[vsnet-chat 7273] Re: U Mensae

[Peter F Williams]

Hi Alan / Arne,

U Men is covered by charts 807/808 of the VSS RASNZ (Series 18 charts).  807
is the finder chart and 808 marks the star mentioned by Arne as the
variable.

The comparisons are a lettered sequence but I understand Mati Morel is
currently working through all the VSS charts to establish reliable V mags
from the ASAS3 data.

I will send you copy charts in the next few days.

Best wishes.

Peter Williams





-----Original Message-----
From: vsnet-chat-bounces at ooruri.kusastro.kyoto-u.ac.jp
[mailto:vsnet-chat-bounces at ooruri.kusastro.kyoto-u.ac.jp]On Behalf Of
arne
Sent: Friday, 3 February 2006 1:12 AM
To: A Plummer
Cc: vsnet-chat at ooruri.kusastro.kyoto-u.ac.jp
Subject: [vsnet-chat 7272] Re: U Mensae


A Plummer wrote:
> Dear All,
>
> Does anyone out there observe, or have a chart, or any info, on U Men? I
> have been using the AAVSO 'd' chart for a couple of years, and I've not
> had much sucess with my observations. It is identifiesd as SRa, 407d, 8
> - 10.9p mag. The object appears to be plotted correctly, but it has been
> dim - at least to my eyes - for a couple of years. I've never seen it
> over 11th mag, and that is way out of the chart's sequence.  Can any one
> help?
>
According to ASAS3:
http://www.astrouw.edu.pl/~gp/asas/asas.html
U Men is located at 04:09:35.9 -81:51:17 J2000
and shows a fairly regular light curve with period about 400 days.

Looking at the d-scale AAVSO preliminary chart, it looks like the
wrong star is identified.  U Men is the bright star to the west.
Arne