[vsnet-chat 701] Re: Comparison sequences

[Gianluca Masi <gianmasi@fr.flashnet.it>]

Taichi Kato wrote:
> 
>     I have been working with USNO A1.0 in order to use the catalog for
> preliminary comparison stars for the faint end of variable stars.
> I have derived a tentative equation V = r + 0.375*(b-r) for b and r
> magnitudes in USNO A1.0, which I used to produce some preliminary charts
> to be posted to vsnet. 

Dear Dr. Kato,
is there any recommended relation in the R band?

Thank you, and have a nice weekend.

Gianluca

-- 
***********************************************************************
* Gianluca Masi                           "Two things fill the soul   *
* Via Madonna de Loco, 47               with awe and reverence [...]: *
* 03023 Ceccano (FR)                     the starry sky above me and  *
* ITALY                                    the moral law within me"   * 
* email: gianmasi@fr.flashnet.it                                      *
* http://vsnet.eurolink.it/comets/                        I. Kant       *
***********************************************************************

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp