SN 2017ixh
RA/DEC (2000)
06:44:26.550 -63:42:41.94
101.110625 -63.71165
Reporting Group
Discovering Data Source
Discovery Date
2017-12-15 13:04:58.000
Host Name
Discovery Mag
Pat Pearl


 SN_2017ixh - 2017-12-17 07:55:12 LCO-duPont / WFCCD (None)z=
 SN_2017ixh - 2017-12-16 03:43:53 ESO-NTT / EFOSC2-NTT (ePESSTO)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show O at z=vexp= km/s
Show [O I] at z=vexp= km/s
Show O II at z=vexp= km/s
Show [O II] at z=vexp= km/s
Show [O III] at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg II at z=vexp= km/s
Show Si II at z=vexp= km/s
Show S II at z=vexp= km/s
Show Ca II at z=vexp= km/s
Show [Ca II] at z=vexp= km/s
Show Fe II at z=vexp= km/s
Show Fe III at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
15802017-12-17 07:55:12LCO-duPont / WFCCD1200N. MorrellN. MorrellNone tns_2017ixh_2017-12-17.33_LCO-duPont_WFCCD.txt tns_2017ixh_2017-12-17.33_LCO-duPont_WFCCD.fitsObject
15392017-12-16 03:43:53ESO-NTT / EFOSC2-NTT600M.Smith, C.R.AngusM.Smith, C.R.AngusePESSTO tns_2017ixh_2017-12-16_03-43-53_ESO-NTT_EFOSC2-NTT_ePESSTO.asci tns_2017ixh_2017-12-16_03-43-53_ESO-NTT_EFOSC2-NTT_ePESSTO.fitsObjectePESSTO
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2014-05-26 08:00:40 - 2017-12-15 13:04:582
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
231742017-12-15 13:04:5817VegaMagClear-Other_Other30Pat PearlImage at Leyburn - Meade RC 250mm F5.3
231732014-05-26 08:00:4017VegaMagClear-Other_Other30Pat Pearl[Last non detection]
G-GaiaGaia_Gaia-photometric2017-11-08 19:12:00 - 2017-12-12 16:49:262
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
232722017-12-12 16:49:2618.120.2ABMagG-GaiaGaia_Gaia-photometric60Robot
232712017-11-08 19:12:0021.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
153802017-12-18 23:24:20Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlertsGaiaAlerts06:44:26.550-63:42:41.942017-12-12 16:49:26.00018.12G-GaiaPSNGaia17dgzGaiaAlertscandidate SN near galaxy NGC 2297
153352017-12-15 14:10:36Greg BockPat PearlBOSSBOSS06:44:26.501-63:42:40.002017-12-15 13:04:58.00017Clear-PSNBOSSImage at Leyburn - Meade RC 250mm F5.3
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
15762017-12-27 17:51:07nidiaNidia MorrellNoneSN Ic0.011Cross correlation with a library of supernova spectra via the Supernova Identification tool (SNID, Blondin and Tonry, 2007, ApJ 666, 1024) yields good matches with many type Ic supernovae between zero and ten days from maximum light, being the most similar SN1997ei at 11 days past maximum. Strong nebular emission at the redshift of the host is superimposed on the supernova spectrum. Note that a previous spectroscopic report as 'Galaxy' (ATel #11069) given to this transient was most probably due to a mistake in the coordinates originally uploaded to the TNS.2017TNSCR1560....1M
15352017-12-17 10:30:57ePESSTO_Bot1M.Smith, C.R.Angus, O. Yaron, N. Knezevic on behalf of ePESSTOePESSTOOther0.011ePESSTOThe obtained spectrum was of the host, not the transient's true coordinates, so the type is not clear yet, just the host redshift.2017TNSCR1427....1S


Object coordinates updated according to AT-report 15380 of Group GaiaAlerts
Previous RA, DEC: 06:44:26.501, -63:42:40.00 (101.11042, -63.71111)
Updated RA, DEC: 06:44:26.550, -63:42:41.94 (101.110625, -63.71165)

According to the discoverer's request, coordinates were corrected from 06:44:24.50, -63:43:03.00 to 06:44:26.5, -63:42:40.00.

(The original coordinates were of the host, not the transient's location.)

Three 30 second images for confirmation taken by Peter Marples, BOSS, at Leyburn Observatory. No variable star sources known (VSX, GCVS), no known minor planets at that position.