comet – Page 2 – Crayford Manor House Astronomical Society Dartford

A great image capturing Comet C/2023 A3 (Tsuchinshan–ATLAS) by member Jim Burchell from Swanley.
Jim said ''I took this image on the evening of 15th of May when the Comet was in the constellation of Virgo with my Seestar S50. As you see the Comet is showing a small tail....''

C/2023 A3 (Tsuchinshan–ATLAS) is a comet from the Oort cloud and was discovered by the Purple Mountain Observatory in China on 9 January 2023 and independently found by ATLAS South Africa on 22 February 2023.

Jim was the 1st member of CMHASD to image the comet - Well done Jim!

Image acquired using a Seestar S50: 48 X 10 second stacked images.

AstroImageJ Demonstration

3rd January 2020

| No Comments

| Webmaster

| 11:55 am

[et_pb_section fb_built="1" _builder_version="4.0.6" global_colors_info="{}"][et_pb_row _builder_version="4.0.6" global_colors_info="{}"][et_pb_column type="4_4" _builder_version="4.0.6" global_colors_info="{}"][et_pb_text _builder_version="4.0.6" global_colors_info="{}"]

We had an informal meeting over Christmas where Martin took the members through using AstroImageJ (AIJ) he covered the following...

Loading an image
analysing stars in an image
plate solving an image
batch processing images to calibrate them
aligning and stacking images
photometry on a sequence of images

[caption id="" align="aligncenter" width="800"] MartinExplaininghow-to-us-astroimagej Martin Demonstrating AstroImageJ[/caption]

Final image.

[caption id="" align="aligncenter" width="670"] C2017T2_20191201_2149 Comet C/2017 T2 20191201 21:49 Simon Dawes[/caption]

[/et_pb_text][/et_pb_column][/et_pb_row][/et_pb_section]

Comet panSTARRS c/2011 L4

6th July 2018

| No Comments

| Webmaster

| 8:49 am

[et_pb_section bb_built="1"][et_pb_row][et_pb_column type="4_4"][et_pb_text admin_label="pannStarrs Text" _builder_version="3.9"]

We will be attempting to observe Comet PanSTARRS C/2011 L4 on the 12th March 2013 at the Pavilion. The comet will be 11 degrees above the horizon at 19:00, close to Uranus; the Sun - according to StaryNight pro 4.5 sets at 19:00 so we will want to set up any equipment before sunset.

This will be a challenging observation, the comet is predicted to be close to its brightest but it will be in bright twilight
CAUTION SUN MUST HAVE SET BEFORE YOU USE YOUR BINOCULARS

panstarrsC-2011_L4

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row][et_pb_column type="1_3"][et_pb_text admin_label="image" _builder_version="3.9"]

[/et_pb_text][/et_pb_column][et_pb_column type="2_3"][et_pb_text _builder_version="3.9"]

Stack of 33 images ED80 Canon 600D

Image by Martin Crow

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row][et_pb_column type="1_3"][et_pb_text admin_label="image" _builder_version="3.9"]

[/et_pb_text][/et_pb_column][et_pb_column type="2_3"][et_pb_text _builder_version="3.9"]

30s exposure Canon 650D Comet is just below centre of image. Image taken at the BAA Winchester Weekend.

Image by Simon Dawes

[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row][et_pb_column type="1_3"][et_pb_text admin_label="image" _builder_version="3.9"]

[/et_pb_text][/et_pb_column][et_pb_column type="2_3"][et_pb_text _builder_version="3.9"]

2013-03-14 Just south of Cahors in France. 200mm lens f5.6 1s exposure ISO 1250

Image by Arthur Cockburn

[/et_pb_text][/et_pb_column][/et_pb_row][/et_pb_section]

Tag: comet

Comet C/2023 A3 (Tsuchinshan–ATLAS) by member Jim Burchell – 15th May 2024

AstroImageJ Demonstration

Comet panSTARRS c/2011 L4