David's Astronomy Pages CCD Images - Session 133 (2006-08-08) Images (S132)   Images Sessions   Home Page   Images (S134)

Lalande 21185 - Nearby star 

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Lalande 21185 / HIP 54035.
(Lalande 21185 Project )

Lalande 21185 / HIP 54035 (Ursa Major) Star system with 9th largest proper motion

Annotated CCD Image (50% size)  7 x 30s (average combine), 1x1 binning, C filter 2006-08-08 21:47h UT (#133011-17)

Astrometry measurement of Lalande 21185  based on 7 images (#133011-17) 1x1 binning, 30s exposure, C Filter

Date/Time (UT) Star RA (epoch 2000) Dec (epoch 2000) 2006-08-08 21:47  Lalande 21185 11h 03m 19.82s +/-0.02s +34d 57m 39.18s +/-0.15s

Average Position, 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 2006-08-08

SS Cyg - Magnitude and Colour Variation between 2006-05-24 and 2006-08-08  Colour Index shows that SS Cyg moves towards the blue end of the spectrum  as it brightens, indicating that the apparent brightening is due to an  increase in temperature, rather than an increase in star diameter.

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61 Cygni - Star (The 'flying star')

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of 61 Cygni.
( 61 Cygni Project )

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Gliese 1245 - Nearby Star System - 14.8 ly

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Gliese 1245
(Gliese 1245 Project )

Gliese 1245 (Cygnus) (Alt Name V1581 Cyg)

Annotated CCD Image (central portion) 7 x 60s (average combine), 1x1 binning, C filter 2006-08-08 22:11h UT (#133043-49) (Full Size Image)

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Ross 248 (HH And) - Nearby Star & Variable Star - 10.3 ly

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Ross 248 (And HH)
(Ross 248 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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TrES-1 - Parent Star to Exosolar Planet

Attempt made to detect transit of exosolar planet TrES-1b across the parent star TrES-1.  Total of 197 Images acquired over  2hr 52m period.  Images are still be analysed to confirm observation of transit. See  (exosolar planet project).

TrES-1 Parent Star (Lyra) ~ 500 light years, distance Planet orbit 3.03 days

Annotated CCD Image  3 x 20s (average combine), C filter) 2006-07-23 23:32h UT (#131124-26)

Note : Discrepancy seen with GSC 2652:1291 (V Band) mag. Catalog +11.2,  Measured Estimate +10.3.  Recommend monitoring for variability

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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  2006-08-09 02:27hUT (#133398-406)

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Groombridge 34 - Nearby Double Star - 11.7 ly

Astrometric measurements made, as part of a ongoing study to attempt to measure proper motion and annual parallax of Groombridge 34 
(Groombridge 34 Project).

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