*** This object was marked as unreal - check the AT report/s for details ***
RA/DEC (2000)
09:17:54.074 -22:20:55.86
139.475308 -22.34885
Type
---
Redshift
Related AstroNotes: 2025-29
Reporting Group
BlackGEM
Discovering Data Source
BlackGEM
Discovery Date
2025-01-23 03:45:53.000
TNS AT
Y
Public
Y
Discovery Mag
18.41
Filter
BG-q-BlackGem
Reporter/s
P. Groot, H. Tranin, F. Stoppa, D. Pieterse, G. Ramsay, S. Faris, P. Vreeswijk, N. Blagorodnova, J. van Roestel, H. Wichern, S. Scaringi

Light curves

 BG3_BlackGEM-Cam3_BG-q
 BG2_BlackGEM-Cam2_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
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-01-23 03:45:53 - 2025-01-23 03:45:53 2460698.6568634 - 2460698.6568634 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
464022 2025-01-23 03:45:53 2460698.6568634 18.41 0.04 21.12 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-01-22 06:50:23 - 2025-01-22 06:50:23 2460697.7849884 - 2460697.7849884 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
464021 2025-01-22 06:50:23 2460697.7849884 20.98 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 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
242114 2025-01-23 08:15:08 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 09:17:54.074 -22:20:55.86 2025-01-23 03:45:53.000 18.41 BG-q-BlackGem PSN BGEM J091754.07-222055.8 BlackGEM [Cosmic ray in a single detection, accidentally reported. ] 2025TNSTR.310....1G Y
Related files
File Comments Last Modified (UT) Modified By
tns_2025aaa_atrep_242114_BlackGEM.pdf Finding Chart 2025-01-23 08:15:11 BlackGEM_Bot1
No Data

Comments

Hugo
Tranin

To be retracted - cosmic ray

The object was not detected in the second BlackGEM observation, at 5:05AM the same night, with limiting magnitude 20.2. It was probably a cosmic ray. Apologies for reporting it.