Name Host Star
Debris disc First resolved 
NO HD HIP Alias SpT Lbol [Lsun] T [K]  d [pc] Age [Myr] Rblackbody [AU] Rdisc [AU] fd [10-5] At wavelength Reference
1 105 490 - G0V 1.24 5940 38.9  30...40 36.8 ...
24.1 ± 9.0
 FIR
 Donaldson et al. 2012
2 166 544 HR 8 K0V 0.62 5577 14.0 170...320
7.5 27.3±13.5 4.8 FIR
 Eiroa et al. 2013
3 377 682 - G2V 1.00 39.1 147...250
... 86 ± 15 20 VIS/NIR
 Choquet et al. 2015
4 1461 1499  - G3VFe0.5  1.24  ... 23.5  ... ...
88.6±27.9  ... FIR Marschall et al. 2021
5 8907 6878 - F8 2.09 6250 34.8 320
... 36 ± 19
 25 sub-mm
Steele et al. 2016
6 9672 7345 49 Ceti A1V 20.0 9970 59.4 40
 63 172 83.6
 MIR Guild et al. 1999;
Jayawardhana et al. 2001
7 10647 7978 q1 Eri F9V 1.52 6155 17.0 960...1740 26.6 117 31 NIR; sub-mm
 Stapelfeldt et al. 2007;
Liseau et al. 2008
8 10700 8102 τ Ceti G8.5V 0.51 6000 4.0 10000 ± 500 8.5 60
1.2
 sub-mm
 Greaves et al. 2004
9 10939 8241 q2 Eri A1V 20.0 9300 62.0 305...379 143 ± 13 180 9.9 ± 1.0 FIR Moor et al. 2015
10 11413  8593 BD Phe F0VlA2mA2 22.7 ... 78.6 ... ... 175.6±40.7 ...  FIR Marshall et al. 2021
11 12467 10054 - A1.5V 15.2 ... 70.9 ... ... 128.7±64.5 ... FIR Marshall et al. 2021
12 13161 10064 β Tri A5III 73.4 8011 39.0 730 ± 300 89.0 ± 2.3
 143 3.10 FIR Booth et al. 2013
13 14055 10670 γ Tri A1Vnn 25.2 9127 34.0 160 ± 300 90.2 ± 5.8
 165 6.40 FIR Booth et al. 2013
14 15115 11360 - F2V 3.30 7000 45.0 30...40 35 315; 550 50 NIR Kalas et al. 2007 (a)
15 15745 11847 - F2V 3.30 6800 63.0 100 22 128-480 220 NIR Kalas et al. 2007 (b)
16 16743 12361 - F1III/IV4 5.20 6950 58.9 10...50 70 ± 10 370 ± 29 44.7±3.1 FIR Moor et al. 2015
17 17848 13141 ν Hor A2V 17.0 9040 50.0 269...467
101 ± 21
 222 6.5 ± 0.5 FIR Moor et al. 2015
18 17925 13402 - K1V 0.39 5217 10.0 140...400 17.9 ... 1.70 FIR Eiroa et al. 2013
19994 14954 94 Cet F8V 3.85 5187 23.0 1170...5670 95 ... 0.42 Images confused Yelverton et al. 2019
19 20320 15197 ζ Eri kA4hA9mA9V 10.9 7516 34.0 800 ± 100 39.7 ± 1.2
 157 2.00 FIR Booth et al. 2013
20 20794 15510 82 Eri G8V 0.66 5480 6.0 3900...11300 16.5 ± 7.5 ... 0.17 FIR Kennedy et al. 2015
21 20807 15371 ζ² Ret G0V 0.97 5851 12.0 2000...3000 47.7 100 1
 FIR Eiroa et al. 2010
22 21997 16449 - A3IV/V 14.0 8750 72.0 30
 67 ± 4 150 48 sub-mm Moor et al. 2013;
Kospal et al. 2013
23 22049 16537 ε Eri K2Vk 0.32 5135 3.0 500...1000
... 60 8 sub-mm
 Greaves et al. 1998
24 22484 16852 10 Tau F9V 3.20 6031 14.0 7590 18 ... 0.84 FIR Montesinos et al. 2016
25 23356 17420
- K2V
13.9 FIR Sibthorpe et al. 2017
26 23484 17439 - K2V 0.40 5166 16.0 760...930 21.3 91 8.10 FIR Eiroa et al. 2013
27 25821 19215 - F0 5.05 ... 160.0 ... ... 305.0±146.4 ... FIR Marshall et al, 2021
28 27290 19893 γ Dor F1V 6.70 7290 20.0 400...2190 52 134 1 FIR
 Broekhoven-Fiene et al. 2013
29 28355 20901 b Tau kA5hF0VmF0 17.6 7590 48.9 625 68.4 103 ± 28 2.5 FIR Morales et al. 2016
30 30422 22192 EX Eri A3Vb 8.29 7820 56.2 10 69.3 123 ± 16  3.3 FIR Morales et al. 2016
31 30447 22226 - F3V 3.70 6800 80.0 30 ... 60-200 79.0 NIR Soummer et al. 2014
32 30495 22263 - G1.5VCH-0.5 0.95 5814 13.0 440...1210 15.4 29.0±4.7 2.90 FIR Eiroa et al. 2013
33 31295 22845 7 Ori A3V 14.7 8666 35.7 126...516 74 ± 6
 129 ± 2
 6.09±0.70 FIR
 Draper et al. 2016
34 31392 22787 - G9V 0.565 ... 25.8 ... ... 126.4±103.8 ... FIR Marshall et al. 2021
35 32297 23451 - A0V 24.0 9600 112.0 30 ... 400 270 NIR Schneider et al. 2005
36 32977 23871 I Tau A5IV 22.9 ... 62.0 ... ... 268.9±122.5 ... FIR Marshall et al. 2021
37 33636 24205 - G0VH-03 1.05 ... 28.7 2500 37 ... 5.4 FIR Dodson-Robinson et al. 2016
38 35650 25283 - K5V 0.13 4000 18.0 50...200 ...
 54 ± 14 17.5  NIR Choquet et al. 2015
39 35841 - - F3V 2.00 6500 96.0 30 ... 144 130 NIR Soummer et al. 2014
40 36546 26062 - B8 20.04
10000
113.9  3...10 ...
34-114  400 NIR Currie et al. 2017
41 37594 26624 - A9V 5.7 ... 41.9 ... ... 131.3±35.0 ... FIR Marshall et al. 2021
42 38206 26966 HR 1975 A0V 22.4 9680 75.1 9 159.1 170 ± 7 26 FIR Morales et al. 2016
43 38397 26990  - G0V 1.40 6000
55.4 30 46 ± 7 90 ± 21 54 ± 7 FIR
 Moor et al. 2016
44 38529 27253 - G8III 6.91 ... 42.4 ... ... 108.1±54.3 ... FIR Marshall et al. 2021
45 38678 27288 ζ Lep A2IV-V(n) 17.0 9000 22.0 231...330 ... 3 8.9 MIR Moerchen et al. 2010
46 38858 27435 - G2V 0.83 5780 16.4 200...9300 ... 135 8.8 FIR
  Krist et al. 2012
47 39060 27321 β Pic A6V 8.79 8200 19.0 23 ± 3 ...  80...150 243 ± 11 VIS/NIR Smith & Terrile 1984
48 43834 29271 α Men G7V 0.85 5591 10.0 5500 > 147.3 81 0.097 FIR
 Eiroa et al. 2011
49 45184 30503 - G2Va 1.17 ... 22.0 ... ... 77.1±64.3 ... FIR Marshall et al. 2021
50 48370 - - K0V 0.72 5600 35.0 30 39 ± 5 89 ± 18 56 ± 2 FIR
  Moor et al. 2016
51 48682 32480 56 Aur G0V 1.75 6086 17.0 1380...6320 28.5 142 6.90 FIR Eiroa et al. 2013
52 50571 32775 - F5VFe+0.4 2.70 6700 34.0 180...420 64 ± 6 138 1.3 ± 0.1 FIR Moor et al. 2011
53 50554 33212 - F8V 1.51  6048 31.0 3300 27 ... 4.1 FIR Dodson-Robinson et al. 2016
54 52265 33719 - G0V 2.04  ... 28.1 2600 32 ... 2.0 FIR Dodson-Robinson et al. 2016
55 53143 33690 - G9V 0.40 5335 18.0 1000 ± 200 9 55-110 25 NIR Kalas et al. 2006
56 54341 34276
- A0V 24.1 9500 102.4
10 106.7 ± 2.9 185 ± 18 26.1±0.09 FIR
 Vican et al. 2016
57 61005 36948 - G8Vk 0.56 5456 35.0 40 7...16 240 200 NIR Hines et al. 2007
58 69830 40693 HR 3259 G8+V 0.60 5500 12.5 2000
... 2.4 ?
 20.0 MIR Smith et al. 2009
59 70313 41152 - A3V 14.0 8700 50.0 300
118.1 146 ± 11
7.10 FIR Morales et al. 2013
60 71155 41307 30 Mon A0V 34.5 9401 38.0 170 ± 300 39.2 ± 6.7
 88 2.9±0.9 MIR Moerchen et al. 2010
61 71722 41373 A0V 24.0 9600 69.0 100 124.4 138 ± 28
 10.90 FIR Morales et al. 2013
62 73350 42333 V401 Hya G8/K0(IV) 1.00 ... 24.3 ... ... 100.4±84.6 ... FIR Marshall et al. 2021
63 74873 43121 50 CnC A1Vp 12.6 8380 54.0 100 155.2 104 ± 30 3.4 FIR Morales et al. 2016
64 76543 43970
62 CnC A5III 13.4 8200 45.7 400 119.2 ± 20.2 162 ± 11 4.81±0.40 FIR Vican et al. 2016
65 76582 44001 63 CnC F0IV 8.80 7700 46.1 300...2130 35 271 ± 10
 17±2
 FIR Marshall et al. 2016
66 82943 47007 - F9VFe+0.5 1.70 6250 27.5 2900 ... 67 10 FIR
 Kennedy et al. 2013
67 84870 48164 - A3 7.80 7600 88.0 100...520 75.1 ± 5.4 252 ± 16 45 ± 10
 FIR Vican et al. 2016
68 85301 48423 - G5 0.73 5510 32.8 630 15.0 100 ± 34 21.2 FIR Morales et al. 2016
69 85672  48541 - A0 8.30 8000 107.1 30 37.9 ± 5.6 186 ± 28 59.9±10.3 FIR Vican et al. 2016
70 88230 49908 - K8V 0.13 4081 5.0 6600
...
 51
0.16 FIR Eiroa et al. 2011
71 89452 - TYC 251-1015-1 K0 0.353 ... 36.3 ... ... 69.7±35.4 ... FIR Marshall et al. 2021
72 90089 51502 HR 4084 F2V 2.84 6710 22.0 300 145 ... 1.30 FIR Eiroa et al. 2013
73 90839 51459 36 UMa F8V 1.55 6137 13.0 1030...2970 38.6 ... 0.09 FIR
 Eiroa et al. 2013
74 90905 51386 - G1V 1.42 6010 31.5 440 24.4 87 ± 27 3.5 FIR Morales et al. 2016
75 92945 52462 V419 Hya K1V 0.32 5125 21.0 80...300 23 65-110 75.9 VIS Golimowski et al. 2011
76 95086 53524 - A8III 7.00 7627 90.0 13...21 67 ± 6 230 150.1±5.5 FIR Moor et al. 2013
77 95418 53910 β Uma A1IVps 59.7 9291 24.0 310 ± 100 42.2 ± 2.6
 61 1.30±0.2 MIR Moerchen et al. 2010;
Matthews et al. 2010
78 95698 53963 8 Crt A9III 8.60 ... 57.4 ... ... 147.3±59.5 ... FIR Marshall et al. 2021
79 98363 55188
 - A2V
 8830  138.6 64
NIR  Hom et al. 2019
80 98800 55505 TV Crt K4V 0.18 4600 45.0 10 ... 15
6200 sub-mm Andrews et al. 2010
81 99945  56253 - kA2hF1mF0 9.40 7600 59.2 300
166.5 ± 27.7
198 ± 18 5.93±0.35 FIR Vican et al. 2016
82 102647 57632 β Leo A3Va 13.5 8380 11.0 45 23 39 2.2 FIR
 Matthews et al. 2010
83 104860 58876 -
F8 1.40 6300 45.0 200
48.3 122 ± 6
 62.2 FIR Morales et al. 2013
84 105211 59072 η Cru F2V 7.31 7250 19.8 1400
86
154 5.4 FIR Dodson-Robinson et al. 2016
85 106906 59960 - F5V 5.40 6750 91.8 13±2 ... 65 140 VIS Kalas et al. 2015
86 107146 60074 -
G2V 1.10 5859 27.0 80...200 ... 97...130 92 ± 9
 FIR; sub-mm
 Corder et al. 2009
87 109085 61174 η Crv F2V 3.80 7000 18.0 1400 109 145  36 sub-mm Wyatt et al. 2005
88 109573 61498 HR 4796 A0 22.8 10000 72.8 8...20 30 70.4 ± 1.4 470 ± 25 NIR Schneider et al. 1999
89 110058 61782 - A0V 7.28 9000 107.4 17 ... 20...65 189 ± 33
 NIR Kasper et al. 2015
90 110411 61960 ρ Vir A0V 13.2 8817 36.0 500 ± 100 43.1 ± 2.8
 111 5.00 FIR Booth et al. 2013
91 110897 62207 10 CVn G0V 1.06 5860 17.0 6240 18.3 ... 2.10 FIR
  Eiroa et al. 2013
92 111161 62482
 - A3III/IV
8073
 109.4
... 71  55 NIR  Hom et al. 2019
93 111520 62657 - F5/6V 2.90 6500 108.0 17 ± 5 48 70 100 NIR Draper et al. 2016
94 112810 63439 - F3/5IV/V 3.70 6617 143.0 17 ... ... ... sub-mm Lieman-Sifry et al. 2016
95 113337 63584 HR 4934 F6V 4.40 6750 36.9 183...6494 ...
... ... FIR Su et al. 2013
96 113766 63975 - F3/5V+F6V 17.3 7250 122.5 16 ...
9...13
2230 MIR Smith et al. 2012
97 114082 64184 - F3V 3.6 6697 85.5 16 ± 8 ... 27.7 330 NIR Wahhaj et al. 2016
98 115600 64995 - F2IV/V 5.00
6867
110.5 15 ... 48 170 NIR  Currie et al. 2016
99 115617 64924 61 Vir G7V 0.80 5525 9.0 4600 ± 900 ... 30...100 2.7
FIR
 Wyatt et al. 2012
100 117214 65875 - F6V 5.64 6400 107.6 17 ... 45 31.0 NIR Engler et al. 2019
101 120326 67497 - F0V 4.05  6983 107.4 16 ... 116.5 111.4 VIS/NIR Bonnefoy et al. 2016
102 121191 - - A5IV/V 7.20 7690 132.1 ... 52.1±10.5 240 sub-mm Kral et al. 2020
103 125162 69732 λ Boo A0p 17.1 8608 30.0 290 ± 100 38.6 ± 1.0
 112 5.10 FIR Booth et al. 2013
104 127821 70952 HR 5436 F4IV 3.00 6750 31.8 211...6131 55 ... 22 ± 4
 FIR Su et al. 2013
105 128311 71395 HN Boo K3V 0.30 5000 16.5 310
35 58 3.2 FIR Herschel Science Archive
106 129590 72070 -
G1V 2.90 5918 133.0 16 ... 60...70 500
 sub-mm Lieman-Sifry et al. 2016
107 131488 - - A1V 13.1 147.7 16 ... 84±3 550 sub-mm Moór et al. 2017
108 131511 72848 DE Boo K0V 0.49 5335 11.5 570...700 6 74 0.28 FIR Marshall et al. 2014
109 131835 73145 - A2 9.20 9000 122.0 16 ... 75...210 199 ± 33
 NIR
Hung et al. 2015
110 136246 75077 - A1V 21.7 8510 131.6 15 180.7 359 ± 115 4.1 FIR Morales et al. 2016
111 138813 76310 -
A0V 23.1 8883 151.0 11 ... ... ... sub-mm
 Lieman-Sifry et al. 2016
112 138965 76736 HR 5792 A1V 12.4 8630 78.5 100 156.2 187 ± 6 39.8 FIR Morales et al. 2016
113 139006 76267 α CrB A0V 59.8 9302 23.0 270 ± 100 40.4 ± 2.3
 61 1.70±0.2 MIR
 Moerchen et al. 2010
114 139664 76829 g Lup F5V 2.70 6700 17.0  300 ± 700
 21-61 83-109 12 NIR Kalas et al. 2006
115 141011 77432 - F5V  3.39 128.4 16 ... 127.5 ± 3.8 37 NIR Bonnefoy et al. 2021
116 141133 77441 - F2/3V 5.55 ... 113.8 ... ... 243.5±142.0 ... FIR Marshall et al. 2021
117 141378  77464 - A5IV-V 11.3 8300 54.0  150 92.4 118 ± 8 5.6 FIR Morales et al. 2016
118 141569 77542 - A0Ve 29.6
 10000
116.1 5 24 160...400 730
 VIS/NIR  Weinberger et al. 1999
119 141943 - NZ Lup G2V 2.90 6000 67.0 17...32 ... 47-167
12.0 NIR
 Soummer et al. 2014
120 142091 77655 κ CrB K1IVa 12.9 4800 30.0 2500 75 131 5.4 FIR
Bonsor et al. 2013
121 142446 78043 - F3V 4.30 6639 144.0 16 ... ...
... sub-mm Lieman-Sifry et al. 2016
122 143675 78641 -
A5IV/V
8200
113.4
...  44 41 NIR  Hom et al. 2019
123 143894 78554  44 Ser  A3V  29.1 54.9 300 148±37 561±69  3.2 sub-mm Holland et al. 2017
124 145560 79516 - F5V 4.00 6495 134.0 16 ... ... ... sub-mm Lieman-Sifry et al. 2016
125 146181 79742 - F6V 3.80 6516 146.0 16 ... ... ... sub-mm
 Lieman-Sifry et al. 2016
126 146897 79977 - F2/F3V 4.20 6750 122.7 5...10
... 40 590 NIR
 Thalmann et al. 2013
127 153053 83187 - A5IV/V 10.6 7820 51.8 800 86.9 186 ± 12 3.7 FIR Morales et al. 2016
128 156623 84881 - A0V 15.0 8638 118.0 ... ...
... ... sub-mm Lieman-Sifry et al. 2016
129 157587 85224 - F5V 3.86 6457 107.4 2200...3000 ... 80 79 VIS/NIR Millar-Blanchaer et al. 2016
130 158633 85235 - K0V 0.41 5290 13.0 5310
24.6 33.3±6.6 2.00 FIR
 Eiroa et al. 2013
131 158643 85755 c Oph A0V 173 ... 122.7 ... ... 209.1±86.4 ... FIR Marshall et al. 2021
132 159492 86305 π Ara A5IV-V 11.0 8300 45.0  170 53.5 116 ± 11
6.8 FIR Morales et al. 2013
133 160305 86598 - F8/G0V 1.97 6050 65.5 23 58±13 90 12±4 NIR Perrot et al. 2019
134 161868 87108 γ Oph A0V 24.0 9600 32.0 312...532 89 ± 9 143 10.3±0.9 MIR/FIR Su et al. 2008
135 164249 88399 - F6V 3.20 6340 49.6 23 39 ± 8 63 ± 24 94.2 sub-mm Pawellek et al. 2021
136 165908 88745 99 Her F7V 1.50 6400 16.0 6000...10000
45
120 1.4 FIR
 Kennedy et al. 2012
137 170773 90936 HR 6948 F5V 2.70 6700 37.0 200 100 ± 11
 207 5.1 ± 0.1 FIR
 Moor et al. 2011
138 172167 91262 Vega A0V 28...60 7900...10150 8.0 350 113...166 85...115 1.2 FIR
 Holland et al. 1998
139 172555 92024 HR 7012 A7V 9.60 8250 28.5 23 ± 3
 ...
7.9 78 ± 7
 MIR Smith et al. 2012
140 173667 92043 - F6V 6.14 6431 19.0 300...4740 213.3 ... 0.07 FIR Eiroa et al. 2013
141 176894 93327 - F0 4.55 ... 83.0 ... ... 316.7±124.3 ... FIR Marshall et al. 2021
142 181296 95261 η Tel A0V 22.0 9506 48.0 23 ± 3 ... 24 24 ± 2
 MIR
 Smith et al. 2009
143 181327 95270 - F6V 2.00 6550 52.0 23 ± 3
 25 86.3 ± 3.9 293 ± 16
 VIS/NIR Schneider et al. 2006
144 181869 95347 α Sgr B8V 73.0 12300 56.0 110
... 4.12±0.11 0.2
 MIR Moerchen et al. 2010
145 182681 95619 HR 7380 B9V 42.0 11400 70.0 19...208 56 ± 2 184 2.8 ± 0.1 FIR Moor et al. 2015
146 183324 95793 c Aql A1IVp 13.0 8630 61.2 10 187.7 169 ± 36 1.4 FIR Morales et al. 2016
147 187897 97779 - G5 1.23 ... 32.3 ... ... 90.1±27.1 ... FIR Marshall et al. 2021
148 188228 98495 ε Pav A0Va 25.6 9794 32.0 250 ± 100 51.9 ± 3.7
 106 0.50 FIR Booth et al. 2013
149 189002 98304 - F6V 2.8 ... 142.6 ... ... 592.1±469.4 ... FIR Marshall et al. 2021
150 191089 99273 - F5V 3.20 6441 52.0 23 ± 3 ... 73 191 ± 22
 VIS/NIR Churcher et al. 2011
151 191174 98872 - A2II/III 15.2 8890 79.2 ... 108.4 237 ± 57 6.8 FIR Morales et al. 2016
152 192263 99711 - K2.5V 0.31 4975 19.3 5900±3900 11 53 2.4 FIR  Marshall et al. 2021
153 192425 99742 ρ  Aql A1Va 18.0 8540 46.0 120 133.3 228 ± 12 4.9 FIR Morales et al. 2016
154 192758 - - F0V 67.0
50...830 ...
95 56 NIR Choquet et al. 2016
155 195627 101612 φ1 Pav F0V 5.10 7300 28.0 462...1100 102 ± 13 175 11.5 ± 0.8 FIR Moor et al. 2015
156 197481 102409 AU Mic M1Ve 0.10 3500 10.0 23 ± 3
 11 38 39 VIS
Kalas et al. 2004
157 202206 104903 - G6V 1.07 5800 46.3 1100 40 ... 13 FIR Dodson-Robinson et al. 2016
158 202628 105184 - G5V 1.00 5680 24.0 2000 ...  162...254 14 FIR Krist et al. 2012
159 202917 105388 - G7V 0.70 5553 43.0 30...40 33 107 29 ± 8
 NIR  Krist et al. 2007;
Soummer et al. 2014
160 205674 106741 - F3/5IV 3.44 ... 56.4 ... ... 114.6±55.3 ... FIR Marshall et al. 2021
161 206893 107412 - F5V 6486 38.#3 0.2...2.1 ...  ...  ... NIR Milli et al. 2017
162 207129 107649 - G2V 1.26 5912 16.0 30...8300 35 148 10.0 FIR Krist et al. 2010
163 216435 113044 tau01 Gru G0V 3.55 ... 33.0 ... ... 68.4±45.5 ... FIR Marshall et al. 2021
164 216956 113368 Fomalhaut A4V 17.8 8760 8.0 220  73 123 8 sub-mm Holland et al. 1998
165 218396 114189 HR 8799 A5V 5.70 7250 39.0 30 140 293 23 ± 2
 FIR
 Su et al. 2009
166 219482 114948
GJ 1282 F6V
... ... 20.5
... ... ... ... ... Sibthorpe et al. 2017
167 278932 - - G5 37.9 ... 294.4 ... ... 1238±1048 ... FIR Marshall et al. 2021
168 - - TWA 7 M3.2 0.07 3408 34.5 8...20
 ... 45 ± 5
220 VIS/NIR  Choquet et al. 2015
169 - 1368 GJ 14 M0.5V  0.111 14.7 13 54.5 ± 12.4 3.4
FIR Sibthorpe et al. 2017
170 - 74995 GJ 581 M5V 0.012 3498 6.0 2000...8000
... 25 ± 12 8.90 FIR Lestrade et al. 2012
171 - 83043 GJ 649 M2V 0.044 10.4 6 10-30 7 FIR Kennedy et al. 2018
172 - - TWA 25 M0.5 0.25 4020 54.0  8...20 ... 78 ± 17 ...
 VIS/NIR Choquet et al. 2015
173 - - CP 722713 K7Ve 0.2 3900 36.5 ... ... 102.2 102 FIR Moór et al.2020
174 - - BD +45 598 K1V 1.4 5280 73.2 23 ... 70 39 VIS/NIR Hinkley et al. 2021
175 - - Fomalhaut C M4V 0.005   7.7 440 13 26±4 15 sub-mm Cronin-Coltsmann et al. 2021