RA/DEC (2000)
22:52:32.100 +11:40:26.62
343.13375 +11.674061
Type
SN Ia
Redshift
0.0288
Reporting Group
PSH
Discovering Data Source
PSH
Discovery Date
2018-10-13 20:48:28.000
TNS AT
Y
Public
Y
Host Name
UGC 12222
Discovery Mag
17.1
Filter
Clear-
Reporter/s
Jaroslaw Grzegorzek

Spectra

 SN_2018hhn - 2018-10-14 22:32:37 LT / SPRAT (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 Gaia_Gaia-photometric_G
 ATLAS-MLO_ATLAS-01_orange
 ATLAS-HKO_ATLAS-02_cyan
 Other_Other_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
2904 2018-10-14 22:32:37 LT / SPRAT 500 S. Prentice None tns_2018hhn_2018-10-14_22-32-37_LT_SPRAT.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2018-10-26 16:27:50 - 2018-10-26 20:41:16 2458418.1859954 - 2458418.3619907 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
38052 2018-10-26 20:41:16 2458418.3619907 16.59 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
38051 2018-10-26 16:27:50 2458418.1859954 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2018-10-10 10:50:52 - 2018-10-10 10:50:52 2458401.9519907 - 2458401.9519907 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
37532 2018-10-10 10:50:52 2458401.9519907 19.21 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2018-10-11 09:48:57 - 2018-10-11 09:48:57 2458402.9089931 - 2458402.9089931 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
37533 2018-10-11 09:48:57 2458402.9089931 18.55 0.121 19.71 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
Clear- Other_Other 2018-10-01 22:00:28 - 2018-10-13 20:48:28 2458393.4169907 - 2458405.3669907 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
37519 2018-10-13 20:48:28 2458405.3669907 17.1 19 VegaMag Clear- Other_Other 45 Jaroslaw Grzegorzek Instrument: 10" f/3.3 reflector, CMOS camera
37518 2018-10-01 22:00:28 2458393.4169907 19 VegaMag Clear- Other_Other 45 Jaroslaw Grzegorzek [Last non detection] Instrument: 10" f/3.3 reflector, CMOS camera
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
23778 2018-10-29 11:02:46 Gaia_Bot1 A. Delgado,D. Harrison,S. Hodgkin et al. GaiaAlerts GaiaAlerts 22:52:32.100 +11:40:26.62 2018-10-26 20:41:16.000 16.59 G-Gaia PSN Gaia18del GaiaAlerts confirmed SN Ia SN2018hhn first detected by J. Grzegorzek N
23514 2018-10-14 19:43:46 ATLAS_Bot1 J. Tonry,L. Denneau,A. Heinze et al. ATLAS ATLAS 22:52:32.097 +11:40:26.54 2018-10-11 09:48:57.000 18.55 cyan-ATLAS PSN ATLAS18wrh ATLAS N
23507 2018-10-13 21:33:03 Jaroslaw Grzegorzek Jaroslaw Grzegorzek et al. PSH PSH 22:52:32.060 +11:40:26.70 2018-10-13 20:48:28.000 17.1 Clear- PSN UGC 12222 PSH Jaroslaw Grzegorzek, Szczecin, Poland, reports the discovery of a possible supernova (mag 17.1) on unfiltered images (limiting mag 19.0) taken by himself on 2018 10 13.867 with a 0.25-m f/3.3 reflector at his observatory (MPC:L25) in the course of the supernova search project. 2018TNSTR1570....1G N
Related files
File Comments Last Modified (UT) Modified By
tns_2018hhn_atrep_23507_PSH.jpg 2018-10-13 22:10:38 Jaroslaw Grzegorzek
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
2896 2018-10-15 04:46:35 Simon Prentice S. J. Prentice (QUB) None SN Ia 0.0288 1 Using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024), the spectrum matches type Ia SN 1994ac approximately 11 days before maximum light. 2018TNSCR1585....1P
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
2904 2018-10-14 22:32:37 LT / SPRAT 500 S. Prentice None tns_2018hhn_2018-10-14_22-32-37_LT_SPRAT.txt Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 23778 of Group GaiaAlerts
Previous RA, DEC: 22:52:32.060, +11:40:26.70 (343.133583, +11.674083)
Updated RA, DEC: 22:52:32.100, +11:40:26.62 (343.13375, 11.674061)