RA/DEC (2000)
19:14:51.630 +08:00:06.40
288.7151248 +8.0017773
Type
---
Redshift
0
Discovery ReportClassification Report
Related AstroNotes: 2025-284
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2025-07-29 17:17:05.280
TNS AT
Y
Public
Y
Discovery Mag
19.02
Filter
Clear-
Reporter/s
Jianlin Xu, Mi Zhang, Guoyou Sun, Jiangao Ruan, Jingyuan Zhao, Wenjie Zhou, Yong Ma, Ye, Zhuoyang Chen (Xingming Obs.), Hanjie Tan (AUUK), Guangwei Wu (NAAA), Xing Gao, Ali Esamdin, Chunhai Bai, Yong Wang (XAO), on behalf of the KATS team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2025sqe - 2025-09-16 14:48:30 Other / Other (XOSS)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),

Light curves

 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌Other_Other_J
 ▌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
22048 2025-09-16 14:48:30 Other / Other 10800 Xing Gao (Xingming Obs.) Jingyuan Zhao (Xingming Obs.) XOSS tns_2025sqe_2025-09-16_14-48-30_Other_Other_XOSS.DAT tns_2025sqe_2025-09-16_14-48-30_Other_Other_XOSS.fit Object We obtained a spectrum of the transient using the Alpy 600 spectrograph mounted on the 0.6-m f/8 Ritchey-Chretien telescope at Xingming Observatory.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-07-19 03:55:39 - 2025-07-19 03:55:39 2460875.66365 - 2460875.66365 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514940 2025-07-19 03:55:39 2460875.66365 19.3 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-20 21:27:43 - 2025-07-20 21:27:43 2460877.39425 - 2460877.39425 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514941 2025-07-20 21:27:43 2460877.39425 19.111 0.194 19.16 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-07-28 23:48:55 - 2025-07-29 00:59:25 2460885.492299 - 2460885.541255 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519597 2025-07-29 00:59:25 2460885.541255 19.84 0.18 ABMag L-GOTO GOTO-N_GOTO-1 360
519596 2025-07-28 23:48:55 2460885.492299 19.9 ABMag L-GOTO GOTO-N_GOTO-1 270 [Last non detection]
r-Sloan P48_ZTF-Cam 2025-07-05 08:06:37 - 2025-07-09 07:41:42 2460861.8379282 - 2460865.820625 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519162 2025-07-09 07:41:42 2460865.820625 20.373 0.197 ABMag r-Sloan P48_ZTF-Cam First detection
519161 2025-07-05 08:06:37 2460861.8379282 20.663 ABMag r-Sloan P48_ZTF-Cam [Last non detection]
J-Bessel Other_Other 2025-07-30 08:52:48 - 2025-07-30 08:52:48 2460886.87 - 2460886.87 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507793 2025-07-30 08:52:48 2460886.87 15.8 0.1 ABMag J-Bessel Other_Other discovered by P40 / WINTER in its Galactic plane survey
Clear- Other_Other 2025-07-29 17:17:05 - 2025-07-29 17:17:05 2460886.2202 - 2460886.2202 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506115 2025-07-29 17:17:05 2460886.2202 19.02 0.21 19.5 VegaMag Clear- Other_Other 60 Xing Gao
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
271165 2025-09-24 09:13:23 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 19:14:51.695 +08:00:06.57 2025-07-29 00:59:24.864 19.84 L-GOTO Other GOTO25fps GOTO N
270947 2025-09-22 11:54:20 Andrea Reguitti Andrea Reguitti (INAF-OAPd) et al. ZTF 19:14:51.630 +08:00:06.40 2025-07-09 00:00:00.000 20.373 r-Sloan PNV Milky Way ZTF25abccstt ZTF Information provided by the ALeRCE broker. N
268953 2025-09-01 20:17:08 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 19:14:51.628 +08:00:06.48 2025-07-20 21:27:43.200 19.111 orange-ATLAS PSN ATLAS25hzv ATLAS N
265224 2025-08-07 23:11:49 Viraj Karambelkar Viraj Karambelkar on behalf of the WINTER collaboration et al. WINTER WINTER 19:14:51.627 +08:00:06.35 2025-07-30 08:52:48.000 15.8 J-Bessel Other WNTR25fhdoi WINTER slowly brightening transient in the Galactic plane. N
264319 2025-07-30 08:50:33 Mi Zhang Jianlin Xu,Mi Zhang,Guoyou Sun et al. XOSS XOSS 19:14:51.610 +08:00:06.30 2025-07-29 17:17:05.280 19.02 Clear- Other KATS25O021 XOSS CV candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats25o021.html 2025TNSTR2993....1X N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22048 2025-09-18 07:30:12 Jingyuan Zhao Jingyuan Zhao, Xing Gao (Xingming Obs.) XOSS Other 0 1 XOSS The spectrum shows a strong and narrow Hα emission line, with no other features. Given the slow evolution of the object's brightness, it might be a very slow nova, but other interesting classifications cannot be ruled out either. Further spectral observations and multi-color photometric observations are strongly encouraged to clarify its nature. 2025TNSCR3765....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
22048 2025-09-16 14:48:30 Other / Other 10800 Xing Gao (Xingming Obs.) Jingyuan Zhao (Xingming Obs.) XOSS tns_2025sqe_2025-09-16_14-48-30_Other_Other_XOSS.DAT tns_2025sqe_2025-09-16_14-48-30_Other_Other_XOSS.fit Object We obtained a spectrum of the transient using the Alpy 600 spectrograph mounted on the 0.6-m f/8 Ritchey-Chretien telescope at Xingming Observatory.

Comments

TNS
System

Mon, 09/22/2025 - 11:54

Object coordinates updated

Object coordinates updated according to AT-report 270947 of Group ZTF
Previous RA, DEC: 19:14:51.628, +08:00:06.48 (288.715117333, +8.00179877778)
Updated RA, DEC: 19:14:51.630, +08:00:06.40 (288.7151248, +8.0017773)

TNS
System

Mon, 09/01/2025 - 20:17

Object coordinates updated

Object coordinates updated according to AT-report 268953 of Group ATLAS
Previous RA, DEC: 19:14:51.610, +08:00:06.30 (288.715042, +8.00175)
Updated RA, DEC: 19:14:51.628, +08:00:06.48 (288.715117333, +8.00179877778)