Oct 21, 2017 UT: observations of NSV 14451 and (for a second time) NSV 13514

Michael Richmond
Oct 17, 2017

On the night of Oct 20/21, 2017, capstone student Victor Rau-Sirois and I spent about 6 hours at the Observatory.

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
• we tried using the guider, but it lost stars after 20-30 minutes

Conditions were fair:

• some cirrus early, but bands of thin cloud later
• no wind
• cool: T = 49 F / 9 C when we stopped at about midnight
• V-band focus was 0.786

First, we turned to one of the objects on Victor's list of possible variable stars: NSV 14451.

The target is at

    RA = 23 11 17.9      Dec = +59 07 08

A chart made with Aladin, based on the DSS1 plates, is shown below. The chart is 16 x 13 arcminutes on a side, with North up, East to the left.

The drift over the course of our observations was

Next, we turned for a second time to the candidate NSV 13514. We observed this star earlier, on Oct 01/02, 2017. This star is at

    RA = 21 04 58.01     Dec = +27 23 55.8

A chart made with Aladin, based on the DSS1 plates, is shown below. The chart is 16 x 13 arcminutes on a side, with North up, East to the left.

Last modified 10/25/2017 by MWR.