The Current Situation With FN SGR?
The Z AND-type variable 1848-19 FN SGR is one of the most peculiar objects on my regular observing program and long a favorite of mine. It is subject to exceedingly protracted episodes of recurring outbursts, such that the star is rarely found at minimum light during most observing seasons. Over much of the 2013 observing season this variable was near minimum and reported at roughly magnitude 13.0 or fainter, although there may be some suggestions of a small rise taking place toward late summer shortly before FN entered the twilight.
This past spring Steve O'Connor submitted the only estimates reported to the AAVSO during the early portion of FN SGR's 2014 observing season. These came in the form of two CCD values. One is dated near the end of February, the other about ten days later. These put the star at a moderately bright 12.0 and well above minimum. However, two months later at the beginning of June 2014 Andy Pearce reported a single fainter than magnitude 13.5 for FN SGR. Nevertheless, when I looked in on the star on June 20th and 23rd, I recorded brightnesses in the mid 12's, or once again well above normal minimum.
Now I've known both Steve and Andy over many years and both are very trustworthy observers. So just what is FN doing? It certainly would be uncustomary for FN SGR to behave in such a manner over such a short interval. I would thus ask if perhaps someone could take the time to look into one of the sky survey data banks for a 2014 lightcurve of FN SGR and inform us of just what those say has been going on lately with this most unusual variable.