NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Home made level vial observation results
From: Randall Morrow
Date: 2012 Feb 13, 08:00 -0800
Thanks for catching that error Greg. It was way off but I didn't want to 'whitewash' the result so I included what I felt to be the one embarrassing sight of the group. I like the 0.2 better. I hope my math is better for this next one.
It is not easy to get low altitude sights using a mirror AH but it can be done. Here is an fun result from last night: (IC= +6.4)
Body local time Hs Refraction Ho Hc Intercept
Venus 20-31-44 9*07.8 -10.6 4*26.5 4*25.5 1.0T
I had to stand 30 feet back from the mirror to get this. The printed refraction table does not go this low so I used the NSO refraction figure. Venus was just at the roof line of the house across the street. I had to move to shoot past their chimney.
Randall F Morrow PT
Ergonomics Safety Consultant
Chronic Pain Program
Kaiser Permanente - Kern County - Bakersfield
NOTICE TO RECIPIENT: If you are not the intended recipient of this e-mail, you are prohibited from sharing, copying, or otherwise using or disclosing its contents. If you have received this e-mail in error, please notify the sender immediately by reply e-mail and permanently delete this e-mail and any attachments without reading, forwarding or saving them. Thank you.
Randall,
From: Randall Morrow
Date: 2012 Feb 13, 08:00 -0800
Thanks for catching that error Greg. It was way off but I didn't want to 'whitewash' the result so I included what I felt to be the one embarrassing sight of the group. I like the 0.2 better. I hope my math is better for this next one.
It is not easy to get low altitude sights using a mirror AH but it can be done. Here is an fun result from last night: (IC= +6.4)
Body local time Hs Refraction Ho Hc Intercept
Venus 20-31-44 9*07.8 -10.6 4*26.5 4*25.5 1.0T
I had to stand 30 feet back from the mirror to get this. The printed refraction table does not go this low so I used the NSO refraction figure. Venus was just at the roof line of the house across the street. I had to move to shoot past their chimney.
Randall F Morrow PT
Ergonomics Safety Consultant
Chronic Pain Program
Kaiser Permanente - Kern County - Bakersfield
NOTICE TO RECIPIENT: If you are not the intended recipient of this e-mail, you are prohibited from sharing, copying, or otherwise using or disclosing its contents. If you have received this e-mail in error, please notify the sender immediately by reply e-mail and permanently delete this e-mail and any attachments without reading, forwarding or saving them. Thank you.
| "Greg Rudzinski"
<gregrudzinski@yahoo.com>
Sent by: navlist-bounce@fer3.com 02/10/2012 06:43 PM
|
|
Randall,
If Rigel Hs is 92* 53' + 6.4' I.C. = 92* 59.4' /2 = 46*
29.7' (not 46* 18.2' ?)
I'm getting an intercept of 0.2 away with this number
Greg Rudzinski
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
