Supernova ASASSN-15lf in NGC 4108: an image (15 June 2015)
The supernova ASASSN-15lf in NGC 4108 was promptly imaged at Virtual Telescope as part of a cooperation with the ASAS-SN survey (ATel 7634).
The image above comes from the average of three, 120-seconds exposures, unfiltered, remotely collected with the PlaneWave 17″+Paramount ME+SBIG STL-6303E robotic unit part of the Virtual Telescope Project. The supernova was estimated at mag. 15.9 (R mags for the reference stars from UCAC-4). The source is marked by two small segments. At the imaging time the Sun was only 9 deg. below the western horizon, so the sky was quite bright. Spectra showed this is a type IIn supernova caught at early stage.
Support The Virtual Telescope Project!
If everyone reading this right now would donate something, our fundraiser would be done in a few days. Please, donate and receive stunning, LIMITED EDITION panel showing the evolution of comet 46P/Wirtanen over the last weeks and more amazing images, specifically made for supporters like you!
donate now (you can adjust the amount later)
You can also order our 2019 Calendar, featuring our unique images of the stars above the legendary monuments of Rome!