RA/DEC (2000)
16:23:14.332 +65:00:36.28
245.80971629017 +65.010078594892
Type
CV
Redshift
0
Reporting Group
LAST
Discovering Data Source
LAST
Discovery Date
2025-05-28 22:02:32.352
TNS AT
Y
Public
Y
Discovery Mag
17.52
Filter
Clear-
Reporter/s
E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS), A. Horowicz (WIS), S. Garrappa (WIS), S. Ben-Ami (WIS), D. Polishook (WIS), O. Yaron (WIS), P. Chen (WIS), A. Krassilchtchikov (WIS), Y. M. Shani (WIS), E. Segre (WIS), A. Gal-Yam (WIS), S. Spitzer (WIS), and K. Rybicki (WIS) on behalf of the LAST Collaboration

Spectra

 AT_2025mka - 2025-05-30 21:34:37 Other / Other (None)z=
Show H at z=vexp= km/s
Show He at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),

Light curves

 LAST_LAST-Cam_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
21281 2025-05-30 21:34:37 Other / Other 7200 Emmanuel Soubrouillard Robin Leadbeater None tns_2025mka_2025-05-30_21-34-37_Other_Other_None.dat tns_2025mka_2025-05-30_21-34-37_Other_Other_None.fit Object Spectrum taken by Emmanuel Soubrouillard using an ALPY200 grism slit spectrograph (R~130) and a 0.3m aperture telescope
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-07-05 18:00:23 - 2025-05-28 22:02:32 2460497.25027 - 2460824.41843 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492455 2025-05-28 22:02:32 2460824.41843 17.52 ABMag Clear- LAST_LAST-Cam 400
492454 2024-07-05 18:00:23 2460497.25027 20.94 ABMag Clear- LAST_LAST-Cam 5940 [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
257179 2025-05-29 00:47:15 LAST_Bot1 E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al. LAST LAST 16:23:14.332 +65:00:36.28 2025-05-28 22:02:32.352 17.52 Clear- PSN LAST 2025TNSTR2019....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21281 2025-06-11 13:26:38 Robin Leadbeater Emmanuel Soubrouillard, Robin Leadbeater None CV 0 1 The spectrum shows a featureless blue continuum except for a broad absorption at the H delta rest wavelength. The object is collocated (within <1 arcsec) with AT2018ltl, previously classified as a CV. Igor Andreoni et al 2020 ApJ 904 155 There is a faint stellar object at this location in the PanSTARRS reference image. We therefore consider it likely to be an outburst of CV AT2028ltl 2025TNSCR2185....1S
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
21281 2025-05-30 21:34:37 Other / Other 7200 Emmanuel Soubrouillard Robin Leadbeater None tns_2025mka_2025-05-30_21-34-37_Other_Other_None.dat tns_2025mka_2025-05-30_21-34-37_Other_Other_None.fit Object Spectrum taken by Emmanuel Soubrouillard using an ALPY200 grism slit spectrograph (R~130) and a 0.3m aperture telescope

Comments

Robin
Leadbeater

AT 2018ltl ?

An outburst of  AT 2018ltl ?