Note: There are many comets with the name “McNaught” assigned to them. If you are looking for information on the bright twilight comet visible in January 2007, I have an observation and sketches available here: C/2006 P1 (McNaught). The observation on this page is for C/2005 E2 (McNaught) in January 2006. For detailed information on the 2007 comet, C/2006 P1 (McNaught), see also the Aerith.net site.
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Observation Notes:
I thought it would be nice to catch this comet from a dark site to help make up for its proximity to the horizon at evening twilight. I didn’t count on the zodiacal light. It was massive and bright, and the comet was right in the meat of it. I was surprised to see it at all. Star hopping was tough–lambda aquarii (mag 3.7) was visible naked eye, but Kappa Aquarii (mag 5) was not. Once I got to the correct area, the comet showed up as a very subtle brightening in an already bright field. The core appeared as almost stellar with averted vision. I had to sketch the field and comet quickly to catch it before it sunk behind the hills to the west. As a result, I wasn’t able to capture a second position to note motion. Bill Ferris took a look and confirmed the observation. The visible width of the coma appeared to be about 3-4 minutes in diameter. The background of the sketch has been lightened to represent the bright sky background.
Subject | C/2005 E2 (McNaught) |
Classification | Comet |
Position* | Aquarius [RA: 22:43:54 / Dec: -04:22:27] |
Size | 3′ (rough estimate) |
Brightness* | 9.2 |
Date/Time | January 21, 2006 – 07:45 PM MST (January 22, 2006 – 02:45 UT) |
Observing Loc. | Beaver Creek Trailhead, AZ |
Instrument | Orion SVP 6LT Reflector (150 mm dia./1200 mm F/L) |
Eyepieces/Mag. | 32 mm (37.5X) |
Conditions | Clear, breezy |
Seeing | 3/10 |
Transparency | Mag 4 NELM in vicinity of Aquarius |
*Sources | Orion’s The Sky Software |