Lynga 7 / C1607-551
RA: 16:11:03.65  DEC: -55:19:04.0 (J2000)

(Most recent updates: 
Membership probability flag - 2024; Remaining data - February 2011)
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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        16:11:02.05 -55:19:13.5 u  551.0     7.25  1.22  K M
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Supplementary Notes 

This was thought to be an open cluster until Ortolani et al. (1993)
showed it to be a thick disk globular cluster.  
A VI CM diagram by Sarajedini et al. (2007) shows a prominent HB red 
clump.

The data listed for V1 are from Sloan et al. (2010) who conclude that it
is a carbon star, but probably a cluster member.
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Discovery of the Variable Stars in Lynga 7
 
 V1 
   Sloan et al. (2010) with RA and dec.

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References

Ortolani, S., Bica, E., Barbuy, B. 1993, A&A, 273, 415

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

Sarajedini, A. et al. 2007, AJ, 133, 1658

Sloan, G. C., Matsunaga, N., Matsuura, M., Zijlstra, A. A., Kraemer, K.
E., Wood, P. R., Nieusma, J., Bernard-Salas, J., Devost, D., Houck, J. R. 
2010, ApJ, 719, 1274

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