2006 ngc 6811 Campaign Contributors




Дата канвертавання24.04.2016
Памер157.4 Kb.
2006 NGC 6811 Campaign
Contributors

David Trowbridge (TDW)

3537 Gylany Way

Greenbank, WA 98253

360-222-3379

David@tinyblue.com


Rebecca Jensen-Clem

Kirkland, WA

m13.higgs@gmail.com
Observatory

Tinyblue Observatory

Greenbank WA

48º 4’ 54” N 122º 36’ 0” W

www.tinyblue.com
Equipment

Takahashi FSQ-106 at f/8 (4” refractor with 1.6x Extender-Q)

SBIG ST-7E CCD Camera with CFW-8 Filter Wheel

Bessell prescription for Johnson-Cousins filter set (SBIG)


Data Collection Methods

  • All images had the same target area with image center at: 19h 36m 26.65s +46d 16m 54.34s (Astrometry from TheSky; Image scale: 2.51 arcsecs/pixel).

  • Camera was inverted so that a reasonably bright guide star was positioned on the secondary chip of the ST-7. This orientation resulted in images with North down and East to the right.

  • Exposures of 60s each were autoguided using GSC 3556:453 (SAO 48644), a 7.34 magnitude star.

  • Images were taken using photometric B, V and R filters.

  • Exposures of NGC target area were interleaved with exposures of Landolt region SA 111-773 in order to determine transformation coefficients and atmospheric extinction coefficients for all-sky photometry on selected nights (Aug 5, 27; Sep 3, 15, 23; Oct 4).


Image Processing and Photometry

  • Images were captured using CCDSoft v. 5.00.170 and reduced using darks and T-shirt sky flats.

  • All-sky photometry was done using Single Star Photometry tool in AIP4Win v. 2.1.10

  • Light curves were generated using the Analyze Photometry tool in MaxIm DL v. 3.22.

  • Comp stars were selected from Arne Herndan’s data file ngc6811sro.dat.



Contents of this CD

Reduced Images


Evening

Date


Target

Start time* (PDT)

End time

(PDT)


Midpoint time

(UTC)


JD 2450000+

Integration

time


File name

2-Aug-2006

NGC 6811

22:08

22:49

2006-08-03 05:28:30

2453950.728125

720s

2006-08-02_NGC-6811_R.FIT




NGC 6811

22:18

22:56

2006-08-03 05:37:00

2453950.734028

840s

2006-08-02_NGC-6811_V.FIT




NGC 6811

22:30

11:04

2006-08-03 05:47:00

2453950.740972

720s

2006-08-02_NGC-6811_B.FIT

5-Aug-2006

SA 111-773

21:57

22:07

2006-08-06 05:02:00

2453953.709722

360s

2006-08-05_SA111-773_R.FIT




SA 111-773

22:10

22:15

2006-08-06 05:12:30

2453953.717014

180s

2006-08-05_SA111-773_B.FIT




SA 111-773

22:18

22:24

2006-08-06 05:21:00

2453953.722917

300s

2006-08-05_SA111-773_V.FIT




NGC 6811

22:49

23:00

2006-08-06 05:54:30

2453953.746181

360s

2006-08-05_NGC-6811_R.FIT




NGC 6811

23:00

23:08

2006-08-06 06:04:00

2453953.752778

360s

2006-08-05_NGC-6811_B.FIT




NGC 6811

23:09

23:34

2006-08-06 06:21:30

2453953.764931

600s

2006-08-05_NGC-6811_V.FIT




SA 111-773

01:01

01:07

2006-08-06 08:04:00

2453953.836111

240s

2006-08-05_SA111-773(2)_R.FIT




SA 111-773

01:09

01:15

2006-08-06 08:12:00

2453953.841667

300s

2006-08-05_SA111-773(2)_B.FIT




SA 111-773

01:17

01:23

2006-08-06 08:20:00

2453953.847222

300s

2006-08-05_SA111-773(2)_V.FIT

27-Aug-2006

SA 111-773

23:14

23:21

2006-08-28 06:17:30

2453975.762153

300s

2006-08-27_SA111-773_R.FIT




SA 111-773

23:21

23:28

2006-08-28 06:24:30

2453975.767014

240s

2006-08-27_SA111-773_V.FIT




NGC 6811

23:42

00:03

2006-08-28 06:52:30

2453975.786458

540s

2006-08-27_NGC-6811_V.FIT




NGC 6811

23:50

00:10

2006-08-28 06:57:30

2453975.789931

540s

2006-08-27_NGC-6811_R.FIT

3-Sep-2006

SA 111-773

23:45

23:56

2006-09-04 06:49:30

2453982.784375

300s

2006-09-03_SA111-773_B.FIT




SA 111-773

23:58

00:04

2006-09-04 07:01:00

2453982.792361

300s

2006-09-03_SA111-773_V.FIT




SA 111-773

00:08

00:18

2006-09-04 07:13:00

2453982.800694

420s

2006-09-03_SA111-773_R.FIT




NGC 6811

00:37

00:47

2006-09-04 07:42:00

2453982.820833

480s

2006-09-03_NGC-6811_R.FIT




NGC 6811

00:49

00:57

2006-09-04 07:53:00

2453982.828472

360s

2006-09-03_NGC-6811_V.FIT




NGC 6811

01:13

01:23

2006-09-04 08:15:00

2453982.843750

480s

2006-09-03_NGC-6811_B.FIT

15-Sep-2006

SA 111-773

20:43

20:53

2006-09-16 03:48:00

2453994.658333

360s

2006-09-15_SA111-773_R.FIT




SA 111-773

20:55

21:01

2006-09-16 03:58:00

2453994.665278

300s

2006-09-15_SA111-773_V.FIT




SA 111-773

21:05

21:12

2006-09-16 04:07:30

2453994.671875

360s

2006-09-15_SA111-773_B.FIT




NGC 6811

22:28

22:36

2006-09-16 05:32:00

2453994.730556

420s

2006-09-15_NGC-6811_R.FIT




NGC 6811

22:38

22:46

2006-09-16 05:42:00

2453994.737500

420s

2006-09-15_NGC-6811_V.FIT




NGC 6811

22:47

22:56

2006-09-16 05:51:30

2453994.744097

360s

2006-09-15_NGC-6811_B.FIT




SA 111-773

23:12

23:21

2006-09-16 06:16:30

2453994.761458

360s

2006-09-15_SA111-773(2)_R.FIT




SA 111-773

23:30

23:38

2006-09-16 06:34:00

2453994.773611

420s

2006-09-15_SA111-773(2)_V.FIT




SA 111-773

23:44

23:52

2006-09-16 06:48:00

2453994.783333

300s

2006-09-15_SA111-773(2)_B.FIT




NGC 6811

00:21

01:05

2006-09-16 07:43:00

2453994.821528

600s

2006-09-15_NGC-6811(2)_B.FIT




NGC 6811

00:31

01:00

2006-09-16 07:45:30

2453994.823264

600s

2006-09-15_ NGC-6811 (2)_V.FIT




NGC 6811

00:40

00:54

2006-09-16 07:47:00

2453994.824306

600s

2006-09-15_NGC-6811(2)_R.FIT

23-Sep-2006

SA 111-773

21:51

22:02

2006-09-24 04:56:30

2454002.705903

420s

2006-09-23_SA111-773_R.FIT




SA 111-773

22:04

22:10

2006-09-24 05:07:00

2454002.713194

240s

2006-09-23_SA111-773_V.FIT




SA 111-773

22:15

22:25

2006-09-24 05:20:00

2454002.722222

420s

2006-09-23_SA111-773_B.FIT




NGC 6811

22:36

22:45

2006-09-24 05:40:30

2454002.736458

360s

2006-09-23_NGC-6811_B.FIT




NGC 6811

22:47

22:57

2006-09-24 05:52:00

2454002.744444

420s

2006-09-23_NGC-6811_V.FIT




NGC 6811

22:59

23:09

2006-09-24 06:04:00

2454002.752778

420s

2006-09-23_NGC-6811_R.FIT




SA 111-773

23:33

23:41

2006-09-24 06:37:00

2454002.775694

360s

2006-09-23_SA111-773(2)_R.FIT




SA 111-773

23:42

23:49

2006-09-24 06:45:30

2454002.781597

300s

2006-09-23_SA111-773(2)_V.FIT




SA 111-773

23:49

00:01

2006-09-24 06:55:00

2454002.788194

420s

2006-09-23_SA111-773(2)_B.FIT

26-Sep-2006

NGC 6811

22:08

22:18

2006-09-27 05:13:00

2454005.717361

480s

2006-09-26_NGC-6811_R.FIT




NGC 6811

22:27

22:37

2006-09-27 05:32:00

2454005.730556

420s

2006-09-26_NGC-6811_V.FIT




NGC 6811

22:40

22:52

2006-09-27 05:46:00

2454005.740278

540s

2006-09-26_NGC-6811_B.FIT

4-Oct-2006

SA 111-773

21:01

21:11

2006-10-05 04:06:00

2454013.670833

480s

2006-10-04_SA111-773_R.FIT




SA 111-773

21:13

21:22

2006-10-05 04:17:30

2454013.678819

420s

2006-10-04_SA111-773_V.FIT




SA 111-773

21:23

21:33

2006-10-05 04:28:00

2454013.686111

420s

2006-10-04_SA111-773_B.FIT




NGC 6811

21:43

21:53

2006-10-05 04:48:00

2454013.700000

420s

2006-10-04_NGC-6811_B.FIT




NGC 6811

21:54

22:04

2006-10-05 04:59:00

2454013.707639

480s

2006-10-04_NGC-6811_V.FIT




NGC 6811

22:05

22:15

2006-10-05 05:10:00

2454013.715278

480s

2006-10-04_NGC-6811_R.FIT




SA 111-773

22:24

22:34

2006-10-05 05:29:00

2454013.728472

420s

2006-10-04_SA111-773(2)_R.FIT




SA 111-773

22:34

22:44

2006-10-05 05:39:00

2454013.735417

420s

2006-10-04_SA111-773(2)_V.FIT




SA 111-773

22:45

22:55

2006-10-05 05:50:00

2454013.743056

480s

2006-10-04_SA111-773(2)_B.FIT

7-Oct-2006

NGC 6811

20:37

20:51

2006-10-08 03:44:00

2454016.655556

660s

2006-10-07_NGC-6811_V.FIT




NGC 6811

20:53

21:06

2006-10-08 03:59:30

2454016.666319

600s

2006-10-07_NGC-6811_R.FIT




NGC 6811

21:07

21:22

2006-10-08 04:14:30

2454016.676736

660s

2006-10-07_NGC-6811_B.FIT

* Start time is file save time minus exposure time (of initial frame)



All-Sky Photometry Data
The following photometry data was obtained using the Single Star tool in AIP4Win, versions 1 and 2 and images of Landolt region SA 111-773 interspersed with RVB images of the NGC-6811 target region.
Aug 5

Determination of Coefficients 2006-08-05.xls


Aug 26

Determination of Coefficients 2006-08-26.xls

NGC-6811 Campaign 2006-08-27.xls
Sep 15

NGC 6811 Photometry 2006-09-15.doc

Determination of Coefficients 2006-09-15.xls

Atmos Extinction Coefficient_2006-09-15.xls

NGC-6811 Campaign 2006-09-15.xls
Sep 23

NGC 6811 Photometry 2006-09-23.doc

Determination of Coefficients 2006-09-23.xls

Atmos Extinction Coefficient_2006-09-23.xls

NGC-6811 Campaign 2006-09-23.xls
Oct 4

NGC 6811 Photometry 2006-10-04.doc

Determination of Coefficients 2006-10-04.xls

Atmos Extinction Coefficient_2006-10-04.xls

NGC-6811 Campaign 2006-10-04.xls
Transmission_Coefficients_Summary.xls

All-Sky vs Comp.xls


Light Curves
The following data was obtained using the Analyze Photometry tool in MaxIm DL v. 3.22 and using Comp Stars from the All-Sky photometry dataset prepared by Arne Herndon.


AAVSO Suspected Variables.xls

These are the AAVSO stars that fall within the target frame. They include V01, V02, V03, V04, V05, V06, V08 and CTM CYG.

Other Bright Stars.xls

Includes NSV 12196 and other relatively bright stars in the frame (magnitude 8-11)

Other Dimmer Stars.xls

Sixteen other stars in the frame to be checked for variability

Potential Variables.xls

Two stars with evidence for variability, compared with three nearby comp stars of comparable magnitude.




Page of
David Trowbridge (TDW) Wednesday, October 25, 2006



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