AT 2018rv
RA/DEC (2000)
10:15:39.900 +73:26:04.83
153.91625 +73.434675
Reporting Group
Discovering Data Source
Discovery Date
2018-02-11 06:25:31.000
Host Name
NGC 3147
Discovery Mag
Patrick Wiggins


 AT_2018rv - 2018-02-11 16:36:37 BAO-2.16m / Cassegrain (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
17232018-02-11 16:36:37BAO-2.16m / Cassegrain2700F. Xiao(NAOC)Han Lin(THU)None tns_2018rv_2458161.1921_BAO-2.16m_Cassegrain.txtObjectTNTSThe spectrum taken on UT Feb. 11.69 indicates that this transient has blue spectrum and has balmer series lines of hydrogen with a velocity of about 3000km/s. The spectrum is consistent with a nova or CV.
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2018-02-08 06:41:08 - 2018-02-11 06:25:312
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
253652018-02-11 06:25:3114.963ABMagClear-Other_Other5P. Wiggins35cm S/C telescope
253642018-02-08 06:41:0819ABMagClear-Other_Other5P. Wiggins[Last non detection] 35cm S/C telescope
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
168622018-02-11 07:09:38pwigginsPatrick Wiggins10:15:39.900+73:26:04.832018-02-11 06:25:31.00014.963Clear-PSNP. Wiggins, Tooele, UT, USA, reports his discovery of a possible supernova (mag about 14.96) on an unfiltered CCD frame taken 2018 Feb 11 06:25:31 UT using a 0.35-m f/5.5 reflector near Erda, UT, USA. The new object is located at R.A. 10h15m039.90s, Decl. +73°26’04.83” (equinox 2000.0), about 338” NW of the center of NGC 3147. Wiggins notes that nothing was visible at this position on an image taken on Feb 08.
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
17182018-02-12 10:09:54Danfeng XiangH. Lin, D. Xiang, L. Rui, X. Wang(THU), F. Xiao(NAOC), H. Wang(NAOC), T. Zhang(NAOC), J. Zhang(YNAO)NoneNova0TNTS2018TNSCR.204....1L


Magnitude 18.1 Feb 13 - see image

This appears to be an outburst of the cataclysmic variable CP Dra

We can confirm at ASO that there was no 14th magnitude object at that position on Feb. 09.36 UT

Object is coincident with a blue point source in PS1 imaging as well as being 0.31" from a known dwarf nova in Simbad so likely a galactic DN rather than a SN.

Discovery image