UKS 1 / C1751-241
RA: 17:54:27.2 DEC: -24:08:43  (J2000)

(Most recent updates: 
Membership probability flag - 2024; Remaining data - July 2016)
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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
=========================================================================
No known variables.
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Supplementary Notes 

UKS 1 is a faint globular cluster in the bulge.  
Origlia et al. (2005) derived [Fe/H] = -0.78  from near-infrared 
photometry and high resolution spectroscopy.
Using HST/NICMOS and NTT/SOFI infrared photometry, Ortolani et al. (2007) 
derived a distance that indicated that UKS1 is beyond the Galactic
centre.

UKS2 = BH 66 = ESO 166-SC11 (RA = 09:25.3, Dec = -54:53, J2000) was 
long thought to be a globular cluster.  However, Bica et al. (2000) 
showed that UKS 2 is an open cluster with age comparable to that of 
the Hyades.
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References

Bica, E., Ortolani, S., Barbuy, B. 2000, A&AS, 145, 399 

Origlia, L., Valenti, E., Rich, R. M., Ferraro, F. R.  2005, MNRAS, 
363, 897  

Ortolani, S., Barbuy, B., Bica, E., Zoccali, M., Renzini 2007, A&A, 470,
1043

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

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