SN2017eaw

Supernova in the NGC6946  Galaxy 

Astronomer Telegram:

10427 NuSTAR Observation of SN2017eaw 10421 e-MERLIN 5GHz observations of SN2017eaw in NGC6946 10413 Further AMI-LA observations of SN2017eaw at 15 GHz 10407 NIR follow-up of SN 2017eaw 10401 Optical follow-up of SN 2017eaw 10397 Pre-discovery detection of SN 2017eaw by CRTS-II 10394 AMI-LA 15 GHz Observation of the Type IIP Supernova SN 2017eaw 10388 Low frequency GMRT observations of supernova SN 2017eaw 10385 Correction to object name (17aew -> 17eaw) in Atel #10384 10384 Pre discovery R band limits for SN 2017aew 10382 Swift/UVOT upper limits on SN 2017eaw before explosion 10381 Precise astrometric position of SN 2017eaw 10380 X-ray emission of SN 2017eaw and its progenitor 10378 The Probable Red Supergiant Progenitor of SN 2017eaw 10377 Spectroscopic observation of SN 2017eaw by NUTS (NOT Un-biased Transient Survey) 10376 Spectroscopic Classification of SN 2017eaw in NGC 6946 as a Young Type IIP Supernova 10374 LOT spectroscopic classification of AT 2017eaw in NGC 6946 as a Type II SN 10373 Mid-IR progenitor of AT 2017eaw in NGC 6946 10372 Confirmation of AT 2017eaw, a Probable Supernova in NGC 6946

2017eaw (= PSN J20344424+6011359), TNS discovered 2017/05/14.238 by Patrick Wiggins Found in NGC 6946 at R.A. = 20h34m44s.238, Decl. = +60°11'36".00 Located 61".0 west and 143".0 north of the center of NGC 6946 (Discovery image (mirror)) Mag 12.7:5/18, Type IIP (zhost=0.000133) (References: ATEL 10376, 10401, 10397, 10394, 10388, 10384, 10385, 10382, 10381, 10380, 10378, 10377, 10374, 10373, 10372, CBET 4390 VSnet observations, TOCP; SN 2008S, 2004et 2002hh, 1980K, 1969P, 1968D, 1948B, 1939C, 1917A) 2017eaw images sub-page

A listing of Supernovae brighter than 17 Mag. can be found at this site
http://www.rochesterastronomy.org/snimages/

     I will be  monitoring and calculate its magnitude (dimness) over time. As you  can see by the graph below, from the time I started to monitor it on Aug. 30 2011  it had increased in brightness. Please note that  the smaller the magnitude number the brighter the object is.

     I will keep this graph updated by getting at least one image a night (weather permitting) till it is no longer visible.
 

     If you  are interested in how to convert ADU ( Analog Digital Units) values to  a Magnitude value, check out this link http://www.warren-wilson.edu/~physics/Contemp-Astronomy/starmag/starmag.html. You  will need the ADU and Magnitude numbers for a reference star  in the same field as the primary object as well as the ADU value of the object in question.  I use Nebulosity to get the ADU figures.

(This Page was last changed 06/04/2017)

These measurements were taken in the visible light without any color filters using an Orion SSP V2 on a SN8 at 5 minute exposure dark subtracted and flat applied.

These images will be updated as I get more data.