RX And (Andromeda)
Variable Type UGZ

RX And - Reference Stars

TT Ari (Aries)

TT Ari with several distant galaxies
(PGC catalog mags +16.0 to +17.3)

TT Ari - Reference Stars

R CrB (Corona Borealis)

R CrB  - Normal Bright State (2006-06-15)

R CrB  - Low State (2008-05-02)

CI Cyg (Cygnus) 

 Annotated CCD Image 
3 x 20s exposure (average combine), 2x2 binning, C filter,  
2008-09-27 22:02h UT (#306171-79)

S Cyg (Cygnus)

S Cyg is a mira variable with catalog period of 322.93 days 
and magnitude range of +9.3 to +16.0.

Images are too be collected regularly in B, V, R & I filters. 
(Image collection began in Oct 2007)

Annotated CCD Image
3 x 20s exposure (average combine), 2x2 binning, C Filter 
2007-10-19 21:15 hUT (#222147-49) 

S Cyg - Reference Stars Used

Annotated CCD Image
30s exposure, 2x2 binning, V Filter 
2007-10-19 21:20 hUT (#222153) 

 

		S Cyg & Reference Star details
(V) :		S Cyg
(C) :		HD 239319	(Bt: 10.37, Vt 9.30) Comparison star B,V,R & I magnitudes based on Arne Henden  equations which provide BVRI estimates from Bt,Vt values
(K) :		HD 239321	(Bt: 10.73, Vt 9.21)

SS Her (Hercules)

Baseline image of SS Her recorded in CBVRI filters
SS Her has a relatively short catalog period (107 days), and 
a catalog magnitude variation of +8.5 to +13.5

Annotated CCD Image
30s exposure, 2x2 binning, C Filter 
2008-01-12 06:28 hUT (#252740) 

SS Her - Reference Stars
Image showing SS Her with comparison and check stars

Annotated CCD Image
30s exposure, 2x2 binning, V Filter 
2008-01-12 06:31 hUT (#252742)

U Her (Hercules)

U Her is a mira variable with catalog period of 406.1 days and magnitude range of +6.4 to +13.4.
Images are being collected regularly in B, V, R & I filters. More than 1 year worth of data has now been acquired/
(Collection of BV data began in Jul 2007, whilst RI data collection began in Sep 2007).

U Her (Hercules),  
Image showing U Her with comparison and check stars

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

RZ LMi (Leo Minor) 
RZ LMi is an ER UMa type star. These stars typically spend a third 
of their time in superoutburst with a supercycle of 20-50 days. Outside of superoutburst 
they typically pack in a rapid succession of normal outbursts, showing one every ~ 4 days

RZ LMi is the star with the shortest known supercycle, spending 
half its time in superoutburst and has time for only two normal outbursts in between.

Estimated magnitude of RZ LMi in following image is +16.5
which indicates a brightness lying between outbursts)

CY Lyr (Lyra)
CY Lyr is a dwarf nova varying between +13.2 to + 17.0 mag 

CY Lyr - Reference Stars 
Dwarf Nova CY Lyr can be easily seen as mag +13.2 star
( The Mag Limit of image is ~ +15 and thus 
180s exposures will be better in future 
to spot CY Lyr at minimum,+17 )

CN Ori (Orion)

CN Ori - reference stars

FU Ori (Orion)

GK Per (Perseus) 
GK Per is star which had a nova eruption in 1901, and 
undergoes occasional minor outbursts since then.
It is reported to have begun a new outburst (Sept 2008)

Images collected in VR filters

 Annotated CCD Image 
3 x 30s exposure (average combine), 2x2 binning, V filter,  
2008-09-28 20:44h UT (#307056-60

ER UMa (Ursa Major) 
ER UMa is the prototype ER UMa type star. These stars typically spend a third 
of their time in superoutburst with a supercycle of 20-50 days. Outside of superoutburst 
they typically pack in a rapid succession of normal outbursts, showing one every ~ 4 days