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Astrophotography

Asteroid (710) Gertrud
Author Last Post
5/21/2017 7:52 PM

It works Looks good
Dave

---------- Original Message ----------
From: "Astrophotography" <astrophotography@centexastronomy.org>
To: "jde209@netzero.net" <jde209@netzero.net>
Subject: re: Asteroid (710) Gertrud <<$173019812537$>>
Date: Sat, 20 May 2017 03:43:18 -0500




This is with the Chrome browser to see if it works.

Willie

Attachment(s):
File: 710_Gertrud-d-001-wcs.jpg (495.9 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1730198_0_710_Gertrud-d-001-wcs.jpg
5/20/2017 3:41 AM
So Jeff. It appears that Mac users should use Chrome to send images to the forum and PNG files work fine.

Willie
5/20/2017 3:39 AM
From SkySafari 5

(710) Gertrud is a 14th magnitude Asteroid appearing in the constellation Libra. It orbits the sun every 5.5 years at an average distance of 3.1 AU. It is a main belt asteroid which orbits the Sun between Mars and Jupiter.

(710) Gertrud, a small asteroid, is roughly 27 kilometers across.


More info in the attached screenshot.
5/20/2017 3:34 AM
This is with the Chrome browser to see if it works.

Willie
5/20/2017 3:32 AM
Lets see if it will let me attach a higher resolution image.

Willie
5/20/2017 3:28 AM
Aaarrrgh!  One more time.  It is a 496 kb file, shouldn’t be a problem.

Willie



On May 20, 2017, at 3:23 AM, Astrophotography <astrophotography@centexastronomy.org> wrote:




Well the attachment didn't show up.  I think it is because the Club Express system can't handle PNGs.  I will try again with a jpg version.

Willie


~~~ Start Quote ~~~
I took 5 x 300s luminance of this field with the same setup as the V2 Johnson images.  SkySafari 5 indicated that the asteroid should be in there.  I just wanted to see if I could identify it with 5 minute exposures.  The sequence started at 10:24:10 pm CDT.  SkySafari 5 says it was 14.7 magnitude at that time and 255.1 million km distant, 14.18 light minutes.

This is a screenshot of the AstroImageJ display of only the first image after adding the World Coordinate System using AIJ so that objects could be identified by J2000 RA & Dec.  The displayed RA & Dec are for the asteroid if I remember correctly.

Willie
~~~ End Quote ~~~


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5/20/2017 3:21 AM
Well the attachment didn't show up. I think it is because the Club Express system can't handle PNGs. I will try again with a jpg version.

Willie


Quoted Text
I took 5 x 300s luminance of this field with the same setup as the V2 Johnson images. SkySafari 5 indicated that the asteroid should be in there. I just wanted to see if I could identify it with 5 minute exposures. The sequence started at 10:24:10 pm CDT. SkySafari 5 says it was 14.7 magnitude at that time and 255.1 million km distant, 14.18 light minutes.

This is a screenshot of the AstroImageJ display of only the first image after adding the World Coordinate System using AIJ so that objects could be identified by J2000 RA & Dec. The displayed RA & Dec are for the asteroid if I remember correctly.

Willie
5/20/2017 3:18 AM
I took 5 x 300s luminance of this field with the same setup as the V2 Johnson images. SkySafari 5 indicated that the asteroid should be in there. I just wanted to see if I could identify it with 5 minute exposures. The sequence started at 10:24:10 pm CDT. SkySafari 5 says it was 14.7 magnitude at that time and 255.1 million km distant, 14.18 light minutes.

This is a screenshot of the AstroImageJ display of only the first image after adding the World Coordinate System using AIJ so that objects could be identified by J2000 RA & Dec. The displayed RA & Dec are for the asteroid if I remember correctly.

Willie
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