🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.5

Radius: 11.1

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.9 AU - 1.12 AU

Year: 655 Days

Day: 10.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 64,614,748 km

• M1: 138,528 km (0.116 R)
• M2: 211,382 km (0.103 R)
• M3: 283,787 km (0.049 R)
• M4: 362,476 km (0.116 R)
• M5: 515,365 km (0.077 R)
• M6: 673,190 km (0.09 R)
• M7: 844,031 km (0.059 R)
• M8: 970,890 km (0.104 R)
• M9: 1,062,444 km (0.105 R)
• M10: 1,166,564 km (0.09 R)
• M11: 1,469,051 km (0.066 R)
• M12: 1,668,166 km (0.113 R)
• M13: 1,768,247 km (0.072 R)
• M14: 1,841,849 km (0.092 R)
• M15: 2,009,997 km (0.101 R)
• M16: 2,250,251 km (0.072 R)
• M17: 2,392,818 km (0.116 R)
• M18: 2,462,082 km (0.112 R)
• M19: 2,544,809 km (0.084 R)
• M20: 2,660,897 km (0.117 R)
• M21: 2,778,930 km (0.092 R)
• M22: 2,858,516 km (0.107 R)
• M23: 3,067,804 km (0.119 R)
• M24: 3,254,202 km (0.109 R)
• M25: 3,338,276 km (0.108 R)
• M26: 3,487,276 km (0.079 R)
• M27: 3,566,264 km (0.114 R)
• M28: 3,638,519 km (0.097 R)
• M29: 3,711,224 km (0.108 R)
• M30: 3,858,279 km (0.103 R)
• M31: 3,939,959 km (0.114 R)
• M32: 4,014,758 km (0.091 R)
• M33: 4,226,738 km (0.104 R)
• M34: 4,341,779 km (0.103 R)
• M35: 4,504,691 km (0.082 R)
• M36: 4,860,734 km (0.105 R)
• M37: 4,965,303 km (0.072 R)
• M38: 5,062,542 km (0.052 R)
• M39: 5,143,923 km (0.037 R)
• M40: 5,225,902 km (0.104 R)
• M41: 5,299,953 km (0.12 R)
• M42: 5,391,058 km (0.115 R)
• M43: 5,574,765 km (0.112 R)
• M44: 5,726,756 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.8

Radius: 10.5

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.62 AU - 3.94 AU

Year: 3836 Days

Day: 7.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 64,614,748 km

• M1: 155,432 km (0.083 R)
• M2: 314,754 km (0.058 R)
• M3: 408,701 km (0.09 R)
• M4: 542,741 km (0.087 R)
• M5: 768,783 km (0.073 R)
• M6: 976,874 km (0.041 R)
• M7: 1,125,874 km (0.088 R)
• M8: 1,350,570 km (0.065 R)
• M9: 1,812,677 km (0.071 R)
• M10: 2,014,186 km (0.057 R)
• M11: 2,272,242 km (0.069 R)
• M12: 2,982,084 km (0.1 R)
• M13: 3,146,791 km (0.115 R)
• M14: 3,371,038 km (0.094 R)
• M15: 3,485,182 km (0.113 R)
• M16: 4,034,804 km (0.087 R)
• M17: 4,176,623 km (0.076 R)
• M18: 4,278,798 km (0.107 R)
• M19: 4,382,021 km (0.062 R)
• M20: 4,824,083 km (0.049 R)
• M21: 4,953,036 km (0.074 R)
• M22: 5,039,653 km (0.088 R)
• M23: 5,302,646 km (0.111 R)
• M24: 5,660,335 km (0.059 R)
• M25: 6,707,969 km (0.06 R)
• M26: 7,217,200 km (0.099 R)
• M27: 7,290,951 km (0.115 R)
• M28: 7,389,686 km (0.112 R)
• M29: 7,638,467 km (0.115 R)
• M30: 8,118,976 km (0.099 R)
• M31: 8,505,387 km (0.039 R)
• M32: 8,609,357 km (0.108 R)
• M33: 9,029,727 km (0.098 R)
• M34: 9,510,685 km (0.117 R)
• M35: 9,808,833 km (0.098 R)
• M36: 10,027,545 km (0.102 R)
• M37: 11,003,223 km (0.03 R)
• M38: 11,116,767 km (0.095 R)
• M39: 11,202,038 km (0.099 R)
• M40: 11,516,942 km (0.09 R)
• M41: 12,096,783 km (0.114 R)
• M42: 12,184,597 km (0.108 R)
• M43: 12,272,561 km (0.116 R)
• M44: 12,360,823 km (0.072 R)
• M45: 12,508,327 km (0.079 R)
• M46: 12,626,808 km (0.095 R)
• M47: 13,557,457 km (0.102 R)
• M48: 14,169,462 km (0.044 R)
• M49: 14,478,980 km (0.071 R)
• M50: 15,104,598 km (0.062 R)
• M51: 15,325,554 km (0.107 R)
• M52: 15,579,571 km (0.047 R)
• M53: 16,188,285 km (0.093 R)
• M54: 17,198,220 km (0.081 R)
• M55: 17,264,043 km (0.064 R)
• M56: 17,594,654 km (0.101 R)
• M57: 18,228,351 km (0.114 R)
• M58: 18,733,992 km (0.099 R)
• M59: 19,005,661 km (0.115 R)
• M60: 19,176,053 km (0.106 R)
• M61: 19,244,270 km (0.035 R)
• M62: 19,587,148 km (0.081 R)
• M63: 20,070,350 km (0.101 R)
• M64: 20,592,446 km (0.1 R)
• M65: 20,662,458 km (0.109 R)
• M66: 20,978,109 km (0.08 R)
• M67: 21,119,031 km (0.108 R)
• M68: 21,614,499 km (0.117 R)
• M69: 21,685,558 km (0.107 R)
• M70: 21,899,333 km (0.113 R)
• M71: 22,042,349 km (0.057 R)
• M72: 22,293,075 km (0.106 R)
• M73: 22,616,954 km (0.118 R)
• M74: 22,870,074 km (0.036 R)
• M75: 23,087,589 km (0.074 R)
• M76: 23,781,274 km (0.105 R)
• M77: 24,741,393 km (0.118 R)
• M78: 25,002,143 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.5

Radius: 10.4

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 4.43 AU - 5.41 AU

Year: 7046 Days

Day: 8.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 64,614,748 km

• M1: 133,142 km (0.071 R)
• M2: 199,414 km (0.059 R)
• M3: 296,353 km (0.038 R)
• M4: 371,302 km (0.065 R)
• M5: 467,493 km (0.099 R)
• M6: 601,832 km (0.077 R)
• M7: 750,533 km (0.107 R)
• M8: 845,976 km (0.042 R)
• M9: 1,121,834 km (0.108 R)
• M10: 1,232,686 km (0.112 R)
• M11: 1,629,420 km (0.116 R)
• M12: 1,777,522 km (0.057 R)
• M13: 1,864,289 km (0.052 R)
• M14: 1,952,551 km (0.08 R)
• M15: 2,179,342 km (0.103 R)
• M16: 2,487,065 km (0.117 R)
• M17: 2,758,585 km (0.109 R)
• M18: 2,962,038 km (0.099 R)
• M19: 3,938,014 km (0.063 R)
• M20: 5,036,661 km (0.103 R)
• M21: 5,254,775 km (0.103 R)
• M22: 5,829,829 km (0.052 R)
• M23: 6,257,679 km (0.064 R)
• M24: 6,695,701 km (0.104 R)
• M25: 6,798,176 km (0.112 R)
• M26: 7,039,477 km (0.101 R)
• M27: 7,708,479 km (0.099 R)
• M28: 7,960,103 km (0.11 R)
• M29: 8,805,929 km (0.103 R)
• M30: 8,880,728 km (0.12 R)
• M31: 9,031,223 km (0.055 R)
• M32: 9,182,467 km (0.102 R)
• M33: 9,258,463 km (0.104 R)
• M34: 9,449,350 km (0.092 R)
• M35: 9,757,372 km (0.114 R)
• M36: 9,873,759 km (0.049 R)
• M37: 10,901,795 km (0.106 R)
• M38: 11,022,670 km (0.084 R)
• M39: 11,224,927 km (0.107 R)
• M40: 11,306,308 km (0.107 R)
• M41: 11,469,370 km (0.072 R)
• M42: 11,798,186 km (0.068 R)
• M43: 12,380,869 km (0.08 R)
• M44: 12,464,794 km (0.109 R)
• M45: 12,591,204 km (0.072 R)
• M46: 13,617,445 km (0.102 R)
• M47: 14,184,571 km (0.109 R)
• M48: 15,840,619 km (0.114 R)
• M49: 16,900,670 km (0.069 R)
• M50: 17,698,774 km (0.066 R)
• M51: 18,413,254 km (0.115 R)
• M52: 18,653,658 km (0.055 R)
• M53: 21,718,170 km (0.089 R)
• M54: 21,870,311 km (0.068 R)
• M55: 22,431,453 km (0.062 R)
• M56: 22,739,624 km (0.029 R)
• M57: 23,724,427 km (0.049 R)
• M58: 24,038,283 km (0.089 R)
• M59: 24,248,319 km (0.049 R)
• M60: 25,467,841 km (0.049 R)
• M61: 25,628,359 km (0.074 R)
• M62: 25,843,032 km (0.074 R)
• M63: 26,761,563 km (0.113 R)
• M64: 28,575,138 km (0.056 R)
• M65: 29,132,540 km (0.093 R)
• M66: 29,975,374 km (0.098 R)
• M67: 30,258,114 km (0.106 R)
• M68: 30,655,446 km (0.103 R)
• M69: 30,769,290 km (0.036 R)
• M70: 31,111,570 km (0.093 R)
• M71: 33,484,491 km (0.098 R)
• M72: 33,601,776 km (0.11 R)
• M73: 33,895,437 km (0.09 R)
• M74: 34,131,053 km (0.106 R)
• M75: 34,781,655 km (0.096 R)
• M76: 34,959,826 km (0.051 R)
• M77: 35,436,444 km (0.099 R)
• M78: 35,675,502 km (0.116 R)
• M79: 35,915,158 km (0.109 R)
• M80: 36,335,827 km (0.087 R)
• M81: 37,364,163 km (0.065 R)
• M82: 38,524,892 km (0.099 R)
• M83: 39,017,219 km (0.107 R)
• M84: 42,140,673 km (0.107 R)
• M85: 42,393,942 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.6

Radius: 14.3

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.43 AU - 5.91 AU

Year: 8717 Days

Day: 10.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 64,614,748 km

• M1: 196,572 km (0.111 R)
• M2: 386,561 km (0.106 R)
• M3: 663,167 km (0.091 R)
• M4: 900,430 km (0.102 R)
• M5: 1,167,163 km (0.088 R)
• M6: 1,576,911 km (0.106 R)
• M7: 2,812,590 km (0.104 R)
• M8: 3,609,348 km (0.101 R)
• M9: 4,378,430 km (0.116 R)
• M10: 4,646,061 km (0.086 R)
• M11: 5,237,870 km (0.076 R)
• M12: 5,522,405 km (0.089 R)
• M13: 5,853,765 km (0.115 R)
• M14: 6,234,491 km (0.101 R)
• M15: 6,557,922 km (0.094 R)
• M16: 6,776,634 km (0.11 R)
• M17: 7,131,630 km (0.058 R)
• M18: 7,999,297 km (0.072 R)
• M19: 8,256,755 km (0.04 R)
• M20: 8,351,152 km (0.077 R)
• M21: 8,924,560 km (0.104 R)
• M22: 11,108,689 km (0.049 R)
• M23: 12,058,935 km (0.115 R)
• M24: 12,327,613 km (0.096 R)
• M25: 12,543,781 km (0.117 R)
• M26: 13,283,244 km (0.094 R)
• M27: 13,505,097 km (0.057 R)
• M28: 13,616,398 km (0.089 R)
• M29: 13,952,395 km (0.104 R)
• M30: 14,689,613 km (0.11 R)
• M31: 14,919,096 km (0.058 R)
• M32: 15,236,543 km (0.065 R)
• M33: 15,702,241 km (0.1 R)
• M34: 16,291,059 km (0.108 R)
• M35: 16,916,976 km (0.085 R)
• M36: 17,187,748 km (0.118 R)
• M37: 18,161,929 km (0.064 R)
• M38: 18,717,686 km (0.096 R)
• M39: 19,373,373 km (0.101 R)
• M40: 19,719,842 km (0.098 R)
• M41: 19,814,687 km (0.112 R)
• M42: 20,291,156 km (0.063 R)
• M43: 21,093,599 km (0.11 R)
• M44: 21,972,038 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 824.7

Radius: 6.4

Gravity: 20.13 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.89 AU - 9.23 AU

Year: 16171 Days

Day: 19.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 64,614,748 km

• M1: 120,725 km (0.093 R)
• M2: 183,557 km (0.054 R)
• M3: 356,941 km (0.066 R)
• M4: 1,009,486 km (0.037 R)
• M5: 1,608,177 km (0.095 R)
• M6: 1,697,188 km (0.084 R)
• M7: 1,942,678 km (0.116 R)
• M8: 2,535,684 km (0.033 R)
• M9: 2,960,243 km (0.068 R)
• M10: 3,444,940 km (0.107 R)
• M11: 3,716,011 km (0.107 R)
• M12: 4,612,701 km (0.093 R)
• M13: 5,663,177 km (0.073 R)
• M14: 6,592,778 km (0.088 R)
• M15: 6,784,263 km (0.102 R)
• M16: 7,920,908 km (0.084 R)
• M17: 8,073,498 km (0.091 R)
• M18: 8,537,102 km (0.081 R)
• M19: 9,221,961 km (0.114 R)
• M20: 9,436,185 km (0.117 R)
• M21: 9,706,359 km (0.114 R)
• M22: 10,143,932 km (0.101 R)
• M23: 10,756,087 km (0.084 R)
• M24: 11,380,060 km (0.108 R)
• M25: 11,783,375 km (0.047 R)
• M26: 12,367,406 km (0.11 R)
• M27: 13,685,512 km (0.093 R)
• M28: 13,868,620 km (0.092 R)
• M29: 16,777,252 km (0.11 R)
• M30: 16,842,626 km (0.098 R)
• M31: 17,301,891 km (0.086 R)
• M32: 17,698,774 km (0.043 R)
• M33: 20,490,271 km (0.118 R)
• M34: 20,980,353 km (0.079 R)
• M35: 21,191,586 km (0.095 R)
• M36: 21,403,566 km (0.1 R)
• M37: 21,829,620 km (0.103 R)
• M38: 22,834,469 km (0.065 R)
• M39: 22,979,131 km (0.107 R)
• M40: 23,051,685 km (0.1 R)
• M41: 23,342,504 km (0.11 R)
• M42: 24,740,197 km (0.112 R)
• M43: 25,037,896 km (0.041 R)
• M44: 26,468,202 km (0.111 R)
• M45: 27,693,109 km (0.093 R)
• M46: 28,390,235 km (0.063 R)
• M47: 28,545,966 km (0.043 R)
• M48: 28,858,177 km (0.053 R)
• M49: 29,171,585 km (0.114 R)
• M50: 29,801,691 km (0.074 R)
• M51: 30,197,826 km (0.113 R)
• M52: 30,277,263 km (0.061 R)
• M53: 30,995,183 km (0.065 R)
• M54: 31,477,038 km (0.094 R)
• M55: 31,718,788 km (0.094 R)
• M56: 32,692,371 km (0.033 R)
• M57: 34,170,846 km (0.111 R)
• M58: 34,419,328 km (0.114 R)
• M59: 34,502,355 km (0.104 R)
• M60: 35,503,315 km (0.055 R)
• M61: 35,923,236 km (0.084 R)
• M62: 36,344,653 km (0.111 R)
• M63: 36,429,176 km (0.047 R)
• M64: 37,362,966 km (0.107 R)
• M65: 40,561,368 km (0.117 R)
• M66: 40,736,847 km (0.098 R)
• M67: 41,264,478 km (0.105 R)
• M68: 41,617,380 km (0.076 R)
• M69: 41,794,354 km (0.085 R)
• M70: 44,477,392 km (0.092 R)
• M71: 46,571,912 km (0.064 R)
• M72: 50,572,907 km (0.107 R)
• M73: 51,424,118 km (0.073 R)
• M74: 51,518,964 km (0.11 R)
• M75: 52,853,377 km (0.116 R)
• M76: 54,102,668 km (0.112 R)
• M77: 55,458,773 km (0.107 R)
• M78: 56,043,551 km (0.054 R)
• M79: 56,826,247 km (0.094 R)
• M80: 58,105,758 km (0.077 R)
• M81: 58,303,526 km (0.106 R)
• M82: 58,501,444 km (0.076 R)
• M83: 59,295,360 km (0.102 R)
• M84: 59,394,843 km (0.069 R)
• M85: 61,094,723 km (0.042 R)
• M86: 61,496,992 km (0.104 R)
• M87: 61,597,821 km (0.095 R)
• M88: 64,235,531 km (0.102 R)
• M89: 65,259,827 km (0.065 R)
• M90: 65,362,451 km (0.049 R)
• M91: 65,568,148 km (0.116 R)
• M92: 66,806,370 km (0.12 R)
• M93: 68,260,611 km (0.105 R)
• M94: 68,991,696 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.7

Radius: 7.8

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.9 AU - 10.82 AU

Year: 17028 Days

Day: 17.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 64,614,748 km

• M1: 161,566 km (0.081 R)
• M2: 593,904 km (0.091 R)
• M3: 840,142 km (0.064 R)
• M4: 974,929 km (0.114 R)
• M5: 1,092,962 km (0.105 R)
• M6: 1,611,917 km (0.118 R)
• M7: 1,897,350 km (0.088 R)
• M8: 2,483,025 km (0.11 R)
• M9: 4,034,056 km (0.077 R)
• M10: 4,264,886 km (0.112 R)
• M11: 4,460,560 km (0.094 R)
• M12: 4,619,283 km (0.067 R)
• M13: 4,901,425 km (0.093 R)
• M14: 5,106,374 km (0.095 R)
• M15: 5,652,556 km (0.106 R)
• M16: 6,754,493 km (0.077 R)
• M17: 6,891,226 km (0.105 R)
• M18: 7,306,659 km (0.11 R)
• M19: 8,016,950 km (0.067 R)
• M20: 8,453,776 km (0.1 R)
• M21: 8,650,347 km (0.072 R)
• M22: 9,148,658 km (0.081 R)
• M23: 10,016,774 km (0.083 R)
• M24: 10,224,865 km (0.055 R)
• M25: 12,439,063 km (0.106 R)
• M26: 12,887,857 km (0.049 R)
• M27: 13,284,889 km (0.095 R)
• M28: 14,558,715 km (0.116 R)
• M29: 15,750,262 km (0.117 R)
• M30: 15,871,137 km (0.094 R)
• M31: 16,113,785 km (0.069 R)
• M32: 16,174,671 km (0.106 R)
• M33: 16,418,815 km (0.087 R)
• M34: 16,725,790 km (0.092 R)
• M35: 16,849,208 km (0.102 R)
• M36: 18,098,949 km (0.109 R)
• M37: 18,479,825 km (0.072 R)
• M38: 19,313,833 km (0.068 R)
• M39: 20,819,386 km (0.051 R)
• M40: 20,885,658 km (0.101 R)
• M41: 21,284,935 km (0.05 R)
• M42: 21,485,545 km (0.107 R)
• M43: 21,552,565 km (0.072 R)
• M44: 23,595,175 km (0.117 R)
• M45: 23,733,553 km (0.081 R)
• M46: 24,150,183 km (0.12 R)
• M47: 24,779,840 km (0.082 R)
• M48: 25,131,993 km (0.091 R)
• M49: 25,627,611 km (0.084 R)
• M50: 26,198,178 km (0.12 R)
• M51: 26,556,913 km (0.072 R)
• M52: 27,642,695 km (0.08 R)
• M53: 27,861,556 km (0.056 R)
• M54: 30,910,510 km (0.101 R)
• M55: 31,441,583 km (0.101 R)
• M56: 32,512,704 km (0.073 R)
• M57: 33,285,077 km (0.088 R)
• M58: 33,362,569 km (0.103 R)
• M59: 33,829,314 km (0.074 R)
• M60: 33,985,345 km (0.092 R)
• M61: 34,063,435 km (0.118 R)
• M62: 34,141,675 km (0.039 R)
• M63: 35,084,441 km (0.051 R)
• M64: 36,915,070 km (0.059 R)
• M65: 37,640,021 km (0.099 R)
• M66: 38,776,815 km (0.108 R)
• M67: 40,172,264 km (0.076 R)
• M68: 42,086,369 km (0.032 R)
• M69: 43,265,948 km (0.062 R)
• M70: 43,774,731 km (0.104 R)
• M71: 43,944,823 km (0.116 R)
• M72: 46,089,159 km (0.107 R)
• M73: 46,956,378 km (0.079 R)
• M74: 48,267,304 km (0.084 R)
• M75: 48,883,199 km (0.058 R)
• M76: 49,678,760 km (0.111 R)
• M77: 50,122,617 km (0.102 R)
• M78: 50,300,638 km (0.079 R)
• M79: 51,731,542 km (0.115 R)
• M80: 52,723,077 km (0.064 R)
• M81: 52,994,597 km (0.108 R)
• M82: 54,633,292 km (0.116 R)
• M83: 54,907,954 km (0.064 R)
• M84: 55,458,923 km (0.112 R)
• M85: 57,215,351 km (0.058 R)
• M86: 58,334,044 km (0.083 R)
• M87: 58,521,191 km (0.086 R)
• M88: 61,352,480 km (0.087 R)
• M89: 61,638,063 km (0.072 R)
• M90: 61,828,650 km (0.103 R)
• M91: 62,880,623 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 15,058 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit