Re: A New List of 10

[Patrick Wils <patrickwils@yahoo.com>]

I plotted light curves from the TASS database and ASAS3, for Tom's list
of stars (some of these stars are recent additions to the GCVS,
probably not yet in VizieR):

> 07 52 05.9 -03 45 16  39.55   LPV?
Looks constant in ASAS3, but TASS observed a dip at a time there were
no observations from ASAS3.

> 07 52 52.7 +13 22 56 250.71   LPV?
V353 Gem, LB according to GCVS, but looking at the lightcurve (combined
with ASAS3) and amplitude (>1mag), this is more likely an SR variable.

> 07 54 07.0 +03 39 20 303.86   SPV?
XZ CMi (EA)

> 07 57 43.3 -00 41 05 1500.81  GCCS 1960
V831 Mon (a Mira)

> 07 59 50.1 -03 28 36 1611.71   SPV CMC 1007680
BO Mon (EA)

> 08 04 25.5 +04 27 51 188.45   IRAS LPV?
SR, full amplitude 1 mag, period 50 days ?

> 08 04 30.6 -03 07 49 290.33   LPV?
V833 Mon (a Mira)

> 08 06 21.6 +03 23 02 196.33   IRAS LPV?
CS CMi (SR)

> 08 06 38.5 +01 55 46 489.50  YY Cmi EB
YY CMi, indeed.

> 08 08 49.5 -04 10 22 264.72   IRAS LPV???
SR Amplitude > 1 mag, period 70 days ?, according to ASAS3 data (which
are available over a longer timespan than TASS's), the amplitude seems
to vary with a long wave.


> The JO71829.3 star is put up for someone to explain.  I think the
> possible
> errors are such that we I cannot explain the data by the error.  

This star is constant in ASAS3.  Tom's plot does not show all data that
are in the MkIV database for this star (see below).  There are a couple
of "normal" points during the fading episode in V, which have not been
plotted.

Patrick

316967 29 109.6183 -0.6795 2452605.88635 V 14.057 0.112 0 I 12.834
0.026 0
316967 29 109.6178 -0.6781 2452605.88900 V 13.266 0.061 0 I 12.847
0.027 0
316967 29 109.6196 -0.6766 2452605.89594 V 13.055 0.047 0 I 12.827
0.028 0
316967 29 109.6189 -0.6797 2452605.89859 V 13.279 0.059 0 I 13.007
0.031 0
316967 29 109.6175 -0.6787 2452605.89991 V 13.088 0.049 0 I 12.922
0.028 0
316967 29 109.6187 -0.6781 2452605.90949 V 13.236 0.059 0 I 13.332
0.045 0
316967 29 109.6182 -0.6761 2452605.91777 V 13.399 0.059 0 I 13.070
0.034 0
316967 29 109.6204 -0.6772 2452605.92469 V 14.101 0.113 0 I 13.084
0.033 0
316967 29 109.6192 -0.6798 2452605.92735 V 13.063 0.047 0 I 12.835
0.026 0
316967 29 109.6178 -0.6782 2452614.85243 V 13.153 0.033 0 I 12.857
0.017 0
316967 29 109.6179 -0.6784 2452616.84703 V 13.054 0.029 0 I 12.861
0.017 0
316967 29 109.6179 -0.6794 2452619.83918 V 13.020 0.027 0 I 13.055
0.020 0
316967 29 109.6166 -0.6787 2452643.77440 V 13.316 0.039 0 I 13.003
0.021 0
316967 29 109.6189 -0.6780 2452648.76078 V 13.278 0.037 0 I 13.172
0.024 0
316967 29 109.6180 -0.6779 2452650.76155 V 13.025 0.044 0 I 12.956
0.030 0
316967 29 109.6179 -0.6785 2452650.77794 V 13.192 0.052 0 I 13.077
0.036 0
316967 29 109.6188 -0.6773 2452651.75258 V 13.093 0.030 0 I 12.956
0.021 0
316967 29 109.6186 -0.6783 2452663.71981 V 13.140 0.032 0 I 12.874
0.020 0
316967 29 109.6189 -0.6783 2452666.71162 V 13.487 0.053 0 I 12.983
0.021 0
316967 29 109.6179 -0.6777 2452678.67918 V 13.479 0.045 0 I 13.080
0.024 0
316967 29 109.6181 -0.6786 2452679.67612 V 13.388 0.046 0 I 13.092
0.025 0
316967 29 109.6185 -0.6786 2452683.66521 V 14.147 0.080 0 I 13.057
0.023 0
316967 29 109.6174 -0.6789 2452690.64609 V 13.330 0.042 0 I 12.963
0.022 0
316967 29 109.6180 -0.6786 2452695.63247 V 14.206 0.101 0 I 13.070
0.025 0
316967 29 109.6194 -0.6774 2452697.62700 V 13.127 0.045 0 I 12.831
0.023 0
316967 29 109.6195 -0.6773 2452701.61622 V 13.344 0.048 0 I 12.909
0.021 0
316967 29 109.6180 -0.6782 2452705.60522 V 14.619 0.162 0 I 13.205
0.032 0
316967 29 109.6188 -0.6779 2452708.59696 V 13.383 0.052 0 I 13.031
0.024 0
316967 29 109.6185 -0.6783 2452709.59421 V 13.202 0.045 0 I 13.103
0.028 0


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