🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.7

Radius: 12.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.49 AU - 0.73 AU

Year: 335 Days

Day: 10.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 32,740,074 km

• M1: 166,951 km (0.077 R)
• M2: 272,717 km (0.071 R)
• M3: 376,837 km (0.061 R)
• M4: 460,313 km (0.097 R)
• M5: 637,586 km (0.083 R)
• M6: 746,942 km (0.05 R)
• M7: 827,276 km (0.081 R)
• M8: 924,664 km (0.085 R)
• M9: 1,029,832 km (0.101 R)
• M10: 1,113,607 km (0.078 R)
• M11: 1,211,144 km (0.112 R)
• M12: 1,444,218 km (0.12 R)
• M13: 1,619,397 km (0.104 R)
• M14: 1,731,446 km (0.101 R)
• M15: 1,837,361 km (0.113 R)
• M16: 1,927,269 km (0.089 R)
• M17: 2,018,823 km (0.086 R)
• M18: 2,107,236 km (0.118 R)
• M19: 2,254,290 km (0.03 R)
• M20: 2,365,741 km (0.082 R)
• M21: 2,489,009 km (0.099 R)
• M22: 2,589,240 km (0.083 R)
• M23: 2,695,903 km (0.069 R)
• M24: 2,851,036 km (0.093 R)
• M25: 3,143,350 km (0.106 R)
• M26: 3,279,335 km (0.083 R)
• M27: 3,384,203 km (0.113 R)
• M28: 3,478,898 km (0.102 R)
• M29: 3,619,820 km (0.079 R)
• M30: 3,716,759 km (0.105 R)
• M31: 3,808,911 km (0.116 R)
• M32: 3,895,977 km (0.102 R)
• M33: 4,083,872 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.3

Radius: 12.3

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.29 AU - 1.33 AU

Year: 1054 Days

Day: 8.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 32,740,074 km

• M1: 154,535 km (0.111 R)
• M2: 263,591 km (0.039 R)
• M3: 344,524 km (0.094 R)
• M4: 447,896 km (0.039 R)
• M5: 545,583 km (0.055 R)
• M6: 631,153 km (0.096 R)
• M7: 761,154 km (0.111 R)
• M8: 877,242 km (0.101 R)
• M9: 987,346 km (0.099 R)
• M10: 1,076,506 km (0.09 R)
• M11: 1,168,509 km (0.117 R)
• M12: 1,440,029 km (0.111 R)
• M13: 1,786,498 km (0.053 R)
• M14: 1,865,485 km (0.076 R)
• M15: 1,969,755 km (0.109 R)
• M16: 2,142,840 km (0.12 R)
• M17: 2,235,441 km (0.097 R)
• M18: 2,407,479 km (0.104 R)
• M19: 2,646,835 km (0.104 R)
• M20: 2,968,919 km (0.111 R)
• M21: 3,110,888 km (0.116 R)
• M22: 3,206,930 km (0.1 R)
• M23: 3,691,327 km (0.113 R)
• M24: 3,813,699 km (0.064 R)
• M25: 3,947,589 km (0.065 R)
• M26: 4,041,386 km (0.091 R)
• M27: 4,209,684 km (0.102 R)
• M28: 4,294,805 km (0.057 R)
• M29: 4,456,072 km (0.102 R)
• M30: 4,542,839 km (0.077 R)
• M31: 4,674,036 km (0.048 R)
• M32: 4,828,720 km (0.116 R)
• M33: 5,041,598 km (0.103 R)
• M34: 5,188,952 km (0.085 R)
• M35: 5,291,875 km (0.106 R)
• M36: 5,757,424 km (0.065 R)
• M37: 5,852,119 km (0.12 R)
• M38: 6,394,711 km (0.116 R)
• M39: 6,678,348 km (0.119 R)
• M40: 6,953,459 km (0.116 R)
• M41: 7,168,730 km (0.116 R)
• M42: 7,347,649 km (0.12 R)
• M43: 7,566,810 km (0.105 R)
• M44: 7,657,765 km (0.047 R)
• M45: 8,064,821 km (0.047 R)
• M46: 8,237,607 km (0.037 R)
• M47: 8,371,347 km (0.099 R)
• M48: 8,559,841 km (0.1 R)
• M49: 8,654,686 km (0.054 R)
• M50: 8,818,046 km (0.079 R)
• M51: 8,900,026 km (0.109 R)
• M52: 9,023,594 km (0.093 R)
• M53: 9,203,111 km (0.053 R)
• M54: 9,286,288 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.1

Radius: 11.5

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.39 AU - 1.67 AU

Year: 1330 Days

Day: 7.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 32,740,074 km

• M1: 145,110 km (0.115 R)
• M2: 246,088 km (0.116 R)
• M3: 325,226 km (0.117 R)
• M4: 530,324 km (0.049 R)
• M5: 627,114 km (0.072 R)
• M6: 710,590 km (0.035 R)
• M7: 858,841 km (0.089 R)
• M8: 948,750 km (0.05 R)
• M9: 1,032,525 km (0.118 R)
• M10: 1,104,331 km (0.07 R)
• M11: 1,183,170 km (0.106 R)
• M12: 1,378,096 km (0.058 R)
• M13: 1,656,946 km (0.036 R)
• M14: 1,753,885 km (0.105 R)
• M15: 1,835,416 km (0.084 R)
• M16: 1,971,999 km (0.097 R)
• M17: 2,075,222 km (0.119 R)
• M18: 2,155,406 km (0.037 R)
• M19: 2,306,350 km (0.079 R)
• M20: 2,434,855 km (0.094 R)
• M21: 2,513,095 km (0.07 R)
• M22: 2,685,581 km (0.081 R)
• M23: 2,855,375 km (0.117 R)
• M24: 2,938,102 km (0.073 R)
• M25: 3,021,727 km (0.111 R)
• M26: 3,127,194 km (0.082 R)
• M27: 3,277,241 km (0.109 R)
• M28: 3,429,681 km (0.035 R)
• M29: 3,577,035 km (0.051 R)
• M30: 3,931,731 km (0.062 R)
• M31: 4,024,033 km (0.086 R)
• M32: 4,171,836 km (0.06 R)
• M33: 4,361,227 km (0.05 R)
• M34: 4,440,962 km (0.118 R)
• M35: 4,513,218 km (0.048 R)
• M36: 4,610,008 km (0.082 R)
• M37: 4,724,002 km (0.108 R)
• M38: 4,929,699 km (0.111 R)
• M39: 5,375,799 km (0.107 R)
• M40: 5,504,454 km (0.112 R)
• M41: 5,914,202 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.8

Radius: 12.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.3 AU - 3.08 AU

Year: 3101 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 32,740,074 km

• M1: 151,094 km (0.113 R)
• M2: 372,798 km (0.105 R)
• M3: 525,238 km (0.092 R)
• M4: 646,712 km (0.068 R)
• M5: 879,935 km (0.115 R)
• M6: 1,029,084 km (0.06 R)
• M7: 1,129,763 km (0.108 R)
• M8: 1,269,488 km (0.104 R)
• M9: 1,390,662 km (0.096 R)
• M10: 1,764,656 km (0.094 R)
• M11: 1,914,853 km (0.099 R)
• M12: 2,170,067 km (0.105 R)
• M13: 2,376,213 km (0.091 R)
• M14: 2,745,121 km (0.116 R)
• M15: 2,824,258 km (0.078 R)
• M16: 2,968,770 km (0.094 R)
• M17: 3,383,305 km (0.093 R)
• M18: 3,468,427 km (0.097 R)
• M19: 3,834,044 km (0.097 R)
• M20: 4,285,530 km (0.053 R)
• M21: 4,414,932 km (0.053 R)
• M22: 4,545,830 km (0.071 R)
• M23: 4,965,453 km (0.113 R)
• M24: 5,043,094 km (0.053 R)
• M25: 5,517,618 km (0.084 R)
• M26: 5,618,298 km (0.093 R)
• M27: 6,298,370 km (0.047 R)
• M28: 6,616,115 km (0.099 R)
• M29: 6,960,939 km (0.117 R)
• M30: 7,157,510 km (0.107 R)
• M31: 7,267,465 km (0.09 R)
• M32: 7,871,242 km (0.077 R)
• M33: 8,305,823 km (0.059 R)
• M34: 8,537,700 km (0.102 R)
• M35: 8,936,827 km (0.037 R)
• M36: 9,055,458 km (0.077 R)
• M37: 9,729,247 km (0.048 R)
• M38: 10,096,809 km (0.109 R)
• M39: 10,594,072 km (0.076 R)
• M40: 10,921,542 km (0.082 R)
• M41: 10,997,687 km (0.096 R)
• M42: 11,175,859 km (0.081 R)
• M43: 11,483,432 km (0.093 R)
• M44: 11,898,117 km (0.074 R)
• M45: 12,185,943 km (0.091 R)
• M46: 12,264,931 km (0.041 R)
• M47: 13,171,195 km (0.088 R)
• M48: 13,279,354 km (0.079 R)
• M49: 13,387,663 km (0.112 R)
• M50: 13,714,534 km (0.114 R)
• M51: 13,796,664 km (0.06 R)
• M52: 14,016,423 km (0.083 R)
• M53: 14,515,182 km (0.097 R)
• M54: 14,822,905 km (0.047 R)
• M55: 15,245,968 km (0.114 R)
• M56: 15,758,939 km (0.105 R)
• M57: 16,335,639 km (0.095 R)
• M58: 16,626,607 km (0.109 R)
• M59: 17,450,292 km (0.074 R)
• M60: 17,807,383 km (0.086 R)
• M61: 18,619,699 km (0.087 R)
• M62: 18,832,278 km (0.103 R)
• M63: 19,474,800 km (0.089 R)
• M64: 19,845,205 km (0.099 R)
• M65: 20,062,421 km (0.112 R)
• M66: 21,128,455 km (0.031 R)
• M67: 21,223,450 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.8

Radius: 10.5

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.78 AU - 3.46 AU

Year: 3874 Days

Day: 13.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 32,740,074 km

• M1: 149,448 km (0.089 R)
• M2: 256,710 km (0.099 R)
• M3: 376,837 km (0.106 R)
• M4: 686,056 km (0.086 R)
• M5: 775,515 km (0.059 R)
• M6: 1,069,176 km (0.098 R)
• M7: 1,566,738 km (0.058 R)
• M8: 1,715,439 km (0.083 R)
• M9: 1,897,350 km (0.093 R)
• M10: 2,056,372 km (0.073 R)
• M11: 2,250,251 km (0.105 R)
• M12: 2,341,655 km (0.102 R)
• M13: 2,449,964 km (0.089 R)
• M14: 2,544,211 km (0.077 R)
• M15: 2,720,288 km (0.108 R)
• M16: 2,801,519 km (0.037 R)
• M17: 3,000,185 km (0.098 R)
• M18: 3,152,177 km (0.068 R)
• M19: 3,237,896 km (0.081 R)
• M20: 3,324,214 km (0.092 R)
• M21: 3,840,626 km (0.119 R)
• M22: 4,117,681 km (0.11 R)
• M23: 4,230,329 km (0.104 R)
• M24: 4,477,913 km (0.092 R)
• M25: 4,868,214 km (0.12 R)
• M26: 5,047,582 km (0.073 R)
• M27: 5,330,771 km (0.082 R)
• M28: 6,061,556 km (0.069 R)
• M29: 6,168,519 km (0.064 R)
• M30: 6,406,230 km (0.097 R)
• M31: 6,537,128 km (0.085 R)
• M32: 6,890,478 km (0.119 R)
• M33: 7,024,667 km (0.074 R)
• M34: 7,295,589 km (0.065 R)
• M35: 7,363,806 km (0.083 R)
• M36: 7,524,025 km (0.076 R)
• M37: 7,987,928 km (0.079 R)
• M38: 8,105,362 km (0.087 R)
• M39: 8,461,256 km (0.119 R)
• M40: 8,653,040 km (0.105 R)
• M41: 8,797,851 km (0.042 R)
• M42: 9,163,618 km (0.108 R)
• M43: 9,237,369 km (0.085 R)
• M44: 9,459,821 km (0.081 R)
• M45: 10,188,513 km (0.087 R)
• M46: 10,623,992 km (0.079 R)
• M47: 10,961,335 km (0.119 R)
• M48: 11,118,114 km (0.085 R)
• M49: 11,249,311 km (0.071 R)
• M50: 11,566,608 km (0.1 R)
• M51: 11,726,229 km (0.045 R)
• M52: 12,372,342 km (0.087 R)
• M53: 12,481,100 km (0.073 R)
• M54: 13,113,001 km (0.109 R)
• M55: 13,335,304 km (0.083 R)
• M56: 14,465,067 km (0.036 R)
• M57: 14,838,912 km (0.1 R)
• M58: 14,983,573 km (0.096 R)
• M59: 15,596,176 km (0.061 R)
• M60: 15,920,205 km (0.091 R)
• M61: 16,216,858 km (0.085 R)
• M62: 16,306,168 km (0.108 R)
• M63: 16,515,306 km (0.11 R)
• M64: 16,936,125 km (0.097 R)
• M65: 17,026,781 km (0.091 R)
• M66: 17,147,955 km (0.099 R)
• M67: 17,330,165 km (0.101 R)
• M68: 17,451,938 km (0.085 R)
• M69: 17,604,677 km (0.077 R)
• M70: 17,942,170 km (0.095 R)
• M71: 18,468,007 km (0.083 R)
• M72: 18,873,567 km (0.07 R)
• M73: 19,820,671 km (0.116 R)
• M74: 19,916,114 km (0.075 R)
• M75: 20,107,749 km (0.119 R)
• M76: 21,465,798 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.7

Radius: 13

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.94 AU - 4.04 AU

Year: 4583 Days

Day: 11.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 32,740,074 km

• M1: 219,610 km (0.076 R)
• M2: 355,295 km (0.075 R)
• M3: 489,634 km (0.114 R)
• M4: 656,136 km (0.06 R)
• M5: 764,296 km (0.11 R)
• M6: 939,175 km (0.118 R)
• M7: 1,167,761 km (0.035 R)
• M8: 1,330,673 km (0.101 R)
• M9: 1,472,641 km (0.119 R)
• M10: 1,589,926 km (0.111 R)
• M11: 1,741,319 km (0.118 R)
• M12: 1,913,506 km (0.104 R)
• M13: 2,174,405 km (0.075 R)
• M14: 2,309,342 km (0.112 R)
• M15: 2,429,769 km (0.06 R)
• M16: 2,605,546 km (0.08 R)
• M17: 3,254,053 km (0.115 R)
• M18: 3,606,954 km (0.086 R)
• M19: 3,828,658 km (0.081 R)
• M20: 4,349,708 km (0.079 R)
• M21: 4,542,689 km (0.067 R)
• M22: 4,673,138 km (0.061 R)
• M23: 4,804,784 km (0.106 R)
• M24: 4,959,768 km (0.079 R)
• M25: 5,184,314 km (0.028 R)
• M26: 5,504,454 km (0.071 R)
• M27: 5,949,208 km (0.05 R)
• M28: 6,552,237 km (0.117 R)
• M29: 6,749,407 km (0.115 R)
• M30: 7,531,804 km (0.112 R)
• M31: 7,946,938 km (0.06 R)
• M32: 8,289,816 km (0.111 R)
• M33: 8,826,873 km (0.051 R)
• M34: 9,237,070 km (0.059 R)
• M35: 9,375,149 km (0.088 R)
• M36: 9,597,601 km (0.096 R)
• M37: 9,765,599 km (0.05 R)
• M38: 10,161,435 km (0.043 R)
• M39: 10,591,380 km (0.066 R)
• M40: 10,677,997 km (0.103 R)
• M41: 11,528,461 km (0.089 R)
• M42: 12,007,024 km (0.067 R)
• M43: 12,400,766 km (0.088 R)
• M44: 13,014,716 km (0.06 R)
• M45: 13,231,932 km (0.091 R)
• M46: 13,827,630 km (0.026 R)
• M47: 14,112,914 km (0.057 R)
• M48: 14,272,235 km (0.093 R)
• M49: 14,657,001 km (0.052 R)
• M50: 15,898,065 km (0.084 R)
• M51: 15,997,547 km (0.092 R)
• M52: 16,097,180 km (0.116 R)
• M53: 16,363,913 km (0.093 R)
• M54: 16,631,992 km (0.101 R)
• M55: 17,411,098 km (0.081 R)
• M56: 17,753,677 km (0.041 R)
• M57: 18,202,171 km (0.116 R)
• M58: 18,410,412 km (0.099 R)
• M59: 18,654,406 km (0.113 R)
• M60: 18,829,435 km (0.076 R)
• M61: 19,357,516 km (0.076 R)
• M62: 19,712,362 km (0.083 R)
• M63: 20,500,593 km (0.076 R)
• M64: 20,608,902 km (0.096 R)
• M65: 21,225,993 km (0.076 R)
• M66: 21,628,711 km (0.087 R)
• M67: 21,775,765 km (0.079 R)
• M68: 22,218,874 km (0.111 R)
• M69: 22,330,025 km (0.119 R)
• M70: 22,963,872 km (0.063 R)
• M71: 23,151,467 km (0.109 R)
• M72: 24,862,418 km (0.036 R)
• M73: 25,170,889 km (0.113 R)
• M74: 25,519,452 km (0.075 R)
• M75: 25,791,570 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.9

Radius: 13.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.42 AU - 4.94 AU

Year: 6007 Days

Day: 13.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 32,740,074 km

• M1: 168,298 km (0.078 R)
• M2: 286,480 km (0.116 R)
• M3: 416,331 km (0.109 R)
• M4: 585,526 km (0.115 R)
• M5: 743,053 km (0.1 R)
• M6: 874,998 km (0.081 R)
• M7: 1,015,770 km (0.114 R)
• M8: 1,104,182 km (0.082 R)
• M9: 1,289,534 km (0.103 R)
• M10: 1,469,051 km (0.12 R)
• M11: 1,553,424 km (0.101 R)
• M12: 1,781,112 km (0.074 R)
• M13: 2,038,869 km (0.117 R)
• M14: 3,900,016 km (0.119 R)
• M15: 4,237,210 km (0.118 R)
• M16: 4,484,047 km (0.114 R)
• M17: 4,837,397 km (0.102 R)
• M18: 5,384,775 km (0.085 R)
• M19: 5,896,998 km (0.111 R)
• M20: 6,200,832 km (0.086 R)
• M21: 6,538,175 km (0.073 R)
• M22: 6,651,869 km (0.108 R)
• M23: 6,795,034 km (0.116 R)
• M24: 6,968,269 km (0.079 R)
• M25: 8,190,783 km (0.072 R)
• M26: 8,937,126 km (0.088 R)
• M27: 9,222,559 km (0.118 R)
• M28: 9,867,924 km (0.089 R)
• M29: 10,229,054 km (0.084 R)
• M30: 10,394,658 km (0.093 R)
• M31: 10,661,541 km (0.049 R)
• M32: 10,795,730 km (0.04 R)
• M33: 11,338,471 km (0.108 R)
• M34: 11,441,245 km (0.094 R)
• M35: 11,578,726 km (0.083 R)
• M36: 11,682,247 km (0.103 R)
• M37: 12,274,655 km (0.061 R)
• M38: 12,876,786 km (0.057 R)
• M39: 13,889,564 km (0.1 R)
• M40: 14,036,319 km (0.117 R)
• M41: 14,183,673 km (0.111 R)
• M42: 14,927,773 km (0.087 R)
• M43: 15,078,269 km (0.08 R)
• M44: 15,342,608 km (0.104 R)
• M45: 16,068,008 km (0.102 R)
• M46: 16,299,436 km (0.075 R)
• M47: 16,454,270 km (0.092 R)
• M48: 16,921,913 km (0.099 R)
• M49: 17,990,042 km (0.12 R)
• M50: 18,110,019 km (0.117 R)
• M51: 19,324,903 km (0.11 R)
• M52: 19,776,988 km (0.048 R)
• M53: 20,399,166 km (0.104 R)
• M54: 20,482,641 km (0.093 R)
• M55: 20,943,552 km (0.09 R)
• M56: 21,705,305 km (0.089 R)
• M57: 22,691,753 km (0.103 R)
• M58: 25,109,554 km (0.026 R)
• M59: 25,783,043 km (0.112 R)
• M60: 25,963,608 km (0.118 R)
• M61: 26,235,427 km (0.118 R)
• M62: 26,507,995 km (0.092 R)
• M63: 26,599,100 km (0.046 R)
• M64: 27,239,827 km (0.081 R)
• M65: 27,562,061 km (0.028 R)
• M66: 27,931,867 km (0.08 R)
• M67: 28,582,917 km (0.029 R)
• M68: 28,676,416 km (0.113 R)
• M69: 29,097,983 km (0.047 R)
• M70: 29,710,736 km (0.092 R)
• M71: 29,805,431 km (0.11 R)
• M72: 30,996,978 km (0.05 R)
• M73: 31,719,386 km (0.088 R)
• M74: 32,058,375 km (0.061 R)
• M75: 32,204,083 km (0.075 R)
• M76: 32,691,174 km (0.08 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 11,660 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit