🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.54 AU - 0.54 AU

Year: 260 Days

Day: 22.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.6

Radius: 13

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.57 AU - 2.03 AU

Year: 1584 Days

Day: 11.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 57,605,929 km

• M1: 224,696 km (0.07 R)
• M2: 361,279 km (0.116 R)
• M3: 677,828 km (0.11 R)
• M4: 892,950 km (0.095 R)
• M5: 981,661 km (0.086 R)
• M6: 1,176,138 km (0.046 R)
• M7: 1,488,798 km (0.079 R)
• M8: 1,629,869 km (0.077 R)
• M9: 1,863,391 km (0.09 R)
• M10: 1,952,851 km (0.053 R)
• M11: 2,043,806 km (0.084 R)
• M12: 2,182,932 km (0.038 R)
• M13: 2,344,498 km (0.055 R)
• M14: 2,540,022 km (0.082 R)
• M15: 2,639,804 km (0.109 R)
• M16: 2,781,772 km (0.095 R)
• M17: 2,936,756 km (0.095 R)
• M18: 3,244,628 km (0.098 R)
• M19: 3,452,270 km (0.116 R)
• M20: 3,698,059 km (0.078 R)
• M21: 3,869,199 km (0.103 R)
• M22: 4,031,214 km (0.105 R)
• M23: 4,266,531 km (0.114 R)
• M24: 4,470,284 km (0.111 R)
• M25: 4,813,012 km (0.114 R)
• M26: 5,253,279 km (0.035 R)
• M27: 5,381,634 km (0.112 R)
• M28: 5,772,683 km (0.116 R)
• M29: 5,865,284 km (0.106 R)
• M30: 6,078,760 km (0.086 R)
• M31: 6,294,929 km (0.097 R)
• M32: 6,499,878 km (0.118 R)
• M33: 7,284,668 km (0.083 R)
• M34: 7,966,386 km (0.103 R)
• M35: 8,054,948 km (0.112 R)
• M36: 8,262,739 km (0.087 R)
• M37: 8,472,475 km (0.112 R)
• M38: 8,653,489 km (0.1 R)
• M39: 9,034,963 km (0.089 R)
• M40: 9,515,621 km (0.091 R)
• M41: 10,164,278 km (0.065 R)
• M42: 10,680,540 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.9

Radius: 11.3

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.97 AU - 2.47 AU

Year: 2170 Days

Day: 14 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 57,605,929 km

• M1: 153,188 km (0.104 R)
• M2: 438,471 km (0.045 R)
• M3: 520,451 km (0.057 R)
• M4: 594,652 km (0.053 R)
• M5: 810,521 km (0.066 R)
• M6: 883,076 km (0.113 R)
• M7: 1,035,217 km (0.12 R)
• M8: 1,178,233 km (0.1 R)
• M9: 1,299,407 km (0.072 R)
• M10: 1,554,920 km (0.1 R)
• M11: 1,837,810 km (0.105 R)
• M12: 2,205,970 km (0.076 R)
• M13: 2,345,695 km (0.106 R)
• M14: 2,416,604 km (0.11 R)
• M15: 2,488,411 km (0.065 R)
• M16: 2,770,253 km (0.094 R)
• M17: 3,075,433 km (0.073 R)
• M18: 3,245,376 km (0.109 R)
• M19: 3,773,905 km (0.082 R)
• M20: 3,857,531 km (0.083 R)
• M21: 3,956,116 km (0.114 R)
• M22: 4,256,658 km (0.07 R)
• M23: 4,358,534 km (0.092 R)
• M24: 4,431,837 km (0.118 R)
• M25: 4,774,117 km (0.061 R)
• M26: 4,925,809 km (0.081 R)
• M27: 5,109,814 km (0.091 R)
• M28: 5,187,157 km (0.071 R)
• M29: 5,343,038 km (0.106 R)
• M30: 5,787,942 km (0.1 R)
• M31: 5,998,575 km (0.066 R)
• M32: 6,377,507 km (0.118 R)
• M33: 6,528,002 km (0.084 R)
• M34: 6,986,370 km (0.091 R)
• M35: 7,262,977 km (0.088 R)
• M36: 7,507,868 km (0.066 R)
• M37: 7,916,271 km (0.044 R)
• M38: 7,988,078 km (0.1 R)
• M39: 8,313,752 km (0.112 R)
• M40: 8,496,561 km (0.108 R)
• M41: 8,736,366 km (0.041 R)
• M42: 9,128,312 km (0.088 R)
• M43: 9,203,560 km (0.099 R)
• M44: 9,298,106 km (0.12 R)
• M45: 9,449,798 km (0.093 R)
• M46: 9,794,322 km (0.078 R)
• M47: 10,006,901 km (0.026 R)
• M48: 10,104,139 km (0.051 R)
• M49: 10,456,442 km (0.099 R)
• M50: 11,294,190 km (0.115 R)
• M51: 11,496,896 km (0.116 R)
• M52: 11,680,303 km (0.071 R)
• M53: 11,905,896 km (0.071 R)
• M54: 12,236,507 km (0.071 R)
• M55: 12,361,272 km (0.096 R)
• M56: 12,507,280 km (0.086 R)
• M57: 12,633,091 km (0.074 R)
• M58: 12,991,528 km (0.108 R)
• M59: 13,460,368 km (0.114 R)
• M60: 14,546,448 km (0.087 R)
• M61: 14,722,824 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.2

Radius: 12.2

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.98 AU - 2.94 AU

Year: 2531 Days

Day: 7.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 57,605,929 km

• M1: 182,659 km (0.065 R)
• M2: 279,150 km (0.111 R)
• M3: 489,783 km (0.102 R)
• M4: 638,484 km (0.1 R)
• M5: 841,338 km (0.053 R)
• M6: 975,827 km (0.104 R)
• M7: 1,447,359 km (0.06 R)
• M8: 1,708,408 km (0.047 R)
• M9: 1,869,973 km (0.034 R)
• M10: 1,959,283 km (0.102 R)
• M11: 2,102,448 km (0.112 R)
• M12: 2,182,035 km (0.078 R)
• M13: 2,652,669 km (0.11 R)
• M14: 2,855,823 km (0.071 R)
• M15: 3,417,414 km (0.082 R)
• M16: 3,591,097 km (0.059 R)
• M17: 3,832,697 km (0.083 R)
• M18: 4,063,078 km (0.067 R)
• M19: 4,146,404 km (0.11 R)
• M20: 4,281,042 km (0.111 R)
• M21: 4,417,176 km (0.076 R)
• M22: 4,503,046 km (0.079 R)
• M23: 4,589,363 km (0.084 R)
• M24: 4,711,286 km (0.105 R)
• M25: 4,798,950 km (0.102 R)
• M26: 4,905,015 km (0.096 R)
• M27: 5,428,608 km (0.101 R)
• M28: 5,557,561 km (0.07 R)
• M29: 5,706,411 km (0.109 R)
• M30: 5,800,059 km (0.106 R)
• M31: 5,894,306 km (0.105 R)
• M32: 6,334,123 km (0.101 R)
• M33: 6,666,231 km (0.062 R)
• M34: 6,764,965 km (0.114 R)
• M35: 6,884,045 km (0.077 R)
• M36: 6,983,977 km (0.04 R)
• M37: 7,104,403 km (0.057 R)
• M38: 7,185,036 km (0.076 R)
• M39: 7,552,000 km (0.041 R)
• M40: 7,675,717 km (0.061 R)
• M41: 7,987,778 km (0.12 R)
• M42: 8,092,796 km (0.096 R)
• M43: 8,496,112 km (0.084 R)
• M44: 8,949,393 km (0.115 R)
• M45: 9,388,463 km (0.07 R)
• M46: 9,744,805 km (0.054 R)
• M47: 10,379,250 km (0.064 R)
• M48: 10,724,522 km (0.118 R)
• M49: 10,910,322 km (0.104 R)
• M50: 11,027,009 km (0.076 R)
• M51: 11,975,160 km (0.054 R)
• M52: 12,507,728 km (0.038 R)
• M53: 13,097,593 km (0.098 R)
• M54: 13,196,776 km (0.08 R)
• M55: 13,596,053 km (0.085 R)
• M56: 13,948,805 km (0.104 R)
• M57: 14,714,746 km (0.095 R)
• M58: 14,843,699 km (0.054 R)
• M59: 14,947,221 km (0.095 R)
• M60: 15,076,922 km (0.11 R)
• M61: 15,285,162 km (0.107 R)
• M62: 15,678,156 km (0.079 R)
• M63: 16,180,805 km (0.104 R)
• M64: 16,554,650 km (0.074 R)
• M65: 16,823,328 km (0.099 R)
• M66: 17,039,497 km (0.082 R)
• M67: 17,365,171 km (0.041 R)
• M68: 17,447,001 km (0.095 R)
• M69: 17,638,337 km (0.111 R)
• M70: 17,775,369 km (0.039 R)
• M71: 18,023,103 km (0.063 R)
• M72: 18,133,506 km (0.087 R)
• M73: 18,633,163 km (0.073 R)
• M74: 18,772,887 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.6

Radius: 13.2

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.73 AU - 5.15 AU

Year: 7203 Days

Day: 9.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 57,605,929 km

• M1: 289,771 km (0.079 R)
• M2: 400,324 km (0.105 R)
• M3: 611,706 km (0.05 R)
• M4: 912,098 km (0.109 R)
• M5: 1,168,808 km (0.064 R)
• M6: 1,315,713 km (0.081 R)
• M7: 1,794,576 km (0.098 R)
• M8: 1,879,548 km (0.115 R)
• M9: 2,165,728 km (0.094 R)
• M10: 2,419,147 km (0.087 R)
• M11: 2,854,926 km (0.108 R)
• M12: 3,341,867 km (0.108 R)
• M13: 3,474,411 km (0.076 R)
• M14: 3,855,137 km (0.072 R)
• M15: 4,135,334 km (0.11 R)
• M16: 4,249,328 km (0.03 R)
• M17: 4,364,368 km (0.036 R)
• M18: 5,889,369 km (0.1 R)
• M19: 6,542,064 km (0.096 R)
• M20: 6,776,036 km (0.089 R)
• M21: 7,012,849 km (0.045 R)
• M22: 7,355,727 km (0.063 R)
• M23: 9,792,527 km (0.101 R)
• M24: 9,945,416 km (0.06 R)
• M25: 10,292,184 km (0.118 R)
• M26: 10,760,724 km (0.099 R)
• M27: 11,637,966 km (0.074 R)
• M28: 12,455,369 km (0.076 R)
• M29: 13,375,994 km (0.101 R)
• M30: 14,016,273 km (0.074 R)
• M31: 14,535,677 km (0.094 R)
• M32: 16,041,529 km (0.094 R)
• M33: 16,267,123 km (0.107 R)
• M34: 16,357,630 km (0.098 R)
• M35: 16,448,435 km (0.103 R)
• M36: 16,539,241 km (0.075 R)
• M37: 16,721,601 km (0.105 R)
• M38: 17,134,192 km (0.076 R)
• M39: 17,318,646 km (0.099 R)
• M40: 17,457,324 km (0.107 R)
• M41: 17,596,599 km (0.058 R)
• M42: 17,875,898 km (0.092 R)
• M43: 18,203,817 km (0.111 R)
• M44: 18,486,407 km (0.117 R)
• M45: 18,675,649 km (0.119 R)
• M46: 19,583,109 km (0.09 R)
• M47: 19,679,600 km (0.1 R)
• M48: 20,602,918 km (0.12 R)
• M49: 21,045,279 km (0.056 R)
• M50: 21,989,541 km (0.081 R)
• M51: 22,592,869 km (0.113 R)
• M52: 23,201,882 km (0.074 R)
• M53: 24,487,675 km (0.09 R)
• M54: 24,643,556 km (0.066 R)
• M55: 24,799,737 km (0.087 R)
• M56: 24,904,156 km (0.084 R)
• M57: 25,270,372 km (0.074 R)
• M58: 25,955,231 km (0.087 R)
• M59: 26,167,211 km (0.119 R)
• M60: 27,182,083 km (0.093 R)
• M61: 27,289,644 km (0.09 R)
• M62: 27,451,209 km (0.117 R)
• M63: 27,938,001 km (0.098 R)
• M64: 29,305,176 km (0.072 R)
• M65: 29,747,237 km (0.097 R)
• M66: 32,788,562 km (0.114 R)
• M67: 33,132,637 km (0.116 R)
• M68: 33,477,909 km (0.107 R)
• M69: 35,456,491 km (0.117 R)
• M70: 35,574,074 km (0.051 R)
• M71: 36,163,939 km (0.119 R)
• M72: 36,816,485 km (0.103 R)
• M73: 37,293,552 km (0.062 R)
• M74: 37,892,692 km (0.081 R)
• M75: 39,039,958 km (0.1 R)
• M76: 39,222,168 km (0.084 R)
• M77: 39,465,414 km (0.032 R)
• M78: 40,874,477 km (0.102 R)
• M79: 41,244,731 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.9

Radius: 11

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.2 AU - 6.16 AU

Year: 7734 Days

Day: 11 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 57,605,929 km

• M1: 176,974 km (0.106 R)
• M2: 250,277 km (0.068 R)
• M3: 468,541 km (0.105 R)
• M4: 908,657 km (0.115 R)
• M5: 983,008 km (0.072 R)
• M6: 1,154,596 km (0.085 R)
• M7: 1,439,730 km (0.076 R)
• M8: 1,618,051 km (0.11 R)
• M9: 1,899,444 km (0.095 R)
• M10: 2,095,866 km (0.101 R)
• M11: 2,237,386 km (0.099 R)
• M12: 2,573,233 km (0.087 R)
• M13: 2,681,542 km (0.115 R)
• M14: 2,791,347 km (0.081 R)
• M15: 2,947,676 km (0.033 R)
• M16: 3,626,252 km (0.067 R)
• M17: 3,699,256 km (0.113 R)
• M18: 3,995,909 km (0.094 R)
• M19: 4,455,773 km (0.087 R)
• M20: 4,586,372 km (0.076 R)
• M21: 4,718,466 km (0.075 R)
• M22: 4,851,758 km (0.12 R)
• M23: 5,176,834 km (0.115 R)
• M24: 5,286,789 km (0.108 R)
• M25: 5,565,190 km (0.06 R)
• M26: 6,223,571 km (0.076 R)
• M27: 6,696,300 km (0.104 R)
• M28: 6,967,222 km (0.083 R)
• M29: 7,489,019 km (0.058 R)
• M30: 8,182,854 km (0.091 R)
• M31: 8,831,660 km (0.093 R)
• M32: 9,329,073 km (0.053 R)
• M33: 9,631,859 km (0.081 R)
• M34: 10,006,452 km (0.029 R)
• M35: 10,143,783 km (0.12 R)
• M36: 10,281,862 km (0.117 R)
• M37: 10,769,850 km (0.1 R)
• M38: 11,123,050 km (0.103 R)
• M39: 11,408,483 km (0.036 R)
• M40: 11,516,044 km (0.101 R)
• M41: 11,624,054 km (0.037 R)
• M42: 12,169,039 km (0.092 R)
• M43: 12,242,342 km (0.118 R)
• M44: 12,945,901 km (0.052 R)
• M45: 13,208,445 km (0.083 R)
• M46: 13,283,842 km (0.072 R)
• M47: 13,510,632 km (0.097 R)
• M48: 14,160,486 km (0.101 R)
• M49: 14,314,871 km (0.06 R)
• M50: 14,431,108 km (0.055 R)
• M51: 14,898,901 km (0.117 R)
• M52: 16,942,108 km (0.116 R)
• M53: 17,106,068 km (0.113 R)
• M54: 17,601,087 km (0.106 R)
• M55: 18,774,383 km (0.119 R)
• M56: 19,843,410 km (0.025 R)
• M57: 20,016,195 km (0.103 R)
• M58: 20,189,579 km (0.059 R)
• M59: 20,363,412 km (0.087 R)
• M60: 20,932,033 km (0.1 R)
• M61: 21,284,486 km (0.07 R)
• M62: 21,594,453 km (0.097 R)
• M63: 22,668,715 km (0.047 R)
• M64: 23,030,592 km (0.099 R)
• M65: 23,760,331 km (0.065 R)
• M66: 24,683,050 km (0.078 R)
• M67: 25,008,725 km (0.099 R)
• M68: 26,801,805 km (0.095 R)
• M69: 27,136,605 km (0.084 R)
• M70: 27,520,922 km (0.091 R)
• M71: 27,955,354 km (0.092 R)
• M72: 28,052,294 km (0.108 R)
• M73: 29,568,019 km (0.094 R)
• M74: 29,716,121 km (0.082 R)
• M75: 31,060,258 km (0.111 R)
• M76: 31,764,864 km (0.075 R)
• M77: 32,169,975 km (0.093 R)
• M78: 33,858,785 km (0.091 R)
• M79: 34,013,769 km (0.06 R)
• M80: 34,169,051 km (0.061 R)
• M81: 34,480,065 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.7

Radius: 7.5

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.18 AU - 9.26 AU

Year: 16892 Days

Day: 16.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 57,605,929 km

• M1: 102,774 km (0.118 R)
• M2: 307,124 km (0.104 R)
• M3: 438,023 km (0.077 R)
• M4: 486,043 km (0.066 R)
• M5: 606,021 km (0.116 R)
• M6: 815,009 km (0.118 R)
• M7: 896,690 km (0.109 R)
• M8: 1,543,700 km (0.093 R)
• M9: 1,857,706 km (0.111 R)
• M10: 1,994,439 km (0.059 R)
• M11: 2,454,153 km (0.028 R)
• M12: 2,788,953 km (0.051 R)
• M13: 3,138,264 km (0.057 R)
• M14: 4,448,891 km (0.117 R)
• M15: 5,007,639 km (0.087 R)
• M16: 5,866,780 km (0.09 R)
• M17: 6,603,400 km (0.109 R)
• M18: 6,770,949 km (0.079 R)
• M19: 6,982,481 km (0.114 R)
• M20: 7,325,509 km (0.096 R)
• M21: 8,342,026 km (0.114 R)
• M22: 8,432,533 km (0.073 R)
• M23: 8,935,930 km (0.082 R)
• M24: 9,638,292 km (0.081 R)
• M25: 9,828,431 km (0.109 R)
• M26: 10,309,537 km (0.071 R)
• M27: 10,358,157 km (0.112 R)
• M28: 10,504,164 km (0.074 R)
• M29: 10,798,423 km (0.12 R)
• M30: 11,145,041 km (0.104 R)
• M31: 11,798,485 km (0.077 R)
• M32: 12,619,628 km (0.074 R)
• M33: 12,723,598 km (0.034 R)
• M34: 12,827,868 km (0.067 R)
• M35: 13,885,824 km (0.096 R)
• M36: 13,939,380 km (0.05 R)
• M37: 14,262,661 km (0.078 R)
• M38: 16,423,453 km (0.118 R)
• M39: 16,879,128 km (0.115 R)
• M40: 17,338,992 km (0.091 R)
• M41: 17,978,074 km (0.068 R)
• M42: 19,040,368 km (0.057 R)
• M43: 19,518,932 km (0.051 R)
• M44: 19,820,072 km (0.097 R)
• M45: 20,062,122 km (0.106 R)
• M46: 20,305,218 km (0.101 R)
• M47: 20,549,212 km (0.089 R)
• M48: 21,101,827 km (0.111 R)
• M49: 21,721,461 km (0.109 R)
• M50: 22,915,252 km (0.08 R)
• M51: 24,973,719 km (0.05 R)
• M52: 25,169,692 km (0.03 R)
• M53: 26,755,878 km (0.086 R)
• M54: 27,023,509 km (0.069 R)
• M55: 27,831,337 km (0.096 R)
• M56: 27,898,956 km (0.076 R)
• M57: 28,034,491 km (0.065 R)
• M58: 28,102,409 km (0.096 R)
• M59: 28,647,095 km (0.119 R)
• M60: 28,783,827 km (0.094 R)
• M61: 29,264,186 km (0.092 R)
• M62: 29,954,879 km (0.103 R)
• M63: 31,281,812 km (0.086 R)
• M64: 32,129,883 km (0.116 R)
• M65: 34,718,973 km (0.113 R)
• M66: 35,670,266 km (0.116 R)
• M67: 35,890,923 km (0.12 R)
• M68: 36,852,687 km (0.09 R)
• M69: 38,801,649 km (0.089 R)
• M70: 39,408,118 km (0.113 R)
• M71: 39,941,285 km (0.084 R)
• M72: 40,400,102 km (0.091 R)
• M73: 41,400,463 km (0.116 R)
• M74: 41,632,339 km (0.12 R)
• M75: 43,739,725 km (0.085 R)
• M76: 43,818,413 km (0.098 R)
• M77: 45,004,724 km (0.102 R)
• M78: 46,442,210 km (0.095 R)
• M79: 47,085,930 km (0.051 R)
• M80: 48,545,107 km (0.117 R)
• M81: 48,626,638 km (0.096 R)
• M82: 49,116,571 km (0.094 R)
• M83: 49,280,231 km (0.119 R)
• M84: 49,362,211 km (0.1 R)
• M85: 50,761,549 km (0.07 R)
• M86: 56,402,436 km (0.083 R)
• M87: 56,488,156 km (0.118 R)
• M88: 57,347,297 km (0.081 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 479 - 18,516 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit