[vsnet-alert 13595] Re: Nova Lupi 2011

Fri Aug 19 02:34:29 JST 2011

 Hi,

 I had tonight another run on the Nova with CCD. In I filter the mean
 magnitude is about 9.4 mag, about 0.2 mag lower than yesterday. In V filter
 the mean magnitude is about 11.5 similar than yesterday.
 There is some variation of the magnitude over time over a couple of hours 
of
 observation.

 Regards,

 Josch

 http://www.astronomie.be/hambsch
> ----- Original Message ----- 
> From: "Rob Kaufman" <rob.kau at gmail.com>
> To: "Rod Stubbings" <stubbo at sympac.com.au>; "vsnet-alert" 
> <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>; <nbrown77 at bigpond.com>; "Mati 
> Morel" <mmorel7 at bigpond.com>; <aavso-discussion at mira.aavso.org>
> Sent: Thursday, August 18, 2011 3:02 PM
> Subject: [vsnet-alert 13594] Re: Nova Lupi 2011
>
>
>> Sky partly cleared late tonight (18 Aug) and I obtained a very poor 
>> quality
>> DSLR image (RGB).  The nova appears to be a similar magnitude to 16 Aug
>> (~11.3, green channel, 12:15 UT).  With my earlier three images, the nova
>> appeared roughly the same in R, G & B channels.  Tonight however I notice
>> for the first time that the red channel appears considerably brighter 
>> than
>> the green, which is considerably brighter than the blue.  Not much I can 
>> do
>> without a better image.  Might clear a bit more later.
>>
>> Cheers -
>>
>> Rob Kaufman, KBJ
>> Bright, Vic, Australia
>>
>> On Tue, Aug 16, 2011 at 9:21 PM, Rob Kaufman <rob.kau at gmail.com> wrote:
>>
>>> Just got a shot in moonlight & can confirm dramatic decline:
>>> http://i727.photobucket.com/albums/ww271/Rob_Kau/NLup201116Aug2011text.jpg
>>>
>>> (Need longer exposures at this magnitude.)
>>>
>>> Nova Lupi 2011        110814.382    95    KBJ (94,97; ptg)
>>> Nova Lupi 2011        110816.444   113   KBJ (112, 115; AAVSO Chart 
>>> 5224n;
>>> ptg)
>>>
>>> Cheers -
>>>
>>> Rob Kaufman
>>> Bright, Vic, Australia
>>>
>>>
>>>
>>>   On Tue, Aug 16, 2011 at 7:55 PM, Rod Stubbings 
>>> <stubbo at sympac.com.au>wrote:
>>>
>>>> **
>>>> An observation on N Lup 2011 tonight now shows it to have faded by 
>>>> almost
>>>> 2 magnitudes!
>>>>
>>>> N LUP 2011        110811.564   101  Stu.RASNZ
>>>> N LUP 2011        110812.579   100  Stu.RASNZ
>>>> N LUP 2011        110814.395    95  Stu.RASNZ
>>>> N LUP 2011        110816.376   113 Stu.RASNZ
>>>>
>>>> Regards,
>>>> Rod.
>>>>
>>>>
>>>> ________________________________
>>>>
>>>> Rod Stubbings,
>>>> Tetoora Observatory,
>>>> Tetoora Road,
>>>> Vic, Australia.
>>>> stubbo at sympac.com.au
>>>> http://rodstubbingsobservatory.wordpress.com/
>>>>
>>>> _________________________________
>>>>
>>>>  ----- Original Message -----
>>>> *From:* Rob Kaufman <rob.kau at gmail.com>
>>>>   *To:* vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>
>>>> *Cc:* Rod Stubbings <stubbo at sympac.com.au> ; nbrown77 at bigpond.com ; 
>>>> Mati
>>>> Morel <mmorel7 at bigpond.com> ; aavso-discussion at mira.aavso.org
>>>> *Sent:* Tuesday, August 16, 2011 10:47 AM
>>>> *Subject:* Re: [vsnet-alert 13587] Re: Nova Lupi 2011
>>>>
>>>> Here's a link to a crop of a widefield of the area reported to have 
>>>> been
>>>> taken in the Netherlands on 20:22, 25 July UT, showing the nova.  Quite
>>>> fuzzy and crowded and not terribly useful for a magnitude estimate, but 
>>>> it
>>>> appears to lie between the 104 & 112 comp stars, quite bright.
>>>> http://tinyurl.com/3cfkngk
>>>>
>>>> Thanks for the additional comp stars Mati.
>>>>
>>>> Cheers -
>>>>
>>>> Rob Kaufman
>>>> Bright, Vic, Australia
>>>>
>>>> On Mon, Aug 15, 2011 at 12:00 AM, <hambsch at telenet.be> wrote:
>>>>
>>>>> I have been taking time series images last night (V and I filters) and
>>>>> also saw a severe brightness increase. Had to cut down my exposure 
>>>>> time by
>>>>> half.
>>>>> Will take some days to get the data analysed since I am put of town 
>>>>> until
>>>>> Tuesday evening.
>>>>>
>>>>> Josch
>>>>> ----- Originele e-mail  -----
>>>>> Van: "Rod Stubbings" <stubbo at sympac.com.au>
>>>>> Aan: "Rob Kaufman" <rob.kau at gmail.com>, 
>>>>> aavso-discussion at mira.aavso.org,
>>>>> vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
>>>>> Verzonden: Zondag 14 augustus 2011 14:05:07 GMT +01:00 Amsterdam /
>>>>> Berlijn / Bern / Rome / Stockholm / Wenen
>>>>> Onderwerp: [vsnet-alert 13585] Re: Nova Lupi 2011
>>>>>
>>>>> I have also been keeping an eye on N Lup and noticed a steady rise and
>>>>> tonight brighter around 9.5.
>>>>>
>>>>> N LUP 2011        110811.564   101  Stu.RASNZ
>>>>> N LUP 2011        110812.579   100  Stu.RASNZ
>>>>> N LUP 2011        110814.395    95  Stu.RASNZ
>>>>>
>>>>> Regards.
>>>>> Rod.
>>>>>
>>>>> ________________________________
>>>>>
>>>>> Rod Stubbings,
>>>>> Tetoora Observatory,
>>>>> Tetoora Road,
>>>>> Vic, Australia.
>>>>> stubbo at sympac.com.au
>>>>> http://rodstubbingsobservatory.wordpress.com/
>>>>>
>>>>> _________________________________
>>>>> ----- Original Message -----
>>>>> From: "Rob Kaufman" <rob.kau at gmail.com>
>>>>> To: <aavso-discussion at mira.aavso.org>;
>>>>> <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>
>>>>> Sent: Sunday, August 14, 2011 8:38 PM
>>>>> Subject: [vsnet-alert 13584] Nova Lupi 2011
>>>>>
>>>>>
>>>>> > After imaging this nova on 8 Aug at mag 10.3, tonight I had my first
>>>>> > opportunity to have another 'look' at it.  It has brightened
>>>>> considerably.
>>>>> > Image here:
>>>>> >
>>>>> http://i727.photobucket.com/albums/ww271/Rob_Kau/NovaLupi201114Aug2011crop.jpg
>>>>> >
>>>>> > In generating a chart in AAVSO's VSP, I noticed that the visual
>>>>> sequence
>>>>> > is
>>>>> > pretty wobbly for mags brighter than the discovery mag.  The nova
>>>>> appears
>>>>> > to
>>>>> > be sitting somewhere around midway between the 99 and 84 comp stars 
>>>>> > at
>>>>> the
>>>>> > moment (marked on image linked above), a big gap of 1.5 magnitudes.
>>>>>  Any
>>>>> > chance of a few more comp stars?  Thanks.
>>>>> >
>>>>> > Cheers -
>>>>> >
>>>>> > Rob Kaufman
>>>>> > Bright, Victoria, Australia
>>>>> >
>>>>>
>>>>
>>>>
>>>
> 