2011A&A...532A...6S

Query : 2011A&A...532A...6S

2011A&A...532A...6S - Astronomy and Astrophysics, volume 532A, 6-6 (2011/8-1)

Estimation of the XUV radiation onto close planets and their evaporation.

SANZ-FORCADA J., MICELA G., RIBAS I., POLLOCK A.M.T., EIROA C., VELASCO A., SOLANO E. and GARCIA-ALVAREZ D.

Abstract (from CDS):

The current distribution of planet mass vs. incident stellar X-ray flux supports the idea that photoevaporation of the atmosphere may take place in close-in planets. Integrated effects have to be accounted for. A proper calculation of the mass loss rate through photoevaporation requires the estimation of the total irradiation from the whole XUV (X-rays and extreme ultraviolet, EUV) range. The purpose of this paper is to extend the analysis of the photoevaporation in planetary atmospheres from the accessible X-rays to the mostly unobserved EUV range by using the coronal models of stars to calculate the EUV contribution to the stellar spectra. The mass evolution of planets can be traced assuming that thermal losses dominate the mass loss of their atmospheres. We determine coronal models for 82 stars with exoplanets that have X-ray observations available. Then a synthetic spectrum is produced for the whole XUV range (∼1-912Å). The determination of the EUV stellar flux, calibrated with real EUV data, allows us to calculate the accumulated effects of the XUV irradiation on the planet atmosphere with time, as well as the mass evolution for planets with known density. We calibrate for the first time a relation of the EUV luminosity with stellar age valid for late-type stars. In a sample of 109 exoplanets, few planets with masses larger than ∼1.5MJ receive high XUV flux, suggesting that intense photoevaporation takes place in a short period of time, as previously found in X-rays. The scenario is also consistent with the observed distribution of planet masses with density. The accumulated effects of photoevaporation over time indicate that HD 209458b may have lost 0.2MJ since an age of 20Myr. Coronal radiation produces rapid photoevaporation of the atmospheres of planets close to young late-type stars. More complex models are needed to explain the observations fully. Spectral energy distributions in the XUV range are made available for stars in the sample through the Virtual Observatory for the use in future planet atmospheric models.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: coronae - astrobiology - X-rays: stars

Simbad objects: 196

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Number of rows : 196
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 1237 PM* 00 16 12.6780107483 -79 51 04.244506480 7.692 7.335 6.578     G8V 233 1
2 HD 1237b Pl 00 16 12.6780107483 -79 51 04.244506480           ~ 60 1
3 * 54 Psc PM* 00 39 21.8053928046 +21 15 01.712899720 7.29 6.71 5.88 5.21 4.82 K0.5V 582 1
4 * 54 Psc b Pl 00 39 21.8053928046 +21 15 01.712899720           ~ 54 2
5 HD 4308 PM* 00 44 39.2672095011 -65 38 58.277728125 7.31 7.193 6.552     G6VFe-0.9 245 1
6 HD 4308b Pl 00 44 39.2672095011 -65 38 58.277728125           ~ 31 1
7 * ups And PM* 01 36 47.8415443907 +41 24 19.651368029 4.70 4.64 4.10 3.64 3.35 F9V 963 1
8 * ups And b Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 272 1
9 * ups And c Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 156 1
10 * ups And e Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 30 1
11 * ups And d Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 164 1
12 * q01 Eri PM* 01 42 29.3145176952 -53 44 26.991453264   6.05 5.52     F9V 323 1
13 * q01 Eri b Pl 01 42 29.3145176952 -53 44 26.991453264           ~ 38 1
14 * alf Ari b Pl 02 07 10.40570 +23 27 44.7032           ~ 11 1
15 * alf Ari PM* 02 07 10.40570 +23 27 44.7032 4.29 3.17 2.01 1.15 0.54 K2-IIIbCa-1 622 2
16 HD 13445 PM* 02 10 25.9181700303 -50 49 25.465181208   6.945 6.117     K1.5V 456 1
17 HD 13445b Pl 02 10 25.9181700303 -50 49 25.465181208           ~ 103 1
18 * 30 Ari B PM* 02 36 57.7454168256 +24 38 53.000422908   7.59 7.09     F6V 143 1
19 * iot Hor PM* 02 42 33.4666679022 -50 48 01.055138166   5.97 5.40     F8V 394 1
20 V* VY Ari RS* 02 48 43.7287198695 +31 06 54.592461256   7.72   6.4   G9 225 0
21 HD 20367 PM* 03 17 40.0468295160 +31 07 37.360398072   6.962 6.399     F8V 130 1
22 HD 20367b Pl 03 17 40.0468295160 +31 07 37.360398072           ~ 24 1
23 * kap01 Cet BY* 03 19 21.6964175772 +03 22 12.714979884 5.71 5.52 4.85 4.27 3.91 G5V 890 0
24 V* UX Ari RS* 03 26 35.3756804760 +28 42 54.226408428 7.76 7.28 6.37     K0IV 697 0
25 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 1932 1
26 * eps Eri b Pl 03 32 55.8444911587 -09 27 29.739493865           ~ 146 1
27 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1167 0
28 * eps Ret b Pl 04 16 29.0281470260 -59 18 07.755891304           ~ 51 1
29 * eps Ret PM* 04 16 29.0281470260 -59 18 07.755891304 6.59 5.52 4.44 3.62 3.08 K2III 238 1
30 HD 285968 PM* 04 42 55.7750207949 +18 57 29.395947044 12.668 11.49 9.951 8.931 7.702 M2.5V 335 2
31 HD 285968b Pl 04 42 55.7750207949 +18 57 29.395947044           ~ 47 1
32 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1021 0
33 * pi. Men b Pl 05 37 09.8868446714 -80 28 08.834553264           ~ 72 1
34 HD 38529b Pl 05 46 34.9131388488 +01 10 05.502949860           ~ 87 1
35 HD 38529 PM* 05 46 34.9131388488 +01 10 05.502949860       5.4   G8III/IV 348 2
36 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1905 1
37 * bet Pic b Pl 05 47 17.0876901 -51 03 59.441135           ~ 511 1
38 HD 41004 PM* 05 59 49.6501762752 -48 14 22.888358520   9.49 8.62     K1IV 204 1
39 HD 46375b Pl 06 33 12.6224391648 +05 27 46.528531452           ~ 70 1
40 HD 46375 PM* 06 33 12.6224391648 +05 27 46.528531452   8.70 7.84     G9V 234 2
41 HD 48265 * 06 40 01.7270326320 -48 32 31.043282568   8.78 8.03     G5IV/V 58 1
42 HD 48265b Pl 06 40 01.7270326320 -48 32 31.043282568           ~ 17 1
43 HD 49674b Pl 06 51 30.5162069160 +40 52 03.924103260           ~ 53 1
44 HD 49674 PM* 06 51 30.5162069160 +40 52 03.924103260   8.83 8.10     G3V 144 1
45 HD 50554b Pl 06 54 42.8261485848 +24 14 44.005690212           ~ 45 1
46 HD 50554 PM* 06 54 42.8261485848 +24 14 44.005690212   7.41 6.84     F8V 196 1
47 HD 52265 PM* 07 00 18.0357115416 -05 22 01.780929120   6.845 6.282     G0V 329 1
48 HD 52265b Pl 07 00 18.0357115416 -05 22 01.780929120           ~ 47 1
49 BD-13 2130 * 07 37 09.2332503816 -13 54 23.956897032   11.31 10.04     G5IV-V/K2III 67 1
50 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1864 0
51 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1101 2
52 HD 70642 PM* 08 21 28.1368486179 -39 42 19.484303527   7.89 7.18     G6VCN+0.5 170 1
53 HD 70642b Pl 08 21 28.1368486179 -39 42 19.484303527           ~ 38 1
54 V* V478 Hya BY* 08 22 49.9527726648 +01 51 33.552251064   9.30 8.711   7.999 G1/2V 99 2
55 HD 70573b Pl 08 22 49.9527726648 +01 51 33.552251064           ~ 12 1
56 * pi.02 UMa b Pl 08 40 12.8171670288 +64 19 40.570243212           ~ 20 1
57 * pi.02 UMa PM* 08 40 12.8171670288 +64 19 40.570243212 6.94 5.78 4.61 3.72 3.09 K1+III 165 1
58 NAME L 675-81b Pl 08 40 59.2057867166 -23 27 22.592748045           ~ 34 1
59 L 675-81 Pe* 08 40 59.2057867166 -23 27 22.592748045   13.2 11.975 11.637 9.37 M3.5V 146 1
60 HD 75289b Pl 08 47 40.3893739728 -41 44 12.455319264           ~ 89 1
61 HD 75289 PM* 08 47 40.3893739728 -41 44 12.455319264 7.04 6.94 6.36     F9VFe+0.3 279 1
62 * rho01 Cnc EB* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1121 1
63 * rho01 Cnc d Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 155 1
64 * rho01 Cnc f Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 62 1
65 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 576 1
66 * rho01 Cnc b Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 259 1
67 * rho01 Cnc c Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 143 1
68 HD 87883b Pl 10 08 43.1405863056 +34 14 32.146654632           ~ 35 1
69 HD 87883 PM* 10 08 43.1405863056 +34 14 32.146654632   8.54 7.55     K0V 112 1
70 V* AD Leo Er* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1340 1
71 HD 89744 PM* 10 22 10.5618854376 +41 13 46.309698444       5.4   F7V 337 1
72 HD 89744b Pl 10 22 10.5618854376 +41 13 46.309698444           ~ 58 1
73 HD 93083b Pl 10 44 20.9150176896 -33 34 37.287898176           ~ 28 1
74 HD 93083 PM* 10 44 20.9150176896 -33 34 37.287898176   9.27 8.33     K2IV-V 110 1
75 BD-10 3166b Pl 10 58 28.7841138528 -10 46 13.394735436           ~ 43 1
76 BD-10 3166 PM* 10 58 28.7841138528 -10 46 13.394735436   10.88 10.01 9.85 9.19 K3.0V 133 1
77 HD 95089 PM* 10 58 47.7361917120 +01 43 45.170499324   8.897 7.95     G8/K0IV 50 1
78 HD 95089b Pl 10 58 47.7361917120 +01 43 45.170499324           ~ 13 1
79 * 47 UMa d Pl 10 59 27.9727514012 +40 25 48.920572724           ~ 26 1
80 * 47 UMa PM* 10 59 27.9727514012 +40 25 48.920572724   5.66   4.7   G1-VFe-0.5 773 1
81 * 47 UMa c Pl 10 59 27.9727514012 +40 25 48.920572724           ~ 99 1
82 * 47 UMa b Pl 10 59 27.9727514012 +40 25 48.920572724           ~ 156 1
83 * ksi UMa B SB* 11 18 10.8360115405 +31 31 44.821690914   5.41 4.77 4.4   G2V 335 1
84 * 83 Leo Bb Pl 11 26 46.2783265113 +03 00 22.756723728           ~ 41 1
85 * 83 Leo B PM* 11 26 46.2783265113 +03 00 22.756723728 9.467 8.554 7.530 6.97 6.508 K3 201 1
86 * 83 Leo Bc Pl 11 26 46.2783265113 +03 00 22.756723728           ~ 10 1
87 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 645 1
88 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 810 1
89 HD 101930 PM* 11 43 30.1133767737 -58 00 24.778676929   9.12 8.21     K2V+ 110 1
90 HD 101930b Pl 11 43 30.1133767737 -58 00 24.778676929           ~ 25 1
91 HD 102195b Pl 11 45 42.2928676296 +02 49 17.324140440           ~ 52 1
92 HD 102195 PM* 11 45 42.2928676296 +02 49 17.324140440       7.6   K0V 143 1
93 HD 102365 PM* 11 46 31.0725331317 -40 30 01.285867174 5.65 5.55 4.88 4.35 3.97 G2V 331 1
94 HD 102365b Pl 11 46 31.0725331317 -40 30 01.285867174           ~ 23 1
95 TWA 27 LM* 12 07 33.4675524840 -39 32 54.016625184     19.95 17.99 15.88 M8IVe 338 0
96 HD 108147b Pl 12 25 46.2673666032 -64 01 19.516186956           ~ 56 1
97 HD 108147 PM* 12 25 46.2673666032 -64 01 19.516186956   7.532 6.994     F8/G0V 178 1
98 HD 111232 PM* 12 48 51.7525624903 -68 25 30.554783455   8.29 7.61     G8VFe-1.0 150 1
99 HD 111232b Pl 12 48 51.7525624903 -68 25 30.554783455           ~ 34 1
100 HD 114386 PM* 13 10 39.8240970781 -35 03 17.214743596   9.80 8.71     K3V 121 1
101 HD 114386b Pl 13 10 39.8240970781 -35 03 17.214743596           ~ 28 1
102 HD 114762 SB* 13 12 19.7410686234 +17 31 01.630334317 7.78         F9VgF8mF4+M6?V 547 1
103 HD 114762C LM* 13 12 19.7410686234 +17 31 01.630334317           ~ 129 0
104 HD 114783b Pl 13 12 43.7855575272 -02 15 54.130663296           ~ 41 1
105 HD 114783 PM* 13 12 43.7855575272 -02 15 54.130663296 9.137 8.469 7.550 7.053 6.627 K1V 193 1
106 * 61 Vir c Pl 13 18 24.3139864471 -18 18 40.297748582           ~ 40 1
107 * 61 Vir d Pl 13 18 24.3139864471 -18 18 40.297748582           ~ 34 1
108 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 674 1
109 * 61 Vir b Pl 13 18 24.3139864471 -18 18 40.297748582           ~ 55 1
110 NAME Cen B QSO 13 46 49.04248361 -60 24 29.3553900         15.74 ~ 153 0
111 * tau Boo Ro* 13 47 15.7381720026 +17 27 24.809555600 5.02 4.98 4.49 4.09 3.85 F7IV-V 988 1
112 * tau Boo b Pl 13 47 15.7381720026 +17 27 24.809555600           ~ 285 1
113 HD 128311b Pl 14 36 00.5602765558 +09 44 47.454573266           ~ 73 1
114 HD 128311c Pl 14 36 00.5602765558 +09 44 47.454573266           ~ 61 1
115 HD 128311 BY* 14 36 00.5602765558 +09 44 47.454573266 9.232 8.441 7.446 6.895 6.425 K3V 311 1
116 V* EK Dra BY* 14 39 00.2104038120 +64 17 29.979649860   8.243 7.604     G5VFe-0.7CH-1(k) 444 0
117 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 1024 2
118 HD 130322b Pl 14 47 32.7262287384 -00 16 53.307811560           ~ 60 1
119 HD 130322 PM* 14 47 32.7262287384 -00 16 53.307811560   8.82 8.04     K0V 276 1
120 * iot Dra V* 15 24 55.7738042889 +58 57 57.837111857 5.68 4.45 3.29 2.51 1.91 K2III 409 1
121 V* GQ Lup B LM* 15 49 12.05 -35 39 05.1           M9e 132 1
122 V* GQ Lup Or* 15 49 12.1053805848 -35 39 05.058139788 12.19 12.76 11.66 11.15   K7Ve 290 1
123 HD 330075b Pl 15 49 37.6937569728 -49 57 48.678348924           ~ 32 1
124 HD 330075 PM* 15 49 37.6937569728 -49 57 48.678348924   10.23 9.33     G5 99 1
125 HD 142415 PM* 15 57 40.7919331560 -60 12 00.922058568   7.94 7.34     G1V 113 1
126 HD 142415b Pl 15 57 40.7919331560 -60 12 00.922058568           ~ 32 1
127 RX J1609.5-2105 Y*O 16 09 30.3075290712 -21 04 58.943800992   14.21 12.77 12.25 10.99 M0.0e 92 0
128 RX J1609.5-2105B LM* 16 09 30.377 -21 04 56.97           ~ 118 0
129 * 14 Her b Pl 16 10 24.3156759007 +43 49 03.507406809           ~ 82 1
130 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 453 1
131 LP 804-27 PM* 16 12 41.7794090112 -18 52 31.811741544 14.015 12.88 11.372 10.289 9.37 M3V 67 1
132 * sig CrB RS* 16 14 40.85557 +33 51 30.9497           F6V+G0V 493 0
133 HD 147513 PM* 16 24 01.2911377368 -39 11 34.729913940 6.17 6.02 5.376     G5V 350 1
134 HD 147513b Pl 16 24 01.2911377368 -39 11 34.729913940           ~ 51 1
135 HD 150706 PM* 16 31 17.5830478008 +79 47 23.197555824   7.622 7.016     G0 213 1
136 HD 150706b Pl 16 31 17.5830478008 +79 47 23.197555824           ~ 41 1
137 HD 154345b Pl 17 02 36.4038090379 +47 04 54.764174452           ~ 45 1
138 HD 154345 PM* 17 02 36.4038090379 +47 04 54.764174452   7.50   6.3   G9 270 1
139 HD 156384B * 17 18 56.246856 -34 59 22.23708   8.82 7.38     K4 27 0
140 HD 156384A * 17 18 56.415192 -34 59 22.48188   7.52 6.37     K3 31 0
141 HD 156384C PM* 17 18 58.8272997802 -34 59 48.612673382 12.96 11.79 10.22 10.05 8.82 M1.5V 221 1
142 CD-46 11540b Pl 17 28 39.9455781571 -46 53 42.688095874           ~ 53 1
143 CD-46 11540 LM* 17 28 39.9455781571 -46 53 42.688095874 12.177 10.973 9.407 8.337 7.006 M3V 254 1
144 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 531 2
145 * mu. Ara c Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 89 2
146 * mu. Ara b Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 92 2
147 * mu. Ara d Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 67 2
148 * mu. Ara e Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 45 2
149 HD 164922b Pl 18 02 30.8623420470 +26 18 46.805024012           ~ 29 1
150 HD 164922 PM* 18 02 30.8623420470 +26 18 46.805024012   7.79   6.5   G9V 215 1
151 HD 169830 * 18 27 49.4849984976 -29 49 00.700831380   6.406 5.902 7.01   F7V 280 1
152 HD 169830c Pl 18 27 49.4849984976 -29 49 00.700831380           ~ 46 1
153 HD 169830b Pl 18 27 49.4849984976 -29 49 00.700831380           ~ 55 1
154 HD 176051b Pl 18 57 01.60985 +32 54 04.5723           ~ 8 1
155 HD 176051 SB* 18 57 01.60985 +32 54 04.5723 5.85 5.82   4.9   F9V+K1V 262 1
156 HD 179949b Pl 19 15 33.2300695008 -24 10 45.671448072           ~ 123 1
157 HD 179949 BY* 19 15 33.2300695008 -24 10 45.671448072   6.772 6.237     F8V 405 1
158 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 890 1
159 HD 187123c Pl 19 46 58.1122487784 +34 25 10.281404460           ~ 37 1
160 HD 187123b Pl 19 46 58.1122487784 +34 25 10.281404460           ~ 90 1
161 HD 187123 PM* 19 46 58.1122487784 +34 25 10.281404460       7.4   G2V 246 1
162 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 896 1
163 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1436 1
164 HD 190360 PM* 20 03 37.4050868074 +29 53 48.492435887   6.44   5.2   G7IV-V 444 1
165 HD 190360b Pl 20 03 37.4050868074 +29 53 48.492435887           ~ 61 1
166 HD 190360c Pl 20 03 37.4050868074 +29 53 48.492435887           ~ 54 1
167 HD 195019 PM* 20 28 18.6366815627 +18 46 10.180434472 7.730     6.5   G1V 257 1
168 HD 195019b Pl 20 28 18.6366815627 +18 46 10.180434472           ~ 69 1
169 * 18 Del b Pl 20 58 25.9335294984 +10 50 21.430869504           ~ 19 1
170 * 18 Del PM* 20 58 25.9335294984 +10 50 21.430869504   6.432 5.506     G6III 93 1
171 HD 204961b Pl 21 33 33.9751191976 -49 00 32.399427028           ~ 64 1
172 HD 204961 PM* 21 33 33.9751191976 -49 00 32.399427028 11.359 10.176 8.672 7.665 6.479 M2/3V 290 1
173 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 1859 1
174 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1115 1
175 V* AR Lac RS* 22 08 40.8182089680 +45 44 32.107863120 7.09 6.83 6.11     K0IVe+G5IV 724 0
176 V* FK Aqr SB* 22 38 45.5746238605 -20 37 16.087447076 11.714 10.595 9.083 8.073 6.876 M0Vep 280 0
177 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1013 1
178 BD-15 6290d Pl 22 53 16.7325836486 -14 15 49.304052185           ~ 157 1
179 BD-15 6290e Pl 22 53 16.7325836486 -14 15 49.304052185           ~ 50 1
180 BD-15 6290b Pl 22 53 16.7325836486 -14 15 49.304052185           ~ 253 1
181 BD-15 6290c Pl 22 53 16.7325836486 -14 15 49.304052185           ~ 195 1
182 * tau01 Gru b Pl 22 53 37.9323502176 -48 35 53.823928380           ~ 29 1
183 * tau01 Gru PM* 22 53 37.9323502176 -48 35 53.823928380 6.85 6.66 6.04     G0V 204 1
184 * rho Ind PM* 22 54 39.4819393536 -70 04 25.352060772 6.95 6.71 6.05     G1VFe+0.3 191 1
185 HD 216437b Pl 22 54 39.4819393536 -70 04 25.352060772           ~ 42 1
186 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1159 1
187 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 666 1
188 HD 217107c Pl 22 58 15.5408995872 -02 23 43.383234768           ~ 62 1
189 HD 217107 ** 22 58 15.5408995872 -02 23 43.383234768   6.919 6.163     G8IV/V 368 1
190 HD 217107b Pl 22 58 15.5408995872 -02 23 43.383234768           ~ 95 1
191 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1139 0
192 HD 218566 PM* 23 09 10.7269903047 -02 15 38.682667763   9.641 9.208 9.105 8.73 K3V 106 1
193 HD 218566b Pl 23 09 10.7269903047 -02 15 38.682667763           ~ 14 1
194 * gam Cep b Pl 23 39 20.9104133784 +77 37 56.510781384           ~ 83 1
195 * gam Cep SB* 23 39 20.9104133784 +77 37 56.510781384 5.190 4.250   2.6   K1III-IVCN1 598 1
196 HD 224085 RS* 23 55 04.0520383542 +28 38 01.245426862 8.88 8.20   6.9   K2+IVeFe-1 729 0

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