Terzan 8 / C1938-341
RA: 19:41:44.41  DEC: -33:59:58.1 (J2000)

(Most recent updates: 
Membership probability flag - 2024; Remaining data - August 2014)
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Bytes  Format      Explanation
1-8      A8        Star ID
10-32  A11,1x,A11  Position
34-35    A2        Membership probability flag based on data published
                   by Prudil & Arellano Ferro (2024)
                    m1: prob >=0.85;  m2: prob >=0.7 and <0.85;
                    m3: prob >= 0.5 and <0.7; f: prob <0.5
                    u:  no data available
37-44   F8.4       Period  (days)
46-51   F6.3       Mean magnitude (or maximum magnitude if "max" 
                      is indicated in the remarks column)
53-57   F5.3       Light amplitude (range of variability)
59      A1         Colour for mean magnitude and amplitude
                    e.g.  B, V, R, I, J, K
                    or P (for photographic).
61-65   A5         Type of variable (draft 2006 GCVS classifications)
                      CST denotes non variable stars previously designated
                      as variables
67-80   A19        Notes and Remarks  (f denotes field star)
 
 "--" or "----" indicates no data available
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ID       Position               Mem   Period <mag>  ampl  C Type  Notes/
         RA          Dec        Flag                              Remarks
=========================================================================
1        19:41:55.13 -34 00 14.2 m1   0.6860 --     --      RR0   
2        19:41:37.18 -34 03 17.6 m1   0.3920 --     --      RR1   
3        19:41:31.96 -34 03 28.8 f    0.6010 --     --      RR0   
4        19:41:52.52 -33 59 16.8 m1   0.0616 --     --      SXPHE 
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Supplementary Notes 

The periods and classifications are from Salinas et al. (2005).
The RA and dec were derived from the study by Salinas et al. (2012)
and were provided by Salinas (2013, private communication).
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Discovery of the variable stars in Terzan 8:

V1-2 = Montegriffo's #1350 and #117 
    Montegriffo et al. (1998) announced 5 candidate variables: 117, 688,
    1350, 1582 and 2784.  They labelled them on an ID chart and published 
    pixel positions (X,Y).
    Salinas et al. (2005) confirmed the variablility of #1350 and #117
    and assigned the numbers V1 and 2. They also published x,y 
    coordinates and a finding chart. However, the x,y coordinates they 
    listed for V1 and V2 do not match the postions labelled on their 
    chart. They are reversed. The numbering system used in ths catalogue 
    corresponds to the positions on their chart.

    Montegriffo's candidate variable #2784 appears to be just outside
    the field of the finding chart of Salinas et al. Therefore it should
    still be considered a candidate variable. The other two candidates 
    (#688 and #1582) are considered to be non-variable because Salinas
    et al. (2005) did not detect any variability.

V3-4
    Salinas et al. (2005) with x,y, coordinates and an ID chart
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References

Montegriffo, P., Bellazzini, M., Ferraro, F. R., Martins, D.,
Sarajedini, A., Fusi Pecci, F.  1998, MNRAS, 294, 315 

Prudil Z., Arellano Ferro, A. 2024, MNRAS, 534, 3654

Salinas, R., Catelan, M., Smith, H. A., Pritzl, B. J., Borissova, J.
2005, IBVS, 5640

Salinas, R., Jilkova, L., Carraro, G., Catelan, M., Amiga, P. 
2012, MNRAS, 421, 960
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