,309 km

• M1: 240,404 km (0.07 R)
• M2: 366,964 km (0.096 R)
• M3: 448,943 km (0.056 R)
• M4: 1,162,375 km (0.11 R)
• M5: 1,630,617 km (0.103 R)
• M6: 1,708,258 km (0.1 R)
• M7: 1,838,259 km (0.066 R)
• M8: 2,116,062 km (0.102 R)
• M9: 2,201,482 km (0.103 R)
• M10: 2,295,879 km (0.074 R)
• M11: 2,375,614 km (0.079 R)
• M12: 2,554,384 km (0.1 R)
• M13: 2,662,244 km (0.12 R)
• M14: 2,934,213 km (0.118 R)
• M15: 3,162,050 km (0.087 R)
• M16: 3,404,698 km (0.118 R)
• M17: 3,542,328 km (0.1 R)
• M18: 3,663,053 km (0.082 R)
• M19: 3,775,701 km (0.114 R)
• M20: 3,889,694 km (0.086 R)
• M21: 4,014,309 km (0.065 R)
• M22: 4,189,189 km (0.096 R)
• M23: 4,945,107 km (0.096 R)
• M24: 5,312,220 km (0.033 R)
• M25: 5,515,374 km (0.073 R)
• M26: 6,040,014 km (0.115 R)
• M27: 6,229,704 km (0.052 R)
• M28: 6,649,326 km (0.115 R)
• M29: 6,996,393 km (0.107 R)
• M30: 7,183,989 km (0.099 R)
• M31: 7,793,002 km (0.103 R)
• M32: 8,109,850 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.6

Radius: 11

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.47 AU - 5.75 AU

Year: 8717 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 65,215,309 km

• M1: 147,055 km (0.117 R)
• M2: 278,252 km (0.112 R)
• M3: 449,093 km (0.113 R)
• M4: 645,664 km (0.084 R)
• M5: 840,142 km (0.06 R)
• M6: 1,037,312 km (0.078 R)
• M7: 1,124,078 km (0.088 R)
• M8: 1,419,235 km (0.092 R)
• M9: 1,759,869 km (0.038 R)
• M10: 2,306,949 km (0.104 R)
• M11: 2,399,251 km (0.095 R)
• M12: 2,469,412 km (0.118 R)
• M13: 2,635,615 km (0.099 R)
• M14: 2,854,926 km (0.084 R)
• M15: 3,363,858 km (0.072 R)
• M16: 3,575,389 km (0.038 R)
• M17: 3,764,182 km (0.064 R)
• M18: 4,639,479 km (0.118 R)
• M19: 4,727,442 km (0.047 R)
• M20: 4,816,004 km (0.048 R)
• M21: 4,905,165 km (0.09 R)
• M22: 5,328,377 km (0.108 R)
• M23: 5,513,430 km (0.103 R)
• M24: 5,763,557 km (0.034 R)
• M25: 6,470,407 km (0.032 R)
• M26: 7,478,098 km (0.07 R)
• M27: 7,650,884 km (0.049 R)
• M28: 7,859,872 km (0.111 R)
• M29: 8,141,565 km (0.084 R)
• M30: 8,426,698 km (0.1 R)
• M31: 8,751,176 km (0.059 R)
• M32: 9,487,198 km (0.063 R)
• M33: 9,599,396 km (0.035 R)
• M34: 9,787,291 km (0.074 R)
• M35: 10,628,330 km (0.079 R)
• M36: 11,215,203 km (0.12 R)
• M37: 11,333,684 km (0.09 R)
• M38: 11,612,236 km (0.079 R)
• M39: 11,692,121 km (0.067 R)
• M40: 12,379,373 km (0.091 R)
• M41: 12,501,894 km (0.085 R)
• M42: 12,955,026 km (0.113 R)
• M43: 13,121,080 km (0.089 R)
• M44: 14,175,296 km (0.094 R)
• M45: 14,690,960 km (0.088 R)
• M46: 15,081,859 km (0.095 R)
• M47: 15,740,688 km (0.082 R)
• M48: 16,995,964 km (0.101 R)
• M49: 17,360,384 km (0.089 R)
• M50: 17,589,568 km (0.057 R)
• M51: 17,773,573 km (0.04 R)
• M52: 18,004,553 km (0.113 R)
• M53: 18,190,054 km (0.105 R)
• M54: 18,609,676 km (0.051 R)
• M55: 19,174,109 km (0.085 R)
• M56: 19,268,804 km (0.107 R)
• M57: 19,648,932 km (0.119 R)
• M58: 19,887,691 km (0.111 R)
• M59: 20,416,519 km (0.118 R)
• M60: 21,096,292 km (0.049 R)
• M61: 21,242,898 km (0.113 R)
• M62: 22,328,529 km (0.084 R)
• M63: 22,727,806 km (0.03 R)
• M64: 23,129,327 km (0.105 R)
• M65: 23,330,985 km (0.095 R)
• M66: 23,888,686 km (0.048 R)
• M67: 24,194,763 km (0.081 R)
• M68: 25,327,967 km (0.093 R)
• M69: 29,592,404 km (0.085 R)
• M70: 30,306,135 km (0.032 R)
• M71: 31,192,353 km (0.098 R)
• M72: 31,359,454 km (0.096 R)
• M73: 31,694,553 km (0.026 R)
• M74: 32,255,844 km (0.115 R)
• M75: 33,901,720 km (0.114 R)
• M76: 35,284,453 km (0.085 R)
• M77: 35,516,778 km (0.096 R)
• M78: 36,392,225 km (0.047 R)
• M79: 36,685,587 km (0.085 R)
• M80: 37,748,480 km (0.113 R)
• M81: 38,582,039 km (0.074 R)
• M82: 38,701,568 km (0.101 R)
• M83: 38,821,246 km (0.083 R)
• M84: 39,723,022 km (0.118 R)
• M85: 40,327,996 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.1

Radius: 7.4

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.55 AU - 8.11 AU

Year: 13019 Days

Day: 19 Hours

Environment

Temp: -232 °C

Axial Tilt: 159.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 65,215,309 km

• M1: 113,545 km (0.094 R)
• M2: 194,926 km (0.063 R)
• M3: 333,154 km (0.061 R)
• M4: 1,221,915 km (0.11 R)
• M5: 1,925,773 km (0.068 R)
• M6: 2,707,871 km (0.053 R)
• M7: 3,146,342 km (0.047 R)
• M8: 3,606,954 km (0.074 R)
• M9: 4,088,659 km (0.045 R)
• M10: 4,558,546 km (0.11 R)
• M11: 5,345,581 km (0.094 R)
• M12: 5,720,473 km (0.084 R)
• M13: 5,963,270 km (0.047 R)
• M14: 6,174,203 km (0.114 R)
• M15: 6,387,679 km (0.113 R)
• M16: 7,490,665 km (0.057 R)
• M17: 7,833,094 km (0.118 R)
• M18: 8,025,477 km (0.049 R)
• M19: 8,691,187 km (0.034 R)
• M20: 8,850,509 km (0.117 R)
• M21: 10,537,674 km (0.071 R)
• M22: 11,614,031 km (0.102 R)
• M23: 12,500,099 km (0.1 R)
• M24: 13,916,192 km (0.036 R)
• M25: 14,289,738 km (0.081 R)
• M26: 14,999,131 km (0.102 R)
• M27: 15,720,043 km (0.078 R)
• M28: 15,914,072 km (0.117 R)
• M29: 16,060,229 km (0.102 R)
• M30: 16,402,958 km (0.115 R)
• M31: 16,649,196 km (0.118 R)
• M32: 17,495,621 km (0.077 R)
• M33: 17,646,415 km (0.063 R)
• M34: 18,560,458 km (0.092 R)
• M35: 19,281,969 km (0.088 R)
• M36: 20,593,044 km (0.095 R)
• M37: 21,072,057 km (0.113 R)
• M38: 21,608,664 km (0.067 R)
• M39: 21,878,689 km (0.108 R)
• M40: 22,640,441 km (0.089 R)
• M41: 22,859,751 km (0.068 R)
• M42: 23,245,265 km (0.064 R)
• M43: 24,246,075 km (0.087 R)
• M44: 26,983,267 km (0.113 R)
• M45: 27,565,801 km (0.086 R)
• M46: 30,237,769 km (0.098 R)
• M47: 30,418,932 km (0.098 R)
• M48: 31,573,827 km (0.08 R)
• M49: 31,696,348 km (0.092 R)
• M50: 31,818,869 km (0.115 R)
• M51: 32,743,234 km (0.109 R)
• M52: 32,929,184 km (0.068 R)
• M53: 33,676,425 km (0.101 R)
• M54: 34,240,409 km (0.067 R)
• M55: 35,060,804 km (0.045 R)
• M56: 36,271,350 km (0.069 R)
• M57: 36,335,378 km (0.119 R)
• M58: 38,145,213 km (0.063 R)
• M59: 38,406,112 km (0.076 R)
• M60: 38,667,609 km (0.107 R)
• M61: 39,192,548 km (0.108 R)
• M62: 39,719,731 km (0.04 R)
• M63: 40,382,000 km (0.117 R)
• M64: 40,448,422 km (0.069 R)
• M65: 40,647,985 km (0.031 R)
• M66: 42,863,979 km (0.112 R)
• M67: 43,884,236 km (0.093 R)
• M68: 44,500,280 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.6

Radius: 3.6

Gravity: 38.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.13 AU - 9.53 AU

Year: 18695 Days

Day: 19.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 65,215,309 km

• M1: 91,404 km (0.11 R)
• M2: 471,532 km (0.06 R)
• M3: 546,780 km (0.059 R)
• M4: 751,580 km (0.06 R)
• M5: 908,358 km (0.112 R)
• M6: 1,277,715 km (0.114 R)
• M7: 1,303,895 km (0.074 R)
• M8: 1,437,187 km (0.076 R)
• M9: 1,775,128 km (0.117 R)
• M10: 2,389,976 km (0.09 R)
• M11: 2,652,969 km (0.1 R)
• M12: 2,856,123 km (0.068 R)
• M13: 2,890,380 km (0.053 R)
• M14: 3,029,207 km (0.048 R)
• M15: 3,134,823 km (0.069 R)
• M16: 4,333,551 km (0.104 R)
• M17: 4,373,045 km (0.101 R)
• M18: 4,492,424 km (0.098 R)
• M19: 5,442,071 km (0.109 R)
• M20: 5,917,643 km (0.044 R)
• M21: 6,815,529 km (0.081 R)
• M22: 7,468,973 km (0.089 R)
• M23: 7,996,305 km (0.083 R)
• M24: 8,289,068 km (0.092 R)
• M25: 8,486,089 km (0.089 R)
• M26: 8,834,652 km (0.031 R)
• M27: 9,752,285 km (0.085 R)
• M28: 10,327,938 km (0.097 R)
• M29: 11,022,222 km (0.119 R)
• M30: 11,238,839 km (0.066 R)
• M31: 11,731,465 km (0.065 R)
• M32: 12,965,049 km (0.084 R)
• M33: 13,539,206 km (0.074 R)
• M34: 13,771,082 km (0.079 R)
• M35: 14,062,948 km (0.109 R)
• M36: 14,534,181 km (0.092 R)
• M37: 15,734,554 km (0.089 R)
• M38: 17,341,984 km (0.115 R)
• M39: 17,720,317 km (0.11 R)
• M40: 19,455,951 km (0.111 R)
• M41: 19,914,768 km (0.096 R)
• M42: 20,909,893 km (0.061 R)
• M43: 23,224,471 km (0.029 R)
• M44: 23,920,550 km (0.112 R)
• M45: 24,060,574 km (0.094 R)
• M46: 24,482,290 km (0.119 R)
• M47: 24,623,361 km (0.063 R)
• M48: 25,261,695 km (0.11 R)
• M49: 25,690,293 km (0.061 R)
• M50: 26,772,334 km (0.096 R)
• M51: 27,209,310 km (0.085 R)
• M52: 27,355,467 km (0.112 R)
• M53: 27,648,678 km (0.058 R)
• M54: 27,795,584 km (0.095 R)
• M55: 28,831,549 km (0.087 R)
• M56: 28,906,049 km (0.101 R)
• M57: 29,129,847 km (0.116 R)
• M58: 29,654,337 km (0.111 R)
• M59: 29,729,585 km (0.062 R)
• M60: 30,257,665 km (0.116 R)
• M61: 30,333,362 km (0.1 R)
• M62: 31,322,952 km (0.06 R)
• M63: 31,706,521 km (0.11 R)
• M64: 31,860,307 km (0.093 R)
• M65: 32,633,130 km (0.069 R)
• M66: 35,386,180 km (0.091 R)
• M67: 35,465,915 km (0.097 R)
• M68: 37,560,285 km (0.08 R)
• M69: 37,967,640 km (0.073 R)
• M70: 39,198,382 km (0.058 R)
• M71: 39,280,810 km (0.026 R)
• M72: 39,446,116 km (0.113 R)
• M73: 41,867,358 km (0.066 R)
• M74: 42,036,104 km (0.094 R)
• M75: 43,138,491 km (0.088 R)
• M76: 44,508,358 km (0.077 R)
• M77: 45,025,668 km (0.055 R)
• M78: 46,327,768 km (0.102 R)
• M79: 47,114,802 km (0.11 R)
• M80: 49,235,502 km (0.079 R)
• M81: 49,681,154 km (0.107 R)
• M82: 50,397,129 km (0.029 R)
• M83: 51,206,603 km (0.111 R)
• M84: 53,020,627 km (0.101 R)
• M85: 53,111,882 km (0.084 R)
• M86: 53,294,690 km (0.067 R)
• M87: 53,935,568 km (0.085 R)
• M88: 55,781,156 km (0.056 R)
• M89: 55,966,807 km (0.06 R)
• M90: 56,431,907 km (0.077 R)
• M91: 57,085,201 km (0.063 R)
• M92: 59,154,738 km (0.109 R)
• M93: 59,344,129 km (0.078 R)
• M94: 60,579,807 km (0.081 R)
• M95: 62,304,671 km (0.111 R)
• M96: 63,754,424 km (0.092 R)
• M97: 63,851,513 km (0.072 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: 543 - 11,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit