How does V838 Monocerotis look today? Any subsequent light echo images, or is the party over?
I'm not an observational expert, but here's what I found. 

I found this object (V838 Monocerotis) on the HST data archive. 

https://archive.stsci.edu/hst/search.php

I input the 'Target Name' as "V838 Monocerotis", clicked all 'Imagers', 'Spectrographs', and 'Other,' and searched it.

(You can also do the exactly the same thing I did because this site is opened for everyone.)

And there are 199 images of this object. And the last observation was made in 2012. Unfortunately, I couldn't see any echoes in the picture taken in 2012. So I looked from the beginning. And I found this!



This picture was taken from 2006-09-09 20:04:57 to 2006-09-10 01:14:57. Dataset number is J9SF01020. You can see that the shape of the echo. There are other pictures in the archive, but I couldn't see significant echo shape anymore after that.

I'm sorry to say that the party is over, the echo was faded away.

I also love this picture, it means a lot to me because this picture made me study Astronomy. Thanks for making me remind this memory.

P.S.: If you want other pictures, especially color pictures, check out this link too.

http://hla.stsci.edu/hlaview.html#Images|filterText%3D%24filterTypes%3D|query_string=V838%20Monocerotis&amp;posfilename=&amp;poslocalname=&amp;posfilecount=&amp;listdelimiter=whitespace&amp;listformat=degrees&amp;RA=106.020093&amp;Dec=-3.847399&amp;Radius=0.200000&amp;inst-control=all&amp;inst=ACS&amp;inst=ACSGrism&amp;inst=WFC3&amp;inst=WFPC2&amp;inst=NICMOS&amp;inst=NICGRISM&amp;inst=COS&amp;inst=WFPC2-PC&amp;inst=STIS&amp;inst=FOS&amp;inst=GHRS&amp;imagetype=best&amp;prop_id=&amp;spectral_elt=&amp;proprietary=both&amp;preview=1&amp;output_size=256&amp;cutout_size=12.8|ra=&amp;dec=&amp;sr=&amp;level=&amp;image=&amp;inst=ACS%2CACSGrism%2CWFC3%2CWFPC2%2CNICMOS%2CNICGRISM%2CCOS%2CWFPC2-PC%2CSTIS%2CFOS%2CGHRS&amp;ds=