🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103

Radius: 12.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.66 AU - 0.9 AU

Year: 459 Days

Day: 13 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,847,976 km

• M1: 164,558 km (0.077 R)
• M2: 242,797 km (0.11 R)
• M3: 332,257 km (0.112 R)
• M4: 517,160 km (0.097 R)
• M5: 647,160 km (0.112 R)
• M6: 751,879 km (0.055 R)
• M7: 840,142 km (0.118 R)
• M8: 929,601 km (0.071 R)
• M9: 1,040,902 km (0.087 R)
• M10: 1,141,133 km (0.078 R)
• M11: 1,228,498 km (0.108 R)
• M12: 1,379,292 km (0.057 R)
• M13: 1,479,972 km (0.091 R)
• M14: 1,590,525 km (0.076 R)
• M15: 1,692,850 km (0.05 R)
• M16: 1,900,491 km (0.042 R)
• M17: 2,104,692 km (0.1 R)
• M18: 2,258,629 km (0.106 R)
• M19: 2,362,001 km (0.053 R)
• M20: 2,467,018 km (0.084 R)
• M21: 2,560,816 km (0.046 R)
• M22: 2,686,179 km (0.044 R)
• M23: 2,827,101 km (0.119 R)
• M24: 2,929,874 km (0.075 R)
• M25: 3,043,120 km (0.066 R)
• M26: 3,120,911 km (0.111 R)
• M27: 3,222,787 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.5

Radius: 13.8

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.29 AU - 1.45 AU

Year: 1069 Days

Day: 15 Hours

Environment

Temp: -181 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 40,847,976 km

• M1: 173,982 km (0.111 R)
• M2: 285,882 km (0.087 R)
• M3: 372,050 km (0.089 R)
• M4: 469,438 km (0.039 R)
• M5: 559,197 km (0.031 R)
• M6: 707,897 km (0.115 R)
• M7: 862,282 km (0.117 R)
• M8: 983,756 km (0.089 R)
• M9: 1,153,998 km (0.075 R)
• M10: 1,351,617 km (0.083 R)
• M11: 1,460,674 km (0.1 R)
• M12: 1,572,872 km (0.104 R)
• M13: 1,806,544 km (0.028 R)
• M14: 1,908,420 km (0.086 R)
• M15: 2,005,808 km (0.073 R)
• M16: 2,118,306 km (0.102 R)
• M17: 2,239,779 km (0.095 R)
• M18: 2,440,689 km (0.077 R)
• M19: 2,539,873 km (0.093 R)
• M20: 2,654,913 km (0.074 R)
• M21: 2,742,279 km (0.102 R)
• M22: 2,845,651 km (0.112 R)
• M23: 2,995,548 km (0.109 R)
• M24: 3,210,071 km (0.074 R)
• M25: 3,358,472 km (0.11 R)
• M26: 3,445,538 km (0.105 R)
• M27: 3,621,764 km (0.087 R)
• M28: 3,711,224 km (0.072 R)
• M29: 3,983,642 km (0.111 R)
• M30: 4,426,601 km (0.078 R)
• M31: 4,522,344 km (0.046 R)
• M32: 4,610,008 km (0.073 R)
• M33: 4,795,958 km (0.112 R)
• M34: 4,939,273 km (0.103 R)
• M35: 5,111,460 km (0.093 R)
• M36: 5,276,466 km (0.041 R)
• M37: 5,461,818 km (0.099 R)
• M38: 5,592,866 km (0.076 R)
• M39: 5,715,536 km (0.03 R)
• M40: 5,934,847 km (0.046 R)
• M41: 6,322,904 km (0.096 R)
• M42: 6,490,304 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.9

Radius: 14.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.56 AU - 1.88 AU

Year: 1504 Days

Day: 9 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 40,847,976 km

• M1: 225,594 km (0.083 R)
• M2: 352,153 km (0.065 R)
• M3: 475,272 km (0.032 R)
• M4: 578,046 km (0.12 R)
• M5: 697,874 km (0.034 R)
• M6: 1,053,618 km (0.09 R)
• M7: 1,650,214 km (0.103 R)
• M8: 1,996,384 km (0.094 R)
• M9: 2,098,110 km (0.113 R)
• M10: 2,236,488 km (0.066 R)
• M11: 2,401,943 km (0.081 R)
• M12: 2,522,818 km (0.086 R)
• M13: 2,645,788 km (0.072 R)
• M14: 2,745,570 km (0.109 R)
• M15: 2,859,414 km (0.105 R)
• M16: 2,974,903 km (0.049 R)
• M17: 3,277,540 km (0.093 R)
• M18: 3,743,238 km (0.102 R)
• M19: 3,856,035 km (0.119 R)
• M20: 4,041,686 km (0.103 R)
• M21: 4,259,650 km (0.031 R)
• M22: 4,466,693 km (0.102 R)
• M23: 4,677,177 km (0.111 R)
• M24: 4,844,727 km (0.11 R)
• M25: 5,123,577 km (0.099 R)
• M26: 5,328,227 km (0.055 R)
• M27: 5,471,542 km (0.05 R)
• M28: 5,599,897 km (0.102 R)
• M29: 5,778,218 km (0.108 R)
• M30: 6,173,904 km (0.118 R)
• M31: 6,274,284 km (0.038 R)
• M32: 6,392,018 km (0.061 R)
• M33: 6,527,404 km (0.056 R)
• M34: 6,715,299 km (0.103 R)
• M35: 6,904,989 km (0.068 R)
• M36: 7,131,480 km (0.111 R)
• M37: 7,538,237 km (0.075 R)
• M38: 7,717,455 km (0.113 R)
• M39: 8,560,289 km (0.088 R)
• M40: 8,916,931 km (0.073 R)
• M41: 9,030,625 km (0.058 R)
• M42: 9,163,917 km (0.107 R)
• M43: 9,606,427 km (0.092 R)
• M44: 10,154,404 km (0.073 R)
• M45: 11,301,670 km (0.096 R)
• M46: 11,776,195 km (0.119 R)
• M47: 12,194,171 km (0.084 R)
• M48: 12,299,488 km (0.092 R)
• M49: 12,723,598 km (0.067 R)
• M50: 13,325,580 km (0.114 R)
• M51: 13,520,955 km (0.055 R)
• M52: 13,630,012 km (0.12 R)
• M53: 14,135,204 km (0.118 R)
• M54: 14,245,756 km (0.103 R)
• M55: 14,512,489 km (0.053 R)
• M56: 14,668,969 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.7

Radius: 11.5

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.64 AU - 2.46 AU

Year: 1957 Days

Day: 9.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 40,847,976 km

• M1: 143,614 km (0.045 R)
• M2: 306,676 km (0.116 R)
• M3: 476,768 km (0.055 R)
• M4: 583,282 km (0.054 R)
• M5: 699,220 km (0.092 R)
• M6: 789,727 km (0.055 R)
• M7: 938,278 km (0.028 R)
• M8: 1,077,703 km (0.101 R)
• M9: 1,164,769 km (0.119 R)
• M10: 1,284,896 km (0.116 R)
• M11: 1,419,983 km (0.086 R)
• M12: 1,716,187 km (0.055 R)
• M13: 1,877,603 km (0.118 R)
• M14: 2,044,255 km (0.09 R)
• M15: 2,154,060 km (0.12 R)
• M16: 2,290,942 km (0.034 R)
• M17: 2,456,696 km (0.068 R)
• M18: 2,666,133 km (0.075 R)
• M19: 2,773,096 km (0.065 R)
• M20: 2,881,554 km (0.098 R)
• M21: 3,019,035 km (0.056 R)
• M22: 3,158,909 km (0.079 R)
• M23: 3,301,027 km (0.116 R)
• M24: 3,416,067 km (0.089 R)
• M25: 3,518,093 km (0.111 R)
• M26: 3,606,206 km (0.066 R)
• M27: 3,829,855 km (0.053 R)
• M28: 4,027,474 km (0.091 R)
• M29: 4,275,507 km (0.113 R)
• M30: 4,448,741 km (0.029 R)
• M31: 4,528,328 km (0.1 R)
• M32: 4,867,915 km (0.111 R)
• M33: 5,049,078 km (0.096 R)
• M34: 5,316,708 km (0.03 R)
• M35: 5,883,235 km (0.093 R)
• M36: 6,433,157 km (0.101 R)
• M37: 6,741,628 km (0.109 R)
• M38: 7,036,635 km (0.1 R)
• M39: 7,185,635 km (0.097 R)
• M40: 7,316,981 km (0.1 R)
• M41: 7,411,228 km (0.107 R)
• M42: 7,658,214 km (0.119 R)
• M43: 7,849,999 km (0.09 R)
• M44: 8,238,654 km (0.11 R)
• M45: 8,514,363 km (0.111 R)
• M46: 8,613,546 km (0.099 R)
• M47: 9,135,792 km (0.085 R)
• M48: 9,771,883 km (0.096 R)
• M49: 10,592,427 km (0.061 R)
• M50: 10,806,352 km (0.048 R)
• M51: 11,065,156 km (0.101 R)
• M52: 11,391,279 km (0.062 R)
• M53: 11,632,581 km (0.105 R)
• M54: 11,853,387 km (0.039 R)
• M55: 12,097,980 km (0.102 R)
• M56: 12,209,580 km (0.094 R)
• M57: 12,366,508 km (0.112 R)
• M58: 12,705,198 km (0.114 R)
• M59: 12,909,698 km (0.072 R)
• M60: 13,069,618 km (0.057 R)
• M61: 13,391,553 km (0.113 R)
• M62: 13,484,004 km (0.052 R)
• M63: 13,762,555 km (0.057 R)
• M64: 14,089,875 km (0.099 R)
• M65: 14,467,311 km (0.081 R)
• M66: 14,871,824 km (0.117 R)
• M67: 15,207,970 km (0.099 R)
• M68: 15,401,101 km (0.088 R)
• M69: 15,522,125 km (0.067 R)
• M70: 15,619,364 km (0.058 R)
• M71: 16,157,168 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.1

Radius: 10.8

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.08 AU - 3.02 AU

Year: 2715 Days

Day: 7 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 40,847,976 km

• M1: 143,764 km (0.092 R)
• M2: 219,460 km (0.029 R)
• M3: 410,497 km (0.029 R)
• M4: 486,193 km (0.074 R)
• M5: 664,065 km (0.038 R)
• M6: 747,391 km (0.085 R)
• M7: 894,894 km (0.064 R)
• M8: 1,009,786 km (0.095 R)
• M9: 1,482,066 km (0.082 R)
• M10: 1,828,236 km (0.102 R)
• M11: 2,143,289 km (0.095 R)
• M12: 2,242,622 km (0.114 R)
• M13: 2,314,578 km (0.106 R)
• M14: 2,595,373 km (0.117 R)
• M15: 2,840,265 km (0.118 R)
• M16: 2,981,486 km (0.103 R)
• M17: 3,076,929 km (0.119 R)
• M18: 3,303,570 km (0.07 R)
• M19: 3,468,875 km (0.063 R)
• M20: 3,552,650 km (0.056 R)
• M21: 3,670,982 km (0.112 R)
• M22: 3,790,660 km (0.027 R)
• M23: 3,876,978 km (0.094 R)
• M24: 4,390,548 km (0.03 R)
• M25: 4,481,204 km (0.105 R)
• M26: 4,720,262 km (0.082 R)
• M27: 4,982,207 km (0.113 R)
• M28: 5,306,835 km (0.057 R)
• M29: 5,423,072 km (0.108 R)
• M30: 5,816,664 km (0.088 R)
• M31: 5,996,780 km (0.078 R)
• M32: 6,321,707 km (0.114 R)
• M33: 7,052,492 km (0.063 R)
• M34: 7,482,138 km (0.116 R)
• M35: 8,209,632 km (0.116 R)
• M36: 8,570,462 km (0.068 R)
• M37: 8,661,567 km (0.12 R)
• M38: 8,890,452 km (0.081 R)
• M39: 9,121,581 km (0.106 R)
• M40: 9,448,302 km (0.071 R)
• M41: 9,660,432 km (0.089 R)
• M42: 9,755,277 km (0.097 R)
• M43: 9,945,715 km (0.04 R)
• M44: 10,017,522 km (0.093 R)
• M45: 10,185,670 km (0.059 R)
• M46: 10,597,812 km (0.063 R)
• M47: 10,867,537 km (0.104 R)
• M48: 11,214,006 km (0.112 R)
• M49: 11,338,621 km (0.079 R)
• M50: 12,070,603 km (0.114 R)
• M51: 12,817,695 km (0.088 R)
• M52: 13,473,981 km (0.053 R)
• M53: 13,872,959 km (0.062 R)
• M54: 14,302,753 km (0.089 R)
• M55: 14,573,675 km (0.036 R)
• M56: 14,682,582 km (0.111 R)
• M57: 15,313,586 km (0.115 R)
• M58: 16,404,005 km (0.093 R)
• M59: 16,573,948 km (0.071 R)
• M60: 17,001,349 km (0.027 R)
• M61: 17,259,555 km (0.092 R)
• M62: 17,867,222 km (0.106 R)
• M63: 18,100,594 km (0.054 R)
• M64: 18,364,335 km (0.049 R)
• M65: 18,806,696 km (0.086 R)
• M66: 19,043,959 km (0.092 R)
• M67: 19,133,268 km (0.086 R)
• M68: 19,641,752 km (0.063 R)
• M69: 19,822,316 km (0.064 R)
• M70: 20,033,548 km (0.06 R)
• M71: 20,367,152 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290

Radius: 12.2

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.33 AU - 3.17 AU

Year: 3041 Days

Day: 14.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 40,847,976 km

• M1: 181,313 km (0.071 R)
• M2: 300,542 km (0.102 R)
• M3: 382,821 km (0.116 R)
• M4: 594,352 km (0.111 R)
• M5: 764,146 km (0.073 R)
• M6: 960,418 km (0.058 R)
• M7: 1,088,474 km (0.109 R)
• M8: 1,342,342 km (0.065 R)
• M9: 1,434,793 km (0.094 R)
• M10: 1,518,867 km (0.062 R)
• M11: 1,659,340 km (0.088 R)
• M12: 1,770,491 km (0.069 R)
• M13: 2,203,726 km (0.1 R)
• M14: 2,289,446 km (0.092 R)
• M15: 2,682,888 km (0.117 R)
• M16: 2,761,577 km (0.119 R)
• M17: 3,306,263 km (0.034 R)
• M18: 3,736,656 km (0.115 R)
• M19: 3,988,728 km (0.099 R)
• M20: 4,169,891 km (0.111 R)
• M21: 4,276,854 km (0.051 R)
• M22: 4,431,388 km (0.116 R)
• M23: 4,572,010 km (0.1 R)
• M24: 5,100,539 km (0.092 R)
• M25: 5,818,460 km (0.108 R)
• M26: 6,180,636 km (0.098 R)
• M27: 6,497,036 km (0.109 R)
• M28: 6,585,747 km (0.107 R)
• M29: 6,945,231 km (0.034 R)
• M30: 7,274,196 km (0.086 R)
• M31: 7,533,599 km (0.083 R)
• M32: 7,758,445 km (0.101 R)
• M33: 8,176,421 km (0.108 R)
• M34: 8,388,102 km (0.111 R)
• M35: 8,640,773 km (0.12 R)
• M36: 8,817,149 km (0.1 R)
• M37: 9,014,468 km (0.108 R)
• M38: 9,153,595 km (0.108 R)
• M39: 9,433,791 km (0.113 R)
• M40: 9,595,207 km (0.088 R)
• M41: 9,676,289 km (0.068 R)
• M42: 9,818,707 km (0.075 R)
• M43: 10,044,001 km (0.035 R)
• M44: 10,167,569 km (0.038 R)
• M45: 10,478,583 km (0.115 R)
• M46: 10,624,890 km (0.074 R)
• M47: 11,067,849 km (0.101 R)
• M48: 11,387,988 km (0.078 R)
• M49: 11,689,578 km (0.053 R)
• M50: 12,146,749 km (0.105 R)
• M51: 12,565,623 km (0.093 R)
• M52: 13,213,980 km (0.096 R)
• M53: 13,372,105 km (0.083 R)
• M54: 13,576,306 km (0.089 R)
• M55: 13,827,481 km (0.051 R)
• M56: 14,126,078 km (0.093 R)
• M57: 14,264,755 km (0.104 R)
• M58: 14,473,444 km (0.092 R)
• M59: 14,589,832 km (0.111 R)
• M60: 14,893,964 km (0.103 R)
• M61: 15,508,512 km (0.085 R)
• M62: 15,723,185 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.7

Radius: 3.1

Gravity: 35.14 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.22 AU - 7.9 AU

Year: 11204 Days

Day: 23.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 40,847,976 km

• M1: 67,768 km (0.101 R)
• M2: 121,174 km (0.077 R)
• M3: 219,610 km (0.119 R)
• M4: 328,966 km (0.114 R)
• M5: 352,901 km (0.057 R)
• M6: 508,633 km (0.086 R)
• M7: 668,553 km (0.112 R)
• M8: 699,220 km (0.109 R)
• M9: 794,365 km (0.099 R)
• M10: 1,049,878 km (0.097 R)
• M11: 1,387,520 km (0.069 R)
• M12: 1,842,148 km (0.062 R)
• M13: 1,995,636 km (0.102 R)
• M14: 2,222,276 km (0.098 R)
• M15: 2,338,664 km (0.082 R)
• M16: 2,433,060 km (0.049 R)
• M17: 2,650,425 km (0.09 R)
• M18: 2,773,694 km (0.119 R)
• M19: 2,798,677 km (0.111 R)
• M20: 3,312,246 km (0.101 R)
• M21: 3,634,031 km (0.085 R)
• M22: 3,743,537 km (0.106 R)
• M23: 3,965,840 km (0.094 R)
• M24: 4,307,222 km (0.099 R)
• M25: 4,628,409 km (0.081 R)
• M26: 5,448,803 km (0.113 R)
• M27: 5,764,006 km (0.045 R)
• M28: 6,052,580 km (0.114 R)
• M29: 6,677,301 km (0.107 R)
• M30: 6,912,618 km (0.114 R)
• M31: 7,530,009 km (0.096 R)
• M32: 7,880,517 km (0.056 R)
• M33: 8,236,410 km (0.1 R)
• M34: 9,260,407 km (0.056 R)
• M35: 9,297,807 km (0.101 R)
• M36: 9,560,351 km (0.09 R)
• M37: 9,863,436 km (0.047 R)
• M38: 10,016,176 km (0.097 R)
• M39: 10,131,217 km (0.087 R)
• M40: 10,246,706 km (0.066 R)
• M41: 11,146,537 km (0.077 R)
• M42: 11,868,197 km (0.047 R)
• M43: 13,779,909 km (0.085 R)
• M44: 14,207,908 km (0.119 R)
• M45: 14,640,396 km (0.101 R)
• M46: 14,814,528 km (0.099 R)
• M47: 15,208,868 km (0.055 R)
• M48: 15,296,981 km (0.114 R)
• M49: 15,385,393 km (0.059 R)
• M50: 15,651,228 km (0.119 R)
• M51: 15,784,670 km (0.086 R)
• M52: 15,918,560 km (0.119 R)
• M53: 16,911,890 km (0.078 R)
• M54: 16,957,517 km (0.084 R)
• M55: 17,003,144 km (0.095 R)
• M56: 18,815,672 km (0.037 R)
• M57: 20,786,175 km (0.118 R)
• M58: 21,080,135 km (0.091 R)
• M59: 21,870,311 km (0.063 R)
• M60: 22,169,208 km (0.1 R)
• M61: 22,219,024 km (0.103 R)
• M62: 23,225,668 km (0.089 R)
• M63: 23,377,958 km (0.11 R)
• M64: 23,683,437 km (0.106 R)
• M65: 24,453,118 km (0.106 R)
• M66: 24,659,713 km (0.101 R)
• M67: 26,016,715 km (0.063 R)
• M68: 26,280,456 km (0.108 R)
• M69: 27,558,621 km (0.062 R)
• M70: 28,748,073 km (0.101 R)
• M71: 29,513,566 km (0.106 R)
• M72: 32,415,166 km (0.088 R)
• M73: 32,585,408 km (0.062 R)
• M74: 33,268,921 km (0.11 R)
• M75: 33,440,510 km (0.108 R)
• M76: 33,497,806 km (0.055 R)
• M77: 33,842,180 km (0.116 R)
• M78: 34,534,369 km (0.112 R)
• M79: 35,056,615 km (0.102 R)
• M80: 35,289,539 km (0.093 R)
• M81: 35,464,569 km (0.12 R)
• M82: 36,167,679 km (0.083 R)
• M83: 36,697,854 km (0.075 R)
• M84: 36,756,945 km (0.118 R)
• M85: 37,112,090 km (0.102 R)
• M86: 37,587,512 km (0.12 R)
• M87: 38,604,179 km (0.102 R)
• M88: 38,844,733 km (0.112 R)
• M89: 39,085,735 km (0.058 R)
• M90: 39,146,023 km (0.101 R)
• M91: 39,872,470 km (0.036 R)
• M92: 39,993,944 km (0.117 R)
• M93: 40,298,226 km (0.111 R)
• M94: 40,542,220 km (0.099 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: 244 - 13,614 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit