SN 2018hhn
RA/DEC (2000)
22:52:32.100 +11:40:26.62
343.13375 +11.674061
Reporting Group
Discovering Data Source
Discovery Date
2018-10-13 20:48:28.000
Host Name
UGC 12222
Discovery Mag
Jaroslaw Grzegorzek


 SN_2018hhn - 2018-10-14 22:32:37 LT / SPRAT (None)z=
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   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
29042018-10-14 22:32:37LT / SPRAT500S. PrenticeNone tns_2018hhn_2018-10-14_22-32-37_LT_SPRAT.txtObject
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2018-10-01 22:00:28 - 2018-10-13 20:48:282
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
375192018-10-13 20:48:2817.119VegaMagClear-Other_Other45Jaroslaw GrzegorzekInstrument: 10" f/3.3 reflector, CMOS camera
375182018-10-01 22:00:2819VegaMagClear-Other_Other45Jaroslaw Grzegorzek[Last non detection] Instrument: 10" f/3.3 reflector, CMOS camera
cyan-ATLASATLAS1_ACAM12018-10-11 09:48:57 - 2018-10-11 09:48:571
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
375332018-10-11 09:48:5718.550.12119.71ABMagcyan-ATLASATLAS1_ACAM130Robot
orange-ATLASATLAS1_ACAM12018-10-10 10:50:52 - 2018-10-10 10:50:521
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
375322018-10-10 10:50:5219.21ABMagorange-ATLASATLAS1_ACAM130Robot[Last non detection]
G-GaiaGaia_Gaia-photometric2018-10-26 16:27:50 - 2018-10-26 20:41:162
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
380522018-10-26 20:41:1616.590.2ABMagG-GaiaGaia_Gaia-photometric60Robot
380512018-10-26 16:27:5021.5ABMagG-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
237782018-10-29 11:02:46Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlertsGaiaAlerts22:52:32.100+11:40:26.622018-10-26 20:41:16.00016.59G-GaiaPSNGaia18delGaiaAlertsconfirmed SN Ia SN2018hhn first detected by J. Grzegorzek
235142018-10-14 19:43:46ATLAS_Bot1J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, K. Maguire, S. Prentice, O. McBrien, D. O'Neill, P. Clark, M. Magee, M. Fulton, A. McCormack (Queen's University Belfast), D. E. Wright (University of Minnesota)ATLASATLAS22:52:32.097+11:40:26.542018-10-11 09:48:57.00018.55cyan-ATLASPSNATLAS18wrhATLAS
235072018-10-13 21:33:03Jaroslaw GrzegorzekJaroslaw GrzegorzekPSHPSH22:52:32.060+11:40:26.702018-10-13 20:48:28.00017.1Clear-PSNPSHJaroslaw Grzegorzek, Szczecin, Poland, reports the discovery of a possible supernova (mag 17.1) on unfiltered images (limiting mag 19.0) taken by himself on 2018 10 13.867 with a 0.25-m f/3.3 reflector at his observatory (MPC:L25) in the course of the supernova search project.
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2018hhn_atrep_23507_PSH.jpgGraphics2018-10-13 22:10:38Jaroslaw Grzegorzek
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
28962018-10-15 04:46:35Simon PrenticeS. J. Prentice (QUB)NoneSN Ia0.0288Using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024), the spectrum matches type Ia SN 1994ac approximately 11 days before maximum light. 2018TNSCR1585....1P


Object coordinates updated according to AT-report 23778 of Group GaiaAlerts
Previous RA, DEC: 22:52:32.060, +11:40:26.70 (343.133583, +11.674083)
Updated RA, DEC: 22:52:32.100, +11:40:26.62 (343.13375, 11.674061)