# SN2024chx Follow-up

**URL:** <https://forum.astro-colibri.science/t/sn2024chx-follow-up/128>\
**Category:** Latest transients\
**Created:** [March 16, 2024, 7:02pm UTC](https://forum.astro-colibri.science/t/sn2024chx-follow-up/128 "2024-03-16T19:02:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jeanpascal.vignes](https://avatars.discourse-cdn.com/v4/letter/j/e19b73/32.png) [@jeanpascal.vignes](https://forum.astro-colibri.science/u/jeanpascal.vignes)\
**Post date:** [March 16, 2024, 7:02pm UTC](https://forum.astro-colibri.science/t/sn2024chx-follow-up/128/1 "2024-03-16T19:02:33Z")

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**Report of the follow-up for SN2024chx**

TNS Astronomical Transient Report No. 202060 [2024TNSTR.412…1S]  
Date Received (UTC): 2024-02-12 09:15:08  
Sender: ZTF (Fritz)  
Reporting Group: ZTF Discovery Data Source: ZTF  
Jesper Sollerman on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: SN 2024chx  
Discoverer internal name: ZTF24aaemydm  
Coordinates (J2000): RA = 09:54:28.517 (148.6188205) DEC = -18:38:10.93 (-18.6363684)  
Discovery date: 2024-02-12 06:07:57.999 (JD=2460352.7555324)

Photometry

Discovery (first detection):  
Discovery date: 2024-02-12 06:07:57.999  
Flux: 18.2315 ABMag  
Filter: g-ZTF  
Instrument: ZTF-Cam  
Telescope: Palomar 1.2m Oschin

Last non-detection:  
Last non-detection date: 2024-02-01 08:56:26  
Limiting flux: 19.5925 ABMag  
Filter: g-ZTF  
Instrument: ZTF-Cam  
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: [https://www.wis-tns.org/object/2024chx](https://www.wis-tns.org/object/2024chx)

 ![SN2024chx.PNG](https://canada1.discourse-cdn.com/flex007/uploads/astro_colibri/original/1X/5548936015834a2884406dc6181891aacae0d3f8.jpeg)

Light-curve in B,V,R

 ![image](https://canada1.discourse-cdn.com/flex007/uploads/astro_colibri/original/1X/3694b30decf7a0e62fdfe571dabf2dae8b60fe11.png)  
 ![SpectraSN2024chx](https://canada1.discourse-cdn.com/flex007/uploads/astro_colibri/original/1X/06d5b2d3ed555d05dcc45c4d5ec3b4b0df7807f9.png)

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**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\
**Post date:** [March 17, 2024, 9:35am UTC](https://forum.astro-colibri.science/t/sn2024chx-follow-up/128/2 "2024-03-17T09:35:20Z")

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Thanks a lot for sharing! Great data!  
For completeness: the SN on Astro-COLIBRI: [SN 2024chx](https://astro-colibri.com/event:TNS2024chx)

Did you take that lightcurve? What telescope did you use? And what are the dates of the lightcurve? (the labels on the x-axis seem strange)

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**Author:** ![jeanpascal.vignes](https://avatars.discourse-cdn.com/v4/letter/j/e19b73/32.png) [@jeanpascal.vignes](https://forum.astro-colibri.science/u/jeanpascal.vignes)\
**Post date:** [March 17, 2024, 5:51pm UTC](https://forum.astro-colibri.science/t/sn2024chx-follow-up/128/3 "2024-03-17T17:51:38Z")

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Hi  
yes it’s my LC I took the data from February the 13 to March the 15, the X axis is BJD-TDB each point is a stack of 8 to 12 exposures lasting 300 sec.  
my setup is a Planewave cdk17 inches, localize in Chile. Usually I do LC for exoplanets, but I want to work on something different for sometimes.  
regards  
jpvignes