RA/DEC (2000)
00:43:40.180 +41:27:12.60
10.917417 +41.4535
Type
Nova
Redshift
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2021-03-08 14:15:50.000
TNS AT
Y
Public
Y
Host Name
M31
Discovery Mag
16.5
Filter
Clear-
Reporter/s
Jiangao Ruan, Mi Zhang, Xing Gao (Xingming Observatory)

Spectra

 AT_2021fbz - 2021-03-09 10:19:12 Other / Other (None)z=
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   Binning factor: (rounded to nearest integer >1)
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Light curves

 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
9136 2021-03-09 10:19:12 Other / Other 900 Isogai, Taguchi Taguchi None tns_2021fbz_2021-03-09.43_Other_Other.dat tns_2021fbz_2021-03-09.43_Other_Other.fits Object See ATel #14449. 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
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- Other_Other 2016-12-21 17:49:33 - 2021-03-08 14:15:50 2457744.24274 - 2459282.0943287 5
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
196905 2021-03-08 14:15:50 2459282.0943287 16.5 18.5 ABMag Clear- Other_Other 120 Xing Gao using a unfiltered CCD ( 0.5-m f/4 reflector ).
196979 2021-03-07 16:35:21 2459281.19121 16.1 18.9 VegaMag Clear- Other_Other 180 Robot MASTER-Kislovodsk
196978 2021-03-07 16:28:39 2459281.18656 16.2 18.8 VegaMag Clear- Other_Other 180 Robot MASTER-Kislovodsk
196904 2021-03-04 14:26:00 2459278.1013889 18.5 ABMag Clear- Other_Other 120 Xing Gao [Last non detection] using a unfiltered CCD ( 0.5-m f/4 reflector ).
196977 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 Bibcode Unreal Auto classification
101810 2021-03-09 08:38:11 MASTER V. Lipunov,A.Pozdnyakov,E. Gorbovskoy et al. MASTER MASTER 00:43:40.190 +41:27:12.10 2021-03-07 16:28:38.784 16.2 Clear- Other MASTER OT J004340.19+412712.1 MASTER MASTER independently Itagaki Nova detection N
101769 2021-03-08 15:59:52 Mi Zhang Jiangao Ruan,Mi Zhang,Xing Gao (Xingming Observatory) et al. XOSS XOSS 00:43:40.180 +41:27:12.60 2021-03-08 14:15:50.000 16.5 Clear- PNV M31 XN03JR XOSS Jiangao Ruan, Mi Zhang, Xing Gao (Xingming Observatory), report the independent discovery of a possible nova (mag approximately 16.5) on several 120-s survey images (limiting mag about 18.5) taken by Xing Gao at Xingming Observatory #2 (N89) around Mar. 08.59433, 2021 UTC using a unfiltered CCD ( 0.5-m f/4 reflector ). The transient was independently discovered and first announced by Koichi Itagaki and designated as PNV J00434013+4127123. The transient approximately located at R.A.=00h43m40.18s +41d27’12”.6 (equinox 2000.0). Which is about 629.8" east and 664.1" north of the center of the NGC224(M31). Nothing is visible at this position on archival images taken on Mar. 04.60139, 2021 (limiting mag 18.5). Images can be found at: http://xjltp.china-vo.org/xn03jr.html 2021TNSTR.727....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
9126 2021-03-10 02:03:22 Kenta Taguchi Kenta Tagchi (Kyoto Univ), Keisuke Isogai (Kyoto Univ), Claudio Balcon (Belluno A. O., ISSP) None Nova 1 2021TNSCR.745....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
9136 2021-03-09 10:19:12 Other / Other 900 Isogai, Taguchi Taguchi None tns_2021fbz_2021-03-09.43_Other_Other.dat tns_2021fbz_2021-03-09.43_Other_Other.fits Object See ATel #14449. Using a fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.

Comments

Dave
Lane

Pre-Discovery Images of Probable Nova in M31 - AT 2021fbz

Filipp Romanov (Russia) and David Lane (Saint Mary's University, Canada) report a pre-discovery image and an earlier non-detection of probable nova in M31, designated as AT 2021fbz (also known as PNV J00434013+4127123), on several images taken using the Mini-Robotic Observatory (0.10-m telescope+CMOS sensor) located at Abbey Ridge Observatory, Stillwater Lake, Nova Scotia, Canada. First detection: 2021-03-06T23:40:03 UT (luminance filter, 720s exposure, magnitude ~16.5 CV) Earlier non-detection: 2021-03-06T00:27:26 UT (luminance filter, 780s exposure, limiting magnitude ~17.0 CV)