Current purchased versions of XEphem have UCAC4 in the download tars. ?
But see Teixeira article re bad UCAC proper motions for V>12
from Allan Meyer's cell phone
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On Nov 20, 2014, at 12:52 AM,
xephem@... wrote:
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Wed Nov?19,?2014 1:43?pm (PST) . Posted by:
Where i can download xephem friendly star catalogues for astrometry? I
would like to download USNO B1, UCAC 4, maybe NOMAD catalog... are those
compatible with xephem? I've been using USNO A2.0 for many years but i
need to upgrade...
Thanks,
--
Santiago Roland.-
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Wed Nov?19,?2014 7:51?pm (PST) . Posted by:
On 11/19/2014 04:42 PM, Santiago Roland
santiago@... [xephem] wrote:
> Where i can download xephem friendly star catalogues for astrometry? I
> would like to download USNO B1, UCAC 4, maybe NOMAD catalog... are those
> compatible with xephem? I've been using USNO A2.0 for many years but i
> need to upgrade...
Neither USNO B1 nor NOMAD are available for download, they
are too large.
To get a copy of UCAC4 send email to
brenda.hicks@... with a subject
line of UCAC4.
Wed Nov?19,?2014 1:46?pm (PST) . Posted by:
I downloaded the latest files from MPC (the links are shown in the
screenshot), maybe they were not updates properly? I also hit the
download button for Lowell and AstMPC_dim... will try again...
Best regards,
Santiago Roland.-
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El 12/11/14 a las 02:40,
ecdowney@... [xephem] escribi¨®:
>
>
> Like it says, your ephemerides are out of date, which means the
> location, and hence magnitudes, for your object are unreliable.
>
>
> I just downloaded the latest elements from Lowell and 2010 OU100 is
> reported as being magnitude 21.7.
>
>
