P/2008 O2 (McNaught) and Main Belt Asteroid (410928) Maidbronn
Only through the collaboration
between many observers of the world, the orbits of Minor Planets and Comets can
be secured.
To be a small part of this global net work of astromomers and amateurs makes me very
happy and proud.
Behind every discovery or
recovery of an object in space is standing an exiting story.
But the most important part of these extraordinary stories is the collaboration
in friendship with like-minded guys around the world.
When blinking a series of images I found two "new" objects on the side of the comet: MAID01 and MAID02 GIF Animation
MAID01 (K09SH2G) is a recovery: 2009
SG172 = 2003 UD373 = 2006 AE103.
See:
MPC 2009-T01
MAID02 (K09SO2T) is a new object and . MAID02
=
2006 BN60 = 2009 ST242 =
(410928)
Maidbronn.
� 2009-09-28 by Bernhard Haeusler, Maidbronn, Germany frozen on comet, stars and new objects
24 x 5 min. exposure,
2009-09-28 UT 01:52 to 03:46, 12" SCT
f-6.532 + CCD ST10XME
19.04 mag, coma: 12", tail: 46" in PA 239�
Antonio Garrig�s
S�nchez (B37) confirmed the asteroids at
September, 30 2009. Thanks a lot for this
fine work!
Also thanks to
Josep M.
Bosch (B74), the discoverer of the Apollo Asteroid and Near Earth Object (NEO)
2009 ST19,
who helped to make the contact to Antonio.
Pre-discovery image of MAID02 at September, 26 2009
The comet and the two asteroids in their orbital situation at
September, 28 2009.
All objects almost in line.
Astrometry of all moving objects on the image:
MPC observation: computed with Astrometrica
COD B82
OBS Bernhard Haeusler
TEL 0.30-m Schmidt-Cassegrain + CCD
NET CMC-14
MAID01 C2009 09 28.07653 00 56 00.90 +16 36 46.5 19.0 R B82
MAID01 C2009 09 28.09095 00 56 00.28 +16 36 42.1 19.4 R B82
MAID01 C2009 09 28.10523 00 55 59.67 +16 36 37.3 19.4 R B82
MAID01 C2009 09 28.11953 00 55 58.98 +16 36 32.6 19.9 R B82
MAID02 C2009 09 28.07653 00 56 10.80 +16 35 02.5 19.7 R B82
MAID02 C2009 09 28.09095 00 56 10.19 +16 35 02.5 20.1 R B82
MAID02 C2009 09 28.11953 00 56 08.60 +16 35 00.6 19.6 R B82
PK08O020 C2009 09 28.07653 00 55 41.79 +16 32 40.0 19.1 N B82
PK08O020 C2009 09 28.11953 00 55 40.19 +16 32 35.9 18.9 N B82
PK08O020 C2009 09 28.13382 00 55 39.54 +16 32 32.8 18.8 N B82
COD B37
OBS Antonio
Garrigos Sanchez,Turruchel G.,Carlota G.
MEA Antonio Garrigos Sanchez
TEL 0.51-mf/4 Newtonian reflector + CCD
ACK MPCReport file updated 2009.09.30 03:21:04
NET CMC-14
MAID01
C2009 09 29.97648 00 54 40.45 +16 27 08.6 19.0 R B37
MAID01 C2009 09 30.03759 00 54 37.74 +16 26 49.3 19.2 R B37
MAID01 C2009 09 30.08448 00 54 35.68 +16 26 34.9 18.6 R B37
MAID02
C2009 09 29.97648 00 54 34.16 +16 31 56.1 19.6 R B37
MAID02 C2009 09 30.03759 00 54 30.88 +16 31 49.6 19.6 R B37
MAID02 C2009 09 30.08448 00 54 28.53 +16 31 46.0 18.9 R B37
PK08O020
C2009 09 29.97648 00 54 30.80 +16 29 07.5 18.7 N B37
PK08O020 C2009 09 30.03759 00 54 28.46 +16 29
00.5 19.4 N B37
PK08O020 C2009 09 30.08448 00 54 26.72 +16 28 55.4 18.8 N B37
Photometry of the comet:
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 28/09/2009 02:52:05 19.04 18.48 18.04 17.85 17.72 17.53 4.1 18.9 B82
P/2008 O2 28/09/2009 02:52:05* 0.27 0.45 0.40 0.46 0.65 0.73 7 4.2 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