Central Bureau for Astronomical Telegrams
CBAT "Transient Object Followup Reports"
TCP J19544251+1722281
TCP J19544251+1722281 2018 08 08.9381* 19 54 42.51 +17 22 28.1 10.7 V Sge 0 4
2018 08 08.9381
TCP J19544251+1722281 was found by Robert Fidrich, Budapest, Hungary on DSLR images made using 4x60s DSLR images made Canon EOS 1000D camera with 180mm focus telephoto lens. The star was 12.0V on 31.9451 July and 11.66V on 3,9886 Aug. and 10.7V on 08.9381 Aug. VSX lists an SR variable ASASSN-V J195442.95+172212.6 with a range between 12.16-12.84V with 418 days period. ASAS-SN data show a sudden rise from 12.35C on 05.49 August to 11.46V on 06.3317 Aug -- a strange fast brightening for an SR variable with 418 days period. Maybe a symbiotic variable in outburst? https://asas-sn.osu.edu/light_curves/cdab0df3-ce2f-4a6a-9a4e-4ae1b32f1ca2
2018 08 09.72
Two ASAS-SN Variable Stars Database light curves for ASASSN-V J195442.95+172212.6 at https://asas-sn.osu.edu/database/light_curves/55518 --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)
2018 08 9.815
CCD observations by Tamás Tordai, Budapest, Hungary using a 0.25m reflector on - 9.815 Aug: 10.85V - Aug. 9.815 UT
2018 080 11.9862
This symbiotic variable was 11.1 visual magnitude on 11.9862 Aug. Visual observation made by Robert Firdich at Tarjan, Hungary using a 8cm refractor. The "hot type" symbiotic outburst was confirmed by several spectroscopic observations. See http://www.spectro-aras.com/forum/viewtopic.php?f=39&t=2094 and ATEL #11937 --- Robert Fidrich (Budapest, Hungary)
2018 08 08.9381
Correction to the discovery informations: TCP J19544251+1722281 was found on my 4x60s DSLR images made Canon EOS 1000D camera with 180mm focus telephoto lens in Zsámbék, Hungary. The star was 12.0TG on 31.9451 July and 11.66TG on 3,9886 Aug. and 10.7TG on 08.9381 Aug. VSX listed an SR variable ASASSN-V J195442.95+172212.6 with a range between 12.16-12.84V with 418 days period. ASAS-SN data show a sudden rise from 12.025C on 05.49 August to 11.113V on 06.3317 Aug -- a strange fast brightening for an SR variable with 418 days period. So I suggested it was a symbiotic variable in outburst. --- Robert Fidrich (Budapest, Hungary)
