I recently posted about taking some pictures of a newly discovered possible Nova. As a possible or unconfirmed Nova it had the easily pronounced name “PNV J18365700-2855420.” Now that it is confirmed we can use the more common nickname of Nova Sagittarii 2015 No. 2.
According to various sources the object has been confirmed as a nova of the type where a small white dwarf star accumulates matter on its surface from a close and larger companion star. At some point the accumulated matter reaches a temperature and pressure for a fusion reaction resulting in blowing layers of the accumulated star matter outward, increasing the surface area and brightness of the star. We see this as a ‘suddenly’ brightening star where perhaps there had not been one seen at that location before.
Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.