Mar 12, 2018 UT: Checking NSV 03287 (again)

Michael Richmond
Mar 24, 2018

On the night of Mar 11/12, 2018, Victor Rau-Sirois and Jen Connelly checked one of the stars in his observing program of suspected variables: NSV 03287.

The main setup was:

• Meade 12-inch telescope
• no focal reducer, so working at f/10
• Atik 11000 CCD camera
• ATIK EFW2 filterwheel with V filter
• images taken binned 2x2
• V-band focus position 0.363, yields FWHM approx 4 pixels

Conditions were fair:

• clear at the start of the night, but clouds increased throughout the run
• no Moon

NSV 03287

The target was NSV 03287 .

                                 RA    (J2000)    Dec              V

  NSV 03287                  06 57 06.2         +44 06 35 	   

  A = UCAC4 672-047819 	     06 57 20.876       +44 14 42.31     10.813

  B = UCAC4 672-047806 	     06 57 07.007       +44 12 42.14     11.102

  C = UCAC4 671-048799 	     06 57 08.550       +44 04 59.11     12.085

The output of our ensemble photometry of stars in this field indicates that the transperency gradually decreased (probably due to the increase in airmass), but one set of clouds moved over the field near the end of the run.

The precision of the photometry was good: in the sigma-vs-mag graph below, note that bright stars have a scatter of about one percent = 0.01 mag.

Last modified 3/1/2018 by MWR.