Comet Garradd position?

[gregbradley]

I tried imaging Comet Garradd last night as I knew it was near M15.
But I don't think I found it. I imaged a galaxy that looked like it might be a comet!

Does anyone know the current RA and Dec of the comet?

Greg.

[gregbradley]

I think I answered my own question.

Here is a link:

http://www.ast.cam.ac.uk/~jds/09p1.uk

Greg.

[mithrandir]

http://ssd.jpl.nasa.gov/horizons.cgi#top

Current Settings

Ephemeris Type [change] : OBSERVER
Target Body [change] : Comet C/2009 P1 (Garradd)
Observer Location [change] : Geocentric [500]
Time Span [change] : Start=2011-08-04, Stop=2011-08-14, Step=1 d
Table Settings [change] : defaults
Display/Output [change] : plain text

Ephemeris

*********************************** *********************************** *********************************** *****
Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC T-mag N-mag delta deldot S-O-T /r S-T-O
*********************************** *********************************** *********************************** *****
$$SOE
2011-Aug-04 00:00 21 26 22.17 +13 14 58.7 9.15 12.09 1.50364531185998 -20.4520217 148.3178 /L 12.6909
2011-Aug-05 00:00 21 22 47.95 +13 34 23.9 9.12 12.06 1.49212644319200 -19.4326429 148.6665 /L 12.6114
2011-Aug-06 00:00 21 19 09.65 +13 53 36.1 9.09 12.04 1.48120055458583 -18.3989132 148.9210 /L 12.5655
2011-Aug-07 00:00 21 15 27.42 +14 12 33.5 9.06 12.01 1.47087555473186 -17.3521519 149.0769 /L 12.5556
2011-Aug-08 00:00 21 11 41.43 +14 31 14.2 9.03 11.99 1.46115858042285 -16.2937127 149.1304 /L 12.5837
2011-Aug-09 00:00 21 07 51.87 +14 49 36.4 9.00 11.97 1.45205597549600 -15.2249883 149.0792 /T 12.6510
2011-Aug-10 00:00 21 03 58.93 +15 07 38.1 8.97 11.95 1.44357326706331 -14.1474150 148.9220 /T 12.7586
2011-Aug-11 00:00 21 00 02.84 +15 25 17.5 8.94 11.94 1.43571513855345 -13.0624787 148.6590 /T 12.9066
2011-Aug-12 00:00 20 56 03.83 +15 42 32.7 8.92 11.92 1.42848539978928 -11.9717191 148.2916 /T 13.0948
2011-Aug-13 00:00 20 52 02.15 +15 59 22.0 8.89 11.91 1.42188695463137 -10.8767339 147.8222 /T 13.3222
2011-Aug-14 00:00 20 47 58.06 +16 15 43.5 8.87 11.90 1.41592176701413 -9.7791803 147.2547 /T 13.5874
$$EOE
*********************************** *********************************** *********************************** *****
or for Stellarium


[Garradd_C2009_P1]
# Data taken from JPL/HORIZONS
# correct for the specified time frame:
# Start Time : A.D. 2011-Aug-04 00:00:00.0000 UT
# Stop Time : A.D. 2011-Aug-04 00:00:00.0000 UT
name = Comet Garradd (C/2009 P1)
parent = Sun
coord_func = comet_orbit
radius = 10
oblateness = 0.0
albedo = 1
lighting = true
halo = true
color = 1.0,1.0,1.0
tex_halo = star16x16.png
tex_map = nomap.png
orbit_Epoch =
2011-Aug-04 00:00:00.000 21 26 22.17 +13 14 58.7 9.15 12.09 1.50364531185998 -20.4520217 148.3178 /L 12.6909

orbit_TimeAtPericenter = 2011
orbit_PericenterDistance = 2011
orbit_Eccentricity = 2011
orbit_ArgOfPericenter = 2011
orbit_AscendingNode = 2011
orbit_Inclination = 2011

# use M1 and k1 for the total magnitude of comets
# absolute_magnitude = M1 brightness when 1 AU from sun and 1 AU from earth
# slope_parameter = 0.4*k1 rate of brightening when approaching the sun
type = comet
absolute_magnitude = 4.8
slope_parameter = 3.6

[gregbradley]

I tried that position for the 4th of Aug and didn't pick up anything.

Hmmm. I wonder where it is.

Greg.

[jjjnettie]

I took my image of Garrad in the wee hours of this morning.
http://www.iceinspace.com.au/forum/showthread.php?t=78957
It stood out very well in my framing shots of 10sec @ iso6400.