Mi Zhang and Xing Gao, report the discovery of a possible nova (mag approximately 17.6) on several 300-s survey image (limiting mag about 20.5) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct. 07.65027 UTC using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=00h42m49.60s +41d16’52”.3 (equinox 2000.0). Which is about 59.5″ east and 43.8″ north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Oct. 05.57522 (limiting mag 20.5) . Images can be found at: http://xjltp.china-vo.org/xm37mz.html
 |
 |
 |
| Discovery image taken by N88 on Oct. 07.65027 UTC,2020 | Archival image taken by N88 on Oct. 05.57522 UTC,2020 | PS image |
 |
 |
| AT 2020vak (= XM37MZ) (= PNV J00424960+4116523) | |||
| JDHEL Gmag. 2459130.155 17.55 2459130.159 17.56 2459131.213 17.56 2459131.216 17.53 2459133.245 17.15 2459133.249 17.09 2459137.482 17.27 2459138.231 17.20 2459138.235 17.19 2459138.274 17.15 2459138.278 17.22 2459139.151 15.82 2459139.155 15.82 2459139.188 15.82 2459139.192 15.83 2459142.383 15.08 2459142.387 15.09 2459143.131 15.45 2459143.134 15.47 2459144.057 15.74 2459144.06 15.73 2459145.055 15.87 2459145.059 15.87 2459146.195 15.89 2459146.206 15.88 2459148.111 16.10 2459148.115 16.12 2459149.081 16.16 2459149.085 16.16 2459150.119 16.35 2459150.122 16.36 2459151.144 16.60 2459151.148 16.56 2459153.054 16.62 2459153.058 16.65 2459154.031 16.82 2459154.035 16.83 2459155.082 17.13 2459155.085 17.11 2459156.064 17.27 2459156.067 17.30 2459157.082 17.41 2459157.086 17.47 2459160.035 17.95 2459160.039 17.97 2459160.403 17.80 2459161.022 18.14 2459161.025 18.12 2459161.333 18.00 2459161.337 18.02 |
JDHEL Vmag. 2459139.374 15.83 2459139.377 15.82 2459140.244 15.91 2459140.248 15.91 2459141.302 14.25 2459141.306 14.18 2459142.406 15.13 2459142.41 15.13 2459143.107 15.53 2459143.111 15.54 2459144.086 15.78 2459144.09 15.82 2459144.094 15.80 2459144.098 15.82 2459144.102 15.80 2459144.107 15.83 2459144.111 15.77 2459144.115 15.83 2459144.119 15.77 2459144.123 15.83 2459144.127 15.85 2459144.131 15.80 2459144.135 15.79 2459144.139 15.82 2459144.143 15.75 2459144.165 15.82 2459144.169 15.87 2459144.173 15.80 2459144.177 15.80 2459144.181 15.79 2459144.186 15.80 2459144.19 15.81 2459144.194 15.82 2459144.198 15.76 2459144.202 15.87 2459145.085 16.00 2459145.086 15.97 2459145.087 15.97 2459145.157 16.03 2459145.161 16.00 2459145.166 16.01 2459145.17 15.95 2459145.174 15.99 2459145.178 15.98 2459145.182 15.99 2459145.186 15.97 2459145.19 16.01 2459145.194 15.99 2459145.198 15.97 2459145.208 16.00 2459145.212 16.01 2459145.216 15.92 2459145.22 15.95 2459145.224 15.99 2459145.228 16.00 2459145.232 16.05 2459145.236 15.96 2459145.241 16.02 2459145.245 15.98 2459145.249 15.99 2459145.253 15.95 2459145.257 16.00 2459145.261 15.96 2459145.265 15.99 2459145.269 16.04 2459145.273 15.98 2459145.277 15.96 2459145.282 16.02 2459145.286 15.97 2459145.29 16.01 2459145.294 16.00 2459145.298 15.93 2459145.302 15.99 2459145.306 15.98 2459145.31 16.02 2459145.314 16.02 2459145.318 15.99 2459145.323 16.04 2459145.327 16.01 2459145.331 15.98 2459145.335 15.96 2459145.339 16.00 2459145.343 15.98 2459145.347 15.97 2459145.351 15.99 2459145.355 15.93 2459145.359 15.95 2459145.363 16.02 2459145.367 16.00 2459145.371 15.97 2459145.375 15.95 2459145.379 15.98 2459145.383 16.00 2459145.387 15.99 2459145.391 15.97 2459145.395 16.05 2459145.399 15.98 2459145.403 15.97 2459145.407 15.97 2459145.411 16.02 2459145.415 15.97 2459145.419 15.99 2459145.423 16.00 2459145.427 16.03 2459145.431 16.01 2459145.435 15.95 2459145.439 15.97 2459145.443 16.00 2459145.447 15.96 2459148.168 16.26 2459148.176 16.20 2459150.319 16.60 2459150.324 16.60 2459150.328 16.60 2459151.17 16.77 2459151.174 16.78 2459151.178 16.79 2459153.08 16.85 2459153.084 16.83 2459153.088 16.87 2459153.361 16.94 2459153.365 17.11 2459153.369 16.86 2459153.373 17.08 2459153.377 16.84 2459153.381 17.04 2459153.385 16.95 2459153.389 16.93 2459153.393 17.00 2459153.397 16.86 2459153.401 16.93 2459153.405 16.85 2459153.409 17.06 2459153.413 16.96 2459153.417 17.05 2459153.425 16.95 2459153.429 16.95 2459153.441 16.88 2459154.138 17.23 2459154.142 17.09 2459155.154 17.27 2459155.158 17.41 2459156.09 17.78 2459156.094 17.38 2459156.102 17.56 2459157.117 17.65 2459159.126 18.09 2459159.13 18.18 |
JDHEL Rmag. 2459139.381 15.63 2459139.385 15.63 2459140.252 15.71 2459140.255 15.73 2459141.31 14.12 2459141.313 14.10 2459142.414 14.85 2459142.417 14.86 2459143.115 15.25 2459143.119 15.26 2459144.087 15.55 2459144.092 15.52 2459144.096 15.54 2459144.1 15.53 2459144.104 15.58 2459144.108 15.53 2459144.112 15.53 2459144.116 15.57 2459144.12 15.57 2459144.124 15.57 2459144.128 15.58 2459144.132 15.54 2459144.137 15.54 2459144.141 15.54 2459144.162 15.56 2459144.166 15.55 2459144.171 15.58 2459144.175 15.60 2459144.179 15.56 2459144.183 15.56 2459144.187 15.56 2459144.191 15.58 2459144.195 15.57 2459144.199 15.54 2459144.203 15.59 2459145.089 15.76 2459145.09 15.73 2459145.091 15.76 2459145.159 15.75 2459145.163 15.75 2459145.167 15.75 2459145.171 15.75 2459145.175 15.75 2459145.179 15.76 2459145.183 15.76 2459145.188 15.76 2459145.192 15.74 2459145.196 15.75 2459145.2 15.74 2459145.209 15.77 2459145.213 15.79 2459145.217 15.75 2459145.222 15.74 2459145.226 15.75 2459145.23 15.72 2459145.234 15.75 2459145.238 15.76 2459145.242 15.76 2459145.246 15.73 2459145.25 15.70 2459145.254 15.76 2459145.258 15.74 2459145.262 15.75 2459145.266 15.77 2459145.271 15.71 2459145.275 15.75 2459145.279 15.74 2459145.283 15.73 2459145.287 15.76 2459145.291 15.74 2459145.295 15.76 2459145.299 15.74 2459145.303 15.79 2459145.308 15.78 2459145.312 15.76 2459145.316 15.77 2459145.32 15.75 2459145.324 15.76 2459145.328 15.75 2459145.332 15.79 2459145.336 15.72 2459145.34 15.74 2459145.344 15.73 2459145.348 15.74 2459145.352 15.75 2459145.356 15.73 2459145.36 15.73 2459145.364 15.73 2459145.368 15.75 2459145.372 15.73 2459145.376 15.78 2459145.38 15.74 2459145.384 15.77 2459145.388 15.75 2459145.393 15.79 2459145.397 15.76 2459145.401 15.81 2459145.405 15.76 2459145.409 15.73 2459145.413 15.78 2459145.417 15.76 2459145.421 15.78 2459145.425 15.74 2459145.429 15.73 2459145.433 15.75 2459145.437 15.77 2459145.441 15.72 2459145.445 15.76 2459148.169 16.06 2459148.174 16.12 2459148.178 16.01 2459150.321 16.27 2459150.325 16.29 2459150.329 16.29 2459151.171 16.40 2459151.175 16.40 2459151.179 16.42 2459153.081 16.46 2459153.085 16.53 2459153.089 16.46 2459153.333 16.53 2459153.337 16.60 2459153.341 16.53 2459153.346 16.56 2459153.35 16.60 2459153.354 16.53 2459153.358 16.48 2459153.362 16.54 2459153.366 16.53 2459153.37 16.54 2459153.374 16.50 2459153.378 16.58 2459153.382 16.59 2459153.386 16.52 2459153.39 16.53 2459153.394 16.57 2459153.398 16.51 2459153.402 16.54 2459153.406 16.59 2459153.41 16.54 2459153.414 16.57 2459153.418 16.56 2459153.423 16.42 2459153.427 16.59 2459153.431 16.62 2459153.435 16.58 2459153.439 16.48 2459153.443 16.58 2459153.447 16.60 2459153.451 16.61 2459153.483 16.31 2459154.139 16.78 2459154.144 16.79 2459155.155 16.83 2459155.159 16.91 2459156.087 17.02 2459156.091 17.39 2459156.095 17.07 2459156.099 17.01 2459156.103 17.13 2459157.105 17.12 2459157.11 17.04 2459157.114 16.99 2459157.118 17.08 2459157.122 17.15 2459157.126 17.08 2459159.127 17.46 |
JDHEL Imag. 2459139.389 15.45 2459139.392 15.43 2459140.259 15.56 2459140.263 15.57 2459141.317 14.07 2459141.321 14.06 2459142.421 14.63 2459142.425 14.65 2459143.123 14.97 2459143.127 14.92 2459144.089 15.24 2459144.093 15.23 2459144.097 15.23 2459144.101 15.20 2459144.105 15.17 2459144.109 15.18 2459144.113 15.22 2459144.117 15.19 2459144.121 15.17 2459144.126 15.24 2459144.13 15.23 2459144.134 15.22 2459144.138 15.22 2459144.142 15.19 2459144.164 15.23 2459144.168 15.20 2459144.172 15.21 2459144.176 15.21 2459144.18 15.25 2459144.184 15.25 2459144.188 15.23 2459144.192 15.20 2459144.196 15.23 2459144.2 15.11 2459145.093 15.39 2459145.094 15.43 2459145.095 15.43 2459145.16 15.41 2459145.164 15.38 2459145.168 15.40 2459145.172 15.40 2459145.176 15.40 2459145.181 15.34 2459145.185 15.38 2459145.189 15.39 2459145.193 15.43 2459145.197 15.41 2459145.201 15.42 2459145.211 15.37 2459145.215 15.37 2459145.219 15.43 2459145.223 15.36 2459145.227 15.36 2459145.231 15.39 2459145.235 15.37 2459145.239 15.37 2459145.243 15.40 2459145.247 15.43 2459145.251 15.42 2459145.255 15.38 2459145.26 15.37 2459145.264 15.45 2459145.268 15.36 2459145.272 15.40 2459145.276 15.35 2459145.28 15.40 2459145.284 15.42 2459145.288 15.42 2459145.292 15.43 2459145.297 15.38 2459145.301 15.41 2459145.305 15.37 2459145.309 15.35 2459145.313 15.38 2459145.317 15.33 2459145.321 15.41 2459145.325 15.39 2459145.329 15.41 2459145.333 15.36 2459145.338 15.41 2459145.342 15.36 2459145.346 15.44 2459145.35 15.42 2459145.354 15.39 2459145.358 15.36 2459145.362 15.35 2459145.366 15.37 2459145.37 15.38 2459145.374 15.38 2459145.378 15.40 2459145.382 15.36 2459145.386 15.41 2459145.39 15.38 2459145.394 15.42 2459145.398 15.40 2459145.402 15.39 2459145.406 15.34 2459145.41 15.44 2459145.414 15.43 2459145.418 15.39 2459145.422 15.37 2459145.426 15.39 2459145.43 15.39 2459145.434 15.41 2459145.438 15.37 2459145.442 15.34 2459145.446 15.34 2459148.175 15.68 2459148.179 15.66 2459150.322 15.92 2459150.326 15.90 2459150.33 15.96 2459151.172 16.12 2459151.176 16.08 2459151.181 16.08 2459153.082 16.20 2459153.086 16.17 2459153.09 16.22 2459153.335 16.25 2459153.339 16.47 2459153.343 16.32 2459153.347 16.34 2459153.351 16.34 2459153.355 16.32 2459153.359 16.27 2459153.363 16.33 2459153.367 16.36 2459153.372 16.27 2459153.376 16.34 2459153.38 16.31 2459153.384 16.36 2459153.388 16.27 2459153.392 16.30 2459153.396 16.33 2459153.4 16.28 2459153.404 16.29 2459153.408 16.28 2459153.412 16.17 2459153.416 16.32 2459153.42 16.20 2459153.424 16.33 2459153.428 16.29 2459153.432 16.36 2459153.436 16.44 2459153.44 16.31 2459153.444 16.32 2459153.448 16.42 2459153.468 16.24 2459154.141 16.47 2459154.145 16.56 2459155.156 16.92 2459155.16 16.62 2459156.088 16.86 2459156.096 16.93 2459156.101 16.70 2459156.105 16.76 2459157.111 16.90 2459157.119 16.79 2459157.123 17.06 2459159.128 17.49 |