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An IBVS flyer by van den Bergh & Younger contains a UBV sequence for the
little-observed delta Cepheid V567 Sco, which lies in the field of Trumpler 24.
The list is shown below derived from comparison with the chart in the paper.
The comparison stars were observed only once, except for star 10, for which
n=4. The list is sorted in order of decreasing brightness. The brightest star
turns out to be the beta Lyr-type eclipser V565 Sco.
A precise position for the Cepheid and rounded values for the photometry
are shown in the first line. The variable is obviously strongly reddened.
\Brian
source: 1979IBVS.1668....1V
http://www.konkoly.hu/cgi-bin/IBVS?1668
coordinates from: M = 2MASS, U = UCAC1
ID RA (J2000) Dec s GSC V B-V U-B remarks
V567 16 49 50.73 -40 55 06.5 M 13. 2.1 2.1
1 16 49 32.52 -40 55 55.7 U 7871-3291 10.42 0.14 -0.56 V565 Sco (B3)
2 16 49 42.33 -40 55 29.7 U 7871-3293 11.36 0.41 0.25 HD 322139 (A3)
3 16 49 41.86 -40 56 03.8 U 7871-3747 12.10 0.41 0.30
4 16 49 46.21 -40 56 28.9 U 7871-3503 12.17 0.98 0.62
10 16 49 48.74 -40 56 17.6 U 7871-3389 12.17 0.99 0.61 n=4
6 16 49 45.02 -40 57 54.8 U 7871-3437 12.34 0.28 -0.05 CD-40 10772
8 16 49 47.18 -40 58 14.8 U 7871-3775 12.72 1.29 1.06
13 16 49 50.35 -40 55 13.8 M 7871-3383 13.01 1.59 1.80
7 16 49 44.67 -40 58 06.1 U 7871-3515 13.38 0.48 0.37
12 16 49 53.24 -40 54 48.5 M 13.58 0.57 0.33
11 16 49 53.85 -40 54 49.2 M 7871-3419 13.90 0.52 0.41
5 16 49 49.37 -40 56 53.4 U 14.56 0.51 0.44
9 16 49 47.81 -40 57 47.0 U 14.84 0.75 0.21
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