P/2008 O2 (McNaught) and Main Belt Asteroid (410928) Maidbronn


[upwards] [2009st242_20091017] [2009sg172_2009st242_20090930] [p2008o2_20090928] [p2008o2_20090926] [410928 Maidbronn]

Pre-discovery image of MAID02 (K09SO2T), a main belt asteroid and my first discovery. MAID02 = (410928) Maidbronn  see: MPC 2009-T05

P/2008 O2 (McNaught)  by Bernhard Haeusler, Germany

2009-09-26 by Bernhard Haeusler, Maidbronn, Germany                              frozen on comet,  stars and asteroid

24 x 5 min. exposure, 2009-09-26 UT 01:27 to 03:31, 12" SCT  f-6.532 + CCD ST10XME
18.87 mag, coma: 9", tail: 10" in PA 224


  by Bernhard Haeusler, Germany

2009-09-26 by Bernhard Haeusler, Maidbronn, Germany                                                                     frozen on MAID02

24 x 5 min. exposure, 2009-09-26 UT 01:27 to 03:31, 12" SCT  f-6.532 + CCD ST10XME,                


MPC observation: computed with Astrometrica

COD B82
OBS Bernhard Haeusler
TEL 0.30-m Schmidt-Cassegrain + CCD

NET CMC-14

PK08O020 C2009 09 26.06626 00 56 55.63 +16 36 01.8 18.9 N B82
PK08O020 C2009 09 26.08060 00 56 55.27 +16 35 59.8 19.0 N B82
PK08O020 C2009 09 26.09133 00 56 54.87 +16 35 59.3 18.9 N B82
PK08O020 C2009 09 26.10920 00 56 54.23 +16 35 59.7 18.6 N B82
PK08O020 C2009 09 26.14494 00 56 52.88 +16 35 55.5 18.8 N B82


Photometry computed with FOCAS II, using the Multibox method:

COD B82
OBS Bernhard Haeusler
CATALOG: USNO A2.0 / CMC-14 - BAND: R

                                                      10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB  COD
OBJECT        DATE       TIME       +/-       +/-       +/-       +/-       +/-      +/-  N  FWHM  CAT
------------  ---------- --------  -----  -----  -----  -----  -----  -----  ----  ----  ---

P/2008 O2    26/09/2009 02:19:52 18.87 18.32 18.00 17.59 17.10 16.93 4.2 18.8 B82
P/2008 O2    26/09/2009 02:19:52* 0.26 0.35 0.56 0.55 0.41 0.32 8 4.5 CMC

FoCAs II - 07/01/2009-b

FOCAS II is a tool for photometry on the base of data coming from Astrometrica. Focas is basically using the .LOG file of Astrometrica.

Explanation of the FOCAS II table headings:

Object, date and time are self-explaining.
10x10, 20x20 ... 60x60 are the measured magnitudes according to the aperture sizes of photometry in arc sec (rectancle).
SNR is the  Signal-to-noise ratio for aperture photometry (calculator).
SB is the magnitude of the faintest star on the image matching with the used star catalogue. This is not the faintest star of the image!
COD is the MPC Code of the observatory.

second line:
+/- are the precisions of the measurements.
N is the number of the used images for the measurements.
FWHM is the Full-Width Half-Maximum of the total PSF: Measure of the seeing.
CAT is the used star catalog in Astrometrica.

Focas II is using the .log file of Astrometrica and is computing the photometry under different apertures (10x10 ... 60x60).
The graphs are showing the astrometric precision of the images.


links:

http://astrosurf.com/cometas-obs/index_i.htm Visual and CCD Observations and images from the "Cometas Obs" mailing list, using the Focas II format

es.groups.yahoo.com/group/Cometas_Obs The Spanish comet observation group in Yahoo

[upwards] [2009st242_20091017] [2009sg172_2009st242_20090930] [p2008o2_20090928] [p2008o2_20090926] [410928 Maidbronn]

 

Copyright of all sites and images of this web: Bernhard Haeusler, Dettelbach, Germany   IAU code: B82 Maidbronn and K87 Dettelbach Vineyard Observatory