Galactic Nova ASASSN-17hx is still rising – 21 July 2017

After one week from our previous observation, we looked for the galactic nova ASASSN-17hx again, finding it brighter, at least on CCD images! This objects continues to shines for most of the night, waiting for you observing it.

Galactic nova ASASSN-17hx in Scutum: 21 July 2017

Galactic nova ASASSN-17hx in Scutum: 21 July 2017

The image above is the average of five, 30-seconds exposures, unfiltered, remotely taken with “Elena” (PlaneWave 17″+Paramount ME+SBIG STL-6303E) robotic unit available at Virtual Telescope. The image scale is 1.2″/pixel.

Doing photometric analysis on some of our images, we measured a magnitude of 9.7 (unfiltered, R-mags for the reference stars from UCAC-4), which means the star brightened a few tens of magnitude in a week.  In one month from its discovery, it gained two full magnitudes in CCD images. Accordingly to the AAVSO , visually it still shines around mag. 10.4/10.5, accessible with very small instruments.

Back to the “Novae” page

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!

Comments

comments

You may also like...

Leave a Reply

Your email address will not be published.

Follow

Get every new post on this blog delivered to your Inbox.

Join other followers: