[vsnet-alert 8780] Re: NLMC'05 slowly fading

[Bernard Heathcote]

There was a typo error in my last email, the second line of data is for V, 
not R, magnitude. The correct data should read:

Dec 22.5014    JD 2453727.0014    R=12.33 +/-0.03
Dec 22.5056    JD 2453727.0056    V=12.81 +/-0.01

Sorry for that.
Bernard


----- Original Message ----- 
From: "Bernard Heathcote" <bd-heath at bigpond.net.au>
To: "W.Liller" <wliller at compuserve.com>; <aavso at aavso.org>; "Abby" 
<afjones at ts.co.nz>; "Bill Allen" <whallen at xtra.co.nz>; "Berto" 
<bmonard at mweb.co.za>; "chick" <chelsea at astro.umn.edu>; "Duerbeck" 
<hilmar at uni-muenster.de>; "Dan Green" <dgreen at cfa.harvard.edu>; "Howard" 
<bond at stsci.edu>; "Kato, T" <tkato at kusastro.kyoto-u.ac.jp>; "Krautter" 
<J.Krautter at lsw.uni-heidelberg.de>; "massimo" <massimo at arcetri.astro.it>; 
"Mati" <morel at ozemail.com.au>; "Pearce" <arpearce at ozemail.com.au>; "Raquel" 
<rays at webcable.com.br>; "rypers" <rypers at yahoo.com>; "Patrick Schmeer" 
<extpasc at yahoo.de>; "Sumner Starrfield" <starrfie at susie.la.asu.edu>; 
"vsnet-alert" <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>
Sent: Saturday, December 24, 2005 6:05 AM
Subject: Re: [vsnet-alert 8778] NLMC'05 slowly fading


> Hola Bill,
> I measured NLMC'05 again on 22 Dec and found it had brightened by 0.27 (V) 
> mag. Is this common nova behaviour?
>
> Dec 22.5014    JD 2453727.0014    R=12.33 +/-0.03
> Dec 22.5056    JD 2453727.0056    R=12.81 +/-0.01
>
> Bernard Heathcote
> Cielos claros y oscuros!
>
>
> ----- Original Message ----- 
> From: "W.Liller" <wliller at compuserve.com>
> Sent: Friday, December 23, 2005 2:34 AM
> Subject: [vsnet-alert 8778] NLMC'05 slowly fading
>
>
> Hola Everyone -
>
> Here are three more recent magnitudes for NLMC'05.  In chronological 
> order:
>
> Taken by Fabio H. Carvalho of Assis-SP, Brazil with a Kodak Dx7620 digital
> camera and a 254mm f/6 Newtonian.  Image kindly sent to me by Raquel 
> Shida.
> Reduced by W Liller using the standards supplied by Morel:
>
> Dec. 18.9868    JD 2453723.4868   V = 13.04 +/- 0.03 (est)
>
> Sent to me by Bernard Heathcote of Glenhope, Victoria, Australia:
>
> Dec. 19.5396    JD 2453724.0396 V = 13.08 +/- 0.01
>
> Observation by W.Liller, again using standards supplied by Morel:
>
> Dec. 20.0994    JD 24533724.5994        V = 13.14 +/- 0.05.
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> I also append the text of an e-mail that I sent to Arne Henden of the 
> AAVSO
> on Dec 12:
>
>        All the best to all,    Bill Liller
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Convinced as I now am that Morel's stars at V = 12.56 and 11.42 are not
> seriously variable, I have redone the reductions.  I send you herewith my
> revised V mags for N LMC '05.  For these I used five comparison stars from
> Morel's list identifiable from their V mags, namely 11.42, 12.13, 12.56 
> and
> 13.29; plus one from Guide 8/Tycho with V = 11.52.  And for one night -- 
> Dec 9 -- just to make a thorough check, I used a total of 12 stars with
> published Vs.
>
> Here are the revised magnitudes.  (Anre:  I've also listed mags just
> received from Bernard Heathcote and Peter Nelson.  Thank you both !)
>
> -------------------------
>                        Liller revised  Heathcote (H), Nelson (N)
>
> Nov 29.066    JD 2453703.566  12.90 (CCD, n.f.)
>
> Dec 3.870       ----         ----               H('JD 708.170):   12.57
>
> Dec 4.071     JD 2453708.571   V = 12.43        N(Dec 4.484): 12.51
>
> Dec 5.077    JD 2453709.577    V = 12.29        N(Dec 5.469): 12.07
>
> Dec 6.067    JD 2453710.567    V = 12.18
>
> Dec 7.093    JD 2453711.593     V = 12.44       H('JD 712.208): 12.61
>
> Dec 8.066    JD  2453712.566    V = 12.73
>
> Dec 9.124    JD  2453713.624     V = 12.65      H('JD 714.100):  12.55
>
> Here, copied from the emails received today:
>
> Heathcote
> 3 Dec    JD 2453708.170116    V=12.57 +/-0.01
> 7 Dec    JD 2453712.207801    V=12.61 +/-0.01
> 7 Dec    JD 2453712.217431    R=12.23 +/-0.01
> 9 Dec    JD 2453714.099954    V=12.55 +/-0.01
>
> Nelson
> Nov 27.5660  CCDV=12.90, B-V=0.67
> Dec 04.4836  CCDV=12.51
> Dec 05.4691  CCDV=12.07, B-V=0.27
>
>
> -- 
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>