Home of the The Hall of Ma'at on the Internet
Home
Discussion Forums
Papers
Authors
Web Links

May 5, 2024, 9:40 pm UTC    
August 23, 2001 10:15AM
<HTML>If you let me know (by email if you want to be certain that I see the request) the date for which you want them I can give you the separations and position angles. (I use GUIDE, which is acknowledged as being one of the best, if not the best, for astrometry.)

I would advise against using photographs for critical measurement, unless you know that they are orthoscopic – most exhibit some 'pincushion' distortion. Similarly, using screenshots from computer software has inherent problems. As you probably know, a computer screen can easily distort an image. You also have the problem of distortion used in the projection from which the screen is generated – the stereographic projection that most astro programs use by default is conformal (i.e. maintains shape) but is not equidistant (i.e. it distorts scale). This is the reason behind my appeal for survey data.

HTH
S</HTML>
Subject Author Posted

Ishmael's Alignment?

Greg Reeder August 22, 2001 07:41PM

Re: Ishmael's Alignment?

John Wall August 23, 2001 06:08AM

Re: Ishmael's Alignment?

ISHMAEL August 23, 2001 08:19AM

Re: Ishmael's Alignment?

John Wall August 23, 2001 04:49PM

Re: Ishmael's Alignment?

ISHMAEL August 23, 2001 08:17AM

Re: Ishmael's Alignment?

Greg Reeder August 23, 2001 08:35AM

Re: Orion's Belt Stars?

Greg Reeder August 23, 2001 08:41AM

Re: Orion's Belt Stars?

Katherine Reece August 23, 2001 09:05AM

Re: Orion's Belt Stars?

Greg Reeder August 23, 2001 09:45AM

Re: Orion's Belt Stars?

ISHMAEL August 23, 2001 09:06AM

Re: Orion's Belt Stars?

Greg Reeder August 23, 2001 10:17AM

Re: Orion's Belt Stars?

Stephen Tonkin August 23, 2001 10:15AM

Re: Orion's Belt Stars?

Greg Reeder August 23, 2001 10:21AM

Re: Orion's Belt Stars?

ISHMAEL August 23, 2001 11:27AM

Re: Orion's Belt Stars?

Stephen Tonkin August 24, 2001 01:51AM

Re: Orion's Belt Stars?

John Wall August 24, 2001 05:26AM

Re: Orion's Belt Stars?

Stephen Tonkin August 24, 2001 06:22AM

Re: Orion's Belt Stars?

Dave Moore August 24, 2001 07:17AM

Re: Orion's Belt Stars?

Stephen Tonkin August 23, 2001 11:37AM

Re: Orion's Belt Stars? (Corrected URL!!!)

Stephen Tonkin August 23, 2001 11:42AM

Re: Orion's Belt Stars? (Corrected (again)URL!!!)

Stephen Tonkin August 23, 2001 11:46AM

Re: Orion's Belt Stars? (Corrected (again)URL!!!)

Katherine Reece August 23, 2001 12:05PM

Re: Orion's Belt Stars? (Corrected (again)URL!!!)

Stephen Tonkin August 23, 2001 01:43PM

Re: Orion's Belt Stars?

lone August 24, 2001 01:14AM

Nice discussion

Anthony August 23, 2001 10:01AM

Re: Nice discussion

Katherine Reece August 23, 2001 10:25AM

Re: Nice discussion

ISHMAEL August 23, 2001 11:29AM

Trying....

Katherine Reece August 23, 2001 11:38AM

Re: Trying....

ISHMAEL August 23, 2001 11:57AM

Logical monkey wrench...

Anthony August 23, 2001 12:11PM

Re: Logical monkey wrench...

Greg Reeder August 23, 2001 12:25PM

Menkaure is NOT FINISHED!

Anthony August 23, 2001 12:31PM

Re: Menkaure is NOT FINISHED!

Greg Reeder August 23, 2001 12:54PM

Re: Menkaure is NOT FINISHED!

Anthony August 23, 2001 01:01PM

Re: Menkaure is NOT FINISHED!

Anthony August 23, 2001 01:04PM

Re: Menkaure is NOT FINISHED!

Greg Reeder August 23, 2001 01:22PM

Re: Menkaure is NOT FINISHED!

Anthony August 23, 2001 01:34PM

Re: Menkaure is NOT FINISHED!

John Wall August 23, 2001 05:02PM

Re: Menkaure is NOT FINISHED!

ISHMAEL August 23, 2001 02:47PM

Re: Menkaure is NOT FINISHED!

Anthony August 23, 2001 02:51PM

Re: Menkaure is NOT FINISHED!

Greg Reeder August 23, 2001 03:07PM

Re: Menkaure is NOT FINISHED!

ISHMAEL August 23, 2001 03:31PM



Sorry, only registered users may post in this forum.

Click here to login