2001Q4 NEAT on Oct 23, 2004
| Date & Time: | Oct 23 2004, from 28:19 to 28:25 JST(+0900) |
| Composed 3 shots with 2 minutes exposed |
| Optical: | TAMRON SP f=300mmF2.8 with conversion lens (f=420mm, Aperture: F4.0) |
| Auto-guided with TAKAHASHI EM-200 Equatorial |
| Digital Camera: | Fujifilm FinePix S2 Pro |
| Location: | Koumi town, Nagano pref. |
| Camera Settings: | Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016) |
| CCD Sensitivity...ISO1600, White Balance...Auto |
A reversed and emphasized image of upper one, about 30 arc minutes in length of tail.
This picture shows you a figure of comet 2001Q4 NEAT in Oct 2004, three month later since I have captured in July.
In this day the comet has positioned at 69 degrees in declination, a circumpole, can be observed all night.
The comet has a dimmed coma of 11th magnitude, but has an extraordinary thin and long tail streched toward southwest about 30 arc minutes in length.
(This picture has been trimmed equivalent f=800mm)
