AT 2021bfs
RA/DEC (2000)
00:42:52.179 +41:16:24.52
10.7174145 +41.2734767
Type
Nova
Redshift
Reporting Group
ISSP
Discovering Data Source
ISSP
Discovery Date
2021-01-26 17:16:48.000
TNS AT
Y
Public
Y
Host Name
M31
Discovery Mag
17.6
Filter
Clear-
Reporter/s
Raffaele Belligoli

Spectra

 AT_2021bfs - 2021-02-04 09:36:00 Other / Other (None)z=
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   Binning factor: (rounded to nearest integer >1)
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Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
87892021-02-04 09:36:00Other / Other1800Taguchi,IsogaiTaguchiNone tns_2021bfs_2021-02-04.4_Other_Other.dat tns_2021bfs_2021-02-04.4_Other_Other.fitsObjectSee ATel #14370. Using a fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2021-01-24 18:54:43 - 2021-01-26 17:16:482
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1887772021-01-26 17:16:4817.60.0519STMagClear-Other_Other4800F.CastellaniNew transient was clearly detected on '2021-01-26.7209' UT using 16 x 300s frames (4800s total) obtained by a Moravian G4-9000 KAF unfiltered CCD with the 0.4m f.8 Ritchey-Chrétien telescope from Monte Baldo "A.Gelodi" Astronomic Observatory, località Novezzina, Ferrara di Monte Baldo, Verona, Italy. The discovery magnitude is 17.6±0.5 mag in the CV band (clear visual). We will continue to monitor the nova light curve and strongly encourage additional follow-up observations.
1887762021-01-24 18:54:4319STMagClear-Other_Other4800F.Castellani[Last non detection] Last non-detected image on '2021-01-24.78888' UT using 16x 300s frames (4800s total) was obtained by a Moravian G4-9000 KAF unfiltered CCD with the 0.4m f.8 Ritchey-Chrétien
orange-ATLASATLAS1_ACAM12021-01-25 05:39:50 - 2021-01-28 06:38:532
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1888362021-01-28 06:38:5316.7330.11217.46ABMagorange-ATLASATLAS1_ACAM130Robot
1888352021-01-25 05:39:5013.81ABMagorange-ATLASATLAS1_ACAM130Robot[Last non detection]
g-ZTFP48_ZTF-Cam2021-02-03 03:15:38 - 2021-02-03 03:15:381
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1893692021-02-03 03:15:3815.95980.032718520.0944ABMagg-ZTFP48_ZTF-Cam30RobotData provided by ZTF
r-ZTFP48_ZTF-Cam2021-01-18 03:48:22 - 2021-01-18 03:48:221
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1893682021-01-18 03:48:2220.6009ABMagr-ZTFP48_ZTF-Cam30Robot[Last non detection] Data provided by ZTF
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
981682021-02-03 19:46:22ALeRCEA. Munoz-Arancibia, F. Forster, F.E. Bauer, L. Hernandez-Garcia, G. Pignata, L. Galbany, E. Camacho, J. Silva-Farfan, A. Mourao, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE brokerALeRCEZTF00:42:52.179+41:16:24.522021-02-03 03:15:38.00215.9598g-ZTFPSNZTF21aagkzmcZTFNova candidate in M31 (g-rise > 0.29+-0.00 mag/day) classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF21aagkzmc
978712021-01-28 11:21:53ATLAS_Bot1J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)ATLASATLAS00:42:52.173+41:16:24.522021-01-28 06:38:52.80016.733orange-ATLASPSNATLAS21dfmATLAS
978402021-01-26 20:55:16shangri.starsRaffaele BelligoliISSPISSP00:42:52.200+41:16:24.602021-01-26 17:16:48.00017.6Clear-PNVPNV-OMB15ISSPOMB extragalactic nova monitoring with ISSP collaboration reports the discovery of a probable nova in M31 by F.Castellani, R.Belligoli and C.Marangoni. The transient designated also PNV J00425220+4116246
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2021bfs_atrep_97840_ISSP.jpgGraphicsThe new transient was clearly detected on '2021-01-26.7209' UT using 16 x 300s frames (4800s total) obtained by a Moravian G4-9000 KAF unfiltered CCD with the 0.4m f.8 Ritchey-Chrétien telescope from Monte Baldo "A.Gelodi" Astronomic Observatory, località Novezzina, Ferrara di Monte Baldo, Verona, Italy. The discovery magnitude is 17.6±0.5 mag in the CV band (clear visual). The discovery image is also available at: http://www.osservatoriomontebaldo.it/uploads/ISSP/20210126-M31-PNVJ00425220.4116246.jpg2021-01-26 20:55:16shangri.stars
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
87772021-02-05 05:31:15kentagchKenta Tagchi (Kyoto Univ), Naoto Kojiguchi (Kyoto), Keisuke Isogai (Kyoto), Claudio Balcon (ISSP)NoneNovaATel #143702021TNSCR.354....1T

Comments

Object coordinates updated according to AT-report 98168 of Group ZTF
Previous RA, DEC: 00:42:52.173, +41:16:24.52 (10.717388, +41.273478)
Updated RA, DEC: 00:42:52.179, +41:16:24.52 (10.7174145, 41.2734767)

Object coordinates updated according to AT-report 97871 of Group ATLAS
Previous RA, DEC: 00:42:52.200, +41:16:24.60 (10.7175, +41.2735)
Updated RA, DEC: 00:42:52.173, +41:16:24.52 (10.717388, 41.273478)