[AZ-Observing] Re: Rapid motion binary stars
- From: "Steve Coe" <stevecoe@xxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Tue, 21 Mar 2006 23:30:28 -0700
Jack;
Thank you, I will add that to the check list. Always more to do on this
project.
Steve
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Jack Jones
Sent: Tuesday, March 21, 2006 11:07 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Rapid motion binary stars
Hi Steve,
Did you check zeta Aqr? I have PA of 180, shows 249 in DS list v.1 =
(1990).
Jack=20
>Howdy all;
=20
I am working on an update of the SAC double star database and need some
double checking, please. I have used Brian Workman's double star =
calculator
Excel spreadsheet program to determine the motion in the future of some
famous doubles. I know that a few of you use the program to determine =
the
orbit of stars, would you please check these and make certain that the =
notes
I have written are accurate.
=20
The motivation here is that the old SAC double star data was rarely =
used.
So, instead of creating a huge database of over 10,000 stars by paring =
down
the WDS, we decided to put together some smaller lists from people who =
enjoy
doubles and have created smaller lists that we could combine. That is =
the
plan.
=20
We have used the SAC double star list, the Mullaney and McCall articles =
from
sky and Tell, and several other lists to create a database of over 1500
multiple stars at this point.
=20
So, take a look at these and see if you agree with what I have written. =
=20
Thanks for your time and effort;
Steve Coe
=20
=20
Eta Cas Opening until 2127; then sep 14.8'' ; PA 5.6
Now--sep 13.1'' ; 320 deg PA
=20
Iota Leo Opening until 2064; then sep 2.7'' ; PA 70
Now--sep 1.9'' ; 109 deg PA
=20
Gamma Vir Closing until 2008; then sep 0.4''; PA 109; rapid opening =
after
2008
Now--sep 0.6''; 209 deg PA
=20
78 UMa Closing until 2027; then sep 0.4''; PA 196 deg; slow opening
after 2027=20
Now--sep 1.4''; 89.7 deg PA
=20
44 Boo Opening until 2007; Closest in 2034; then sep 0.26''
Now--sep 2.4''; 55.7 deg PA
=20
Lambda OPH Opening until 2008; little change in separation; PA 36 deg
Now--1.6'' ; 35 deg
=20
Zeta Her Opening until 2024; then sep 1.6'' ; PA 87 deg
Now--1.1'' ; 210 deg
=20
mu Dra Opening until 2262; then sep 5.7'' ; PA 273 deg
Now--2.3'' ; 10 deg
=20
70 Oph Opening until 2024; then sep 6.7'' ; PA 118 deg
Now--5.2'' ; 136 deg
=20
Alpha Psc Closing until 2109; then sep 0.7'' ; PA 140 deg
Now--1.8'' ; 267 deg
=20
Sirius Opening until 2026; then 11'' ; PA 57 deg
Now--7.4'' ; 104 deg
=20
Alpha Cen Closing to 2038; then 1.8'' ; PA 95 deg
Now--9.4''; 233 deg
=20
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please=20
send personal replies to the author, not the list.
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See message header for info on list archives or unsubscribing, and =
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