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CCD Images - Session 132 (2006-08-05)

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Objects Session Notes
HIP 67593 - Nearby star
Barnard's Star- Nearby star
SS Cyg - Variable Star
Selected SKIFF Standard Stars
NGC 7790 - Open Cluster / Standard Star Field
Maffei 2 - Galaxy through Infrared Filter
R CrB - Variable Star
U And - Mira variable
W And - Mira variable
EZ And - Mira variable
Algol - Binary Eclipsing Variable Star
HD 209458 (Osiris) - Parent Star to exosolar planet
NGC 6934 - Globular Cluster
NGC 7006 - Globular Cluster
AXP Monitoring (4U 0142+615 & 1E 2259+586)
HD 5501 - Suspected Binary Eclipsing Variable
- 4 hr 30m session (+ Sky Flats and Dark Frame library (-12 degC)
- mild night (requiring imaging at CCD temperature of only -12 degC, compared to normal summer CCD operation of -15 degC)
- main objectives was to acquire images of selected standard stars through B,V,R & I filters, together with ongoing monitoring of dwarf nova SS Cyg & nearby star astrometry
- opportunity taken to acquire images of Maffei 2 through  Infrared filter
- More Notes

HIP 67593 - Nearby star 

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of HIP 67593 (Bootes).
(HIP 67593 Project )

Astrometry measurement of HIP 67593  based on 7 images (#132012-18)
1x1 binning, 60s exposure, C Filter
Date/Time (UT) Star RA (epoch 2000) Dec (epoch 2000)  
2006-08-05 22:40  HIP 67594 (A) 13h 51m 02.89s +/-0.01s +23d 45m 44.58s +/-0.05s  
2006-08-05 22:40  HIP 67593 (B) 13h 51m 00.89s +/-0.01s +23d 45m 55.85s +/-0.05s  
Average Position, Errors bars at +/-1 SD

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Barnard's Star (HIP 87937) - Nearby Star

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Barnard's Star (Ophiuchus).
(Barnards Star Project)

Motion of Barnard's Star  ( 2005-09-30  to  2006-08-05 )
[Measured Proper Motion 10.8 arc sec/year, PA 355.3 deg
 (based on 0.85 year observation window) ]
 
 
Astrometry measurement of Barnard's Star based on 7 images 
(#132026-32), 1x1 binning, 10s exposure, C Filter
(38 to 55 UCAC2 stars solution)
Date (UT) Star RA (epoch 2000) Dec (epoch 2000)
2006-08-05 22:57 Barnard's, HIP 97937 17h 57m 48.09s +/-0.01s +04d 42m 44.11s +/-0.09s
Errors bars at +/-1 SD

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SS Cyg - Variable Star

Measurements made in B, V, R filters as part of ongoing study on variable behavior of this dwarf nova.

SS Cyg (Cygnus)

SS Cyg variation between 2006-05-24 and 2006-08-05 
 

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Selected SKIFF Standard Stars  

Series of  images of selected SKIFF standard stars taken through B,V,R & I filters for photometric analysis. 

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NGC 7790 - Open Cluster / Standard Star Field

Set of images of NGC 7790 acquired through C, B, V, R & I filters and later analysed as part of a photometry project.

NGC 7790 (Cassiopeia)

CCD Image
3 x 30s exposure (average exposure), 2x2 binning, C Filter 
2006-08-06 00:10hUT (#132142-48)

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Maffei 2 - Galaxy through Infrared Filter

Maffei 2 is a galaxy lying in the plane of the Milky Way and is largely obscured by dust.  
Two sets of images of Maffei 2  were acquired (one set through Visual (V) and on set through Infrared (I) filter). These showed that the galaxy was visible in infrared , whilst at the same time practically invisible in visual band. 

Maffei 2 / UGCA 39(Cassiopeia)

Maffei 2 in V band (visual) Maffei 2 in I band (infrared)

 

CCD Image
5 x 2 minutes (average combine), 2x2 binning, V Filter 
2006-08-06 00:36 hUT (#132159-63)
CCD Image
5 x 2 minutes (average combine), 2x2 binning, I Filter 
2006-08-06 00:25 hUT (#132154-58)

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R CrB - Variable Star

Series of images of R CrB taken through B, V, R & I bands. 

R CrB (Corona Borealis)

Annotated CCD Image
3 x 30s exposure (average combine), 2x2 binning, C Filter 
2006-06-15 01:21 hUT (#128092-94)

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U And - Mira variable

U And (Andromeda)

U And is a mira variable with catalog period of 346.55 days 
and magnitude range of +8.9 to +15.0.

Baseline images were acquired in C, B, V, R & I filters
Magnitude of U And is estimated at +13.9 (V band) & +11.4 (R Band) 
(using the comparison star technique)

 
(V) : U And (GSC 2804:1144)
(C) : GSC 2804:661 / SAO 37066  
(Bt: 9.68, Vt 8.50)
(K) : GSC 2804:1787

 

Annotated CCD Image
20s exposure, 2x2 binning, C Filter 
2006-08-06 01:08 hUT (#132203)
 

 

 The deep red colour of U And (top right) is indicated by very noticeable differences 
in its apparent brightness in images taken in B, V, R and I Bands
( Notice how U And is almost invisible in B band (Blue), whilst 
it is as bright as the check star in I band (Infrared). )
measured B-V index  : 1.66 
measured R-V index : 2.50

  Composite CCD Image (2x2 binning)

60s exposure, B Filter (#132225)
3
0s exposure, R Filter (#132227)
30s exposure, Filter (#132226)
3
0s exposure, I Filter (#132228)

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W And - Mira variable

W And (Andromeda)

W And is a Mira variable with catalog period of 395.93 days 
and magnitude range of +6.7 to +14.6.

Baselines images were acquired in C, B, V, R & I filters
A magnitude of +7.5 (V band) is estimated for W And 
using the comparison star technique. 

 
(V) : W And (GSC 2842:951 / HIP 10687)
(C) : GSC 2842:1765  (Bt: 11.65, Vt 9.71)
(K) : GSC 2842:739

 

Annotated CCD Image
3 x 20s exposure, 2x2 binning, C Filter 
2006-07-23 22:36 hUT (#131027-29)
 

  

 The comparative brightness of W And in Infrared band is 
shown in the following pair of images

 V (Visual) Band

I (Infrared) Band

 

Annotated CCD Image
10s exposure, 2x2 binning, V Filter 
2006-08-06 22:36 hUT (#132241)
 
Annotated CCD Image
10s exposure, 2x2 binning, I Filter 
2006-08-06 22:36 hUT (#132241)
 

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EZ And - Mira variable

EZ And (Andromeda)

EZ And is a mira variable with catalog period of 275 days 
and magnitude range of +13.2 to < +15
.
Baseline Images were acquired in C, B, V, R & I filters

A magnitude of +11.0 (C band) &  +12.2 (V Band) is estimated for EZ And, suggesting
star is brighter than catalog magnitude, however colour dependance has not been 
taken into account in method used.

 
Annotated CCD Image
20s exposure, 2x2 binning, C Filter 
2006-08-06 01:36 hUT (#132245)
 

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Algol - Binary Eclipsing Variable Star

Test measurements of Algol made in B & V  filters as part of planned future study of this star.

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HD 209458 (Osiris) - Star with Extra-Solar Planet

Sequence of images of HD 209458 taken through C, B & V filters that successfully tested an enhancement to my automated image acquisition software.
(exosolar planet project).

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NGC 6934 - Globular Cluster

NGC 6934 / Caldwell 47  (Delphinus)
CCD Image 
3 x 60 sec exposure (average), 2x2 binning, clear filter
2006-08-06  02:25 h UT (#132339-41)

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NGC 7006 - Globular Cluster

NGC 7006  (Delphinus)
CCD Image 
3 x 30 sec exposure (average), 2x2 binning, clear filter
2006-08-06  02:30 h UT (#132345-47)

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AXP Monitoring (4U 0142+615 & 1E 2259+586)

Two Anomalous X-ray pulsers (AXPs),  4U 0142+615 and  1E 2259+586 (both lying in Cassiopeia) were checked for brightening. No indication of activity was observed at location of either AXP.   [AXP stars project

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HD 5501 - Suspected Binary Eclipsing Variable

Measurements made in B, V, R filters as part of ongoing study on variable behavior of this suspected eclipsing variable..

HD 5501 (Cassiopeia)

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This Web Page: CCD Images - Session 132 (2006-08-05)
Last Updated : 2006-10-17
Site Owner : David Richards
Home Page : David's Astronomy Web Site