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Variable stars observer DPV

Pavol A. Dubovský

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Telescopes

Telescopes

I used many telescopes for both visual and CCD observing. Following is the list of actual equipment of AO on Kolonica Saddle dedicated to variable stars .

Telescopes for CCD photometry

OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
VNTMainGuideTypical observing program
Aperture/ Focal length [mm]1000 / 9000300 / 1500Intermediate polars
CCD, binningFLI PL 1001E, 2×2WATEC 902H
Chip size [px], pixel size [μm]512 x 512, 48 x 48320 x 240, 5.6 x 5.6
Scale [arcsec/px]1.110.8
FOV [arcmin] 9.47 x 9.474.1 x 3.0
readout noise [e-] / gain [e- per ADU]8.26 / 2.39–
MountFork equatorial without GoTo–
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
C14 – Celestron Edge HD, focal reducer 0.7xMainGuide
Typical observing program
Aperture/ Focal length [mm]356 / 300050 / 300Superhumps of cataclysmic variables,
CCD, binningMII G2-1600, 2×2MII G1-800CMulticolor long term light curves
Chip size [px], pixel size [μm]768 x 512, 18 x 181032 x 778, 4.65 x 4.65
Scale [arcsec/px]1.213.21
FOV [arcmin] 13.4 x 8.955.2 x 41.6
readout noise [e-] / gain [e- per ADU]12 / 2.3–
MountCGE 1400, GoTo–



ZIGA – Dall-Kirkham 16”MainGuideTypical observing program
Aperture/ Focal length [mm]500 / 3454off axisEclipsing binaries W UMa type, multicolor light curves, full phase
CCD, binningMII G4-16000, 2×2MII G1-800C
Chip size [px], pixel size [μm]2048 x 2048, 18 x 181032 x 778, 4.65 x 4.65
Scale [arcsec/px]1.093.21
FOV [arcmin] 36.7 x 36.755.2 x 41.6
readout noise [e-] / gain [e- per ADU]12 / 1.6–
MountParamount–

OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA
PúpavaMainGuideTypical observing program
Aperture/ Focal length [mm]280 / 1500off axisSuperhumps of catalclysmic variables
CCD, binningDSI Pro II, 1×1SXVF-H9, 2×2
Chip size [px], pixel size [μm]748 x 577, 8.6 x 8.31392 x 1040, 6.45 x 6.45
Scale [arcsec/px]1.18 x 1.14–
FOV [arcmin] 14.7 x 10.9–
readout noise [e-] / gain [e- per ADU]12 / 0.7–
MountGerman equatorial without GoTo–

Telescopes for spectroscopy

C11 – Celestron CGEM 1100, focal reducer 0.66x, spectrograph LISAMainGuideTypical observing program
Aperture/ Focal length [mm]280 / 1750off slitBe stars
CCD, binningATIK-460ex, 1×1ATIK-317Symbiotic stars
Chip size [px], pixel size [μm]2450 x 600, 4.54 x 4.54–
Scale [arcsec/px]––
FOV [arcmin] ––
Resolution power1000–
MountCGEM, GoTo–

Telescopes for visual observations

Meade LightBridge 14”, Newton with coma correctorMainFinderTypical observing program
Aperture/ Focal length [mm]405 / 186050 / 300Cataclysmic variables – monitoring for outbursts
Eyepiece Celestron focal length/ FOV26 mm/ 80°–
Eyepiece Televue focal length/ FOV8 mm/ 72°–
MountDobson–


Bibinar – 2 binoculars on common mountSometArtilleryTypical observing program
Aperture x magnification100 x 2560 x 12Semiregular and symbiotic variables – long term light curves
MountAlt-acimuthal––
Newton 300/1500
OLYMPUS DIGITAL CAMERA
Chermelin 30cm Newtonian”MainFinderTypical observing program
Aperture/ Focal length [mm]300 / 150050 / 300Cataclysmic variables – visual monitoring for outbursts
ZOOM Eyepiece focal length24 – 8 mm–The majority of visual estimates was done with this instrument in the observatory in Podbiel village
MountDobson–
Kamenicky 20cm Newtonian”MainFinderTypical observing program
Aperture/ Focal length [mm]200 / 140020 / 150Semiregular and Symbiotics + brighter Cataclysmic variables
ZOOM Eyepiece focal length24 – 8 mm–The first telescope used for regular variable star observing. First light in 1999. Translated to Madeira in 2020.
MountDobson–
Zennox
Newtonian
MainFinderTypical observing program
Aperture/ Focal length [mm]76 / 70010 / 150Semiregular and Symbiotics
Televue Eyepiece focal length/FOV20 mm/ 52°–The first telescope used in Madeira. First light in 2018.
MountDobson–

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