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.

The variable star in Lynga 7 is also listed in the Moscow General 
Catalogue of Variable Stars (GCVS). A table listing their GCVS 
names was published in a paper by Samus et al.  (2021). 
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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

Samus, N. N., Pastukhova, E.N., Durlevich, O. V., Kazarovets, E. V.,
Kireeva, N. N. 2021, Per. Zvez., 41, No. 7

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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