[vsnet-alert 26008] Re: ASASSN-21lk: new transient (mag. 14.4) in Scorpius

[Berto Monard astroberto13m@gmail.com via vsnet-alert]

Photometry of KKO observations of the possible nova candidate ASASSN-21lk
on 2021 June 24.80 confirm it to be a red object:
object was nearby the full moon

12.8B +/- 0.2
11.37V +/- 0.05
10.37R +/- 0.05
9.37I +/- 0.05

Berto Monard / CBA KKO

On Wed, Jun 23, 2021 at 11:31 AM Berto Monard <astroberto13m at gmail.com>
wrote:

> This OT was observed at mag 12.3CR (unfiltered CCD) on June 22.79 at KKO.
> Filtered observations will be done ASAP, e.g. after the clouds move on...
>
> Berto Monard / CBA KKO
> Calitzdorp, S Africa
>
>
>
> On Wed, Jun 23, 2021 at 11:18 AM FIDRICH Róbert fidusz at gmail.com via
> vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> wrote:
>
>> Dear Friends,
>>
>> I managed to catch ASASSN-21lk with a 135mm Samyang telephoto lens -
>> remotely from Chile (iTelescope.net).
>>
>> It was was around 13.0TG on June 23.2334UT and 11.6TR on June 23.2350UT.
>> Reddish color. Probably a galactic nova.
>>
>> See: https://twitter.com/fidusz/status/1407588671000387584 and
>> https://twitter.com/fidusz/status/1407627129425125381
>>
>> Clear skies,
>>
>> Robert Fidrich
>> HAA/VSS
>>
>> 2021. 06. 22. 17:52 keltezéssel, Patrick Schmeer pasc1312-aavso at yahoo.de
>> via vsnet-alert írta:
>> > ASASSN-21lk  (N:/UG:)
>> > https://www.aavso.org/vsx/index.php?view=detail.top&oid=2223219
>> >
>> > Recent ASAS-SN Sky Patrol light curve and data:
>> >
>> https://asas-sn.osu.edu/sky-patrol/coordinate/33539ced-d7ca-4dc1-9f7b-b8c6d09da334
>> >
>> > No previous brightening in ASAS-SN Sky Patrol or ATLAS data.
>> >
>> > Spectroscopy, precise astrometry and multiband photometry (V, B, ...)
>> are required.
>> >
>> > Clear skies,
>> > Patrick
>> > -------
>> > References:
>> > All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
>> > - Shappee et al., 2014ApJ...788...48S
>> > - Kochanek et al., 2017PASP..129j4502K
>> > Asteroid Terrestrial-impact Last Alert System (ATLAS):
>> > - Tonry et al., 2018PASP..130f4505T
>> >
>>
>>