2014AJ....148...64S


Query : 2014AJ....148...64S

2014AJ....148...64S - Astron. J., 148, 64 (2014/October-0)

HAZMAT. I. The evolution of Far-UV and Near-UV emission from early M stars.

SHKOLNIK E.L. and BARMAN T.S.

Abstract (from CDS):

The spectral energy distribution, variability, and evolution of the high-energy radiation from an M dwarf planet host is crucial in understanding the planet's atmospheric evolution and habitability and in interpreting the planet's spectrum. The star's extreme-UV (EUV), far-UV (FUV), and near-UV (NUV) emission can chemically modify, ionize, and erode the atmosphere over time. This makes determining the lifetime exposure of such planets to stellar UV radiation critical for both the evolution of a planet's atmosphere and our potential to characterize it. Using the early M star members of nearby young moving groups, which sample critical ages in planet formation and evolution, we measure the evolution of the GALEX NUV and FUV flux as a function of age. The median UV flux remains at a "saturated" level for a few hundred million years, analogous to that observed for X-ray emission. By the age of the Hyades Cluster (650 Myr), we measure a drop in UV flux by a factor of 2-3 followed by a steep drop from old (several Gyrs) field stars. This decline in activity beyond 300 Myr follows roughly t–1. Despite this clear evolution, there remains a wide range, of 1-2 orders of magnitude, in observed emission levels at every age. These UV data supply the much-needed constraints to M dwarf upper-atmosphere models, which will provide empirically motivated EUV predictions and more accurate age-dependent UV spectra as inputs to planetary photochemical models.

Abstract Copyright:

Journal keyword(s): astrobiology - planetary systems - stars: activity - stars: late-type - surveys - techniques: photometric

VizieR on-line data: <Available at CDS (J/AJ/148/64): table1.dat refs.dat>

Simbad objects: 215

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Number of rows : 215
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME THA As* 00 00 -62.0           ~ 424 0
2 HD 225213 Er* 00 05 24.4284351777 -37 21 26.507931505 11.074 10.022 8.562 7.589 6.432 M2V 196 0
3 ASAS J001258-7952.2 Er* 00 12 57.0487446600 -79 52 07.326959160   15.062 13.558 13.157 11.089 M2.9 16 0
4 UPM J0014-6003 Er* 00 14 47.6700729984 -60 03 47.718217584   15.60 14.08 13.69 11.23 M3.6 18 0
5 UCAC3 52-533 Er* 00 15 27.5152771560 -64 14 54.769279884   14.37 12.90 12.47 10.60 M1.8 14 0
6 2MASS J00235732-5531435 PM* 00 23 57.3345882888 -55 31 43.596848208           M4.1 9 0
7 Smethells 165 ** 00 24 08.9692009536 -62 11 04.331547384   12.71 11.335 11.076 9.49 M0Ve 62 0
8 V* CT Tuc PM* 00 25 14.6618673216 -61 30 48.252745152   13.11 11.34   9.66 M0Ve 58 0
9 UPM J0027-6157 PM* 00 27 33.3014148792 -61 57 16.924456116   16.467 14.924     M4.0 8 0
10 2MASS J00332438-5116433 * 00 33 24.3918911856 -51 16 43.375907244           M3.4 8 0
11 2MASS J00393579-3816584 Er* 00 39 35.7990078240 -38 16 58.548770976           M1.4 16 0
12 SIPS J0039-6224 PM* 00 39 40.6669034760 -62 24 12.484633032           M4.9 6 0
13 UPM J0042-5444 Er* 00 42 10.1096469336 -54 44 43.252518552   15.516 13.997     M2.9 13 0
14 Smethells 173 Er* 00 45 28.1543761104 -51 37 33.939128316   13.17 12.30 10.9 9.73 M3V 53 0
15 2MASS J00485254-6526330 * 00 48 52.5410294136 -65 26 33.077767524           M3.2 8 0
16 UCAC3 53-1665 Er* 00 49 35.6807080104 -63 47 41.637475176   14.43 12.89 12.57 10.55 M1.7 15 0
17 2MASS J00514081-5913320 PM* 00 51 40.8191192136 -59 13 32.080782396           M4.4 7 0
18 Ross 318 Er* 01 02 32.2354294685 +71 40 47.336260174   11.736   9.1   M3.0V 147 0
19 BD+61 195 PM* 01 02 38.8680626986 +62 20 42.175257431   11.439   8.7   M1.5V 225 0
20 UPM J0102-6235 PM* 01 02 43.743888 -62 35 34.50012   15.604 14.035 13.685 11.24 M2.9 12 0
21 G 132-51A PM* 01 03 42.0523525968 +40 51 15.941750544   14.66 13.10 13.01 10.5 M2.6V 19 1
22 CD-68 47 ** 01 10 22.8808981176 -67 26 41.948658967 12.515 11.368 9.824 8.73 7.353 M2.5V 83 0
23 2MASS J01160045-6747311 * 01 16 00.4598364456 -67 47 31.118778888           M4.1 4 0
24 2MASS J01211297-6117281 * 01 21 12.9698927352 -61 17 28.349163528           M4.1 6 0
25 UPM J0122-6318 Er* 01 22 45.1223038560 -63 18 44.726121684   15.610 14.073     M3.5 10 0
26 2MASS J01275875-6032243 * 01 27 58.7775861168 -60 32 24.299314656           M4.2 9 0
27 SIPS J0128-4921 PM* 01 28 30.2573008296 -49 21 09.414334944   16.80 15.21 14.77   M4.1 10 0
28 Barta 161 12 SB* 01 35 13.9246297464 -07 12 51.457318884   14.93 13.43 13.053 10.52 M4.3V 65 0
29 G 272-61B Er* 01 39 01.6377185550 -17 57 01.001240728           M6V 829 0
30 UCAC4 157-001576 Er* 01 50 56.9007100968 -58 44 03.207231240   15.082 13.542 13.228   M3.0 15 0
31 ASAS J015220-5950.4 PM* 01 52 18.2984524560 -59 50 16.769469588   14.01 12.54 12.19 10.253 M2.0Ve 30 1
32 1RXS J020013.6-084106 PM* 02 00 12.7785500088 -08 40 51.914829360   13.87 12.44 12.026 10.109 M2.5 30 0
33 2MASS J02001992-6614017 * 02 00 19.9410123312 -66 14 01.884648840           M4.0 7 0
34 [FS2003] 0075 PM* 02 04 53.1666129816 -53 46 16.353499044   16.688 15.141     K5 16 0
35 BD-18 359 SB* 02 05 04.8789108650 -17 36 52.735501484 12.86 11.705 10.189 9.141 7.851 M2.5 129 0
36 CD-30 731 PM* 02 05 48.5545037970 -30 10 35.905333500 15.096 13.857 12.167 11.047 9.685 M2.5+V 43 0
37 UCAC3 92-4597 SB* 02 07 01.7619454608 -44 06 37.989136260   14.73 13.21 12.98 10.67 M3.5 20 0
38 G 173-39 Er* 02 08 53.6246553758 +49 26 56.437533465   14.02 12.45 12.12   M4.0Ve 64 0
39 UCAC4 156-001978 Er* 02 12 58.1891095440 -58 51 18.149846112   14.410 12.925 12.552   M2.0Ve 20 0
40 UCAC4 159-002053 Er* 02 20 51.3905827560 -58 23 41.109943632   15.47 13.93 13.56   M3.5Ve 18 0
41 UCAC2 1442145 PM* 02 24 24.5366470440 -70 33 21.193808040   16.66 15.00 14.53   M3.3 9 0
42 CD-44 753 PM* 02 30 32.4244818768 -43 42 23.398083432   11.380 10.309 9.802 8.869 K5V(e) 32 0
43 2MASS J02321934-5746117 PM* 02 32 19.3427064432 -57 46 11.744151348           M4.1 8 0
44 UPM J0234-5128 PM* 02 34 18.6731355672 -51 28 46.177987476   17.07 15.40     M4.3 9 0
45 EXO 0235.2-5216 Er* 02 36 51.7013280528 -52 03 03.600913140   13.59 12.411   9.727 M2Ve 61 0
46 V* AF Hor Er* 02 41 47.3048691480 -52 59 30.641572536   13.70 12.21     M2Ve 41 0
47 SCR J0242-5359A PM* 02 42 04.0669331688 -53 59 00.029087700   16.65 15.04 14.61   M4.3 8 0
48 CD-58 553 Er* 02 42 33.0252542064 -57 39 36.830791404   12.05 11.004   9.522 K5Ve 48 0
49 V* VX Ari Er* 02 44 15.5097410539 +25 31 24.114854200 13.363 12.141 10.563 9.49 8.115 dM3 205 0
50 UCAC4 160-002542 PM* 02 47 46.3886222232 -58 04 27.370251228   14.430 13.004 12.645   M1.8 12 0
51 UCAC4 122-002454 PM* 02 50 22.2360021960 -65 45 55.287524700   16.046 14.593 14.259   M3.2 9 0
52 2MASS J02505959-3409050 PM* 02 50 59.6195523600 -34 09 05.111545248           M4 8 0
53 GSC 08057-00342 PM* 02 54 33.1653392928 -51 08 31.396648128   13.73 12.21     M1.5Ve 25 0
54 2MASS J02590284-6120000 * 02 59 02.8382270784 -61 19 59.916137592           M3.9 4 0
55 BD-17 588A Er* 03 01 51.3936681048 -16 35 36.031178525 13.444 12.191 10.529 9.364 7.887 M3.0 58 0
56 [LM84] 3-13 PM* 03 05 09.7679220821 -37 25 06.000999208   14.572 13.081 12.717 10.843 M2 18 0
57 UCAC3 86-6785 PM* 03 11 45.4432906200 -47 19 50.135074680   16.66 15.08 14.67   M3.2 10 0
58 LP 247-13 TT* 03 15 37.8502113936 +37 24 14.246652060   14.36   12.823   M2.7V 39 0
59 2MASS J03210395-6816475 * 03 21 03.95232 -68 16 47.5284           M4.0 5 0
60 LSPM J0322+2858 PM* 03 22 31.6733668848 +28 58 29.077518900   17.5   14.4   M4.0V 21 0
61 ASAS J032439-3904.3 Er* 03 24 40.5669144336 -39 04 22.748291580   15.71 14.15 13.78 11.395 M4 17 0
62 2MASS J03291649-3702502 * 03 29 16.5109927344 -37 02 50.124467148           M4.1 7 0
63 CD-44 1173 Er* 03 31 55.6413793968 -43 59 13.559704980   12.05 10.927 10.447 9.347 K6Ve 47 0
64 G 80-21 Er* 03 47 23.3412414313 -01 58 19.947831323 14.052 13.048 11.537 10.452 9.098 M3.0V 109 0
65 G 160-28 Er* 03 50 44.2893983103 -06 05 41.628583585   14.48 12.843 12.498   M3V 60 0
66 HD 25284 PM* 04 00 03.8188820448 -29 02 16.431877752   11.44 10.38     K6V 19 0
67 2MASS J04074372-6825111 * 04 07 43.7401182480 -68 25 11.202536244           M3.2 6 0
68 2MASS J04133314-5231586 * 04 13 33.1475819856 -52 31 58.692583452           M2.4 8 0
69 UCAC4 229-004305 PM* 04 13 36.0968327616 -44 13 32.460555036   16.790 15.183 14.759 12.256 M3.6 13 0
70 Cl* Melotte 25 LH 262 PM* 04 16 01.4521522896 +16 58 59.150181972   16.61 15.11 15.01   ~ 23 0
71 LP 414-148 PM* 04 16 43.296 +16 49 20.33   17.69 15.90 13.68   ~ 22 0
72 HG 7-146 PM* 04 16 54.4676366256 +16 21 24.914857824   16.02 14.45 14.45   M3.5e 31 0
73 HG 7-153 ** 04 17 47.6939851704 +13 39 42.406058844   14.01 12.54 12.17   M1.5V 45 0
74 HG 7-155 PM* 04 17 55.0072174848 +16 32 40.201623600   15.49 14.01 14.16   M2 25 0
75 HG 7-162 PM* 04 18 47.0366907024 +13 21 58.712785092   13.40 11.981 11.51   M1V~ 40 0
76 WOH S 6 Er* 04 21 39.0632365512 -72 33 56.047461192     13.422   11.094 M2.5 20 0
77 LP 358-534 PM* 04 21 55.8780110352 +23 25 05.809781028   13.44 13.496 13.111   ~ 19 0
78 HG 7-179 PM* 04 22 39.5610968520 +18 16 09.590065860   15.24 13.040 12.658   M0.5 39 0
79 HG 7-187 PM* 04 23 23.8168366368 +14 25 40.597508676   16.49 14.95 14.88   M2.5 27 0
80 HG 7-189 PM* 04 23 42.9568779816 +15 52 51.306717828   16.22 14.83 14.69   M2 30 0
81 LP 358-724 PM* 04 25 18.1842955488 +23 03 38.951167320   15.55 13.99 13.73   ~ 13 0
82 Cl* Melotte 25 LH 131 PM* 04 25 50.4447381936 +15 00 09.235760652   17.80 16.25 16.16   ~ 24 0
83 HG 8-39 Er* 04 26 04.324320 +17 07 14.57400   17.37 15.71 15.71   M5V 29 0
84 HG 7-212 PM* 04 26 04.7061979464 +15 02 28.989485232   13.71 12.24 11.85   M1V 42 0
85 HG 7-221 PM* 04 27 16.6396768704 +17 14 30.666346656   14.58 13.064 12.711   M1.5 46 0
86 HG 7-232 BY* 04 28 28.776432 +17 41 45.39120   13.58 12.12 11.88   M0.5Ve 59 0
87 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2891 0
88 HG 7-244 PM* 04 29 55.7394509088 +16 54 50.582358432   14.31 12.820 12.407   ~ 36 0
89 V* V484 Tau Er* 04 30 23.9615609304 +17 29 58.977071268   16.07 14.52 14.36   M3.5 34 0
90 HG 7-249 PM* 04 31 29.0701590432 +17 43 07.179602520   13.28 11.87 11.52   K7V 51 0
91 LP 415-187 ** 04 32 07.95 +17 39 52.3   16.82 15.25 15.02   M2 22 0
92 Cl* Melotte 25 VA 674 PM* 04 32 28.9806260592 +17 54 16.701872148   17.07 15.46 15.11   ~ 22 0
93 LP 415-1582 PM* 04 36 04.1828355312 +18 53 18.676299660   15.07 13.576 13.292   M2.5V 28 0
94 LP 415-1619 PM* 04 36 38.9458035168 +18 36 56.713956768   14.82 13.338 12.986   M2.0V 32 0
95 1RXS J043657.1-161258 Er* 04 36 57.3963396456 -16 13 06.434901480   14.546 13.126 12.813 10.337 M3.5 32 0
96 LP 415-292 PM* 04 38 54.7206035184 +19 10 55.986372984   15.55 14.04 13.70   ~ 19 0
97 HG 8-68 PM* 04 40 12.7100600088 +19 17 09.948013944   15.05 13.577 13.287   M2.43 19 0
98 HD 285968 PM* 04 42 55.7750207949 +18 57 29.395947044 12.668 11.49 9.951 8.931 7.702 M2.5V 300 2
99 2MASS J04470041-5134405 * 04 47 00.4224740880 -51 34 40.499661504           M1.9 8 0
100 LP 776-25 Er* 04 52 24.4148135160 -16 49 21.926289432   12.76 11.639 11.237 9.1 M3.3V 64 0
101 LP 476-207 ** 05 01 58.79419 +09 58 59.2855   12.93 11.53 10.33 8.708 M3.5V 110 0
102 LP 776-46 PM* 05 03 20.0844829328 -17 22 24.721336910 14.612 13.371 11.735 10.603 9.192 M3V 95 0
103 2MASS J05111098-4903597 * 05 11 10.9785767136 -49 03 59.695041924           M3.5 11 0
104 HD 33793 PM* 05 11 40.5898395497 -45 01 06.361734876 11.624 10.433 8.853 7.9 6.899 M1VIp 313 0
105 LP 717-36 ** 05 25 41.666208 -09 09 12.47904   14.17 12.57 12.26   M3.5V 40 0
106 ASAS J053925-4245.2 Er* 05 39 25.0529645736 -42 45 21.070133172     13.203   10.745 M2 18 0
107 G 192-13 PM* 06 01 11.0455145210 +59 35 49.884065409   13.31   10.7   M4.0V 80 0
108 G 222-11 PM* 06 10 19.8468098360 +82 06 24.318574744   12.214   9.5   M2.5V 107 0
109 NAME AB Dor Moving Group MGr 06 38 53.4 -42 50 04           ~ 433 0
110 CD-61 1439 PM* 06 39 50.0234724000 -61 28 41.530139940 12.224 11.043 9.746 9.11 8.223 K7V(e) 69 0
111 CD-44 3045A PM* 06 57 46.6252145047 -44 17 28.242088407   13.04 11.48     M3 8 0
112 BD+20 1790 BY* 07 23 43.5893479416 +20 24 58.650645816   11.08 10.001 9.43 8.522 K5e 85 0
113 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 378 0
114 V* YZ CMi Er* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 840 0
115 G 111-47 PM* 07 58 12.7020660564 +41 18 13.314829358   13.67 13.912 11.698   M3.5V 77 0
116 G 113-20 PM* 08 16 07.9813123847 +01 18 09.265205331 12.824 11.63 10.091 9.071 7.851 M2.0V 116 0
117 G 41-14 SB* 08 58 56.320800 +08 28 26.06808   12.62 10.98 10.56   M3.5V 90 0
118 G 48-20 PM* 09 30 44.5853914894 +00 19 21.593852255 14.533 13.298 11.710 10.583 9.127 M3.5V 83 0
119 CD-40 5404 ** 09 39 46.3687964591 -41 04 03.204421513 13.395 12.215 10.694 9.617 8.231 M3V 104 0
120 CD-45 5378 PM* 09 44 29.8367689785 -45 46 35.427639685 12.278 11.372 9.979 9.019 7.829 M1.0 79 0
121 V* AN Sex RS* 10 12 17.6682499584 -03 44 44.392042932 11.941 10.757 9.264 8.258 7.066 M2V 214 0
122 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 283 0
123 PM J10367+1521A PM* 10 36 44.8359274408 +15 21 39.864042709           M3.5 7 0
124 Ross 104 PM* 11 00 04.2570074282 +22 49 58.645009946 12.826 11.584 10.020 8.952 7.646 M4V 163 0
125 NAME TW Hya Association As* 11 01.9 -34 42           ~ 897 0
126 V* DS Leo BY* 11 02 38.3420210088 +21 58 01.700013360 12.246 11.049 9.572 8.638 7.634 M1.0Ve 202 0
127 HD 95735 Er* 11 03 20.1948195942 +35 58 11.576182057 10.030 8.960 7.520 5.99 4.79 M2+V 677 0
128 BD+44 2051 PM* 11 05 28.5769490063 +43 31 36.386948721 11.440 10.270   7.9   M1.0V 300 0
129 CD-29 8887 TT* 11 09 13.7928873024 -30 01 39.968872752   12.95 11.119 10.642 8.875 M2Ve 118 0
130 TWA 3B TT* 11 10 27.8406509184 -37 31 52.748684904   14.59 13.70   8.86 M4Ve 53 0
131 TWA 3A TT* 11 10 27.9121410480 -37 31 51.535547940   14.04 12.57   9.10 M4Ve 199 0
132 RX J1113.0+1025 PM* 11 13 00.5779578672 +10 25 05.770210476   15.7   13.3 11.4 M3.0V 16 0
133 V* SZ UMa Er* 11 20 04.8264516310 +65 50 47.349400374 13.24 12.16   8.4   M2V 167 0
134 V* V1217 Cen BY* 11 21 05.4814169256 -38 45 16.522915140   14.04 12.58 12.34 10.515 M1Ve 74 0
135 CD-34 7390A TT* 11 21 17.2193334624 -34 46 45.503251608   12.88 11.46 11.43 9.57 M1Ve 93 0
136 CD-34 7390B TT* 11 21 17.4430606440 -34 46 49.775810700   13.43 11.96 11.31 9.88 M1Ve 65 0
137 CD-33 7795 TT* 11 31 55.2608963280 -34 36 27.203892120   12.97 11.524 11.150 9.150 M2Ve 187 0
138 TWA 30B LM* 11 32 18.2189779176 -30 18 31.643286444         16.68 M4 36 0
139 CD-26 8623 TT* 11 32 41.2658824800 -26 51 55.961893800   13.69 12.23 11.14 9.637 M3Ve 98 0
140 CD-31 9113 PM* 11 35 26.9477670462 -32 32 23.884215079 12.508 11.322 9.813 8.821 7.664 M2V 142 1
141 G 254-29 PM* 11 47 41.3869161825 +78 41 28.176228837   12.741   10.0   M4.0V 159 0
142 CD-36 7429B TT* 11 48 23.7348035520 -37 28 48.520414812   15.43 14.00   11.45 M1V 73 0
143 G 10-52 PM* 11 48 35.4844541136 +07 41 40.592421924   15.30   13.31   M3.5V 36 0
144 MCC 135 LM* 11 51 07.3365505565 +35 16 19.248218463   11.30 9.802 9.420 7.64 M1.5V 165 0
145 TWA 31 PM* 12 07 10.8883274664 -32 30 53.755860744   18.5   16.4   M4.2 25 0
146 TWA 23 TT* 12 07 27.3763935312 -32 47 00.242923776   14.157 12.7     M2.5Ve 64 0
147 Ross 695 PM* 12 24 52.5030065444 -18 14 32.257135052 13.954 12.863 11.272 10.243 8.991 dM2.0 116 0
148 TWA 20 PM* 12 31 38.0691576600 -45 58 59.457923688   14.10 13.240   10.682 M3IVe 51 0
149 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 412 2
150 TWA 16 ** 12 34 56.302608 -45 38 07.63332   14.05 12.58 12.21 10.310 M2.5 53 0
151 V* V1252 Cen TT* 12 35 04.2560376888 -41 36 38.616010560   14.39 13.045   10.506 M2Ve 76 0
152 L 399-68 PM* 12 40 46.2893984278 -43 33 58.991739064 15.365 13.969 12.239 11.075 9.619 M3V 60 0
153 BD+11 2576 PM* 13 29 59.7858994351 +10 22 37.784532575 11.728 10.524 9.029 8.07 7.013 M1.0V 225 0
154 Ross 1015 PM* 13 42 43.2690775265 +33 17 24.324438875   14.38 13.896 11.672   M4V 72 0
155 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 691 0
156 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 595 2
157 G 202-45 SB* 16 24 09.3137145795 +48 21 11.107573476   12.099       M3.0V 176 1
158 G 202-48 PM* 16 25 24.6230388531 +54 18 14.765465640   11.78 10.07 9.66   M1.5V 185 0
159 G 19-7 Er* 16 57 05.7362228328 -04 20 56.318033870   13.92 12.25 10.99 9.432 dM4 90 0
160 G 203-47 SB* 17 09 31.5435804441 +43 40 52.772862930   13.46 13.671 11.511   M3.5V 85 0
161 BD+05 3409 PM* 17 30 22.7283012480 +05 32 54.665357820 11.981 10.79 9.433 8.348 7.382 M1.0V 138 0
162 CD-44 11909 PM* 17 37 03.6654566674 -44 19 09.166492972 13.791 12.593 10.946 9.729 8.145 M3.5 110 0
163 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5V 191 0
164 BD+43 2796 PM* 17 43 55.9629842863 +43 22 43.000025414   12.10 10.49 10.07   M2V 118 0
165 L 205-128 PM* 17 46 34.2330744905 -57 19 08.558449196 13.613 12.42 10.783 9.648 8.243 M3.5V 85 0
166 HD 165222 PM* 18 05 07.5787518746 -03 01 52.749184670 12.09 10.878 9.360 8.385 7.304 M0V 214 0
167 HD 173739 PM* 18 42 46.7043860406 +59 37 49.409446059   10.782   8.1   M3V 358 1
168 HD 173740 PM* 18 42 46.8946714770 +59 37 36.721161413   11.705   8.9   M3.5V 315 1
169 Ross 154 Er* 18 49 49.3637762005 -23 50 10.447375350 13.528 12.19 10.43 10.23 7.703 M3.5Ve 355 0
170 Ross 730 PM* 19 07 05.5646181264 +20 53 16.940417573 13.54 12.397 10.774 9.745 8.543 M2.0V 146 0
171 HD 349726 PM* 19 07 13.2039504383 +20 52 37.258158623 13.553 12.383 10.771 9.739 8.531 M2V 151 0
172 G 262-15 PM* 20 30 32.0453969319 +65 26 58.411357864   12.00   10.124   M3V 150 0
173 V* AT Mic A PM* 20 41 51.1280932024 -32 26 06.657282275   12.67 10.36 10.67 7.40 M4.5Ve 39 0
174 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 347 0
175 V* AT Mic B PM* 20 41 51.1602483321 -32 26 10.230816719   12.64 11.34 10.79   M4.5Ve 79 0
176 2MASS J20423672-5425263 PM* 20 42 36.7205358696 -54 25 26.253292692           M4.0 8 0
177 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1030 0
178 HD 199305 PM* 20 53 19.7889212813 +62 09 15.817261385   10.459   7.7   M1.0V 207 0
179 2MASS J21100614-5811483 PM* 21 10 06.1463057688 -58 11 48.377427360           M4.0 7 0
180 HD 201919 BY* 21 13 05.2764114744 -17 29 12.691167252   11.57 10.613   9.200 K6Ve 32 0
181 2MASS J21143354-4213528 * 21 14 33.5475301632 -42 13 52.897857456           M3.9 6 0
182 2MASS J21163528-6005124 * 21 16 35.3040485184 -60 05 12.613253172           M3.5 7 0
183 UPM J2127-6841 PM* 21 27 50.5444313952 -68 41 03.270381864   16.89 15.16 14.83 12.07 M4.2 6 0
184 Ross 775 SB* 21 29 36.8119745172 +17 38 35.865489455 13.177 11.928 10.303 9.163 7.709 M3.0V 126 0
185 HD 204961 PM* 21 33 33.9751191976 -49 00 32.399427028 11.359 10.176 8.672 7.665 6.479 M2/3V 250 1
186 2MASS J21370885-6036054 Er* 21 37 08.8430543640 -60 36 05.529260664   15.196 13.695     M3 14 0
187 Smethells 86 Er* 21 44 30.1227174024 -60 58 38.894635668 14.163 13.00 11.628 10.715 9.815 M0Ve 64 0
188 2MASS J21504048-5113380 * 21 50 40.4888403840 -51 13 38.102723868           M3.7 6 0
189 StKM 1-1950 V* 21 52 10.41792 +05 37 35.8596   13.63 12.141 11.836   M2.4V 59 0
190 BPS CS 22881-0003 PM* 22 02 16.2563541816 -42 10 33.294589572     12.139   10.058 M1 19 0
191 L 499-56 PM* 22 02 29.3842983900 -37 04 51.304725337   12.8   11.420   M3.0V 53 0
192 2MASS J22025453-6440441 Er* 22 02 54.5035261800 -64 40 44.216843916   14.133 12.683     M1.8 18 0
193 UPM J2222-6303 PM* 22 22 39.6866308728 -63 03 25.828836084   16.25 14.64 14.11 11.68 M3.5 7 0
194 Wolf 1225 ** 22 23 29.09743 +32 27 33.9152       10.26   M3.0V 103 0
195 2MASS J22244102-7724036 PM* 22 24 41.0435810256 -77 24 03.691706184           M4.2 6 0
196 V* WW PsA BY* 22 44 57.9628374984 -33 15 01.744541676 14.583 13.627 12.111 10.916 9.109 M4IVe 108 1
197 UCAC3 33-129092 Er* 22 46 34.7008784448 -73 53 50.424087408   14.90 13.42 13.09 10.96 M2.3 19 0
198 V* EV Lac Er* 22 46 49.7312610268 +44 20 02.374381562   11.85 10.26 9.89   M4.0Ve 861 2
199 L 49-19 PM* 22 55 45.5127596213 -75 27 31.203633959 13.004 11.873 10.377 9.312 7.958 M3V 66 0
200 HD 216899 PM* 22 56 34.8046530863 +16 33 12.355636588 11.323 10.143 8.638 7.657 6.542 M1.5V 266 0
201 HD 217379 ** 23 00 27.95355 -26 18 42.7951         8.86 K6.5Vke 53 0
202 MCC 858 Er* 23 06 04.8465138840 +63 55 34.356579420   12.34 10.96 10.37 9.10 M0.3V 81 0
203 1RXS J231318.1-493322 PM* 23 13 16.7064800688 -49 33 15.479769852   15.83 14.24 13.85 11.366 M3Ve 18 0
204 2MASS J23170011-7432095 * 23 17 00.1185420192 -74 32 09.438717372           M3.6 5 0
205 PM J23261-7323 Er* 23 26 10.6969614264 -73 23 49.853758488   14.08 11.877 11.492 9.951 M0Ve 44 0
206 2MASS J23273447-8512364 * 23 27 34.4798557296 -85 12 36.396904968           M3.8 5 0
207 ASAS J232857-6802.4 Er* 23 28 57.6376130976 -68 02 34.024508916   14.51 13.04 12.59 10.624 M2.5Ve 27 0
208 2MASS J23291752-6749598 * 23 29 17.5263805608 -67 50 00.087665280           M3.5 5 0
209 2MASS J23382851-6749025 * 23 38 28.5203376288 -67 49 02.564325192           M4.0 5 0
210 2MASS J23452225-7126505 PM* 23 45 22.2637033488 -71 26 50.482092408           M3.5 12 0
211 ASAS J234747-6517.4 Er* 23 47 46.9572043080 -65 17 24.783508248   13.917 12.453 12.110 10.273 M1.5 22 0
212 V* BR Psc BY* 23 49 12.5250852078 +02 24 04.405476893 11.532 10.427 8.993 8.029 6.946 dM1 309 0
213 PM J23515+3127 PM* 23 51 33.6738769584 +31 27 23.022676908     13.602 13.105   M2.0V 35 0
214 2MASS J23570417-0337559 * 23 57 04.1639712288 -03 37 56.074739304           M4 5 0
215 LP 291-34 ** 23 57 49.9053096696 +38 37 46.770184092   15.20   12.340   M2.8V 35 0

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2022.10.06-20:46:47

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