AT 2018rv
RA/DEC (2000)
10:15:39.90 +73:26:04.83
153.91625 +73.434675
Type
Nova
Redshift
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Discovery Date
2018-02-11 06:25:31
TNS AT
Y
Public
Y
Host Name
NGC 3147
Discovery Mag
14.963
Filter
Clear-
Discoverer/s
Patrick Wiggins
 2018-02-11 16:36:37 BAO-2.16m / Cassegrain
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   Binning factor: (rounded to nearest integer >1)
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Spectra
IDObs-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) 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
Photometry
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 Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
168622018-02-11 07:09:38pwigginsPatrick Wiggins10:15:39.90+73:26:04.832018-02-11 06:25:3114.963Clear-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 Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
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)NovaTNTS

Comments

Magnitude 18.1 Feb 13 - see image

This appears to be an outburst of the cataclysmic variable CP Dra http://www.aavso.org/vsx/index.php?view=detail.top&oid=13788

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