COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 588 Konkoly Observatory Budapest 1971 October 20 HD 184077: ANOTHER RED VARIABLE During the course of photoelectric photometry of AQ Sgr, it was discovered that HD 184077 (RA1970=19h31m40s, D=1970-16d41'), used as comparison star, was variable. The light- and colour-curves have been constructed, using HD 184201 (RA1970=19h31m40s, D1970=+4d58') as comparison star, of which preliminary magnitude and colours are V=6.32m, B-V=1.91m, U-B=2.03m. The range of the light variation is 0.30m (s. Figure). ----------------------------------------------------------------- JD JD DeltaV Delta(B-V) DeltaV Delta(B-V) 2441... 2441... ----------------------------------------------------------------- 115.502 1.208 -0.248 172.327 1.013 -0.228 118.464 1.216 -0.231 178.392 1.083 -0.246 122.523 1.192 -0.239 180.303 1.071 -0.235 127.440 1.110 -0.222 181.297 1.090 -0.248 131.466 1.042 -0.211 183.294 1.090 -0.248 136.442 0.993 -0.198 185.292 1.145 -0.246 143.419 1.043 -0.222 192.311 1.093 -0.246 146.453 1.054 -0.213 193.298 1.095 -0.246 148.455 1.022 -0.220 194.348 1.068 -0.252 150.457 1.024 -0.215 195.250 1.096 -0.257 151.366 1.005 -0.218 209.316 1.084 -0.237 154.416 0.954 -0.211 210.256 1.075 -0.220 156.418 0.920 -0.196 211.261 1.053 -0.226 161.335 0.929 -0.231 216.308 1.023 -0.224 167.337 1.021 -0.226 217.243 1.003 -0.204 169.324 1.028 -0.228 222.248 1.058 -0.226 ---------------------------------------------------------------- M. WISSE Republic Observatory Johannesburg [FIGURE 1]