Active Galactic Nuclei   :   CCD and visual observations


The files with CCD observations of Active Galactic Nuclei include the following header: NAME - object name, VAR - coordinates, brightness range, type of object and reference; OBS - observers name, observing site and instrument type (diameter, focal ratio, type and specification of the CCD camera); RED - software used for processing of CCD frames; NOTE - date of observation and a list of frame numbers and exposure times for each standard filter; reference of photometry field (sequence, name of paper, authors) and a list of comparison stars (identifications, coordinates and BVRcIc brightness). Photometric data contain differential instrumental magnitudes in format: JD V-C s1 V-C1 s2 V-C2 s3 C-C1 s4 C-C2 s5 C1-C2 s6, ... where JD - Julian Date, V - variable, C - main comparison star, C1 - first check star, C2 -second check star, ... and s - standard deviations of all measurements). These data files were subsequently transformed to absolute instrumental magnitudes or standard magnitudes in Johnson-Cousins BVRcIc system. Data format is SPHE-MEDUZA: NAME JD MAG DATE OBS ERR CMP-STAR FLT where NAME- object name, JD - Julian Date, MAG - absolute instrumental or standard magnitude, DATE - date UT YYYY-MM-DD.DDD, OBS - an abbreviation of observers name, ERR - standard deviation of the measurement, CMP-STAR - description of comparison star (identification - e.g. GSC, USNO number, and standard brightness BVRcIc), FLT - detector and filter used (e.g. CCD+V), and abbreviation STD when measurement is in standard system.

The files with visual observations of Active Galactic Nuclei include a header with object name, a reference to charts and sequence of comparison stars. Visual data have following format: JD DATE ESTIMATES MAG. AP.T F/ PWR SITE OBS where JD - Julian Date, DATE - date UT YYYY-MM-DD.DDD, ESTIMATES - estimates, MAG - visual magnitude, AP - telescope aperture (cm), T - telescope type (R - refractor, L - newton reflector, C - cassegrain), F/ - focal ratio, PWR - magnification, SITE - observing site and OBS - abbreviation of observer's name.

CCD and visual observations have been published in the MEDUZA database of Variable Star and Exoplanet Section of Czech Astronomical Society.



CCD observations

  • 3C 66 And
       62 observations from 29th September 2011 to 07th September 2013 (5 nights)
       photometry differential-instrumental B_17 (11) V_17 (17) R_17 (17) I_17 (17) observations (5 nights)
       photometry standard B_17 (11) V_17 (17) R_17 (17) I_17 (17) observations (5 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)

  • 3C 66A And
       64 observations from 29th September 2011 to 07th September (5 nights)
       photometry differential-instrumental B_17 (15) V_17 (15) R_17 (17) I_17 (17) observations (5 nights)
       photometry standard B_17 (15) V_17 (15) R_17 (17) I_17 (17) observations (5 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)

  • OJ 287 Cnc
       184 observations from 31st December 2000 to 16th February 2001 (4 nights)
       photometry differential-instrumental V_203 (184) observations (4 nights)
       photometry absolute-instrumental V_203 (184) observations (4 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.25-m f/5 reflector + CCD ST5C; field of view 8'.8 x 6'.6)

  • NGC 4151 CVn
       1369 observations from 06th February 2011 to 14th May 2015 (68 nights)
       photometry differential-instrumental B_343 (337) V_343 (341) R_349 (348) I_343 (343) observations (70 nights)
       photometry standard B_343 (337) V_343 (341) R_349 (348) I_343 (343) observations (70 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)

  • MKN 501 Her
       204 observations from 05th July 2011 to 28th July 2013 (11 nights)
       photometry differential-instrumental B_51 (51) V_51 (51) R_51 (51) I_51 (51) observations (11 nights)
       photometry standard B_51 (51) V_51 (51) R_51 (51) I_51 (51) observations (11 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)

  • NGC 7469 Peg
       260 observations from 27th November 2010 to 09th January 2014 (13 nights)
       photometry differential-instrumental B_67 (65) V_67 (64) R_67 (66) I_67 (65) observations (13 nights)
       photometry standard B_67 (65) V_67 (64) R_67 (66) I_67 (65) observations (13 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)

  • MKN 421 UMa
       1234 observations from 06th February 2011 to 07th May 2015 (65 nights)
       photometry differential-instrumental B_315 (305) V_315 (305) R_315 (312) I_315 (312) observations (67 nights)
       photometry standard B_315 (305) V_315 (305) R_315 (312) I_315 (312) observations (67 nights) - data format SPHE-MEDUZA
       chart cmp-doroshenko (0.40-m f/5 reflector + CCD G2-1600; field of view 24'.1 x 16'.1)




    visual observations

  • 3C 66A And
        12 observations from 24th September 2011 to 26th January 2014   /   data

  • NGC 4151 CVn
        445 observations from 10th April 1993 to 03rd June 2017   /   data   /   lightcurve   /

  • MARKARIAN 501 Her
        66 observations from 27th June 2011 to 01st November 2013   /   data

  • BL Lac
        36 observations from 27th June 2011 to 26th January 2014   /   data

  • NGC 7469 Peg
        238 observations from 22nd December 1996 to 31st August 2017   /   data   /   lightcurve   /

  • MARKARIAN 421 UMa
        267 observations from 09th March 1996 to 03rd June 2017   /   data   /   lightcurve   /





    Martin Lehký / makalaki@astro.sci.muni.cz / Hradec Králové / Czech Republic
    created 20th February 1997 / update 01st September 2017