AT 2018dya
RA/DEC (2000)
05:41:46.570 -71:48:37.76
85.444042 -71.810489
Type
---
Redshift
Discovery Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-07-13 10:33:36.000
TNS AT
Y
Public
Y
Host Name
LMC
Discovery Mag
13.3
Filter
V-Johnson
Reporter/s
K. Z. Stanek, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS
Spectra
No Data
Light Curves
FilterTel / InstObs-date rangePhotometry
V-JohnsonASASSN-2_Cassius2018-07-13 10:33:36 - 2018-07-13 10:33:361
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
320242018-07-13 10:33:3613.3VegaMagV-JohnsonASASSN-2_Cassius
G-GaiaGaia_Gaia-photometric2018-05-14 16:40:47 - 2018-06-18 08:25:262
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
324052018-06-18 08:25:2610.710.2ABMagG-GaiaGaia_Gaia-photometric60Robot
324042018-05-14 16:40:4721.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
g-SloanASASSN-3_Paczynski2018-05-27 22:33:36 - 2018-05-27 22:33:361
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
320232018-05-27 22:33:3616.5ABMagg-SloanASASSN-3_Paczynski[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
208292018-07-25 05:50:38Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlertsGaiaAlerts05:41:46.570-71:48:37.762018-06-18 08:25:26.00010.71G-GaiaPSNGaia18bvgGaiaAlertscandidate LMC nova, aka ASASSN-18pf
206632018-07-15 15:20:32KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SNASAS-SN05:41:46.462-71:48:37.582018-07-13 10:33:36.00013.3V-JohnsonPNVASASSN-18pfASAS-SNIn several epochs, fading, most likely a Nova in the LMC, there was a seasonal gap in the coverage
Classification Reports
No Data

Comments

TNS System (WIS)

Sun, 06/23/2019 - 10:45

Object coordinates updated according to AT-report 20829 of Group GaiaAlerts
Previous RA, DEC: 05:41:46.462, -71:48:37.58 (85.44359, -71.81044)
Updated RA, DEC: 05:41:46.570, -71:48:37.76 (85.444042, -71.810489)

Mr. Daniel Bamberger (Northolt Branch Observatories (IAU codes Z80, Z48, Z37))

Thu, 07/19/2018 - 09:34

Astrometry from a stack of 2x60s CCD images made by Róbert Fidrich, Hungary, on July 18.8118 UT:
The position is measured in Astrometrica as RA 05:41:46.567 (±0.12") Dec -71:48:37.70 (±0.10"). For the astrometric solution, 90 reference stars from Gaia DR2 (brightness 11-16 mag) are used, with an astrometric threshold of 0.3". Astrometrica gives dRa=0.11" and dDe=0.09" for the reference star ensemble (the uncertainties above are proper uncertainties for the target star).

Photometry V=14.04 ±0.04 mag using KOPR software. APASS V comparison stars, 7px aperture radius and ACF filter. 5 comparison stars between 12.2 and 13.7 mag, chosen to have B-V<0.8 mag and deviation <0.06 mag.

Mr. Robert Fidrich (Hungarian Astronomical Association, "Vendégcsillag-kereső" (Guest Star Hunter) team)

Thu, 07/19/2018 - 08:06

2x60s CCD V image made by Róbert Fidrich (HAA/VSS, Hungary) remotely with 0.43m T17 reflector of Itelescope facitilies at Siding Spring, Australia
Photometry: 14.06V on 2018 July 18.8118 UT
Precize astrometry made Pál Brlás (HAA/VSS, Hungary), based on my CCD images: 05 41 46.53 -71 48 37.6 (+-0.5")

Calibrated-T17-fiduszka-ASASSN-18pf-20180718-052735-V-BIN1-E-060-001.fit