RA/DEC (2000)
03:39:53.916 -30:04:43.86
54.97465 -30.07885
Type
---
Redshift
Discovery Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-09-24 15:32:53.376
TNS AT
Y
Public
Y
Discovery Mag
19.68
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Light curves

 ▌GOTO-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌BG4_BlackGEM-Cam4_BG-q
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
No Data
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-24 15:32:53 - 2025-09-24 15:32:53 2460943.147842 - 2460943.147842 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520472 2025-09-24 15:32:53 2460943.147842 19.68 0.13 ABMag L-GOTO GOTO-S_GOTO-4 360
L-GOTO GOTO-S_GOTO-3 2025-09-20 16:40:19 - 2025-09-20 16:40:19 2460939.194661 - 2460939.194661 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520471 2025-09-20 16:40:19 2460939.194661 20.6 ABMag L-GOTO GOTO-S_GOTO-3 360 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-09-11 09:04:43 - 2025-09-24 04:39:52 2460929.8782755 - 2460942.6943519 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587630 2025-09-24 04:39:52 2460942.6943519 19.93 0.17 20.13 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
587629 2025-09-11 09:04:43 2460929.8782755 19.69 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
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
306379 2026-05-27 18:31:02 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 03:39:53.916 -30:04:43.86 2025-09-24 04:39:52.000 19.93 BG-q-BlackGem PSN BGEM J033953.92-300443.9 BlackGEM N
271556 2025-09-27 21:31:09 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 03:39:53.849 -30:04:43.64 2025-09-24 15:32:53.376 19.68 L-GOTO Other GOTO25hwa GOTO 2025TNSTR3885....1O N
No Data

Comments

TNS
System

Wed, 05/27/2026 - 18:31

Object coordinates updated

Object coordinates updated according to AT-report 306379 of Group BlackGEM
Previous RA, DEC: 03:39:53.849, -30:04:43.64 (54.974372, -30.07879)
Updated RA, DEC: 03:39:53.916, -30:04:43.86 (54.97465, -30.07885)