AT 2023cqt
RA/DEC (2000)
12:56:47.063 +21:39:45.84
194.196094 +21.662732
Type
Nova
Redshift
0.001
Related AstroNotes: 2023-53
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-03-01 00:02:19.968
TNS AT
Y
Public
Y
Discovery Mag
18.803
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), K. W. Smith, S. Srivastav, D. R. Young, S. J. Smartt, J. Gillanders, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), M. Nicholl (Birmingham), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

Spectra

 AT_2023cqt - 2023-03-02 17:49:36 Lijiang-2.4m / YFOSC (LiONS)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He II at z=vexp= km/s
Show C II at z=vexp= km/s
Show C III at z=vexp= km/s
Show C IV at z=vexp= km/s
Show N II at z=vexp= km/s
Show N III at z=vexp= km/s
Show N IV at z=vexp= km/s
Show N V 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 O V at z=vexp= km/s
Show O VI 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 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)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
145712023-03-02 17:49:36Lijiang-2.4m / YFOSC2400Jujia ZhangLiONS tns_2023cqt_2023-03-02_17-49-35.952_Lijiang-2.4m_YFOSC_LiONS.datObjectLiONS
Light Curves
FilterTel / InstObs-date rangePhotometry
cyan-ATLASATLAS-HKO_ATLAS-022023-02-26 14:03:50 - 2023-02-26 14:03:501
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
3308942023-02-26 14:03:5019.42ABMagcyan-ATLASATLAS-HKO_ATLAS-0230Robot[Last non detection]
g-SloanLCO1m_Sinistro2023-03-01 23:38:38 - 2023-03-01 23:38:381
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
3309122023-03-01 23:38:3818.750.09ABMagg-SloanLCO1m_Sinistro180LCOGTbot
r-SloanLCO1m_Sinistro2023-03-01 23:42:09 - 2023-03-01 23:42:091
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
3309132023-03-01 23:42:0919.140.1ABMagr-SloanLCO1m_Sinistro180LCOGTbot
orange-ATLASATLAS-STH_ATLAS-032023-03-01 00:02:20 - 2023-03-01 00:02:201
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
3308952023-03-01 00:02:2018.8030.18819.27ABMagorange-ATLASATLAS-STH_ATLAS-0330Robot
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
1717602023-03-02 00:37:52ipf I. Perez-Fournon and F. Poidevin (IAC and ULL)SGLFSGLF12:56:47.063+21:39:45.502023-03-01 23:38:38.00018.75g-SloanPSNSGLFLCOGT follow-up imaging of the transient ATLAS23ddk (AT2023cqt) in galaxy Messier 064.
1717512023-03-01 20:14:40ATLAS_Bot1J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), K. W. Smith, S. Srivastav, D. R. Young, S. J. Smartt, J. Gillanders, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), M. Nicholl (Birmingham), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)ATLASATLAS12:56:47.063+21:39:45.842023-03-01 00:02:19.96818.803orange-ATLASPSNATLAS23ddkATLAS
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
144972023-03-03 03:30:32ApingLiping Li (Yunnan University); Yongzhi Cai, Han Lin, Qian Zhai, Jujia Zhang (YNAO); Andrea Reguitti (INAF-OAPd;UAB;MAS); Andrea Pastorello (INAF-OAPd);Xiaofeng Wang(THU).LiONSNova0.001LiONSIn the framework of the Lijiang One Hour Per Night for Supernova Project (LiONS) , we observed a spectrum on 2023-03-02 17:49:35.952(UT) for AT2023cqt via 2.4m Lijiang Telescope equipped with YFOSC . This spectrum shows a blue, featureless continuum. Together with the flat photometric information from ATLAS, we intend to classify it as a Nova.2023TNSCR.473....1L

Comments

This PSN was not visible on the 360s CCD image made by the 0.61m Planewace CD24 telescope of Robotic Burke-Gaffney Observatory using LUM filter on Feb. 28.1865UT 2023. Limiting magnitude was 19.1G.



Robert Fidrich (HAA/VSS, Hungary) and Martin Obbo (Saint Mary's University, Halifax, Canada)