RA/DEC (2000)
17:03:47.290 +24:39:05.71
255.947042 +24.651586
Type
CV
Redshift
Discovery ReportClassification Report
Related AstroNotes: 2023-228
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2023-07-19 17:45:03.168
TNS AT
Y
Public
Y
Discovery Mag
17.1
Filter
Clear-
Reporter/s
XiaoChang Yan, Mi Zhang, Jianlin Xu, Leiming Tang, Wenjie Zhou, Jingyuan Zhao, Guoyou Sun, Jiangao Ruan, Xing Gao and the PSP team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2023nnk - 2023-08-15 23:09:42 INT-2.5m / IDS (GOTO)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),

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌ML1_MeerLICHT-Cam_BG-q
 ▌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
15470 2023-08-15 23:09:42 INT-2.5m / IDS D. O'Neill, B. Godson, B. Warwick GOTO tns_2023nnk_2460172.4650666_INT-2.5m_IDS_GOTO.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2023-07-25 01:29:44 - 2023-07-25 01:29:44 2460150.56232 - 2460150.56232 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
357696 2023-07-25 01:29:44 2460150.56232 17.83 0.05 ABMag L-GOTO GOTO-N_GOTO-2 240
L-GOTO GOTO-N_GOTO-1 2023-06-18 02:42:53 - 2023-06-18 02:42:53 2460113.613106 - 2460113.613106 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
357695 2023-06-18 02:42:53 2460113.613106 20.4 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2023-07-16 23:57:05 - 2023-07-16 23:57:05 2460142.4979745 - 2460142.4979745 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587438 2023-07-16 23:57:05 2460142.4979745 16.84 0.02 19.94 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem ML1_MeerLICHT-Cam 2021-07-10 20:16:20 - 2021-07-10 20:16:20 2459406.3446759 - 2459406.3446759 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587437 2021-07-10 20:16:20 2459406.3446759 21.5 ABMag BG-q-BlackGem ML1_MeerLICHT-Cam 60 robotic [Last non detection]
Clear- Other_Other 2023-07-19 17:45:03 - 2023-07-19 17:45:03 2460145.23962 - 2460145.23962 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
353482 2023-07-19 17:45:03 2460145.23962 17.1 18 VegaMag Clear- Other_Other 40 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
306283 2026-05-27 17:43:28 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 17:03:47.290 +24:39:05.71 2023-07-16 23:57:05.000 16.84 BG-q-BlackGem PSN BGEM J170347.29+243905.7 BlackGEM N
184831 2023-08-16 13:12:39 GOTO_bot T. Killestein, D. O'Neill, J. Lyman et al. GOTO GOTO 17:03:47.310 +24:39:06.03 2023-07-25 01:29:44.448 17.83 L-GOTO Other GOTO23sz GOTO N
182819 2023-07-20 02:55:13 Mi Zhang XiaoChang Yan, Mi Zhang, Jianlin Xu et al. XOSS XOSS 17:03:47.310 +24:39:06.40 2023-07-19 17:45:03.168 17.1 Clear- PSN PSP23I XOSS UG candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/psp23i.html 2023TNSTR1717....1Y N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
15395 2023-08-16 11:09:02 Joe Lyman D. O'Neill, B. Godson, B. Warwick, T. Killestein, J. Lyman, K. Ackley, D. Steeghs, D. K. Galloway, V. Dhillon, G. Ramsay, P. O'Brien, D. Pollacco, S. Poshyachinda, R. Kotak, L. Nuttall, E. Pallé, K. Ulaczyk, M. Dyer, A.Kumar, on behalf of GOTO collaboration GOTO CV 1 GOTO Blue continuum with Balmer emission at z~0. Galactic and likely a CV. 2023TNSCR1988....1O
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
15470 2023-08-15 23:09:42 INT-2.5m / IDS D. O'Neill, B. Godson, B. Warwick GOTO tns_2023nnk_2460172.4650666_INT-2.5m_IDS_GOTO.txt Object

Comments

TNS
System

Wed, 05/27/2026 - 17:43

Object coordinates updated

Object coordinates updated according to AT-report 306283 of Group BlackGEM
Previous RA, DEC: 17:03:47.310, +24:39:06.40 (255.947125, +24.651778)
Updated RA, DEC: 17:03:47.290, +24:39:05.71 (255.947042, +24.651586)