RA/DEC (2000)
09:55:23.440 +69:07:55.20
148.847667 +69.132
Type
---
Redshift
Reporting Group
None
Discovering Data Source
None
Discovery Date
2025-05-27 22:51:34.000
TNS AT
Y
Public
Y
Host Name
M81
Discovery Mag
19.6
Filter
Clear-
Reporter/s
Flavio Castellani

Light curves

 Other_Other_Clear
   
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
Clear- Other_Other 2025-05-18 21:41:31 - 2025-05-28 22:39:51 2460814.403831 - 2460824.4443403 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
492576 2025-05-28 22:39:51 2460824.4443403 19.2 0.2 19.8 ABMag Clear- Other_Other 3780 Castellani F. 0.40m f/7 Dall-Kirkham - Osservatorio Monte Baldo -
492575 2025-05-27 22:51:34 2460823.4524769 19.6 0.2 19.9 ABMag Clear- Other_Other 5400 CASTELLANI F. 0.40m f/7 Dall-Kirkham - Osservatorio Monte Baldo -
492574 2025-05-18 21:41:31 2460814.403831 20.2 ABMag Clear- Other_Other 7200 [Last non detection] 0.40m f/7 Dall-Kirkham - Osservatorio Monte Baldo -
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
257237 2025-05-29 14:17:18 Flavio Castellani Flavio Castellani 09:55:23.440 +69:07:55.20 2025-05-27 22:51:34.000 19.6 Clear- PNV M81 OMB-PNV28 Flavio Castellani report the discovery by F.Castellani, R.Belligoli and V.Andreoli of a PNV (Mag. 19.6R +-0.20 - USNOB1 catalogue) in the host galaxy M81 at Monte Baldo Observatory, Ferrara di Monte Baldo, Verona, Italy (A99), in the course of Italian Supernovae Search Project using a 0.40m f/7 Dall-Kirkham telescope (+ Moravian G4-9000 KAF unfiltered CCD camera)30*180 co-added images. No stellar source was visible at the position of the transient in our past images including reference image dated 2025/05/18 21:41:31. A confirmation run of 21x180 co-added images was performed on 2025-05-28 22:39:51. The object is present and has grown to magn. 19.2 2025TNSTR2020....1C N
Related files
File Comments Last Modified (UT) Modified By
tns_2025mlk_atrep_257237.jpg 2025-05-29 14:17:21 Flavio Castellani
No Data

Comments