Here is the sequence I prepared and sent out via s.a.a. a couple of years ago that is in the region of SA 57 and the Coma galaxy cluster. The brighter naked-eye stars spread over several square degrees around the "Coma triangle" described in the first paragraph. The stars from 10th on down are in the immediate field of the Coma cluster, and in fact nearly all fit on (ahem) Luginbuhl & Skiff's chart for the cluster. Below is a photometric sequence for a region near the Coma galaxy cluster. The field is centered near 13h00m and +29deg, and includes the triangle comprising beta Comae, 30/31 Comae, and 37 Comae. In the south- central portion of this triangle is the Coma galaxy cluster (Abell 1656), where the fainter stars are located. The stars in the table are arranged in order of decreasing brightness, ranging from beta Comae at V=4.25 down to a GSC star in the cluster field at V=14.3. Positions are given to 0'.1 precision so that identification is unambiguous. The list is suitable for checking magnitude limits with the naked eye in moderately light-polluted and true-dark sites, and with binoculars and telescopes up to an aperture that will depend greatly on sky quality (about a 3-inch for a dark site, perhaps an 10-inch from a bright, urban site). From TSP in 1996, observers saw the two mag. 7.9-8.0 stars HD 113284 and 112753 on two nights. Because of the significant number of faint stars in the immediate area of the Coma galaxy cluster, these stars will be useful as comparisons should a supernova appear here. A type Ia supernova in the cluster should reach about mag. 14 or so. The magnitudes come mostly from the literature, but for several of the fainter stars I made new measurements using the Lowell 53cm telescope. Approximate colors and spectral types are indicated in parentheses. For the stars fainter than about mag. 8 or 9, both the literature data and my new measurements have uncertainties in the +/- 0.02 mag. range; some of the bright stars are high-quality photometric standards, reliable to better than 0.01, although the third decimal is omitted here. \Brian Skiff (bas@lowell.edu) Stars in the region of the Coma Galaxy Cluster Name alt name RA (2000) Dec V B-V spec Remarks HD 114710 beta Com 13 11 52 +27 52.7 4.25 0.57 G0V HD 113996 41 Com 13 07 11 +27 37.5 4.79 1.49 K5III HD 112989 37 Com 13 00 16 +30 47.1 4.90 1.16 G9III sl var HD 111812 31 Com 12 51 42 +27 32.4 4.94 0.67 G0III HD 111469 30 Com 12 49 17 +27 33.1 5.76 0.03 A2V HD 114092 13 07 54 +27 33.4 6.18 1.36 K4III HD 113865 13 06 10 +29 01.8 6.52 0.08 A3IV HD 112734 12 58 34 +28 19.2 6.95 0.23 A5 HD 112887 12 59 33 +28 03.9 7.17 0.42 F4V HD 113493 13 03 49 +31 00.1 7.35 1.06 K0III HD 113284 13 02 21 +30 21.5 7.94 0.35 F1IV HD 112753 12 58 41 +27 28.4 7.97 0.65 G1V ADS 8721 HD 112886 12 59 33 +28 14.3 8.16 0.44 F7V HD 113995 13 07 10 +28 42.8 8.40 1.37 K4III HD 113242 13 02 04 +28 59.5 8.92 0.57 F8V HD 113958 13 06 50 +28 12.4 8.99 0.53 F7V BD+29 2351 12 59 54 +28 37.9 9.35 0.83 G6III BD+29 2354 13 00 42 +28 30.6 9.83 0.58 G0V BD+29 2353 13 00 31 +28 27.5 10.36 0.53 F8 GSC 1995-1680 GSC 1995-0867 13 01 12 +28 35.2 10.82 0.77 (k0v) GSC 1995-0562 12 58 25 +27 39.5 11.31 0.19 A5 BD+28 2175 13 02 10 +27 48.8 11.33 0.57 F8 GSC 1995-2076 GSC 1995-2185 13 00 48 +27 48.1 11.65 1.14 K2III/IV GSC 1995-2050 12 59 05 +27 48.5 11.80 (0.6) (g0v) GSC 1995-2002 13 00 42 +27 50.7 11.90 0.68 (g2v) GSC 1995-1980 12 58 57 +27 51.5 11.91 (0.8) (k0v) GSC 1995-1988 13 00 10 +27 55.0 12.12 0.45 (f5v) GSC 1995-1839 12 59 29 +27 56.2 12.42 (1.2) (k2iii) GSC 1995-1926 13 00 04 +27 55.6 13.30 0.91 (k2v) GSC 1995-1585 12 59 59 +28 07.5 14.09 0.83 (k1v) Srn of two GSC 1995-2067 13 01 22 +27 50.3 14.33 1.54 (m0v) =end=