C/2022 E3 (ZTF) 2022-Dec-24 Dan Bartlett

Full resolution downloadable versions can be found herehttps://astrob.in/vi1m33/B/

A very active comet as you can see in my Six second video found here https://youtu.be/VRu3TS3MKLY. As an attempt to prevent much of the blurring of the cometary structure in the 66x90 second subs, I grouped the subs into about 15 minutes each and combined using PixInsight. Comparing to a total integration stack the efforts seem worthwhile, however the comet doesn't appear as bright!

I've managed to image the comet the following morning (not yet published), with all variables similar, however the comet doesn't appear as lively(can you say sky conditions) and the ionic tail structure is smoother.

This image of C/2022 E3 ZTF seems to me to be unrealistic as the brightness of the ionic tail appearing much brighter than predicted. I haven't applied any unbalanced efforts to achieve this. Comets present their own idea of visual appearance to the imager and I'll have to accept the oddities involved.

Observational details:
Backyard setup
scope: C11 RASA D = 279mm; fl =618mm; F# 2.2
camera: asi 2600mcP
exposure: 66 x90 sec
Seeing: 4/5
Transparency: 9/10
Observer: DEBartlett
Location: June Lake, California, USA

Both Images Info:
WCS transformation ....... Linear
Projection ............... Gnomonic
Projection origin ........ [1012.981717 1462.008110] px -> [RA: 15 52 40.261 Dec: +29 07 14.79]
Resolution ............... 2.510 arcsec/px
Rotation ................. 2.804 deg
Reference system ......... ICRS
Observation start time ... 2022-12-24 13:45:54 UTC
Observation end time ..... 2022-12-24 13:47:24 UTC
Geodetic coordinates ..... 119 04 46 W 37 46 30 N 2357 m
Focal distance ........... 617.99 mm
Pixel size ............... 7.52 um
Field of view ............ 1d 24' 45.1" x 2d 2' 19.0"
Image center ............. RA: 15 52 40.257 Dec: +29 07 14.81
Image bounds:
top-left .............. RA: 15 56 09.686 Dec: +30 06 04.35
top-right ............. RA: 15 49 38.199 Dec: +30 10 15.54
bottom-left ........... RA: 15 55 38.628 Dec: +28 03 59.03
bottom-right .......... RA: 15 49 14.795 Dec: +28 08 05.32

Photo info

Popular tags

Random image