RA/DEC (2000)
00:40:42.533 +40:59:38.86
10.1772192 +40.9941286
Type
Nova
Redshift
-0.00137
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-10-06 10:19:58.656
TNS AT
Y
Public
Y
Discovery Mag
18.179
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), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng (Queen's University Belfast), A. Aamer (QUB/Birmingham), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

Spectra

 AT_2023ufj - 2023-10-12 17:43:50 Other / Other (XOSS)z=
 AT_2023ufj - 2023-10-11 17:14:33 Other / Other (None)z=
Show H at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-HKO_ATLAS-02_orange
 Other_Other_Clear
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
15852 2023-10-12 17:43:50 Other / Other 10800 Xing Gao (Xingming Obs.) Jingyuan Zhao (Xingming Obs.) XOSS tns_2023ufj_2023-10-12_17-43-50_Other_Other_XOSS.DAT tns_2023ufj_2023-10-12_17-43-50_Other_Other_XOSS.fit Object We obtained the low-resolution spectrum using the Alpy 600 spectrograph attached to a 0.6-m f/8 Ritchey-Chretien telescope.
15849 2023-10-11 17:14:33 Other / Other 1200 Kohki Uno, Masaki Tsurumi Kenta Taguchi None tns_2023ufj_2023-10-11_17-14-33_Other_Other.dat tns_2023ufj_2023-10-11_17-14-33_Other_Other.fits Object We performed the follow-up spectroscopic observation using the KOOLS-IFU attached to the 3.8-m Seimei telescope at Okayama Observatory of Kyoto University. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8500 A.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2023-10-06 05:19:41 - 2023-10-06 05:19:41 2460223.722 - 2460223.722 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
370551 2023-10-06 05:19:41 2460223.722 18.37 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
g-ZTF P48_ZTF-Cam 2023-10-04 08:44:10 - 2023-10-22 06:18:43 2460221.864 - 2460239.763 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
370552 2023-10-22 06:18:43 2460239.763 99 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
370550 2023-10-04 08:44:10 2460221.864 20.15 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2023-10-04 12:40:39 - 2023-10-06 10:19:59 2460222.02823 - 2460223.93054 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
366825 2023-10-06 10:19:59 2460223.93054 18.179 0.076 19.36 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
366824 2023-10-04 12:40:39 2460222.02823 19.23 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
Clear- Other_Other 2016-12-21 17:49:33 - 2023-10-06 23:36:12 2457744.24274 - 2460224.48347 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
366912 2023-10-06 23:36:12 2460224.48347 17.1 19.3 VegaMag Clear- Other_Other 180 Robot MASTER-Kislovodsk
366911 2023-10-06 23:32:51 2460224.48115 17.1 19.4 VegaMag Clear- Other_Other 180 Robot MASTER-Kislovodsk
366910 2016-12-21 17:49:33 2457744.24274 21.3 VegaMag Clear- Other_Other 540 Robot [Last non detection] MASTER-Kislovodsk
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
191732 2023-10-24 21:06:04 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 00:40:42.533 +40:59:38.86 2023-10-06 05:19:40.800 18.37 r-ZTF PSN ZTF23abigaao ZTF N
189909 2023-10-07 00:23:37 MASTER Ya.Kechin, V. Lipunov, V.Kornilov et al. MASTER MASTER 00:40:42.520 +40:59:38.70 2023-10-06 23:32:51.360 17.1 Clear- PSN MASTER OT J004042.52+405938.7 MASTER Nova/Dwarf nova N
189867 2023-10-06 14:32:03 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 00:40:42.527 +40:59:38.98 2023-10-06 10:19:58.656 18.179 orange-ATLAS PSN ATLAS23tru ATLAS 2023TNSTR2500....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
15766 2023-10-13 09:01:53 Jingyuan Zhao Jingyuan Zhao, Xing Gao (Xingming Obs.) XOSS Nova 1 XOSS A low resolution spectrum of AT 2023ufj was obtained by XOSS. It shows prominent P Cygni profiles of Hα and Hβ. The overall spectral feature is consistent with the result reported by Kenta Taguchi et al.. 2023TNSCR2583....1Z
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
15852 2023-10-12 17:43:50 Other / Other 10800 Xing Gao (Xingming Obs.) Jingyuan Zhao (Xingming Obs.) XOSS tns_2023ufj_2023-10-12_17-43-50_Other_Other_XOSS.DAT tns_2023ufj_2023-10-12_17-43-50_Other_Other_XOSS.fit Object We obtained the low-resolution spectrum using the Alpy 600 spectrograph attached to a 0.6-m f/8 Ritchey-Chretien telescope.
15763 2023-10-12 23:02:57 Kenta Taguchi Kenta Taguchi (Kyoto University), Kohki Uno (Kyoto University), Masaki Tsurumi (Kyoto University) None Nova -0.00137 1 Our spectrum shows prominent P Cygni profiles of H alpha, H beta, and O I 7774. Therefore we propose this object is a nova in M31. Absorption features of Na I D and possible DIBs are seen. Redshift is determined by the peak of H alpha. 2023TNSCR2569....1T
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
15849 2023-10-11 17:14:33 Other / Other 1200 Kohki Uno, Masaki Tsurumi Kenta Taguchi None tns_2023ufj_2023-10-11_17-14-33_Other_Other.dat tns_2023ufj_2023-10-11_17-14-33_Other_Other.fits Object We performed the follow-up spectroscopic observation using the KOOLS-IFU attached to the 3.8-m Seimei telescope at Okayama Observatory of Kyoto University. The spectral resolution is ~ 500, and the wavelength coverage is 4100-8500 A.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 191732 of Group ZTF
Previous RA, DEC: 00:40:42.527, +40:59:38.98 (10.1771957143, +40.9941614286)
Updated RA, DEC: 00:40:42.533, +40:59:38.86 (10.1772192, 40.9941286)

George
Carey

Magnitude 2023 10 09.80694

Now considerably brighter.

     TMP00B5  C2023 10 09.80694 00 40 42.50 +40 59 39.3          15.9 R      GFC
     TMP00B5  C2023 10 09.81501 00 40 42.50 +40 59 39.1          16.0 R      GFC
     TMP00B5  C2023 10 09.82308 00 40 42.48 +40 59 39.3          16.0 R      GFC
     TMP00B5  C2023 10 09.83115 00 40 42.45 +40 59 38.9          16.1 R      GFC
     TMP00B5  C2023 10 09.83922 00 40 42.52 +40 59 38.6          16.0 R      GFC
     TMP00B5  C2023 10 09.84729 00 40 42.54 +40 59 38.7          16.0 R      GFC
     TMP00B5  C2023 10 09.85536 00 40 42.53 +40 59 38.7          16.1 R      GFC
     TMP00B5  C2023 10 09.86341 00 40 42.51 +40 59 38.7          15.8 R      GFC
     TMP00B5  C2023 10 09.87153 00 40 42.47 +40 59 39.1          15.9 R      GFC

                                                                          Average magnitude 15.98

Completed at 09/10/2023 22:08:35